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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 1208. Отображено 100.
22-03-2012 дата публикации

Methods and Apparatus for Enhanced Gas Distribution

Номер: US20120068111A1
Автор: Ashfaq Shaikh
Принадлежит: Eastman Chemical Co

Methods and apparatus for introducing a gas into the reaction zone of a reactor. Such methods and apparatus can more evenly distribute the gas throughout the reaction zone. Spargers for introducing a gas into the reaction zone of a reactor can be employed in systems and methods for carrying out the liquid-phase oxidation of an oxidizable compound, such as para-xylene.

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Номер записи: 1
19-04-2012 дата публикации

Multiple Loop Reactor for Olefin Polymerization

Номер: US20120093693A1
Автор: Hugo Vandaele
Принадлежит: Total Petrochemicals Research Feluy SA

The present invention provides a multiple loop reactor suitable for polymerizing olefins comprising at least two interconnected loop reactors, whereby said connection essentially consists of one or more transfer lines suitable for transferring polymer slurry from a reactor to another reactor and whereby said transfer line extends substantially horizontally. The invention further relates to a process for producing olefin polymers in a multiple loop react or according to the invention. The invention also relates to the use of a transfer line for transferring polymer slurry from a reactor to another reactor in a multiple loop reactor comprising at least two interconnected loop reactors, whereby said transfer line extends substantially horizontally.

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Номер записи: 2
26-04-2012 дата публикации

Method and apparatus for manufacturing trichlorosilane

Номер: US20120100044A1
Автор: Eiji Komai, Harumi Satoh, Toshiyuki Ishii
Принадлежит: Mitsubishi Materials Corp

An apparatus 1 for manufacturing trichlorosilane includes a decomposition furnace 2 into which polymers and hydrogen chloride are introduced, the decomposition furnace 2 includes: a heating device 11 which heats an interior of the decomposition furnace 2; a reaction chamber 4 which is formed in the decomposition furnace; a center tube 3 which is inserted in the reaction chamber 4 along a longitudinal direction of the reaction chamber and has a lower-end opening portion 3 a; raw-material-supply pipes 5 and 6 which supplies the polymer and the hydrogen chloride to the reaction chamber 4 at an exterior of the center tube 3; and a gas-discharge pipe 7 which leads out reacted gas from the center tube 3, the apparatus 1 further includes a fin 14 that leads the polymer and the hydrogen chloride to the lower-end opening portion 3 a of the center tube 3 so as to stir the polymer and the hydrogen chloride.

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Номер записи: 3
28-03-2013 дата публикации

Static reactive jet mixer, and methods of mixing during an amine-phosgene mixing process

Номер: US20130079550A1
Автор: Hua Bai, Jorg-Peter Gehrke, Joydeep Mukherjee, Paul Aaron Gillis, Sanjib Kumar Das Sharma
Принадлежит: Dow Global Technologies LLC

This disclosure relates to a static mixer ( 1 ) with a plurality of nozzles, and more generally, to a mixer and method of use thereof for mixing phosgene and amine with shaped jets or at least two rows of nozzles ( 15,16 )where the second row ( 16 ) is used to enrich an area of deficit of the phosgene flow within the static reactive jet mixer ( 1 ). Configurations of enriching secondary flow include the use of concentric, eccentric, or offset jets of amine/phosgene, and the use of nozzles with different and regular geometries to help focus amine/phosgene to a specific area of the principal phosgene flow.

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Номер записи: 4
01-08-2013 дата публикации

Water treatment device and water treatment method

Номер: US20130193087A1
Автор: Kazuhiko Kano, Kenichi Kataoka, Shigeru Senzaki, Tsuyoshi Moriya, Youichi Shimanuki
Принадлежит: Tokyo Electron Ltd

Provided is a water treatment device with which organic substances contained in raw water to be treated are decomposed to thereby alleviate the load to be imposed on a downstream filter and with which it is possible to avoid corrosion of the piping or the like. The water treatment device 12 includes a large-bore channel 22 , a small-bore channel 23 , and a pressure pump 24 which pressurize raw water 15 a to a given pressure, the raw water containing organic substances, and further includes a laser light source 25 and a condensing lens 26 which irradiates laser light 37 upon the pressurized raw water 15 a to heat the raw water to a given temperature, wherein the laser light 27 emitted from the laser light source 25 is condensed by the condensing lens 26 on a region 29 that is located in the small-bore channel 23 through which the pressurized raw water 15 a flows and that is separated from the wall of the channel, thereby heating the raw water 15 a present in this region 29 and yielding supercritical water or subcritical water to decompose the organic substances contained in the raw water 15 a.

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Номер записи: 5
23-01-2014 дата публикации

Process for the production of hexamethlenediamine

Номер: US20140024859A1
Автор: Alberto Corona, Luciano Guida, Stefano Alini, Tommaso Crippa
Принадлежит: Radici Chimica SpA

It is described a process for the production of hexamethylenediamine by hydrogenation of adiponitrile, comprising an improved step of regeneration of the catalyst. Also described are an equipment for the production of hexamethylenediamine, and a washing apparatus ( 14 ) for implementing the catalyst regeneration step.

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Номер записи: 6
03-01-2019 дата публикации

PROCESS FOR THE PRODUCTION OF THERMALLY MODIFIED STARCH

Номер: US20190002593A1
Автор: Vezzani Massimo
Принадлежит: Ambiente E Nutrizione S.R.L.

Process for the production of thermally modified starch comprising the steps of mixing starch in powder form having a specific moisture content with an alkaline water solution to obtain a wet powder; feeding a continuous flow of said wet powder into a continuous dryer together with a continuous flow of hot air; discharging a continuous flow of dried powder from said continuous drier; supplying said continuous flow of said dried powder into a turbo-reactor, in which the inner wall of said turbo-reactor is maintained at a specific temperature; converting said dried powder into a thermally inhibited starch; and discharging said thermally inhibited starch from said turbo-reactor; it is also disclosed a thermally inhibited starch obtained from the aforementioned process with enhanced physical chemical properties. 1. A process for continuous modification of starch , comprising the steps of:a) mixing starch in powder form having a moisture content between 9% and 25% with an alkaline water solution to obtain a wet powder;b) feeding a continuous flow of said wet powder into a continuous dryer together with a continuous flow of hot air, said flow of hot air having a temperature between 100° C. and 160° C.;c) discharging a continuous flow of dried powder from said continuous drier, said dried powder having a moisture content between 2% and 4%;d) providing a turbo-reactor comprising a cylindrical tubular body having at least one inlet opening for the introduction of said continuous flow of dried powder and at least one discharge opening, a heating jacket for bringing the temperature of said tubular body to a predetermined temperature and a rotor, disposed in the cylindrical tubular body and comprising a shaft provided with elements projecting radially from it;e) supplying said continuous flow of said dried powder into said turbo-reactor, in which the inner wall of said turbo-reactor is maintained at a temperature between 150° C. and 250° C. by means of said heating jacket and ...

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Номер записи: 7
02-01-2020 дата публикации

Production Processes, Systems, Methods, and Apparatuses

Номер: US20200002621A1
Автор: Osterloh James D., Spitzauer Michael P.
Принадлежит: GPI PATENT HOLDING LLC

The present disclosure provides production processes that can include exposing a carbon-based material to liquid media to form hydrocarbon fuel. Waste to fuel conversion processes as well as waste material processing reactors are provided that can be configured to convert waste to fuel. Heat exchangers, power generation processes and combustion turbine exhaust apparatus are also provided. Fuel generation processes and generation systems are provided. Reaction media conduit systems as well as processes for servicing reactant media pumps coupled to both inlet and outlet conduits containing reactant media, are also provided. 110-. (canceled)11. A fuel generation system comprising:a reactor configured to house a liquid reaction media and receive solid carbon based material;a distillation apparatus coupled to the reactor and configured to receive gaseous hydrocarbon fuel from the reactor; anda combustion turbine coupled to the distillation apparatus and configured to receive distillate portions from the distillation apparatus.12. The system of further comprising a conveyor apparatus associated with reactor claim 11 , the conveyor apparatus configured to convey material to a receiving portion of the apparatus.13. The system of further comprising a heat exchanger coupled to the reactor claim 11 , the heat exchanger configured to heat the liquid reaction media by providing heat from a heat exchanger fluid.14. The system of wherein the heat exchanger is coupled to the combustion turbine.15. The system of wherein at least a portion of the heat exchanger fluid of the heat exchanger circulates within an exhaust apparatus of the combustion turbine.16. The system of wherein the reactor comprises a media circulating conduit configured to circulate the liquid reaction media.17. The system of wherein conduit comprises a fluid pump claim 16 , the conduit further configured to have the fluid pump removed from the conduit while maintaining substantially all the fluid within the conduit ...

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Номер записи: 8
12-01-2017 дата публикации

METHOD FOR CONTINUOUSLY PRODUCING KETOMALONIC ACID COMPOUND USING FLOW REACTOR

Номер: US20170008829A1
Автор: Tani Shinki
Принадлежит: Ihara Chemical Industry Co., Ltd.

The purpose of the present invention is to provide a method for continuously producing a ketomalonic acid compound such as a ketomalonic acid diester or a hydrate thereof, which is an industrially useful compound, on an industrial scale and in a safe and steady manner. The present invention relates to: a method in which a malonic acid diester, a carboxylic acid compound and a chlorous acid compound are used as raw material compounds, and these raw material compounds are mixed together to prepare a mixture and the mixture is supplied to a flow reactor continuously, thereby continuously producing a corresponding ketomalonic acid diester or a hydrate thereof; and a continuous production apparatus for performing the method. 2. The method according to claim 1 , wherein the chlorous acid compound is supplied as an aqueous solution of a chlorous acid compound.3. The method according to claim 1 , wherein the malonic acid diester or a mixture of the malonic acid diester and the carboxylic acid compound is supplied in the absence of a solvent.4. The method according to claim 1 , wherein the flow reactor(s) are one or two or more tubular flow reactors.5. The method according to claim 1 , wherein the flow reactor(s) are provided with a temperature control part configured to control a temperature.6. The method according to claim 5 , wherein the temperature control part provided to the flow reactor(s) is a bath and a temperature of the bath is 80° C. or higher.7. The method according to claim 1 , wherein the method comprising:(D) a process of further aging the reaction mixture obtained in the process of reacting the mixture in addition to the processes of said (A) to (C).8. The method according to claim 7 , wherein the aging process (D) is performed in one or two or more second flow reactors.9. The method according to claim 1 , wherein the method comprising:(E) a process of quenching the reaction by mixing a quench liquid in addition to the processes of said (A) to (C) or the ...

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Номер записи: 9
14-01-2021 дата публикации

REACTOR AND METHOD FOR CONTINUOUS POLYMERIZATION

Номер: US20210008519A1
Автор: Feller Rolf, Paul Hanns-Ingolf, Wagner Paul, Wiesner Udo
Принадлежит:

The invention relates to a reactor and to a method for continuous polymerization, in which said reactor for the continuous production of polymers, particularly synthetic rubbers, contains at least one substantially tubular reactor housing (), wherein said reactor housing () has a drive shaft () that is connected to at least one agitator () arranged such that it can rotate inside the reactor housing (), and the agitator contains at least one, and preferably two, three or four helical mixing elements () which are designed to be preferably close to the wall or to come into contact with the wall. 1. A reactor for the continuous production of polymers , in particular synthetic rubbers , comprising at least one essentially tubular reactor housing , the reactor housing having a drive shaft which is rotatably arranged with at least one inside the reactor housing Stirrer is connected , the stirrer containing at least one , preferably two , three or four helical mixing elements , which are preferably designed close to the wall or in contact with the wall.2. The reactor according to claim 1 , characterized in that the geometric center axis is arranged essentially horizontally or essentially vertically.3. The reactor according to claim 1 , characterized in that it has an internal displacement body which is arranged essentially along the geometric central axis.4. The reactor according to claim 1 , characterized in that the stirrer has at least one helical mixing element designed close to the wall or in contact with the reactor housing claim 1 , and at least one helical mixing element designed close to the wall or in contact with the wall of the internal displacement body.5. The reactor according to claim 3 , characterized in that the internal displacement body is designed in such a way that a temperature control medium can flow through it.6. The reactor according to claim 1 , characterized in that the helical mixing elements are designed such that the distance of the helical ...

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Номер записи: 10
09-01-2020 дата публикации

REACTION DEVICE WITH HEAT EXCHANGER AND USE THEREOF

Номер: US20200009524A1
Автор: Aigner Jonathan, Hense Peter, Hornung Andreas, Hornung Thorsten, Pedrazzini Alberto
Принадлежит:

A reaction device is provided with a first wall that defines an interior in which a stirring mechanism is located. A heat exchanger is at least partly provided on the first outer wall surface facing away from the interior and/or on the stirring mechanism, wherein the heat exchanger has a grate structure, and at least two layers are provided which have a grate structure. Thus, it is possible to transfer heat in a precise and efficient manner primarily by means of thermal radiation in endothermic processes at different temperature levels, in particular pyrolysis, gassing, and reforming processes, and thereby use the exhaust heat for other processes. 1. A reaction device comprising:a first wall, which defines an interior, the interior configured to accommodate a stirring mechanism,wherein a heat exchanger is at least partly on a surface of the first wall that faces away from the interior and/or on the stirring mechanism, the heat exchanger including at least two layers each of which has a grate structure.2. The reaction device according to claim 1 , wherein the reaction device has a double wall comprising:the first wall, anda second wall, so that an intermediate space, which accommodates the heat exchanger, is formed between the first wall and the second wall.3. The reaction device according to claim 2 , wherein the reaction device is a tube furnace.4. The reaction device according to claim 1 , wherein the stirring mechanism is a screw conveyor.5. The reaction device according to claim 4 , wherein the screw conveyor comprises screw sections claim 4 , which have different pitches.6. The reaction device according to claim 1 , wherein the reaction device has at least two reaction zones with different temperatures.7. The reaction device according to claim 1 , wherein the layers of the heat exchanger are connected to one another at contact points of the layers or contact surfaces of the layers.8. The reaction device according claim 1 , wherein the structure of a grate ...

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Номер записи: 11
08-01-2015 дата публикации

Cooling between multiple polyolefin polymerization reactors

Номер: US20150011814A1
Автор: Catherine M. Gill, Elizabeth A. Benham, Joel A. Mutchler, Maruti Bhandarkar, Rebecca A. Gonzales, Scott E. Kufeld, Thanh T. Nguyen, Timothy O. Odi
Принадлежит: Chevron Phillips Chemical Co LP

A system and method for a first reactor to produce a transfer slurry having a first polyolefin polymerized in the first reactor, a heat-removal zone to remove heat from the transfer slurry, and a second reactor to receive the transfer slurry cooled by the heat-removal zone, the second reactor to produce a product slurry having a product polyolefin which includes the first polyolefin and a second polyolefin polymerized in the second reactor.

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Номер записи: 12
02-02-2017 дата публикации

DEVICE FOR CONDUCTING SONOCHEMICAL REACTIONS AND PROCESSING LIQUIDS

Номер: US20170028375A1
Автор: Kozyuk Oleg
Принадлежит:

A device for processing a liquid via hydrodynamic cavitation, the device including a housing, a channel element and a rotor, the channel element defining a channel and having at least one discharge orifice extending from the channel perpendicular to the longitudinal axis of the channel element. The rotor has a rotor channel and rotates about the portion of the channel element containing the discharge orifice, to periodically open and close the discharge orifice, thereby creating a water hammer hydraulic pulse in the channel. 1. A device for processing a liquid comprising a housing , a channel element and a rotor , the channel element being connected to the housing and extending at least partially within the housing , a distal portion of the channel element having a cylindrical external surface , the channel element having a first longitudinal axis , the channel element having at least one discharge orifice having a second longitudinal axis which extends through a point on the first longitudinal axis and is perpendicular to the first longitudinal axis , the rotor being mounted on a shaft and being located within the housing , the rotor having a cylindrical internal surface facing the channel element cylindrical external surface , the rotor having at least one rotor channel having a third longitudinal axis which is perpendicular to the first longitudinal axis , the rotor being rotatable about the distal portion of the channel element such that , as the rotor rotates , the rotor channel will periodically line up with the discharge orifice so that the discharge orifice is open , the channel element having at least one local constriction which defines an opening and which is located upstream from the discharge orifice.2. The device of claim 1 , wherein the rotor is rotatable about the distal portion of the channel element such that claim 1 , as the rotor rotates claim 1 , the discharge orifice is periodically closed by being covered by the internal surface of the rotor.3 ...

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Номер записи: 13
04-02-2016 дата публикации

REACTOR HAVING A VERTICAL CONDENSATION TUBE AND METHOD FOR THE POLYMERIZATION OF POLYAMIDES IN SUCH A REACTOR

Номер: US20160032050A1
Автор: KATZER Johannes, KÖNIGSMANN Bernd, Siebecke Ekkehard
Принадлежит: UHDE INVENTA-FISCHER GMBH

The invention relates to a reactor in the form of a VK tube (VK: simplified continuous), for the polymerisation of polyamides, the reactor being subdivided into an upper and lower reactor region, which are controllable independently of each other. Likewise, the invention relates to a method for the production of polyamides in which such a reactor is used. 1. A reactor in the form of a simplified continuous (VK) tube for the polymerisation of polyamides with an upper and a lower reactor region , the upper reactor region havingan inflow region for the addition of the prepolymer melt,a heating unit,a first flow tube part,a heated discharge cone, andover the entire height of the upper reactor region, a wall heating unit, andthe lower reactor region havingan inflow region for the addition of the melt from the upper reactor region and the separation of process vapour,a static cooling unit,a second flow tube part,a heated discharge cone and a discharge pipe connected thereto, andover the entire height of the lower reactor region, a wall heating unit, andthe upper and the lower reactor region being connected via a tube.2. The VK tube according to claim 1 ,wherein the heating unit is a static heating unit, or a dynamic heating unit, and/or the static cooling unit is a tube bundle, an internally heated overflow body, a plate heat exchanger or a heating coil.3. The VK tube according to{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, ', wherein, between the discharge cone of the upper reactor region and the inflow region of the lower reactor region, a metering pump or a control valve for the transport of the prepolymer is integrated.'}4. The VK tube according to claim 1 , wherein an agitator is disposed above the heating unit.5. The VK tube according to claim 1 , wherein the VK tube is connected to a prepolymerisation reactor for the prepolymerisation of polyamides claim 1 , havingan inflow region for the addition of the educts,a heating unit,a first flow tube part which has a ...

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Номер записи: 14
09-02-2017 дата публикации

Single-Screw Extrusion Desulfurization And Post-Processing System, And Method For Preparing Reclaimed Rubber

Номер: US20170037216A1
Автор: LV Baiyuan, LV Xiaolong
Принадлежит: Qingdao University of Science & Technology

A single-screw extrusion desulfurization and post-processing system and a method for preparing reclaimed rubber. The single-screw extrusion desulfurization and post-processing system comprises: a single-screw desulfurization device, a single-screw post-processing device and a closed connection device for connecting the single-screw desulfurization device and the single-screw post-processing device, the single-screw post-processing device includes a post-processing feeding unit and a post-processing unit which are connected with each other, and a post-processing screw running through the post-processing feeding unit and the post-processing unit. 1. A single-screw extrusion desulfurization and post-processing system , whereinthe system comprises: a single-screw desulfurization device;the single-screw desulfurization device includes a desulfurizing feeding unit and a desulfurizing unit which are connected with each other, and a desulfurizing screw running through the desulfurizing feeding unit and the desulfurizing unit; anda heating structure is respectively disposed in the desulfurizing feeding unit, the desulfurizing unit and the desulfurizing screw; and whereinthe system further comprises: a single-screw post-processing device and a closed connection device for connecting the single-screw desulfurization device and the single-screw post-processing device;the single-screw post-processing device includes a post-processing feeding unit and a post-processing unit which are connected with each other, and a post-processing screw running through the post-processing feeding unit and the post-processing unit.2. The single-screw extrusion desulfurization and post-processing system according to claim 1 , whereinthe desulfurizing unit includes a desulfurizing feeding cylinder and at least one stage of desulfurizing cylinder; the desulfurizing feeding cylinder is connected with the at least one stage of desulfurizing cylinder; and the desulfurizing screw runs through the ...

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Номер записи: 15
08-05-2014 дата публикации

Methods and apparatuses for detection of properties of fluid conveyance systems

Номер: US20140125052A1
Автор: Roy Edward McAlister
Принадлежит: McAlister Technologies LLC

A system and method for monitoring and/or detecting the flow of one or more fluids in a fluid system including leak detection system integral to the fluid system (e.g., at any point along a conduit, at a connection between conduits such as at a fitting assembly, etc.) configured to detect incipient, early stage levels of the leak. Based on one or more factors related to the fluid and/or the leak, the methods, devices, and systems disclosed herein can provide an indication of a suitable action or process in response to the fluid or the leak including performing preventative maintenance or providing an indication of the need of maintenance in response to the leak.

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Номер записи: 16
13-02-2020 дата публикации

PROCESS FOR THE MULTI-REACTOR SYNTHESIS OF ZEOLITE CRYSTALS HAVING A CONTROLLED PARTICLE SIZE

Номер: US20200048102A1
Автор: LUTZ CÉCILE, NICOLAS Serge
Принадлежит: Arkema France

The present invention relates to a process for preparing zeolite crystals having a multimodal particle size distribution, and the sizes of which are between 0.02 μm and 20 μm, said process comprising feeding at least two reactors each with a synthesis gel capable of forming zeolite crystals, carrying out a crystallization reaction, in parallel, in each of the at least two reactors, and mixing the reaction media of the at least two reactors, after the start of at least one of the crystallization reactions. 1. Process for preparing zeolite crystals having a multimodal particle size distribution , and the sizes of which are between 0.02 μm and 20 μm , said process comprising at least the following steps:a) preparing a synthesis gel by mixing at least one source of silica, at least one source of alumina and optionally, at least one aqueous alkali or alkaline-earth metal hydroxide solution,b) feeding at least two reactors each with a synthesis gel capable of forming zeolite crystals,c) carrying out a crystallization reaction, in parallel, in each of the at least two reactors,d) mixing the reaction media of the at least two reactors, ande) filtering the mixture of the reaction media obtained in step d), in order to separate the crystals produced from the mother liquors.2. Process according to claim 1 , wherein the at least two reactors are each fed by a synthesis gel of zeolite crystals claim 1 , it being possible for the synthesis gels to be identical or different.3. Process according to claim 1 , wherein one or more seeding agents are introduced into the synthesis gel(s) upstream of or inside at least one of the synthesis reactors or in the at least two synthesis reactors.4. Process according to claim 1 , wherein the seeding agent is chosen from nucleating gels claim 1 , zeolite crystals claim 1 , mineral particles claim 1 , and mixtures thereof.5. Process according to claim 1 , wherein the reactors used are stirred reactors for syntheses in batch mode and tubular ...

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Номер записи: 17
23-02-2017 дата публикации

Reactor Systems

Номер: US20170051239A1
Автор: Brady Cole, Cameron Knight, Cindy L. Donovan, Paul Kubera, Todd Jones
Принадлежит: Abec Inc

This disclosure relates to equipment utilized to manufacture chemical agents, particularly biopharmaceuticals. In some embodiments, reactor systems comprising a mobile carriage assembly; a disposable reaction container removably attached to the carriage assembly; and, a carriage holder into which the mobile carriage assembly may be removably inserted are provided.

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Номер записи: 18
02-03-2017 дата публикации

Method for growing carbon nanotubes

Номер: US20170057824A1
Автор: Jia-Ping Wang, Kai-Li Jiang, Peng Liu, Shou-Shan Fan, Yang Wei, Yang Wu
Принадлежит: Hon Hai Precision Industry Co Ltd, TSINGHUA UNIVERSITY

A method for growing carbon nanotubes is provided. A reactor including a reactor chamber and a substrate located in the reactor chamber is provide. The substrate is a hollow structure including a sidewall and a bottom. The hollow structure also defines an opening. The sidewall includes a carbon nanotube layer and catalyst particles dispersed in the carbon nanotube layer. A mixture of carbon source gas and carrier gas is introduced into the reactor chamber so that the mixture of carbon source gas and carrier gas flows into the hollow structure from the opening and out of the hollow structure through the sidewall. The hollow structure is heated.

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Номер записи: 19
07-03-2019 дата публикации

Performic acid on-site generator and formulator

Номер: US20190069547A1
Автор: Ariel Chatman Kleczewski, Benjamin Crew, Brian Paul BRUNNER, Catherine Hanson, David D. McSherry, Irwan YUNUS, Jeffery D. BRESHEARS, Junzhong Li, Minh Tran, Paul R. Kraus, Ramakrishnan Balasubramanian, Richard Staub
Принадлежит: ECOLAB USA INC

Methods of generating performic acid by contacting aqueous oxidizing agent and aqueous formic acid source in liquid phase are disclosed. A system and apparatus for the in situ production of the performic acid chemistries is further disclosed. In particular, a continuous flow reactor is provided to generate performic acid at variable rates. Methods of employing the oxidizing biocide for various disinfection applications are also disclosed.

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Номер записи: 20
05-03-2020 дата публикации

Design of an Ethylene Oligomerization/Trimerization/Tetramerization Reactor

Номер: US20200071243A1
Автор: KREISCHER Bruce E.
Принадлежит:

A process includes periodically or continuously introducing an olefin monomer and periodically or continuously introducing a catalyst system or catalyst system components into a reaction mixture within a reaction system, oligomerizing the olefin monomer within the reaction mixture to form an oligomer product, and periodically or continuously discharging a reaction system effluent comprising the oligomer product from the reaction system. The reaction system includes a total reaction mixture volume and a heat exchanged portion of the reaction system comprising a heat exchanged reaction mixture volume and a total heat exchanged surface area providing indirect contact between the reaction mixture and a heat exchange medium. A ratio of the total heat exchanged surface area to the total reaction mixture volume within the reaction system is in a range from 0.75 into 5 in, and an oligomer product discharge rate from the reaction system is between 1.0 (lb)(hr)(gal) to 6.0 (lb)(hr)(gal). 1. A process comprising:periodically or continuously introducing an olefin monomer and periodically or continuously introducing a catalyst system or catalyst system components into a reaction mixture within a reaction system;oligomerizing the olefin monomer within the reaction mixture to form an oligomer product; andperiodically or continuously discharging a reaction system effluent comprising the oligomer product from the reaction system;wherein the reaction system comprises: a total reaction mixture volume within the reaction system; and a heat exchanged portion of the reaction system comprising a heat exchanged reaction mixture volume and a total heat exchanged surface area providing indirect thermal contact between the reaction mixture and a heat exchange medium;{'sup': −1', '−1', '−1', '−1, 'wherein an oligomer product discharge rate from the reaction system is between 1.5 (lb)(hr)(gal) to 6.0 (lb)(hr)(gal); and'}{'sup': −1', '−1, 'wherein a ratio of the total heat exchanged surface area ...

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Номер записи: 21
29-03-2018 дата публикации

Process

Номер: US20180086637A1
Автор: Julian Stuart Gray
Принадлежит: Johnson Matthey Davy Technologies Ltd

A reactor having a shell comprising: one or more reactor tubes located within the shell, said reactor tube or tubes comprising a plurality of catalyst receptacles containing catalyst; means for providing a heat transfer fluid to the reactor shell such that the heat transfer fluid contacts the tube or tubes; an inlet for providing reactants to the reactor tubes; and an outlet for recovering products from the reactor tubes; wherein the plurality of catalyst receptacles containing catalyst within a tube comprises catalyst receptacles containing catalyst of at least two configurations.

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Номер записи: 22
02-04-2015 дата публикации

PROCESS FOR THE PRODUCTION OF HEXAMETHLENEDIAMINE

Номер: US20150093301A1
Автор: Alini Stefano, Corona Alberto, Crippa Tommaso, Guida Luciano
Принадлежит:

It is described a process for the production of hexamethylenediamine by hydrogenation of adiponitrile, comprising an improved step of regeneration of the catalyst. Also described are an equipment for the production of hexamethylenediamine, and a washing apparatus () for implementing the catalyst regeneration step. 1. An apparatus for the production of hexamethylenediamine , comprising:a vertical tubular reaction vessel having an ejection device positioned inside said vertical tubular reaction vessel for promoting the agitation of the reaction medium;a separation device positioned in a top part of said vertical tubular reaction vessel for enabling the separation of a gas-phase from a liquid-phase in a reaction medium; a pipe connecting said drawing off device to a first tank;', 'a pipe connecting said vertical tubular reaction vessel to a top part of a washing apparatus;', 'a pipe feeding water to a bottom of said washing apparatus;', 'a pipe connecting the top part of said washing apparatus to said first tank;', 'a pipe connecting the bottom of said washing apparatus to a sedimentation tank, the sedimentation tank including a bottom connected to said pipe for feeding a regenerated catalyst;', 'a pipe connecting a bottom of said first tank to a second tank where alkali phase separation occurs;', 'a pipe connected to said second tank extracting hexamethylenediamine-water solution; and pipes connected to said second tank and said sedimentation tank for extracting wastes., 'a drawing off device positioned in the top part of said vertical tubular reaction vessel for enabling the drawing off of the reaction product, said drawing off device including a top part connected through a gas pipe to a gas re-cycling pump for feeding back hydrogen to a bottom of the vertical tubular reaction vessel, said bottom part of the vertical tubular reaction vessel connected to a pipe for feeding adiponitrile, a pipe for feeding regenerated catalyst, a pipe for the feeding aqueous solution ...

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Номер записи: 23
30-03-2017 дата публикации

Polymerization Using a Spiral Heat Exchanger

Номер: US20170088647A1
Автор: Gabor Kiss, Jay L. Reimers, Kevin W. Lawson, Peijun Jiang
Принадлежит: ExxonMobil Chemical Patents Inc

This invention relates to a polymerization process for forming polymer comprising: contacting (typically in a solution or slurry phase), a monomer and a catalyst system in a reaction zone comprising at least one spiral heat exchanger and recovering polymer, wherein the monomer, the catalyst system and the polymer flow through the at least one spiral heat exchanger in a cross-flow direction relative to spirals of the at least one spiral heat exchanger.

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Номер записи: 24
13-04-2017 дата публикации

MULTI-PURPOSE REACTOR AND PROCESS FOR THE PREPARATION OF MODIFIED BITUMEN

Номер: US20170101583A1
Автор: BRAN Roberto, KUMAR Cheluva, RAJ Sachin, SCOTT Daryl
Принадлежит:

A reactor is provided for the preparation of modified bitumen, which reactor comprises a horizontal housing comprising a cylindrical wall and two side walls, wherein a bitumen inlet has been provided at or near one of the side walls of the housing and a bitumen product outlet has been provided at or near the opposite side wall of the housing, wherein a plurality of inlets for the provision of oxygen-containing gas has been provided in the cylindrical wall of the housing between the bitumen inlet and the bitumen product outlet, which multi-purpose reactor is further provided with a mixer arranged inside the housing comprising at least one rotor rotating within at least one stator having a plurality of openings. The reaction is used to prepare modified bitumen by contacting bitumen in the reactor with a modified elevated temperature and pressure. 1. A reactor for the preparation of modified bitumen , which reactor comprises: a horizontal housing comprising a cylindrical wall and two side walls , wherein a bitumen inlet has been provided at or near one of the side walls of the horizontal housing and a bitumen product outlet has been provided at or near the opposite side wall of the horizontal housing , wherein a plurality of inlets for the provision of oxygen-containing gas has been provided in the cylindrical wall of the horizontal housing between the bitumen inlet and the bitumen product outlet; and a mixer arranged inside the horizontal housing comprising at least one rotor rotating within at least one stator having a plurality of openings.2. A reactor for the preparation of modified bitumen as claimed in claim 1 , further comprising at least one inlet for the provision of catalyst and/or polymer and/or additives at or near the bitumen inlet or in the cylindrical wall of the housing.3. A reactor for the preparation of modified bitumen as claimed in claim 1 , further comprising a system for heating at least part of the cylindrical wall of the housing arranged within ...

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Номер записи: 25
03-07-2014 дата публикации

Reactor and method for growing carbon nanotube using the same

Номер: US20140186546A1
Автор: Jia-Ping Wang, Kai-Li Jiang, Peng Liu, Shou-Shan Fan, Yang Wei, Yang Wu
Принадлежит: Hon Hai Precision Industry Co Ltd, TSINGHUA UNIVERSITY

A reactor includes a reactor chamber and a carbon nanotube catalyst composite layer. The reactor chamber has an inlet and an outlet. The carbon nanotube catalyst composite layer rotates in the reactor chamber, wherein the carbon nanotube catalyst composite layer defines a number of apertures, gases in the reactor chamber flow penetrate the carbon nanotube catalyst composite layer through the plurality of apertures.

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Номер записи: 26
26-04-2018 дата публикации

PROCESS FOR THE OXIDATION OF STARCH-BASED MATERIALS

Номер: US20180112012A1
Автор: Vezzani Massimo
Принадлежит: Ambiente E Nutrizione S.R.L.

A process for the oxidation of powder materials containing starch, which comprises the successive steps of mixing a powder material comprising starch with an aqueous solution of hydrogen peroxide (HO) and adding to the mixture thus obtained an aqueous solution of ammonia and reacting it with said mixture; the process may also comprise a further step of drying the aforementioned mixture to obtain a powder material containing oxidized starch; the process may advantageously comprise the steps of:—feeding a continuous flow of powder material containing starch into a first reactor (R) comprising a cylindrical tubular body () and a rotor, arranged in the cylindrical tubular body, comprising a shaft () provided with elements () projecting radially therefrom and rotated at a speed greater than or equal to 50 rpm,—feeding into said reactor also a continuous flow of an aqueous solution of hydrogen peroxide—reacting the powder material containing starch and the hydrogen peroxide;—discharging from a discharge opening () of the first reactor a continuous flow of a wet powder and feeding this continuous flow into a second reactor (R′) comprising a cylindrical tubular body () and a rotor, arranged in the cylindrical tubular body, comprising a shaft () provided with elements () projecting radially therefrom and rotated at a speed greater than or equal to 50 rpm;—feeding into the second reactor (R′) also a continuous flow of an aqueous solution of ammonia,—discharging from a discharge opening () of the second reactor a continuous flow of a wet powder comprising oxidized starch;—drying the wet powder to a moisture content less than or equal to 20% by weight, thereby obtaining a powder material containing oxidized starch. 1. A process for the oxidation of powder materials containing starch , which is carried out in the absence of any metal compounds and which comprises the successive steps of:a) providing a powder material comprising starch;{'sub': 2', '2, 'b) mixing said material ...

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Номер записи: 27
18-04-2019 дата публикации

REACTION CHAMBER FOR A CHEMICAL REACTOR, AND CHEMICAL REACTOR CONSTRUCTED THEREFROM

Номер: US20190111406A1
Автор: Boos Karl-Robert, Buchholz Sigurd, FALSS Sebastian, Mleczko Leslaw
Принадлежит:

A reaction chamber for a chemical reactor comprises a casing () of the reaction chamber, a floor () of the reaction chamber having an opening () located in the floor, an agitator shaft () located in the chamber and having at least one agitator element (), connected thereto, wherein the agitator shaft (), seen in the longitudinal direction, has a beginning () and an end (). In the opening () of the floor () a removable sleeve () is provided, which projects out of the reaction chamber. The sleeve () is arranged in alignment with the axis of rotation of the agitator shaft (). The internal diameter of the sleeve () is greater than the diameter of the agitator shaft () and the agitator shaft (), at the beginning () thereof and/or at the end () thereof, is adapted to absorb reversibly a torque provided by means of a further shaft and/or to transmit a torque to a further shaft. Using such a reaction chamber, it is possible to build up modular chemical reactors having decreased backmixing. 2. The process as claimed in claim 1 , wherein the reaction is carried out at least intermittently with a constant amount of substances introduced into the reactor and discharged from the reactor.3. The process as claimed in claim 1 , wherein in the stirred reactor claim 1 , there are arranged following one another claim 1 , a first reaction chamber and a second reaction chamber and the agitator shaft of the first reaction chamber is connected to the agitator shaft of the second reaction chamber to transmit a torque and furthermore at least one operating state is monitored in the first and/or second reaction chamber claim 1 , at a predetermined deviation of the operating state from a predetermined value of this operating state the feeds opening out into this reaction chamber are closed and the substances originally transported through these feeds are introduced into another reaction chamber.4. The process as claimed in claim 3 , wherein the monitored operating state is the pressure drop ...

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Номер записи: 28
09-04-2020 дата публикации

ETHYLENE-BASED POLYMERS AND PROCESSES TO MAKE THE SAME

Номер: US20200109271A1
Автор: Brown Hayley A., Gillespie David T., Kardos Lori L., Karjala Teresa P., Ortega Jose, POLK Zachary L.
Принадлежит: Dow Global Technologies LLC

A composition comprising an ethylene-based polymer, which comprises the following properties: a) (Mw(abs)/Mw(conv)−2.00)*(100,000 g/mol/Mw(abs))*CDF?IR #191 (MW≤10,000 g/mol)≥0.030; and b) a melt index (I2) from 0.30 to 2.50 g/10 min. 1. A composition comprising an ethylene-based polymer , which comprises the following properties:{'sub': 'IR', 'a) (Mw(abs)/Mw(conv)−2.00)*(100,000 g/mol/Mw(abs))*CDF(MW≤10,000 g/mol)≥0.030; and'}b) a melt index (I2) from 0.30 to 2.50 g/10 min.2. The composition of claim 1 , wherein the ethylene-based polymer has a CDF(at MW≤10 claim 1 ,000 g/mol)≥0.150.3. The composition of claim 1 , wherein the ethylene-based polymer has a CDF(at a MW≥1.2×10g/mol)≥0.020.4. The composition of claim 1 , wherein the ethylene-based polymer has a CDFs (at MW≥750 claim 1 ,000 g/mol)≥0.400.5. The composition of claim 1 , wherein the ethylene-based polymer has Mw(conv)/Mn(conv) from 7.00 to 11.00.6. The composition of claim 1 , wherein the ethylene-based polymer is formed in a reactor configuration comprising at least one tubular reactor.7. The composition of claim 1 , wherein the composition further comprises another polymer different from the ethylene-based polymer.8. The composition of claim 1 , wherein the ethylene-based polymer is a low density polyethylene (LDPE).9. An article comprising at least one component formed from the composition of .10. The article of claim 9 , wherein the article is a film. The present application claims the benefit of U.S. Application No. 62/338,283, filed on May 18, 2016, and incorporated herein by reference.Blown film production lines are typically limited in output by bubble stability. Blending Linear Low Density Polyethylene (LLDPE) with Low Density Polyethylene (LDPE) increases bubble stability, in part, due to the higher melt strength (MS) of the LDPE, and the increase in MS helps provide for an increase in film output. However, high MS resins typically have reduced the optics and toughness of the film. There is a need ...

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Номер записи: 29
04-05-2017 дата публикации

PROCESS FOR THE PREPARATION OF AN ETHYLENE COPOLYMER IN A TUBULAR REACTOR

Номер: US20170121434A1
Автор: Slots Sjors, Van Bodegom Robert, Van Kan Joannes Augustinus Maria
Принадлежит:

The invention relates to a process a system and a high pressure pump for the preparation of a copolymer of ethylene and a di- or higher functional (meth) acrylate in a tubular reactor, comprising the steps of: injecting ethylene at a pressure of 100 MPa to 350 MPa into the reactor from a high pressure compressor and injecting the (meth)acrylate at a pressure of 100 MPa to 350 MPa into the reactor from a high pressure pump, wherein the high pressure pump comprises—a pump suction chamber for receiving a medium to be compressed; —a cylinder for receiving the medium to be compressed from the pump suction chamber; —an outlet for discharging a compressed medium from the cylinder, —a seal fixed to the inner wall of the cylinder at an end of the cylinder distal to the outlet and —a plunger movable in the cylinder by sliding through the seal, wherein a leakage gap is present along the plunger and the leakage gap is fluidly connected to the pump suction chamber. 2. The process according to claim 1 , wherein the (meth)acrylate is cooled before entering the high pressure pump.3. The process according to claim 1 , wherein the meth(acrylate) is fed to the high pressure pump at a temperature of at most 10° C.4. The process according to claim 1 , wherein the seal is made of PTFE.5. The process according to claim 1 , wherein the meth(acrylate) is fed to the high pressure pump from a feed passage provided with a cooling unit supplied with chilled water.6. The process according to claim 1 , wherein the high pressure pump is cooled by a flushing oil cooler claim 1 , wherein the flushing oil cooler is supplied with chilled water.7. The process according to claim 5 , wherein the cooling unit and the flushing oil cooler are supplied with chilled water from a single chilled water unit.8. The process according to claim 1 , wherein the copolymerisation takes place at a peak temperature between 290° C. and 350° C.9. The process according to claim 1 , wherein the (meth)acrylate is applied in ...

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Номер записи: 30
25-08-2022 дата публикации

MULTI-REACTOR SYSTEM AND METHOD FOR PRODUCTION OF POLYETHYLENE AND ETHYLENE CO-POLYMERS

Номер: US20220267481A1
Автор: DOOLEY Kenneth Alan
Принадлежит: CHEVRON PHILLIPS CHEMICAL COMPANY LP

Multi-reactor systems for the production of low-density polyethylene (LDPE) polymers and copolymers, wherein a first reactor product stream has a total mass flow of from about 10% to about 80% of the total mass flow of the second reactor product stream, methods of using the same, and processes of monitoring the same. 1. A method for the production of a low-density polyethylene polymer in a multi-reactor system comprising:adding a first ethylene-containing feed stream to a first polymerization reactor;polymerizing the first ethylene-containing feed stream in the first polymerization reactor in the presence of a first initiator to create a first reactor product stream;transferring the first reactor product stream from the first polymerization reactor to a second polymerization reactor;adding a second ethylene-containing feed stream to the second polymerization reactor;polymerizing the first reactor product stream and the second ethylene-containing feed stream in the presence of a second initiator to produce a second reactor product stream comprising a low-density polyethylene polymer;wherein the first reactor product stream has a total mass flow that is about 10% to about 80% of the total mass flow of the second reactor product stream.2. The method of claim 1 , wherein at least a portion of the second ethylene-containing feed stream is added to the first reactor product stream before it is added to the second polymerization reactor.3. The method of claim 1 , wherein the first polymerization reactor comprises an autoclave reactor and the second polymerization reactor comprises a tubular reactor.4. The method of claim 3 , wherein the first reactor product stream is transferred from the first autoclave reactor to a second tubular reactor at a temperature sufficient to cause initiation of the polymerization reactor in the second tubular reactor.5. The method of claim 3 , wherein the first reactor product stream is transferred from the first autoclave reactor to a second ...

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Номер записи: 31
27-05-2021 дата публикации

Design of an Ethylene Oligomerization/Trimerization/Tetramerization Reactor

Номер: US20210155562A1
Автор: KREISCHER Bruce E.
Принадлежит:

A process includes periodically or continuously introducing an olefin monomer and periodically or continuously introducing a catalyst system or catalyst system components into a reaction mixture within a reaction system, oligomerizing the olefin monomer within the reaction mixture to form an oligomer product, and periodically or continuously discharging a reaction system effluent comprising the oligomer product from the reaction system. The reaction system includes a total reaction mixture volume and a heat exchanged portion of the reaction system comprising a heat exchanged reaction mixture volume and a total heat exchanged surface area providing indirect contact between the reaction mixture and a heat exchange medium. A ratio of the total heat exchanged surface area to the total reaction mixture volume within the reaction system is in a range from 0.75 into 5 in, and an oligomer product discharge rate from the reaction system is between 1.0 (lb)(hr)(gal) to 6.0 (lb)(hr)(gal). 1. A reaction system for oligomerizing an olefin monomer , the reaction system comprising:one or more reaction system inlets configured to periodically or continuously introduce an olefin monomer, a catalyst system or catalyst system components, or any combination thereof to a reaction mixture within the reaction system;one or more reaction system reaction mixture outlets configured to periodically or continuously discharge a reaction system effluent comprising an oligomer product from the reaction system;a total reaction mixture volume within the reaction system; anda heat exchanged portion of the reaction system comprising a heat exchanged reaction mixture volume and a total heat exchanged surface area providing indirect thermal contact between the reaction mixture and a heat exchange medium;wherein an oligomer product discharge rate from the reaction system is between 1.5 lb/hr/gal to 6.0 lb/hr/gal; and{'sup': −1', '−1, 'wherein a ratio of the total heat exchanged surface area to the total ...

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Номер записи: 32
18-05-2017 дата публикации

REACTION CHAMBER FOR A CHEMICAL REACTOR, AND CHEMICAL REACTOR CONSTRUCTED THEREFROM

Номер: US20170136440A1
Автор: Boos Karl-Robert, Buchholz Sigurd, FALSS Sebastian, Mleczko Leslaw
Принадлежит:

A reaction chamber for a chemical reactor comprises a casing () of the reaction chamber, a floor () of the reaction chamber having an opening () located in the floor, an agitator shaft () located in the chamber and having at least one agitator element (), connected thereto, wherein the agitator shaft (), seen in the longitudinal direction, has a beginning () and an end (). In the opening () of the floor () a removable sleeve () is provided, which projects out of the reaction chamber. The sleeve () is arranged in alignment with the axis of rotation of the agitator shaft (). The internal diameter of the sleeve () is greater than the diameter of the agitator shaft () and the agitator shaft (), at the beginning () thereof and/or at the end () thereof, is adapted to absorb reversibly a torque provided by means of a further shaft and/or to transmit a torque to a further shaft. Using such a reaction chamber, it is possible to build up modular chemical reactors having decreased backmixing. 1. A reaction chamber for a chemical reactor , comprising:a casing of the reaction chamber,a floor of the reaction chamber having an opening located in the floor,an agitator shaft located in the chamber and having at least one agitator element, connected thereto, wherein the agitator shaft, seen in the longitudinal direction, has a beginning and an end, whereinin the opening of the floor a removable sleeve is provided, which projects out of the reaction chamber,the sleeve is arranged in alignment with the axis of rotation of the agitator shaft,the internal diameter of the sleeve is greater than the diameter of the agitator shaftand in that the agitator shaft, at the beginning thereof and/or at the end thereof, is adapted to absorb reversibly a torque provided by means of a further shaft and/or to transmit a torque to a further shaft.2. The reaction chamber as claimed in claim 1 , wherein the agitator shaft is conducted out of the reaction chamber through the sleeve in such a manner that ...

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Номер записи: 33
08-09-2022 дата публикации

DEVICE FOR RAPIDLY PREPARING BETA-Si3N4 BY GAS-SOLID REACTION, AND METHOD THEREOF

Номер: US20220280907A1
Автор: Guo Lirong, Han Zhaohui, Li Hang, Liu Jianhua, Tang Zhimeng, Xia Hongying, Xu Lei, ZHANG Libo
Принадлежит:

A device for rapidly preparing β-Si3N4 by gas-solid reaction and a method thereof, and relates to the technical field of recycling and reuse of waste fine silicon powder. The bottom of a stock bin communicates with a first opening and closing passage, a first connection passage, and the top of a first transitional bin; the bottom of the first transitional bin communicates with the first opening and closing passage, a second connection passage, and the top of a reaction bin; the bottom of the reaction bin communicates with a second opening and closing passage, the first connection passage, and the top of a second transitional bin; the bottom of the second transitional bin communicates with the top of a conveying passage through the first opening and closing passage; a material outlet of the conveying bin communicates with the collection bin. 11234561782279331084457568111217911131410. A device for rapidly preparing β-SiNby gas-solid reaction , comprising a stock bin () , a first transitional bin () , a reaction bin () , a second transitional bin () , a conveying bin () , and a collection bin () , wherein the bottom of the stock bin () communicates with a first opening and closing passage () , a first connection passage () , and the top of the first transitional bin () in sequence; the bottom of the first transitional bin () communicates with the first opening and closing passage () , a second connection passage () , and the top of the reaction bin () in sequence; the bottom of the reaction bin () communicates with a second opening and closing passage () , the first connection passage () , and the top of the second transitional bin () in sequence; the bottom of the second transitional bin () communicates with the top of the conveying bin () through the first opening and closing passage (); a material outlet of the conveying bin () communicates with the collection bin (); the first connection passage () is a hollow pipeline and is provided with a pressure gauge () , a ...

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Номер записи: 34
09-05-2019 дата публикации

HIGH-PRESSURE POLYMERIZATION PROCESS OF ETHYLENICALLY UNSATURATED MONOMERS

Номер: US20190135950A1
Автор: Finette Andre-Armand, Gonioukh Andrei, Herrmann Thomas, Littmann Dieter, Wolfram Sven
Принадлежит: BASELL POLYOLEFINE GMBH

A process for polymerizing or copolymerizing ethylenically unsaturated monomers at pressures in the range of from 110 MPa to 500 MPa in a production line comprising a continuously operated polymerization reactor, wherein the process comprises monitoring the surrounding of the production line with respect to an occurrence of a leakage of monomers or of reaction mixture by an IR point detector arrangement of at least three groups of IR point detectors which are capable of detecting hydrocarbons and the groups of IR point detectors are operating according to a voting logic and starting automatically an emergency pressure release program when a group of IR point detectors of the IR point detector arrangement detects the presence of hydrocarbons. 1. A process for polymerizing or copolymerizing one or more ethylenically unsaturated monomers at temperatures from 100° C. to 350° C. and pressures in the range of from 110 MPa to 500 MPa in a continuously operated polymerization reactor ,wherein the polymerization is carried out in a production line in which the monomers are brought to the polymerization pressure by one or more compressors in a sequence of compression stages in which the compressed gas mixture is cooled after each compression stage by a compression stage cooler, the compressed monomers are optionally passed through a pre-heater or a pre-cooler and transferred into the polymerization reactor which is optionally cooled by cooling jackets, a reaction mixture obtained by the polymerization is leaving the reactor through a pressure control valve and optionally cooled by an post reactor cooler, the reaction mixture is separated into polymeric and gaseous components in two or more stages, where the gaseous components separated off in a first stage at an absolute pressure of from 15 MPa to 50 MPa are recycled to the one or more compressors via a high-pressure gas recycle line, and the gaseous components separated off in a second stage at an absolute pressure in the ...

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Номер записи: 35
16-05-2019 дата публикации

PROCESS FOR A CONTINUOUS SYNTHESIS OF ZEOLITIC MATERIALS

Номер: US20190144290A1
Автор: ARNOLD Lena, CLADE Stefanie, DIEHLMANN Uwe, Marx Stefan, Mueller Ulrich
Принадлежит: BASF SE

The present invention relates to a continuous process for preparing a zeolitic material comprising (i) preparing a mixture comprising a source of YO, optionally a source of XO, and a liquid solvent system; (ii) continuously feeding the mixture prepared in (i) into a continuous flow reactor at a liquid hourly space velocity in the range of from 0.3 to 20 hfor a duration of at least 1 h; and (iii) crystallizing the zeolitic material from the mixture in the continuous flow reactor, wherein the mixture is heated to a temperature in the range of from 100 to 300° C.; wherein the volume of the continuous flow reactor is in the range of from 150 cmto 75 m, as well as to zeolitic materials which may be obtained according to the inventive process and to their use. 1. A continuous process for preparing a zeolitic material , comprising:{'sub': 2', '2', '3, 'preparing a mixture comprising a source of YO, optionally a source of XO, and a liquid solvent system;'}{'sup': '−1', '(ii) continuously feeding the mixture prepared in (i) into a continuous flow reactor at a liquid hourly space velocity in the range of from 0.3 to 20 hfor a duration of at least 1 h; and'}(iii) crystallizing the zeolitic material from the mixture in the continuous flow reactor,wherein the mixture is heated to a temperature in the range of from 100 to 300° C.;{'sup': 3', '3, 'wherein the volume of the continuous flow reactor is in the range of from 150 cmto 75 m.'}2. The process of claim 1 , wherein the continuous flow reactor is selected from the group consisting of a tubular reactor claim 1 , a ring reactor claim 1 , and a continuously oscillating reactor.3. The process of claim 1 , wherein the wall of the continuous flow reactor comprises a metallic material.4. The process of claim 1 , wherein the surface of the inner wall of the continuous flow reactor is lined with an organic polymer material.5. The process of claim 1 , wherein in (iii) the mixture is heated under autogenous pressure.6. The process of ...

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Номер записи: 36
01-06-2017 дата публикации

Continuous reaction apparatus and apparatus for producing a toner

Номер: US20170153561A1
Автор: Yuqing Xu
Принадлежит: Mitsubishi Chemical Corp

Provided is a continuous reaction apparatus which can precisely control the path of flow of the liquid reaction mixture in the reaction vessel. Further, provided is a continuous reaction apparatus which can efficiently mix the liquid reaction mixture in the reaction vessel. The continuous reaction apparatus comprises a plurality of mixing vessel units and a plurality of partition units. These units are connected in the state of being alternately stacked on one another. Each mixing vessel unit has an agitating blade disposed in the inner space thereof. The relationship between the inner diameter D 1 of the mixing vessel unit, the height H of the mixing vessel unit, and the outer diameter d 1 of the agitating blade satisfies the formula (1): 10≧(D 1/ H)≧1.5, and the formula (2): 0.99≧(d 1/ D 1 )≧0.7. The agitating blade is a circular disc-type agitating blade.

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Номер записи: 37
22-09-2022 дата публикации

REACTION APPARATUS

Номер: US20220297079A1
Автор: George Michael, Lee Darren, Pickering Stephen, Poliakoff Martyn, Sharabi Medhat
Принадлежит:

An apparatus for carrying out chemical reactions is provided. The apparatus comprises a first reactor/reaction zone for carrying out a first chemical reaction and a second reactor/reaction zone for carrying out a second chemical reaction. Each reactor/reaction zone comprises: a) an inner surface and an outer surface which are spaced apart from each other to define a reaction volume configured such that, in use, a respective chemical reaction takes place in the reaction volume, and wherein the inner surface and outer surface are configured for relative rotation with respect to each other, (b) an inlet for introduction of a reagent to the reaction volume, and (b) an outlet through which a reaction product can leave the reaction volume. The reaction products of the first reactor/reaction zone comprise reagents of the second reactor/reaction zone. 2. An apparatus according to claim 1 , wherein the first and second reactors/reaction zones are provided by first and second reactors respectively claim 1 , wherein each reaction volume comprises a reaction chamber claim 1 , and wherein the outlet of the first reactor is coupled to the inlet of the second reactor claim 1 , optionally via a fluid conduit.3. An apparatus according to claim 2 , wherein first and/or second reactors are configurable such that the speed of relative rotation of the first reactor is the same as or different from the speed of relative rotation of the second reactor; and/or wherein the apparatus is configurable such that a flow rate of fluid from the outlet of the first reactor is equal to the flow rate of fluid into the inlet of the second reactor claim 2 , for example claim 2 , the apparatus comprises at least one pump for pumping fluid through the plurality of reactors at a constant flow rate.4. An apparatus according to claim 1 , wherein the first and second reactors/reaction zones are provided by first and second reaction regions of a single reactor claim 1 , and wherein each reaction volume ...

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Номер записи: 38
07-06-2018 дата публикации

METHOD OF PREPARING RESIN POWDER AND INTEGRATED COAGULATOR FOR THE SAME

Номер: US20180155507A1
Автор: CHOI Jeong Su, HONG Sung Won, JANG Seok Goo, JU Min Cheol, KIM Ho Hoon, Kim In Soo, LEE Hyung Sub, LEE Roo Da, LEE Won Seok, PARK Sang Hoo, SHIN Min Seung, Yoo Keun Hoon
Принадлежит:

Disclosed are a method of preparing a resin powder and an integrated reactor for the same. When a coagulation process is performed using an acidic coagulant in the integrated coagulator for latex coagulation and aging according to the present invention, a remaining acidic coagulant is also removed from a reactor through neutralization, and thus, a resin powder having enhanced moist-heat resistance and thermal stability may be prepared. 1. A method of preparing a resin powder , comprisinga latex coagulation process by input of an organic acid, a neutralization process of a remaining organic acid by input of a neutralization agent, and an aging process for the resin powder,wherein the latex coagulation process, the neutralization process and the aging process are continuously performed in an integrated coagulator for latex coagulation and aging,wherein the latex coagulation process comprises input of some organic acid in a position of the integrated coagulator for latex coagulation and aging, andwherein the neutralization process of the remaining organic acid comprises input of a neutralization agent for neutralizing the remaining organic acid in a downstream position of the position to which the organic acid is inputted.2. The method according to claim 1 , wherein the input of the neutralization agent is performed at the position having a moisture content of the resin powder of 30 to 60% by weight in the integrated coagulator.3. The method according to claim 1 , wherein each of the input of the latex and the input of the organic acid is performed in a section of 0 to 20% the length according to a transfer section toward a transfer direction of a reaction pipe outlet end portion from a reaction pipe inlet end portion of the integrated coagulator.4. The method according to claim 1 , wherein the input of the neutralization agent is performed in a section of 40 to 60% the length toward a transfer section toward transfer direction of a reaction pipe outlet end portion ...

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Номер записи: 39
14-05-2020 дата публикации

Process for preparing an isocyanate by partly adiabatically operated phosgenation of the corresponding amine

Номер: US20200148629A1
Автор: Anke Hielscher, Christian Steffens, Dietmar Wastian, Juergen Spriewald, Thomas Knauf
Принадлежит: Covestro Deutschland AG

The present invention relates to a process for preparing an isocyanate by reacting a primary amine with phosgene, comprising I) providing an amine solution and adjusting its temperature in a heat exchanger, II) providing a phosgene solution and adjusting its temperature in a heat exchanger, III) mixing the amine solution with the phosgene solution in a mixing unit, followed by IV) further conversion in an adiabatically operated reaction zone and the removing of the gas phase formed as a result of the chemical reaction in a separation zone, V) expanding the remaining liquid phase, VI) further conversion of the liquid phase remaining after expansion in an indirectly heated reaction zone and VII) isolating the isocyanate from the reaction solution obtained therein, in which the temperature in the reaction zone and separation zone is adjusted by fixing a target value within a range from 110° C. to 145° C. for the temperature of the reaction mixture from step III) and using the actual temperature of the reaction mixture from step III) measured continuously or at intervals for closed-loop control of the temperature of the solution of the primary amine provided in step I) and/or of the temperature of the solution of phosgene provided in step II) by means of the heat exchangers used to adjust the temperature of each of these solutions.

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Номер записи: 40
22-09-2022 дата публикации

Divisible Experimental Device and Method for Sand Production and Sand Control during Natural Gas Hydrate Exploitation

Номер: US20220299495A1
Автор: CHEN Zhaoyang, Li Gang, LI Xiaosen, WANG Yi, XIA Zhiming, Zhang Yu
Принадлежит: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCES

A divisible device and a method for sand production and sand control experiment for natural gas hydrate exploitation. The experimental device includes a reactor system, a feeding system, a separation and measurement system, a water-bath jacket system, a support and safety system, and a software recording and analyzing system. In the reactor system, the reactor units can be combined in different ways depending on the experimental conditions and purposes. The reactor units include: left/right reactor units, secondary reactor units, central reactor units, and caps. The combination of a left/right reactor unit with a cap gives a hydrate formation reactor without sand control screens. Combining the left/right reactor unit, secondary left/right reactor units and central reactor units with other accessories allows the reactor system to carry out the simulation experiments with either zero, one, or two view zones, and with either one or two wells. 1. A divisible device for a simulation experiment of sand production and sand control in natural gas hydrate exploitation , comprising a reactor system , a feeding system , a separation and measurement system , a water-bath jacket system , a support and safety system , and a software recording and analyzing system; whereinthe feeding system is configured to introduce gas, liquid, and sands into the reactor system to allow formation of natural gas hydrates in the reactor system;the reactor system is disposed in the water-bath jacket system, and the water-bath jacket system is configured to regulate a temperature inside the reactor system for simulating an ambient temperature of a natural gas hydrate reservoir;the support and safety system comprises a base, wherein the water-bath jacket system is vertically or horizontally fixable on the base for simulating the sand production and sand control by sand control screens at various positions in the natural gas hydrate reservoir;the base is provided with a data collecting module, wherein ...

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Номер записи: 41
16-06-2016 дата публикации

IONIC LIQUID REACTOR WITH HEAT EXCHANGER

Номер: US20160168046A1
Автор: Xu Zhanping
Принадлежит:

An ionic liquid reactor and a process for controlling heat generation from an ionic liquid reactor unit. The ionic liquid reactor includes an internal heat exchanger Impellers break the ionic liquid into small droplets to ensure reactions and mix the fluids to ensure reactions and enhance heat exchanger. Baffles may be used to direct the flow of the fluids within the reactor. 1. An ionic liquid reactor comprising:a shell with an inlet for a hydrocarbon stream, an inlet for an ionic liquid catalyst, and an outlet for effluent, the inlet for ionic liquid catalyst and the inlet for the hydrocarbon stream being disposed proximate a first end of the shell, and the outlet for effluent being disposed proximate a second end of the shell;at least one impeller disposed within the shell; and,at least one heat exchanger disposed within the shell.2. The ionic liquid reactor of further comprising:the at least one heat exchanger comprising a plurality of tubes extending away from the first end of the shell towards the second end of the shell.3. The ionic liquid reactor of wherein the tubes from the plurality of tubes have a U-shape.4. The ionic liquid reactor of further comprising:at least one sloped baffle disposed within the shell, the baffle being sloped towards the second end of the reactor.5. The ionic liquid reactor of further comprising:a plurality of sloped baffles disposed within the shell, the baffles being sloped towards the at least one impeller and the second end of the reactor.6. The ionic liquid reactor of further comprising:a plurality of distributors in communication with the inlet for the hydrocarbon stream and configured to distribute the hydrocarbon stream within the shell.7. The ionic liquid reactor of further comprising:a plurality of impellers disposed within the shell.8. The ionic liquid reactor of claim 6 , wherein a high sheer impeller is disposed below at least one distributor.9. The ionic liquid reactor of claim 8 , wherein a high radial mixing impeller ...

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Номер записи: 42
21-06-2018 дата публикации

Process for the Preparation of Intermediates Useful in the Preparation of Non-ionic Contrast Agents

Номер: US20180169607A1
Автор: Bazinet Patrick R., Heggie William, Naber John, Tomas Filipe
Принадлежит: Hovione Scientia Limited

The invention relates to a process for the preparation of one or more intermediate chemical compounds useful in the preparation of non-ionic contrast agents wherein the process is carried out continuously using one or more flow procedures. 1. A process for the preparation of one or more intermediate chemical compounds useful in the preparation of non-ionic contrast agents wherein the process is carried out continuously using one or more flow procedures.2. A process according to claim 1 , wherein the one or more flow procedures comprise the use of one or more continuous flow reactors.3. A process according to or claim 1 , wherein the one or more continuous flow reactors comprises a pipe reactor claim 1 , a plug flow reactor claim 1 , a tube reactor claim 1 , a piston flow reactor or another commercially available continuous flow reactor claim 1 , or a combination of two or more such reactors.4. A process according to claim 1 , or claim 1 , wherein the process comprises a multi-step chemical synthesis comprising two or more sequential chemical reactions claim 1 , each reaction leading to the production of an intermediate chemical compound useful in the preparation of non-ionic contrast agents or wherein at least two intermediate chemical compounds useful in the preparation of non-ionic contrast agents are prepared in sequence.5. A process according to claim 4 , wherein one or more reactions is carried out in a continuous flow reactor.6. A process according to claim 5 , wherein all of the reactions are carried out in the one or more continuous flow reactors.7. A process according to or claim 5 , wherein each reaction is carried out in a separate continuous flow reactor.8. A process according to any preceding claim claim 5 , wherein an intermediate chemical compound resulting from the process is used to prepare a non-ionic contrast agent.9. A process according to any preceding claim claim 5 , wherein the process comprises at least two chemical reaction steps carried out ...

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Номер записи: 43
08-07-2021 дата публикации

CONTINUOUS TUBULAR REACTOR AND METHOD OF OPERATING THE SAME

Номер: US20210205777A1
Автор: Baek Changyeon, Hyun Gahee, JUNG Won Sik, KIM Hyojin, Kim Jin Seong
Принадлежит:

A continuous tubular reactor includes a rotary reaction tube having a reactant inlet and a product outlet, and including a ceramic; a heating device disposed outside the rotary reaction tube; and an angle adjuster adjusting an angle of a rotation axis of the rotary reaction tube. The angle of the rotation axis is 75° or less with respect to a horizontal surface. 1. A continuous tubular reactor , comprising:a rotary reaction tube having a reactant inlet and a product outlet, and including a ceramic;a heating device disposed outside the rotary reaction tube; andan angle adjuster adjusting an angle of a rotation axis of the rotary reaction tube.2. The continuous tubular reactor of claim 1 , wherein the angle of the rotation axis is 75° or less with respect to a horizontal surface.3. The continuous tubular reactor of claim 1 , wherein the rotary reaction tube comprises one or more selected from a group consisting of an oxide-based ceramic claim 1 , a nitride-based ceramic claim 1 , a carbide-based ceramic claim 1 , a fluoride-based ceramic and a boride-based ceramic.4. The continuous tubular reactor of claim 1 , wherein a blade is disposed on an inner wall of the rotary reaction tube.5. The continuous tubular reactor of claim 4 , wherein a ratio (h/r) of a height h of the blade to a radius r of an inner diameter of the rotary reaction tube is in a range of 0.01 or more and 0.5 or less.6. The continuous tubular reactor of claim 4 , wherein the blade is disposed in a direction parallel to a rotation axis of the rotary reaction tube.7. The continuous tubular reactor of claim 4 , wherein the blade is disposed in a direction perpendicular to a rotation axis of the rotary reaction tube.8. The continuous tubular reactor of claim 4 , wherein the blade is disposed in a spiral direction with respect to a rotation axis of the rotary reaction tube.9. The continuous tubular reactor of claim 1 , wherein a plurality of blades are disposed on an inner wall of the rotary reaction tube. ...

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Номер записи: 44
08-07-2021 дата публикации

METHOD FOR MANUFACTURING POLYMER AND FLOW-TYPE REACTION SYSTEM FOR MANUFACTURING POLYMER

Номер: US20210206886A1
Автор: HARADA Kei, Matsumoto Hideki, WADA Kenji
Принадлежит: FUJIFILM Corporation

Provided is a method for manufacturing a polymer by a flow-type reaction, including introducing a liquid A containing an anionic polymerizable monomer and a non-polar solvent, a liquid B containing an anionic polymerization initiator and a non-polar solvent, a liquid C containing a polar solvent, and a polymerization terminator into different flow paths; allowing the liquids to flow in the respective flow paths; allowing the liquid A and the liquid B to join together at a joining portion; allowing a conjoined liquid Mof the liquid A and the liquid B to join with the liquid C at downstream of the joining portion; subjecting the anionic polymerizable monomer to anionic polymerization while a conjoined liquid Mof the conjoined liquid Mand the liquid C is flowing to downstream in a reaction flow path; and allowing a polymerization reaction solution flowing in the reaction flow path to join with the polymerization terminator so that the polymerization reaction is terminated and a polymer is obtained, in which a polarity of a solvent of the liquid Mis made higher than a polarity of a solvent of the liquid M. Also provided is a flow-type reaction system suited for performing the manufacturing method. 1. A method for manufacturing a polymer in which anionic polymerization reaction is performed by a flow-type reaction , comprising:introducing a liquid A containing an anionic polymerizable monomer and a non-polar solvent, a liquid B containing an anionic polymerization initiator and a non-polar solvent, a liquid C containing a polar solvent, and a polymerization terminator into different flow paths;allowing the liquids to flow in the respective flow paths;allowing the liquid A and the liquid B to join together at a joining portion;{'sup': 'AB', 'allowing a conjoined liquid Mof the liquid A and the liquid B to join with the liquid C at downstream of the joining portion;'}{'sup': ABC', 'AB, 'subjecting the anionic polymerizable monomer to anionic polymerization while a ...

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Номер записи: 45
14-07-2016 дата публикации

Method and Device for Removing Contaminants Arising During the Production of Aliphatic Nitrate Esters

Номер: US20160200663A1
Автор: GEBAUER Jürgen, Handel Mirko, HERMANN Heinrich, Pöhlmann Jürgen
Принадлежит:

The invention relates to a method and to a device for removing contaminants arising during the production of aliphatic or alicyclic nitric acid esters, in particular for removing contaminants from nitrated crude nitric acid esters, which nitrated crude nitric acid esters arise during the nitration of monovalent or multivalent aliphatic or alicyclic alcohols capable of nitration, after the separation of the final nitrating acid, and to a production system for nitrating monovalent or multivalent aliphatic alcohols capable of nitration with subsequent purification of the nitrated nitric acid esters. 115-. (canceled)16. A process for removing impurities obtained in the preparation of aliphatic or cycloaliphatic nitric esters ,wherein the process comprises removing impurities from crude nitric esters obtained in the nitration of nitratable monohydric or polyhydric aliphatic or cycloaliphatic alcohols, after removal of the residual nitrating acid, by treatment with at least one washing medium,wherein the process comprises the following process steps:(a) the crude nitric esters are firstly brought into contact with a washing medium, wherein the crude nitric esters and the washing medium are dispersed in one another in such a way that an emulsion results; and then(b) the resulting emulsion is subsequently fed into a tube reactor, which is equipped with mixing elements for introducing additional mixing energy, so that the impurities initially present in the crude nitric esters are at least partly removed during passage of the emulsion through the tube reactor, wherein the impurities initially present in the crude nitric esters are at least partly transferred into the washing medium and are neutralized thereby during passage of the emulsion through the tube reactor.17. The process as claimed in claim 16 ,wherein the nitric esters to be purified are selected from the group consisting of:(i) nitric esters of aliphatic or cycloaliphatic monoalcohols;(ii) nitric esters of ...

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Номер записи: 46
18-06-2020 дата публикации

Process for the preparation of styrenic polymers having an improved color stability

Номер: US20200190243A1
Автор: Bart VAN-DEN-BOSSCHE, Christof CAMERLINCK, Konrad Knoll, Michiel VERSWYVEL, Norbert Niessner, Rainer Moors
Принадлежит: Ineos Sryrolution Group GmbH, INEOS STYROLUTION GROUP GMBH

Process for the preparation of styrenic polymers having an improved color stability by anionic polymerization wherein the obtained terminated polymer solution is fed to a dispersing device to which water is added, fed to a buffer vessel and then is impregnated in a static mixer by addition of further water, carbon dioxide and one or more stabilizers.

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Номер записи: 47
26-07-2018 дата публикации

DELAYED COKING PROCESS WITH PRE-CRACKING REACTOR

Номер: US20180208853A1
Автор: Bhattacharyya Debasis, Das Satyen Kumar, KOTTAKUNA Arjun Kumar, MAZUMDAR Sanjiv Kumar, PRADEEP Ponoly Ramachandran, Prasad Terapalli Hari Venkata Devi, RAMAKUMAR Sankara Sri Venkata, Sau Madhusudan
Принадлежит:

The present invention relates to delayed coking of heavy petroleum residue producing petroleum coke and lighter hydrocarbon products. The invented process utilize a pre-cracking reactor and a reactor furnace for mild thermal cracking of the feedstock and an intermediate separator, before being subjected to higher severity thermal cracking treatment in a coker furnace and a coking drums, resulting in reduction in overall coke yield. 1. A method of reducing overall coke yield said method comprising the steps of:{'b': 1', '20', '40', '59', '2', '21', '41', '60', '3', '22', '42', '61, '(a) heating a hydrocarbon feedstock [, , , ] in a reactor furnace [, , , ] to obtain hot feed [, , , ];'}{'b': 3', '22', '42', '61', '4', '23', '24', '43', '62', '5', '25', '44', '63, '(b) introducing the hot feed [, , , ] of step (a) in a pre-cracking reactor [, , , , ] wherein it undergoes mild thermal cracking reactions to obtain an outlet product material stream [, , , ];'}{'b': 5', '25', '44', '63', '69', '64', '6', '26', '45', '7', '27', '46', '8', '28', '47', '7', '27', '46', '13', '33', '53, '(c) passing the outlet product material stream [, , , ] of step (b) either directly to a main fractionator [] to obtain heavy bottom fraction [] or an intermediate separator [, , ] to split outlet product material stream into top fraction [, , ] and bottom product [, , ] and transferring the top fraction [, , ] to a main fractionator [, , ];'}{'b': 64', '8', '28', '47', '9', '29', '49', '65', '10', '30', '50', '66, '(d) heating the heavy bottom fraction [] or the heavy bottom [, , ] of step (c) in a coker furnace [, , , ] to obtain hot hydrocarbon stream [, , , ];'}{'b': 10', '30', '50', '66', '11', '31', '51', '67', '12', '32', '52', '68, '(e) transferring the hot hydrocarbon stream [, , , ] of step (d) to preheated coke drums [, , , ] where it undergoes severe thermal cracking reactions to obtain product vapors [, , , ]; and'}{'b': 12', '32', '52', '68', '13', '33', '53', '69, '(f) passing ...

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Номер записи: 48
04-07-2019 дата публикации

Reactor Systems

Номер: US20190203166A1
Автор: Cole Brady, Donovan Cindy L., Jones Todd, Knight Cameron, Kubera Paul
Принадлежит: ABEC, Inc.

This disclosure relates to equipment utilized to manufacture chemical agents, particularly biopharmaceuticals. In some embodiments, reactor systems comprising a mobile carriage assembly; a disposable reaction container removably attached to the carriage assembly; and, a carriage holder into which the mobile carriage assembly may be removably inserted are provided. 119-. (canceled)20. A reactor system comprising a mobile carriage assembly and a mobile carriage holder , wherein: an implement at least one wheel or track for fixably attaching the mobile carriage assembly to the holder; and,', 'a disposable reaction container reversibly attached thereto and comprising a sterile, sealable interior chamber; and,, 'the mobile carriage assembly comprisesthe mobile carriage holder comprises a receiving implement for receiving the mobile carriage assembly, an interior, and a door; the interior of the holder maintains the desire geometry of the disposable reaction container; and,', 'the door of the holder contains the disposable reaction container in the interior of the holder., 'wherein21. The reactor system of wherein the mobile carriage holder comprises a heat transfer jacket.221. The reactor system of claim wherein the mobile carriage assembly is fixably attached to the mobile carriage holder.23. The reactor system of wherein the mobile carriage holder comprises a heat transfer jacket.241. The reactor system of claim wherein the mobile carriage assembly is reversibly attached to the mobile carriage holder.25. The reactor system of wherein the mobile carriage holder comprises a heat transfer jacket.261. The reactor system of claim wherein the mobile carriage assembly is fixably and reversibly attached to the mobile carriage holder.27. The reactor system of wherein the mobile carriage holder comprises a heat transfer jacket.281. The reactor system of claim further comprising an impellar positioned within the sterile claim 26 , sealable interior chamber of the disposable ...

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Номер записи: 49
16-10-2014 дата публикации

Polyolefin production with different diluents in multiple polymerization reactors

Номер: US20140309382A1
Автор: Catherine M. Gill, Elizabeth Ann Benham, Joel A. Mutchler, Maruti Bhandarkar, Rebecca A. Gonzales, Scott E. Kufeld, Thanh T. Nguyen, Timothy O. Odi
Принадлежит: Chevron Phillips Chemical Co LP

A system and method for producing polyolefin, including a polyolefin reactor system having: a first reactor to produce a first reactor discharge stream having a first polyolefin and a first diluent; and a second reactor to receive at least a portion of the first reactor discharge stream and to produce a second reactor discharge stream having a second polyolefin and a second diluent, wherein the second diluent is different than the first diluent.

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Номер записи: 50
02-07-2020 дата публикации

PROCESS FOR PRODUCING ORGANIC COMPOUND

Номер: US20200207717A1
Автор: MACHIDA Koji, NISHIYAMA Akira, Yasukouchi Hiroaki
Принадлежит: KANEKA CORPORATION

A process for producing an organic compound using a flow reactor for a first reaction in which a raw material liquid A and a raw material liquid B are mixed, and reacted in a reactor unit, and a flow reactor for a second reaction in which a first reaction solution discharged from the flow reactor for the first reaction and a raw material liquid C are mixed, and reacted in a reactor unit, wherein the raw material liquid A is a solution in which triphosgene and/or diphosgene is dissolved, wherein the raw material liquid B is a nitrogen-containing organic compound or a solution thereof, wherein the raw material liquid C is a reaction substrate having a functional group capable of reacting with phosgene, or a solution containing the reaction substrate, and wherein a product of the first reaction is phosgene. 1. A process for producing an organic compound using an apparatus comprising:a first flow reactor for a first reaction in which a raw material liquid A and a raw material liquid B are introduced from separate feeding channels, mixed in a first mixing unit, and then reacted in a first reactor unit, anda second flow reactor for a second reaction in which a first reaction solution discharged from the first flow reactor for the first reaction and a raw material liquid C are introduced from separate feeding channels, mixed in a second mixing unit, and then reacted in a second reactor unit,wherein the raw material liquid A is a solution in which triphosgene and/or diphosgene is dissolved,wherein the raw material liquid B is a nitrogen-containing organic compound not including an amino group, an amino group comprising one substituent on N, an amido group, an amido group comprising one substituent on N, a —C(═O )NH2, and a —OC(═O)NH2 comprising one substituent on N, or a solution of the nitrogen-containing organic compound,wherein the raw material liquid C is a reaction substrate having at least one functional group capable of reacting with phosgene, the functional group ...

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Номер записи: 51
18-08-2016 дата публикации

Production system for vapor-grown carbon nanofibers

Номер: US20160236937A1
Автор: Chun-Shan Wang, Teng-Hui WANG
Принадлежит: YONGYU APPLIED Tech MATERIAL CO Ltd, Yonyu Applied Technology Material Co Ltd

In a production system for vapor-grown carbon nanofibers includes a static mixer and a micro mist nozzle for preventing un-uniform input material from forming impurities, an anti-adhering coating covering an inner wall of a vertical tubular reactor for preventing a catalyst, raw material and carbon fibers from adhering to the inner wall of the vertical tubular reactor, and a sedimentation device into which a dispersant and water are inputted to separate produced carbon fiber compositions from particulate impurities in water.

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Номер записи: 52
06-11-2014 дата публикации

Device for inducing nucleation

Номер: US20140328731A1
Автор: Craig James CALLAHAN, Xiongwei Ni
Принадлежит: Heriot Watt University

Described is a device for inducing crystal nucleation in a crystalliser. The device comprises a vessel for fluid and a surface abrader, wherein the surface abrader is configured to abrade a surface within the vessel to induce crystal nucleation. The friction of the abrader against the surface within the vessel creates nano-sized particulates which induce crystal nucleation. Crystal growth can then take place in the crystalliser. Also described is a crystallisation apparatus comprising the device and a crystallisation process using the device or similar. The device is significantly cheaper and more reliable than known ultrasound devices and facilitates the separation of crystal nucleation and crystal growth. The device also enables the avoidance of the use of seeding as a source of secondary nucleation.

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Номер записи: 53
25-08-2016 дата публикации

Reactor Systems

Номер: US20160244707A1
Автор: Cole Brady, Donovan Cindy L., Jones Todd, Knight Cameron, Kubera Paul
Принадлежит: ABEC, Inc.

This disclosure relates to equipment utilized to manufacture chemical agents, particularly biopharmaceuticals. In some embodiments, reactor systems comprising a mobile carriage assembly; a disposable reaction container removably attached to the carriage assembly; and, a carriage holder into which the mobile carriage assembly may be removably inserted are provided. 119-. (canceled)20. A method for carrying out a reaction , the method comprising combining the components of a reaction in a reaction vessel comprising: i) a receiving implement comprising at least one wheel or track for receiving the mobile carriage assembly; and,', 'ii) a door for securing the mobile carriage assembly within the interior of the holder following insertion of the mobile carriage assembly into the holder;, 'a) a mobile carriage assembly holder comprising an interior into which a mobile carriage assembly may be removably inserted, the holder comprising i) at least one primary mobility implement comprising at least one wheel or track for moving the mobile carriage assembly prior to insertion of the mobile carriage assembly into the holder;', 1) the secondary mobility implements are not in contact with the ground prior to or following insertion of the mobile carriage assembly into the holder;', '2) at least one secondary mobility implement is proximal to the receiving implement and at least one secondary mobility implement is distal from the receiving implement prior to insertion of the mobile carriage assembly into the holder;', '3) the secondary mobility implements provide for insertion of the mobile carriage assembly into the holder, and removal of the mobile carriage assembly from the holder, using the receiving implement of the holder; and,, 'ii) secondary mobility implements, each secondary mobility element comprising at least one wheel or track, wherein, 'iii) a shaft and impellar assembly; and,), 'b) a mobile carriage assembly comprising 1) comprises an interior chamber in which ...

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Номер записи: 54
01-09-2016 дата публикации

APPARATUS FOR MIXING BASED ON OSCILLATORY FLOW REACTORS PROVIDED WITH SMOOTH PERIODIC CONSTRICTIONS

Номер: US20160250615A1
Автор: AZEVEDO FERREIRA Antonio Manuel, COUTO-TEIXEIRA Jose Antonio, MATINS DE OLIVEIRA SOARES VICENTE Antonio Augusto, NOGUEIRA DA ROCHA Fernando Alberto
Принадлежит:

The present application relates to an improved apparatus for mixing intensification in multiphase systems, which can be operating in continuous or batch mode. The apparatus is based on oscillatory flow mixing (OFM) and comprises a novel oscillatory flow reactor (OFR) provided with Smooth Periodic Constrictions (SPCs). The apparatus can be fully thermostatized and it is based on a modular system, in order to achieve most of the industrial application. The new OFR is suitable for multiphase applications such as screening reactions, bioprocess, gas-liquid absorption, liquid-liquid extraction, precipitation and crystallization. Regarding its size and geometry and the ability to operate at low flow rates, reagent requirements and waste are significantly reduced, as well as the operating costs, compared to the common reactor, such as continuous stirred tank reactor (CSTR) and the “conventional” OFR. The disclosed apparatus fulfil some of the gaps observed in the “conventional” OFR as well as in meso-OFR known. Excellent heat and mass transfer is obtained. The scale-up is predictable. 1. An apparatus for mixing intensification comprising:a reactor vessel provided with Smooth Periodic Constrictions (SPCs) wherein the distance (L) between consecutive convergent sections is 3 to 4.5 times an inner diameter (D) of a straight section of the SPCs and an open area (α) is between 17 and 36%;a mixing chamber;oscillation means to oscillate the system within the reactor vessel.2. The apparatus according to claim 1 , wherein said reactor vessel is provided with a plurality of inlets or outlets.3. The apparatus according to claim 1 , wherein said reactor vessel is in the form of a single piece reactor or a plurality of single piece reactors claim 1 , displaced in parallel claim 1 , series or both.4. The apparatus according to claim 1 , wherein said reactor vessel is in the form of single plate reactor or a plurality of plate reactors claim 1 , displaced in parallel claim 1 , by stack ...

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Номер записи: 55
23-07-2020 дата публикации

Method for directly producing ethanol from syngas

Номер: US20200231523A1
Автор: Fuli WEN, Hongchao LIU, Shiping Liu, Wenliang Zhu, Xiangang MA, Yong Liu, Youming NI, Zhongmin Liu
Принадлежит: Dalian Institute of Chemical Physics of CAS

A method for directly producing ethanol from syngas, carried out in three reaction zones, including: feeding a raw material containing syngas and dimethyl ether into a first reaction zone to contact with a solid acid catalyst, reacting; allowing the effluent from the first reaction zone to enter a second reaction zone to contact with a metal catalyst and react; separating the effluent from the second reaction zone to obtain product ethanol and by-product methanol; allowing by-product methanol to enter a third reaction zone to perform a dehydration reaction to obtain dimethyl ether, and allowing the obtained dimethyl ether to enter the first reaction zone to recycle the reaction. This provides a novel method for directly converting syngas to ethanol and an ethanol product can be directly produced by using syngas as a raw material.

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Номер записи: 56
01-09-2016 дата публикации

CAVITATION REACTOR

Номер: US20160252186A1
Автор: Mitton Michael Jon
Принадлежит:

A cavitation reactor having a pulse valve for receiving an input fluid flow and generating a pulsed output flow that is provided to the input of a resonance chamber, such as a tube. The pulse valve uses a shaft with a number of regularly spaced lands to form fluid conduits between an input port and the output port connected to the resonance tube to cause fluid communication between the input and output ports to be regularly opened and closed, thereby producing a pulsed output that drives the formation of resonance waves in the resonance chamber. The shaft is rotated at a suitable frequency to produce cavitation bubbles that collapse in the resonance chamber without damaging the valve shaft. 1. A cavitation reactor comprising: (i) a housing having a cylindrical bore extending laterally along the axis of the bore, the cylindrical bore being defined by an inner cylindrical surface of the housing, the housing having an input port and a pulse valve output port, each port providing a separate fluid communication path between an outer surface of the housing and the bore; and', '(ii) a valve shaft coaxially positioned in the bore and having a central portion and at least two lands extending radially therefrom, each land having a surface and having an end proximate to the cylindrical inner surface of the housing, the central portion having a surface, the valve shaft being rotatable inside the bore around the bore axis,, '(a) a pulse valve comprisingwherein the lands extend laterally, along the bore axis, so that the surfaces of the valve shaft, in combination with the housing, define one or more fluid conduits, each fluid conduit having a bottom portion defined by the surfaces of two adjacent lands and the central portion therebetween,wherein the valve shaft is continuously rotatable so that each fluid conduit repeatedly moves between a position in which the input port and the pulse valve output port are not in fluid communication with each other, so that the fluid ...

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Номер записи: 57
30-08-2018 дата публикации

A REACTOR-CONDENSER FOR THE SYNTHESIS OF UREA

Номер: US20180243723A1
Автор: Rugnone Luca
Принадлежит: Casale SA

A combined reactor and condenser for the synthesis of urea from ammonia and carbon dioxide, including a condenser section coupled to a reaction section, comprising inputs directed to said condenser section for a gaseous stream comprising ammonia and carbon dioxide and for a solution containing ammonium carbamate and liquid ammonia, and wherein the effluent of the condenser section is sent to the reaction section; the reaction section comprises a plurality of compartments and a plurality of mixers, at least one inside each of said compartments. 1. A combined reactor and condenser for the synthesis of urea from ammonia and carbon dioxide , including a condenser section coupled to a reaction section , comprising at least one input directed to said condenser section for a gaseous stream comprising ammonia and carbon dioxide , and for a solution containing liquid ammonia and/or ammonium carbamate , and wherein the effluent of the condenser section is sent to the reaction section , characterized in that:the reaction section comprises a plurality of compartments;the reaction section comprises a plurality of mixers, including at least one mixer inside each of said compartments.2. The reactor according to claim 1 , wherein said mixers are rotating impellers.3. The reactor according to claim 2 , said impellers being mounted on a common single shaft passing through the reaction section.4. The reactor according to claim 2 , wherein one of said impellers is suitable to impart an axial thrust to said effluent of the condenser section claim 2 , acting as a drive impeller of the flow through the reaction section.5. The reactor according to claim 4 , wherein said drive impeller is also mounted on said common shaft.6. The reactor according to claim 1 , comprising an ejector acting as a phase mixer of said gaseous stream comprising ammonia and carbon dioxide and of said solution containing ammonium carbamate claim 1 , before entering the condensation section.7. The reactor according ...

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Номер записи: 58
31-08-2017 дата публикации

Solid powder reactor

Номер: US20170246612A1
Автор: LI JUN, TANG Jinhua, WANG HONGYU, Yan Mingchen
Принадлежит:

A solid powder reactor includes: a reaction kettle, including a hollow kettle body and covers; an agitating device, including an agitating shaft and blades, wherein the agitating shaft is arranged in the kettle body and the blades are fixed on the agitating shaft; and a heating system, including a kettle body heater and an agitating heater, wherein the kettle body heater is fixed on the kettle body and the agitating heater is arranged on the agitating device. While the agitating device and the kettle body are driven to agitate, by a driving device fixedly arranged outside the reaction kettle, the heating system heats materials in the reactor. The present invention is applicable to solid reaction of solid powders. The materials containing attached water or not are both feasible, and the materials can directly enter the reactor and react. Compared with conventional solid reactors, the present invention increases the production efficiency. 1. A solid powder reactor , comprising:a reaction kettle, comprising a kettle body which is hollow and two covers;an agitating device, comprising an agitating shaft and blades, wherein: the agitating shaft is arranged in the hollow kettle body; and the blades are fixed on the agitating shaft; anda heating system, comprising a kettle body heater and an agitating heater, wherein: the kettle body heater is fixed on the hollow kettle body; and the agitating heater is arranged on the agitating device;wherein: while the agitating device and the hollow kettle body are driven to agitate by a driving device fixedly arranged outside the reaction kettle, the heating system heats materials inside the reactor.2. The solid powder reactor claim 1 , as recited in claim 1 , wherein the agitating shaft and the blades are hollow claim 1 , for introducing a heating medium thereinto.3. The solid powder reactor claim 2 , as recited in claim 2 , wherein: the blades are uniformly arranged on two sides of the agitating shaft at an angle of 40°-50° to an ...

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Номер записи: 59
15-08-2019 дата публикации

DEVICE FOR THE THERMAL TREATMENT OF VISCOUS MATERIAL, IN PARTICULAR FOR THE THERMAL SEPARATION OF MATERIAL COMPONENTS CONTAINED IN VISCOUS MATERIAL

Номер: US20190247823A1
Автор: Becker Nils, NAEF Rainer, Schuster Johann
Принадлежит:

A housing having a heatable housing jacket, which surrounds a treatment chamber and forms a rotationally symmetrical treatment surface extending in the axial direction, and a drivable rotor, arranged in the treatment chamber and extending coaxially, for producing a material film on the treatment surface. The rotor comprises a hollow shaft, arranged in a manner distributed over the circumference of which are spreading elements. The hollow shaft surrounds a condensation space, in which a condenser is arranged. At least some of the spreading elements are configured as transport elements, which impart a transporting component to the material in the direction from the material inlet to the material outlet. Some of the spreading elements are configured as transport elements and some as distributing elements, which project from the hollow shaft and which comprise teeth, the shearing edge of which encloses an angle of less than 45° relative to the axial direction. 1. A device for the thermal treatment of viscous material , in particular for the thermal separation of material components contained in viscous material , comprisinga housing having a heatable housing jacket, which surrounds a treatment chamber and forms a rotationally symmetrical treatment surface extending in the axial direction,a material inlet, which is arranged in an inlet region, of the housing, for introducing the material to be treated into the treatment chamber, a material outlet, which is arranged in an outlet region, of the housing, for discharging the material out of the treatment chamber, anda drivable rotor, which is arranged in the treatment chamber and extends coaxially, for producing a material film on the treatment surface, wherein the rotor comprises a hollow shaft, arranged in a manner distributed over the circumference of which are spreading elements, the radially outer end of which is spaced apart from the treatment surface,wherein the hollow shaft surrounds a condensation space, in which a ...

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Номер записи: 60
15-09-2016 дата публикации

Installation and method for producing fatty acid esters usable as fuel

Номер: US20160264911A1
Автор: Maria Úrsula CHORNET SERRANO, Pau AZKARATE CAPELL
Принадлежит: Supercritical Ideas Sl

Installation and method for producing fatty acid esters usable as fuel for which the installation includes a tank ( 10 ) containing oils and/or fats to be treated, a tank ( 11 ) containing light alcohol, pumps ( 3 ) and ( 4 ) feeding the materials to a tubular reaction vessel ( 30 ) having a winding configuration provided with a heater for internally maintaining a supercritical temperature with respect to the alcohol used and a pressure provided by the pumps, suitable for producing esterification and transesterification reactions, without the presence of catalysts of the oils and/or fats and alcohol, a heat exchanger ( 8 ) for heating the affluents and cooling the reaction effluents and a reaction effluent depressurization tank ( 21 ). The installation further has a stirrer ( 22, 23, 28 ) for stirring the reaction product at the reaction temperature and pressure in one or more segments of the tubular vessel ( 30 ) covering a sector of the reactor before its end area for exit towards the depressurization tank ( 21 ).

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Номер записи: 61
21-09-2017 дата публикации

METHOD FOR PRODUCING WATER-ABSORBENT RESIN

Номер: US20170267793A1
Автор: Fujino Shin-ichi, HONDA Koji, Imura Motohiro, KADONAGA Kenji, KATADA Yoshiki, Nogi Kozo, WAKABAYASHI Ryota
Принадлежит:

[Object] To provide a method for stably producing a water-absorbent resin in powder form or particle form, which has excellent physical properties such as water absorption performance and the like, without any production trouble.

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Номер записи: 62
04-11-2021 дата публикации

SYSTEM FOR IONIC LIQUID CATALYST REGENERATION

Номер: US20210339236A1
Автор: Leeton Eric, Mudrock Rebecca, Schrad Gregory J.
Принадлежит:

Systems, reactors, and processes for regenerating ionic liquid using catalyst. A plurality of tubular reactors are provided having a first end and a second end and catalyst particles disposed in the tubular reactor between the first end and the second end. A line supplies separated ionic liquid catalyst to the first end of the tubular reactor. Hydrogen is also supplied. Regenerated ionic liquid catalyst is recovered from the second end of the tubular reactor. The inner surface of the tubular reactor is preferably non-corrosive or non-reactive. A fluoropolymer lining may be used. The tubular reactors are modular, and may be changed out with the catalyst inside when the catalyst are to be replaced.

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Номер записи: 63
11-11-2021 дата публикации

CONTINUOUS FLOW PROCESS FOR PREPARING CONDUCTING POLYMERS

Номер: US20210346860A1
Автор: BRUTON Eric, Flack Matthew, HORNUNG Christian, KINLEN Patrick, KOHL Thomas, TSANAKTSIDIS John, ZWEIG Andrew
Принадлежит:

The present disclosure relates to a continuous flow process for preparing conducting polymers, for example polyaniline. The continuous flow process can provide a controlled synthesis of a conducting polymer from an emulsion comprising a polymerizable organic monomer and a free radical initiator in flow within a temperature controlled continuous flow reactor comprising at least one mixing element. The present disclosure also relates to the conducting polymers prepared by the continuous flow process. 1. A process , comprising:introducing a polymerizable organic monomer into a first continuous flow mixer;introducing, separately from the polymerizable organic monomer, a protonic acid into the first continuous flow mixer to form an organic soluble monomer salt;forming a reactant mixture by introducing the organic soluble monomer salt and an aqueous stream comprising a free radical initiator into a second continuous flow mixer that is in series with the first continuous flow mixer; andintroducing the reactant mixture into a tubular reactor to form a conducting polymer or salt thereof.2. The process of claim 1 , wherein the first continuous flow mixer is a continuous flow reactor comprising a mixing element disposed therein.3. The process of claim 2 , wherein the mixing element is a static mixing element.4. The process of claim 1 , wherein the second continuous flow mixer is a continuous flow reactor comprising a mixing element disposed therein.5. The process of claim 4 , wherein the mixing element is a static mixing element.6. The process of claim 1 , wherein the tubular reactor comprises a static mixing element disposed therein.7. The process of claim 1 , wherein the polymerizable organic monomer is introduced into the first continuous flow mixer as a neat liquid or with an organic solvent.8. The process of claim 1 , wherein the reactant mixture is an emulsion.9. The process of claim 1 , wherein the tubular reactor is a continuous flow tubular reactor comprising one or ...

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Номер записи: 64
29-08-2019 дата публикации

PROCESS FOR PREPARING POLYMERS

Номер: US20190263967A1
Автор: AKBARI Shahram, Schwier Chris, Sutton James P., Uzunpinar Cihan, Zabcik John M.
Принадлежит: Ascend Performance Materials Operations LLC

The present disclosure relates to a process for preparing polymers using a plug flow reactor. The process includes providing an aqueous monomer solution comprising amide monomers; evaporating the aqueous monomer solution to form a concentrated monomer solution; and polymerizing the concentrated monomer solution in a plug flow reactor comprising a shell side and a tube side to form a first process fluid comprising polymers. The concentrated monomer solution flows on the shell side from the inlet to the outlet. 1. A process for preparing polyamides , the process comprising:providing an aqueous monomer solution comprising amide monomers;evaporating the aqueous monomer solution to form a concentrated monomer solution; andpolymerizing the concentrated monomer solution in a plug flow reactor comprising a shell side and a tube side to form a first process fluid comprising polyamides, wherein the shell side comprises an inlet and an outlet,wherein the concentrated monomer solution flows on the shell side from the inlet to the outlet.2. The process of claim 1 , wherein the tube side comprises a plurality of U-tubes each including an inlet and an outlet for conveying a heating fluid therethrough claim 1 , and wherein the tube side has a heat transfer area claim 1 , and wherein the heating fluid has a specific enthalpy claim 1 , H value at atmospheric pressure claim 1 , less than 2 claim 1 ,900 kJ/kg.3. The process of claim 2 , wherein a ratio of the heat transfer area (ft) to a total volume (ft) of the concentrated monomer solution ranges from 3:1 to 30:1.4. The process of claim 2 , wherein a ratio of the heat transfer area (ft) to a total volume (ft) of heat transfer fluid ranges from 5:1 to 200:1.5. The process of claim 2 , wherein a skin temperature of the plug flow reactor is less than 290° C.6. The process of claim 1 , wherein the process has a heat flux rate less than 11400 BTU/hr-ft7. The process of claim 1 , wherein a residence time distribution varies by +/−8% claim ...

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Номер записи: 65
27-09-2018 дата публикации

COOLING BETWEEN MULTIPLE POLYOLEFIN POLYMERIZATION REACTORS

Номер: US20180272309A1
Автор: BENHAM Elizabeth A., Bhandarkar Maruti, Gill Catherine M., GONZALES Rebecca A., Kufeld Scott E., MUTCHLER Joel A., Nguyen Thanh T., Odi Timothy O.
Принадлежит: CHEVRON PHILLIPS CHEMICAL COMPANY LP

A system and method for a first reactor to produce a transfer slurry having a first polyolefin polymerized in the first reactor, a heat-removal zone to remove heat from the transfer slurry, and a second reactor to receive the transfer slurry cooled by the heat-removal zone, the second reactor to produce a product slurry having a product polyolefin which includes the first polyolefin and a second polyolefin polymerized in the second reactor. 114.-. (canceled)15. A method of operating a polyolefin manufacturing system , comprising:producing a first polyolefin in a first polymerization reactor;discharging from the first polymerization reactor a transfer slurry comprising the first polyolefin;cooling the transfer slurry to produce a second reactor transfer feed slurry;introducing the second reactor transfer feed slurry into a second polymerization reactor;producing a second polyolefin in the second polymerization reactor; anddischarging from the second polymerization reactor a second reactor discharge slurry comprising the first polyolefin and the second polyolefin,wherein the transfer slurry and the second reactor transfer feed slurry have a temperature difference of at least 3° F.,wherein the transfer slurry is not recycled into the transfer slurry or the first polymerization reactor, andwherein the second reactor discharge slurry is not recycled into the transfer slurry, the second reactor transfer feed, the first polymerization reactor, or the second polymerization reactor.16. The method of claim 15 , wherein cooling the transfer slurry comprises receiving a cooling medium to cool the transfer slurry.17. The method of claim 15 , comprising receiving a cooling medium at a heat exchanger claim 15 , and wherein cooling the transfer slurry comprises subjecting the transfer slurry to the heat exchanger.18. The method of claim 15 , comprising routing the transfer slurry through a first portion of a transfer line to a heat exchanger claim 15 , and wherein cooling the ...

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Номер записи: 66
12-09-2019 дата публикации

METHOD FOR EXFOLIATING PARTICLES

Номер: US20190276316A1
Автор: AYELA Frédéric, COLOMBET Damien
Принадлежит: UNIVERSITE GRENOBLE ALPES

The invention relates to an exfoliation method according to which a fluid loaded with particles flows at a first flow rate into a first (), and then into a second, section of a pipe (), the first flow rate being suitable for generating shear stresses and cavitation bubbles in the fluid as it passes through the first section () of the pipe (), the second section () having a hydraulic diameter suitable for bringing about an implosion of cavitation bubbles as soon as the fluid exits the first section () and flows into the second section (), so that an exfoliation of the particles is brought about under the combined action of the shear stresses and a shock wave generated by the implosion of the cavitation bubbles, the first section () having a hydraulic diameter less than 300 μm. 1. A method for exfoliating particles , the method comprises a flow , at a first flow rate , of a carrier fluid loaded with particles , in a first section , then in a second section of a pipe , the first section and the second section being contiguous , the first flow rate being suitable for generating shear stresses and cavitation bubbles in the carrier fluid loaded with particles as it passes through into the first section of the pipe , the second section of the pipe having a hydraulic diameter suitable for bringing about an implosion of the cavitation bubbles as soon as the carrier fluid loaded with particles exits the first section and flows into the second section , so that an exfoliation of the particles is brought about under the combined action of the shear stresses and a shock wave generated by the implosion of the cavitation bubbles ,wherein the first section of the pipe has a hydraulic diameter less than 300 m, and the first flow rate is suitable so that the flow of the carrier fluid loaded with particles in the first section is laminar.2. The method according to claim 1 , wherein the first pipe section has a cross-section of elongated shape of aspect ratio greater than 3.3. The ...

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Номер записи: 67
03-09-2020 дата публикации

REACTOR FOR THE HYDROTHERMAL OXIDATION TREATMENT OF AN ORGANIC MATERIAL IN A REACTION MEDIUM

Номер: US20200276555A1
Автор: Leybros Antoine, Ruiz Jean-Christophe, TURC Hubert-Alexandre
Принадлежит:

A reactor for treating an organic material in a reaction medium by hydrothermal oxidation, comprising: a longitudinal body provided with a cold interface flange; an inner tube, positioned in the body to form an annular area and comprising a cold end and a hot end, the inner tube delimiting an internal reaction area in fluid communication with the annular area via an opening provided in the hot end of the inner tube; blades for stirring the reaction medium situated in the internal reaction area and mounted rotating about the longitudinal axis of the body; a sleeve for injecting organic material to be treated into the inner tube. The inner tube is mounted rotating on the cold flange, so as to be rotated about the longitudinal axis; the sleeve being positioned inside the inner tube, having a bore that defines a passage for the organic material to be treated to pass. 110-. (canceled)11. A reactor for hydrothermal oxidation treatment of an organic material in a reaction medium , comprising:a main body extending along a longitudinal axis, being provided at a first one of its ends with a cold interface flange, sealing means being disposed between the main body and the flange;an inner tube placed inside the main body so as to form an annular zone along the main body, the inner tube comprising a cold first end sealingly contacting with the cold flange, and a warm second end, the inner tube delimiting a reaction internal zone which is in fluid communication with the annular zone through at least one aperture disposed in the warm end of the inner tube;a stirring means for agitating the reaction mixture located in the reaction internal zone of the inner tube, the stirring means being rotatably mounted about the longitudinal axis;a refrigerating means for cooling an effluent located in the reaction internal zone of the inner tube before being discharged from the reactor through an outlet of the main body;an inlet for a water-oxidant mixture located on the side of the cold first ...

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Номер записи: 68
12-10-2017 дата публикации

Radical Polymerization Method and Polymerization Reaction Apparatus

Номер: US20170291964A1
Автор: Keigo Kinoshita, Shigeru Deguchi
Принадлежит: Japan Agency for Marine Earth Science and Technology

A radical polymerization method that enables synthesis, at a high conversion rate, of polymers having a relatively uniform molecular weight and is applicable to various monomers, and an apparatus used for the method. A reaction solution containing monomer and initiator is continuously or intermittently circulated in the apparatus and is heated in a heating-initiation unit to a predetermined temperature simultaneously across a radial direction of a cross section of the flow path whereby the initiator located in a particular volume of the reaction solution is cleaved all at once. The apparatus includes a heating medium production unit 10 , a heating medium-reaction solution mixing unit 20 , a cooling unit 30 , and a recovery unit 40 for a reaction mixture, all communicatively connected by the flow path and optionally a heating reaction unit 60 , a cooling unit 70 , and a recovery unit 80 , all communicatively connected by the flow path.

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Номер записи: 69
19-10-2017 дата публикации

Reactor for Multi-Phase Composition

Номер: US20170296998A1
Автор: Joseph A. MAIER, Michael F. Mcdonald, Richard D. Hembree, Yu F. Wang
Принадлежит: ExxonMobil Chemical Co, ExxonMobil Chemical Patents Inc

A reactor comprising a first portion having a generally cylindrical housing, an inlet at one end of said first portion housing, the opposed end of said first portion housing being the outlet of said first portion, where said first portion includes a rotatable shaft positioned axially within said housing and including at least two shearing paddles extending radially from said rotatable shaft and a second portion having a generally frustoconical housing having a first end larger than a second end, said first end constituting an inlet to said second portion and coextensive with said opposed end of said first portion housing, and an outlet at said second end, where said second portion includes a rotatable shaft positioned axially within said housing and including at least one generally helical flight extending radially from said rotatable shaft.

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Номер записи: 70
26-09-2019 дата публикации

DEVICE FOR AUTOMATED SYNTHESIS OF METAL NANOPARTICLES

Номер: US20190291071A1
Автор: Alfadul Sulaiman Mohammed, Alshamari Ahmad S., Alshamsi Mohammed Ahmad S.
Принадлежит: The King Abdulaziz City for Science and Technology

Disclosed is a device for automated synthesis of homogenous slurry of metal nanoparticles operating under redox controlled conditions by wet chemical reaction method. Device comprises a three-layer reactor unit, multi-feed covering unit, an electric stirring unit system and ground fixing foundation unit. 1. A device for automated synthesis of homogenous slurry of metal nanoparticles by wet chemical reaction under redox controlled conditions , the device comprising:a three-layer reactor unit, wherein the three-layer reactor unit comprises an inner non-reactive layer, a middle insulating layer and an outer resistive layer;a multi-feed covering unit fastened to the three-layer reactor unit, wherein the multi-feed unit comprises a plurality of liquid/gas feeding tubes in a pre-determined design;an electric stirring unit, wherein the electric stirring unit comprises a vertical column with at least one radially guided stirrer from the vertical column, the vertical column being disposed at the center of the three-layer reactor unit at a first end and operably coupled to a power generator at a second end; anda ground fixing foundation unit, wherein the ground fixing foundation unit comprises a plurality of profile fixing auxiliaries.2. The device as claimed in claim 1 , wherein the ground fixing foundation unit extends from the outer resistive layer of the three-layer reactor and drops at a downward angle towards the bottom of the three-layer reactor.3. The device as claimed in claim 1 , wherein the ground fixing foundation unit comprises four profile fixing auxiliaries.4. The device as claimed in further comprises ground rubber auxiliaries at an ulterior side of the ground fixing foundation unit.5. The device as claimed in claim 1 , wherein the at least one radially guided stirrer of the electric stirring unit further comprises three blades.61. The device as claimed in claimed claim 1 , wherein the electric stirring unit comprises three radially guided stirrers from the ...

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Номер записи: 71
26-10-2017 дата публикации

OPTIMIZED PROCESS FOR PREPARING METHACRYLIC ACID

Номер: US20170305830A1
Автор: Balduf Torsten, BURGHARDT Rudolf, KRILL Steffen, RACZEK Melanie
Принадлежит: Evonik Roehm GmbH

The present invention relates to an optimized process for preparing methacrylic acid, wherein methacrolein is prepared in a first stage from propionaldehyde and formaldehyde by means of a Mannich reaction and oxidized in a second stage to methacrylic acid. More particularly, the present invention relates to the reduction in the amounts of catalyst to be used in the first stage, especially to the reduction in the amounts of acid to be used here, by virtue of the additional installation of recycling streams suitable for the purpose. 1. A process for continuously preparing methacrylic acid , comprising:preparing methacrolein in a first process step from formaldehyde and propionaldehyde with at least one acid and at least one organic base as catalysts in a reactor 1, thenseparating methacrolein from the catalyst-containing phase present and oxidizing the methacrolein in a second process step to methacrylic acid with a heterogeneous catalyst in the presence of oxygen and water in a reactor 2, thencondensing and quenching the process gas formed to produce an aqueous crude methacrylic acid, and thenseparating the methacrylic acid from the aqueous phase with an extractant,wherein the aqueous phase after being extracted, comprising carboxylic acids, is passed wholly or partly, directly or indirectly, into reactor 1.2. The process according to claim 1 , wherein the organic base is a secondary amine claim 1 , and the acid which is fed fresh to reactor 1 is sulphuric acid claim 1 , formic acid claim 1 , acetic acid claim 1 , propionic acid and/or mixtures of these acids.3. The process according to claim 1 , wherein the carboxylic acids present in the aqueous phase passed from the second process step into reactor 1 are acetic acid claim 1 , methacrylic acid claim 1 , propionic acid claim 1 , maleic acid claim 1 , acrylic acid claim 1 , terephthalic acid or mixtures comprising at least one of these acids.4. The process according to claim 1 , wherein at least 5% by weight claim 1 ...

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Номер записи: 72
25-10-2018 дата публикации

METHOD FOR CONTINUOUSLY PRODUCING KETOMALONIC ACID COMPOUND USING FLOW REACTOR

Номер: US20180305290A1
Автор: Tani Shinki
Принадлежит: KUMIAI CHEMICAL INDUSTRY CO., LTD.

The purpose of the present invention is to provide a method for continuously producing a ketomalonic acid compound such as a ketomalonic acid diester or a hydrate thereof, which is an industrially useful compound, on an industrial scale and in a safe and steady manner. The present invention relates to: a method in which a malonic acid diester, a carboxylic acid compound and a chlorous acid compound are used as raw material compounds, and these raw material compounds are mixed together to prepare a mixture and the mixture is supplied to a flow reactor continuously, thereby continuously producing a corresponding ketomalonic acid diester or a hydrate thereof; and a continuous production apparatus for performing the method. 1. A continuous production apparatus , characterized in that the apparatus comprising:(1) a mixing part configured to mix a malonic acid diester, a carboxylic acid compound, and a chlorous acid compound;(2) a temperature rising part configured to raise the temperature of the mixed mixture thereof; and(3) a reaction part configured to react the mixture having a temperature raised by the temperature rising part,which is for continuously producing a corresponding ketomalonic acid diester or a hydrate thereof from the malonic acid diester as a raw material compound,wherein the temperature rising part of (2) and the reaction part of (3) are one or two or more flow reactors.2. The continuous production apparatus according to claim 1 , wherein the flow reactors are one or two or more tubular flow reactors.3. The continuous production apparatus according to claim 2 , wherein an equivalent diameter of the tubular flow reactors is from 0.5 mm to 50 mm.4. The continuous production apparatus according to claim 1 , wherein the temperature rising part and the reaction part are present in one tubular flow reactor.5. The continuous production apparatus according to claim 1 , wherein the apparatus comprising:(4) an aging part configured to further age the reaction ...

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Номер записи: 73
25-10-2018 дата публикации

HIGH PRESSURE, FREE RADICAL POLYMERIZATIONS TO PRODUCE ETHYLENE-BASED POLYMERS

Номер: US20180305476A1
Автор: Berbee Otto J., Bishop Michael E., Flores Joaquin, Goncalves Sergio E., Hosman Cornelis J F, Munjal Sarat, Rodriguez Luiz
Принадлежит:

A process to form an ethylene-based polymer, said process comprising at least the following: polymerizing a mixture comprising ethylene, in the presence of at least one free-radical initiator, and in a reactor configuration comprising at least three reaction zones and at least two ethylene feed streams; and wherein the inlet pressure of the first reaction zone is less than, or equal to, 3200 Bar; and wherein the amount of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the first reaction zone is from 40 mole % to 80 mole %, based on the total moles of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the polymerization; and wherein the average polymerization temperature of the first 40 wt % polymer formed (APT) (based on the total amount of polymer formed) is less than, or equal to, 200° C. 1. A process to form an ethylene-based polymer , said process comprising at least the following:polymerizing a mixture comprising ethylene, in the presence of at least one free-radical initiator, and in a reactor configuration comprising at least three reaction zones and at least two ethylene feed streams; andwherein the inlet pressure of the first reaction zone is less than, or equal to, 3200 Bar; and wherein the amount of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the first reaction zone is from 40 mole % to 80 mole %, based on the total moles of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the polymerization; and{'sub': '40 wt %', 'wherein the average polymerization temperature of the first 40 wt % polymer formed (APT) (based on the total amount of polymer formed) is less than, or equal to, 200° C.'}2. A process to form an ethylene-based polymer , said process comprising at least the following:polymerizing a mixture comprising ethylene, in the presence of at least one free-radical initiator, and in a reactor ...

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Номер записи: 74
01-11-2018 дата публикации

USE OF ALCOHOLS CONTAINING AT LEAST TWO URETHANE GROUPS FOR PREPARATION OF POLYETHER POLYOLS

Номер: US20180312632A1
Автор: Hofmann Jörg, Klesczewski Bert, Nefzger Hartmut, Rauwald Urs
Принадлежит:

The present invention relates to a process for preparing polyether polyols by adding alkylene oxides onto H-functional starter compounds, characterized in that at least one alcohol containing at least two urethane groups is used as H-functional starter compound. The invention further provides the polyether polyols containing a structural unit of the formula (IV) where Ris linear or branched Cto C-alkylene which may optionally be interrupted by heteroatoms such as O, S or N and may be substituted, preferably CH—CHor CH—CH(CH), Ris linear or branched Cto C-alkylene, Cto C-cycloalkylene, Cto C-arylene, Cto C-aralkylene, Cto C-alkenylene, Cto C-alkynylene, each of which may optionally by interrupted by heteroatoms such as O, S or N and/or may each be substituted by alkyl, aryl and/or hydroxyl, preferably Cto CM alkylene, Ris H, linear or branched Cto C-alkyl, Cto C-cycloalkyl, Cto C-aryl, Cto C-aralkyl, Cto C-alkenyl, Cto C-alkynyl, each of which may optionally be interrupted by heteroatoms such as O, S or N and/or each of which may be substituted by alkyl, aryl and/or hydroxyl, preferably H, R, is H, linear or branched O to C-alkyl, C-cycloalkyl, Cto C-aryl, Cto C-aralkyl, Cto C-alkenyl, Cto C-alkynyl, each of which may be interrupted by heteroatoms such as O, S or N and/or each of which may be substituted by alkyl, aryl and/or hydroxyl, preferably H, IV is linear or branched Cto C-alkylene which may optionally be interrupted by heteroatoms such as O, S or N and may be substituted, preferably CH—CHor CH—CH(CH), and where Rto Rmay be identical or different from one another, and the polyether polyols obtainable by the process according to the invention. 1. A process for preparing polyether polyols comprising adding alkylene oxides onto H-functional starter compounds , wherein the H-functional starter compound comprises at least one alcohol containing at least two urethane groups.2. The process as claimed in claim 1 , wherein the H-functional starter compound comprises at ...

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Номер записи: 75
17-11-2016 дата публикации

BATCH REACTOR WITH BAFFLE

Номер: US20160332132A1
Автор: Han Kee Do, JUNG Ki Taeg, KIM Hyo Suk, KIM Young Jo, Lee Hye Won, YOON Kyong Jun
Принадлежит: Hanwha Chemical Corporation

A batch reactor of which an installation structure of baffles is improved is provided. A batch reactor includes: a reactor main body containing a reactant; agitation blades provided in the reactor main body to agitate the reactant; a motor coupled to a rotation shaft of the agitation blades to rotate the agitation blades; and a plurality of baffles provided between an inner wall of the reactor main body and the agitation blades, and disposed at a distance from each other along a circumferential direction of the reactor main body. Each of the plurality of baffles includes a plurality of pipes disposed to be adjacent to each other along a radial direction and a circumferential direction of the reactor main body. 1. A batch reactor comprising:a reactor main body containing a reactant;agitation blades provided in the reactor main body to agitate the reactant;a motor coupled to a rotation shaft of the agitation blades to rotate the agitation blades; anda plurality of baffles provided between an inner wall of the reactor main body and the agitation blades, and disposed at a distance from each other along a circumferential direction of the reactor main body,wherein each of the plurality of baffles comprises a plurality of pipes disposed to be adjacent to each other along a radial direction and a circumferential direction of the reactor main body.2. The batch reactor of claim 1 , wherein the plurality of pipes are parallel with the rotation shaft and integrally connected with each other in a meandering pattern by U-shaped connection parts.3. The batch reactor of claim 2 , wherein one of the plurality of pipes penetrates a bottom portion of the reactor main body and another pipe penetrates a side wall of the reactor main body.4. The batch reactor of claim 1 , wherein the plurality of pipes comprise at least three pipes arranged in a triangular pattern.5. The batch reactor of claim 4 , wherein at least two among the three pipes are arranged along a radial direction of the ...

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Номер записи: 76
15-10-2020 дата публикации

PERFORMIC ACID ON-SITE GENERATOR AND FORMULATOR

Номер: US20200323205A1
Автор: Balasubramanian Ramakrishnan, Breshears Jeffery D., Brunner Brian Paul, Crew Benjamin, Hanson Catherine, Kleczewski Ariel Chatman, Kraus Paul R., Li Junzhong, McSherry David D., Staub Richard, Tran Minh, Yunus Irwan
Принадлежит:

Methods of generating performic acid by contacting aqueous oxidizing agent and aqueous formic acid source in liquid phase are disclosed. A system and apparatus for the in situ production of the performic acid chemistries is further disclosed. In particular, a continuous flow reactor is provided to generate performic acid at variable rates. Methods of employing the oxidizing biocide for various disinfection applications are also disclosed. 1. An adjustable biocide generator system for on-site performic acid forming composition generation comprising:an apparatus comprising at least one inlet, a length of pipe, a heating device, an outlet, and a storage reservoir for dosing a performic acid forming composition from said length of pipe;wherein said inlet(s) are in fluid connection with said length of pipe and supply reagents to produce said performic acid forming composition in said length of pipe;wherein said reagents comprise a formic acid source and an oxidizing agent; andwherein said length of pipe is in fluid connection with said outlet to dispense said performic acid forming composition to a storage reservoir.2. The system according to claim 1 , wherein said performic acid forming composition is an individual or mixed performic acid forming composition according to a user- or system-inputted selection claim 1 , and wherein the mixed performic acid forming composition comprises performic acid and an additional C1-C22 percarboxylic acid.3. The system according to claim 1 , wherein the formic acid source is formic acid claim 1 , and wherein said oxidizing agent is 1-50% w/v hydrogen peroxide.4. The system according to claim 1 , wherein the length of pipe further comprises a cooling system prior to dispensing said performic acid forming composition to the storage reservoir.5. The system according to claim 1 , further comprising at least one measurement device claim 1 , wherein said measurement device measures one or more reaction kinetics or system operations for said ...

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Номер записи: 77
15-10-2020 дата публикации

ETHYLENE/CO INTERPOLYMERS AND PROCESSES TO MAKE THE SAME

Номер: US20200325275A1
Автор: Cooper James L., Kardos Lori L., Karjala Teresa P., Ortega Jose
Принадлежит: Dow Global Technologies LLC

A composition comprising an ethylene/CO interpolymer, formed from a high pressure, free-radical polymerization, and wherein the ethylene/CO interpolymer has the following properties: a) a CO content from “greater than 0” weight percent to less than, or equal to, 10 weight percent CO (carbon monoxide), based on the weight of the interpolymer; and b) a melting point, Tm, in ° C. that meets the following relationship: Tm (° C.)≤601.4*(Density in g/cc)−452.5(° C.). 1. A composition comprising an ethylene/CO interpolymer , formed from a high pressure , free-radical polymerization , and wherein the ethylene/CO interpolymer has the following properties:a) a CO content from “greater than 0” weight percent to less than, or equal to, 10 weight percent CO (carbon monoxide), based on the weight of the interpolymer; and {'br': None, 'i': 'Tm', '(° C.)≤601.4*(Density in g/cc)−452.5(° C.).'}, 'b) a melting point, Tm, in ° C. that meets the following relationship2. The composition of claim 1 , wherein the ethylene/CO interpolymer meets the following relationship: MS (cN) ≥2.0 (wt % CO)+2.0.3. The composition of claim 1 , wherein the ethylene/CO interpolymer has a melt index (I2) from 0.1 to 100 g/10 min.4. The composition of claim 1 , wherein the ethylene/CO interpolymer has a Tm (° C.) ≥601.4*(Density in g/cc)−460.0(° C.).5. The composition of claim 1 , wherein the ethylene/CO interpolymer has a melting temperature claim 1 , Tm claim 1 , from 105.5° C. to 110.5° C.6. The composition of claim 1 , wherein the ethylene/CO interpolymer has a density from 0.910 to 0.990 g/cc.7. The composition of claim 1 , wherein the ethylene/CO interpolymer has an amyl group level greater than claim 1 , or equal to claim 1 , 0.5 amyl group per 1000 carbon atoms claim 1 , as determined by 13C NMR.8. The composition of claim 1 , wherein ethylene/CO interpolymer is an ethylene/CO copolymer.9. The composition of claim 1 , wherein the composition further comprises a second ethylene-based polymer.10. The ...

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Номер записи: 78
10-12-2015 дата публикации

Hydrothermal oxidation device for treating a material in a supercritical medium and implementation method

Номер: US20150352391A1
Автор: Frederic Charton, Hubert-Alexandre Turc, Jean Christophe Ruiz
Принадлежит: Commissariat a lEnergie Atomique et aux Energies Alternatives CEA

A hydrothermal oxidation device for treatment of a material in a supercritical medium includes a main body, an internal tube installed inside the main body to form an annular zone along the main body, a stirring mechanism installed in an internal zone of the internal tube and actuated by a rotating shaft, a cooling mechanism to cool the treated material located in the internal zone of the internal tube, an inlet for water and oxidant mix, an effluents outlet, an inlet for material to be treated, located at one end of the main body, this inlet opening up into the internal tube. The oxidation device includes an inlet for a diluted effluent, located in the flange and connected to a preheating coil arranged along an internal wall of the main body and extending from its first end to its second end, the preheating coil opening up into the internal tube.

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Номер записи: 79
22-10-2020 дата публикации

METHOD FOR PRODUCTION OF METHYL METHACRYLATE BY OXIDATIVE ESTERIFICATION USING A HETEROGENEOUS CATALYST

Номер: US20200331840A1
Автор: Frick Christopher D., Herron Jeffrey A., Lee Wen Sheng, Limbach Kirk W., Sussman Victor J.
Принадлежит:

A method for preparing methyl methacrylate from methacrolein and methanol; said method comprising contacting a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a noble metal, wherein said support comprises silicon, and wherein said catalyst comprises from 0.1 to 40 mol % titanium and from 0.1 to 10 mol % of at least one noble metal. 1. A method for preparing methyl methacrylate from methacrolein and methanol; said method comprising contacting a mixture comprising methacrolein , methanol and oxygen with a heterogeneous catalyst comprising a support and a noble metal , wherein said support comprises silicon , and wherein said catalyst comprises from 0.1 to 40 mol % titanium and from 0.1 to 10 mol % of at least one noble metal , wherein mole percentages are based on total moles of silicon atoms and metal atoms.2. The method of in which the noble metal is selected from the group consisting of gold claim 1 , palladium and combinations thereof.3. The method of in which the catalyst has an average diameter from 60 microns to 10 mm.4. The method of in which the catalyst comprises 0.1 to 8 mol % of at least one noble metal claim 3 , 60 to 95 mol % silicon claim 3 , 0.1 to 20 mol % titanium and 0.1 to 20 mol % alkali metal or alkaline earth metal.5. The method of in which at least 90 wt % of the noble metal is in the outer 60% of catalyst volume.6. The method of in which the support is silica.7. The method of in which the noble metal is gold.8. The method of in which the catalyst is contained in a catalyst bed.9. The method of in which methanol and methacrolein are fed to a reactor containing the catalyst bed in a molar ratio from 1:1 to 10:1 claim 8 , respectively.10. The method of in which the reactor is a tubular continuous reactor. The invention relates to a method for preparing methyl methacrylate from methacrolein and methanol using a heterogeneous catalyst.Heterogeneous catalysts having noble metals supported ...

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Номер записи: 80
22-12-2016 дата публикации

Production Processes, Systems, Methods, and Apparatuses

Номер: US20160369171A1
Автор: Osterloh James D., Spitzauer Michael P.
Принадлежит: GPI PATENT HOLDING LLC

The present disclosure provides production processes that can include exposing a carbon-based material to liquid media to form hydrocarbon fuel. Waste to fuel conversion processes as well as waste material processing reactors are provided that can be configured to convert waste to fuel. Heat exchangers, power generation processes and combustion turbine exhaust apparatus are also provided. Fuel generation processes and generation systems are provided. Reaction media conduit systems as well as processes for servicing reactant media pumps coupled to both inlet and outlet conduits containing reactant media, are also provided. 119-. (canceled)20. A waste material processing reactor configured to convert waste to fuel , the reactor comprising:a substantially columnar vessel extending along the vessel walls from a base portion to a top portion;an opening within the top portion of the vessel, the opening configured to receive carbon-based waste material; anda liquid media conduit extending from the base portion to the top portion of the vessel, the conduit configured to circulate liquid media from within the base portion of the reactor to the top portion of the reactor.21. The reactor of wherein the vessel is constructed primarily of carbon steel material.22. The reactor of further comprising an atmosphere exchange conveyor coupled to the opening claim 20 , the exchange conveyor configured to exchange an oxygen-comprising atmosphere associated with the waste material with a substantially oxygen-free atmosphere within the reactor.23. The reactor of wherein the opening is also configured to receive an agitation apparatus.24. The reactor of wherein the agitation apparatus comprises a mechanical agitation apparatus that extends to within the vessel and proximate the base of the vessel.25. The reactor of further comprising a hydrocarbon fuel recovery conduit coupled to the reactor and in fluid communication with the interior of the vessel.26. The reactor of wherein the liquid ...

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Номер записи: 81
13-12-2018 дата публикации

APPARATUS FOR AND METHOD OF PROCESSING A SLURRY CONTAINING ORGANIC COMPONENTS

Номер: US20180354834A1
Автор: ESSING Gerardus Cornelis Otto Bernard, Hendry Douglas Scott
Принадлежит:

The invention relates to an apparatus () for processing a slurry containing organic components, such as biomass, having a water contents of at least 50%, comprising a heat exchanger () to heat the slurry and a reactor () to convert at least a part of the organic components in the slurry, wherein at least one of the heat exchanger () and the reactor () comprises one or more pipes (A; A). At least one transport screw () is accommodated in the pipe (A; A) or at least one of the pipes (A; A). 1. An apparatus for processing a slurry containing organic components , having a water contents of at least 50% , comprising a heat exchanger configured to heat the slurry and a reactor configured to convert at least a part of the organic components in the slurry , wherein at least one of the heat exchanger and the reactor comprises one or more pipes and wherein at least one transport screw has an open center and is accommodated in the one or more pipes.2. The apparatus according to claim 1 , wherein the heat exchanger and the reactor each comprise one or more pipes and a transport screw is accommodated in at least one pipe of the heat exchanger and in at least one pipe of the reactor.3. The apparatus according to claim 2 , wherein a transport screw is accommodated in all the pipes of the heat exchanger and of the reactor.4. The apparatus claim 1 , wherein the at least one transport screw comprises a plurality of screws claim 1 , and wherein some screws each have an open center.5. The apparatus according to claim 1 , wherein the at least one transport screw claim 1 , comprises a helical element.6. The apparatus according to claim 5 , wherein the at least one transport screw comprises a screw ribbon.7. The apparatus according to claim 1 , wherein the at least one transport screw claim 1 , comprises an agent claim 1 , which interacts with the conversion of the organic components in the slurry.8. The apparatus according to claim 1 , comprising at least one motor configured to drive ...

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Номер записи: 82
31-12-2015 дата публикации

STEAM METHANE REFORMER SYSTEM AND METHOD OF PERFORMING A STEAM METHANE REFORMING PROCESS

Номер: US20150376003A1
Автор: FEINSTEIN Jonathan Jay, RALSTON Michael P.
Принадлежит:

An apparatus includes a furnace having at least one bayonet reforming tube. The furnace is adapted to receive a gas including a hydrocarbon and at least one of steam and carbon dioxide via the bayonet reforming tube, heat and catalytically react the gas to form syngas at a first temperature, cool the syngas to a second temperature lower than the first temperature, and eject the syngas from the tube. The furnace has a first effluent stream including flue gas and a second effluent stream including syngas. The apparatus also includes a first heat recovery section adapted to transfer heat from the first effluent stream to a first heat load including one of air, water, and steam, and a second heat recovery section adapted to transfer heat from the second effluent stream to a second heat load. 1. An apparatus comprising: receive a gas comprising a hydrocarbon and at least one of steam and carbon dioxide via the bayonet reforming tube;', 'heat and catalytically react the gas to form syngas at a first temperature;', 'cool the syngas to a second temperature lower than the first temperature; and', 'eject the syngas from the tube;', 'wherein the furnace has a first effluent stream comprising flue gas and a second effluent stream comprising syngas;, 'a furnace comprising at least one bayonet reforming tube, the furnace being adapted toa first heat recovery section adapted to transfer heat from the first effluent stream to a first heat load comprising one of air, water, and steam; anda second heat recovery section adapted to transfer heat from the second effluent stream to a second heat load.2. The apparatus of claim 1 , wherein the second heat load comprises one of water claim 1 , carbon dioxide claim 1 , a hydrocarbon claim 1 , and mixtures thereof.3. The apparatus of further comprising:a heat recovery section comprising one or more burners adapted to perform further heating of a load.4. The apparatus of claim 1 , further comprising:a first heat recovery section adapted to ...

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Номер записи: 83
20-12-2018 дата публикации

Method and System for Monitoring a Chemical Reaction

Номер: US20180361343A1
Автор: Altenburger Daniel, Eiholzer Adrian, Georg Alain, Merkel Norbert, Moser Marlies, Rosasco Esteban
Принадлежит:

In a method for monitoring a chemical reaction in a continuously operated reactor with at least one tube section, wherein the reactor has an intake, an outlet and a main flow direction running between the intake and the outlet, substances are supplied to the reactor via the intake and a product mixture made up of these substances and the solidified products thereof is created in the reactor. The reaction is monitored and measures are taken to prevent an uncontrolled reaction process, wherein these measures comprise at least the following steps: interruption of the intake and outlet, active pressure relief of the reactor and flushing of the reactor with an inert substance. This facilitates a safe and efficient interruption of the chemical reaction. 1. A method for monitoring a chemical reaction in a continuously operated reactor with at least one tube section , wherein the reactor has an intake , an outlet and a main flow direction running between the intake and the outlet ,wherein substances are supplied to the reactor via the intake and a product mixture made up of these substances and solidified products thereof is created in the reactor,wherein the reaction is monitored and measures are taken to prevent an uncontrolled reaction process,wherein these measures comprise at least the following steps:interruption of the intake and outlet,active pressure relief of the reactor andflushing of the reactor with an inert substance.2. The method according to claim 1 , wherein active pressure relief and flushing take place only after the intake and outlet have been interrupted.3. The method according to claim 1 , wherein active pressure relief and flushing take place simultaneously.4. The method according to claim 1 , wherein flushing takes place against the main flow direction of the reactor.5. The method according to claim 1 , wherein the main flow direction runs in a vertical direction and flushing takes place from top to bottom.6. The method according to claim 1 , wherein ...

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Номер записи: 84
20-12-2018 дата публикации

PROCESS FOR THE PREPARATION OF GLYCOLS

Номер: US20180362425A1
Автор: CHEWTER Leslie Andrew, HUIZENGA Pieter, Nisbet Timothy Michael, VAN DER HEIDE Evert
Принадлежит: SHELL OIL COMPANY

The invention provides a continuous process for the preparation of ethylene glycol and 1,2-propylene glycol from starting material comprising one or more saccharides, said process comprising providing a feedstock comprising said one or more saccharides in a solvent to a reactor, said reactor having supported therein a heterogeneous hydrogenation catalytic composition and contacting the feedstock therein directly with said heterogeneous hydrogenation catalytic composition and concurrently with a retro-aldol catalyst composition in the presence of hydrogen, wherein said reactor operates in an essentially plug flow manner. 1. A continuous process for the preparation of ethylene glycol and 1 ,2-propylene glycol from starting material comprising one or more saccharides , said process comprising providing a feedstock comprising said one or more saccharides in a solvent to a reactor , said reactor having supported therein a heterogeneous hydrogenation catalytic composition and contacting the feedstock therein directly with said heterogeneous hydrogenation catalytic composition and concurrently with a retro-aldol catalyst composition in the presence of hydrogen , wherein said reactor operates in an essentially plug flow manner.2. The process as claimed in claim 1 , wherein the starting material supplied to the first reactor comprises starch and/or hydrolysed starch.3. The process as claimed in claim 1 , wherein the solvent is water or a Cto Calcohol or polyalcohol including sugar alcohols or mixtures thereof.4. The process as claimed in claim 1 , wherein the heterogeneous hydrogenation catalytic composition comprises one or more materials selected from transition metals from groups 8 claim 1 , 9 or 10 or compounds thereof claim 1 , with catalytic hydrogenation capabilities.5. The process as claimed in claim 1 , wherein the retro-aldol catalyst composition comprises one or more compound claim 1 , complex or elemental material comprising tungsten claim 1 , molybdenum claim 1 ...

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Номер записи: 85
20-12-2018 дата публикации

Method and device for removing contaminants arising during the production of aliphatic nitrate esters

Номер: US20180362442A1
Автор: Heinrich Hermann, Jürgen Gebauer, Jürgen PÖHLMANN, Mirko HÄNDEL
Принадлежит: Josef Meissner GmbH and Co KG

The invention relates to a method and to a device for removing contaminants arising during the production of aliphatic or alicyclic nitric acid esters, in particular for removing contaminants from nitrated crude nitric acid esters, which nitrated crude nitric acid esters arise during the nitration of monovalent or multivalent aliphatic or alicyclic alcohols capable of nitration, after the separation of the final nitrating acid, and to a production system for nitrating monovalent or multivalent aliphatic alcohols capable of nitration with subsequent purification of the nitrated nitric acid esters.

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Номер записи: 86
20-12-2018 дата публикации

PROCESS FOR PREPARING POLY(ESTER-CARBONATE)S AND POLY(ESTER-CARBONATE)S PREPARED THEREBY

Номер: US20180362706A1
Автор: Gautam Pankaj Singh, Hoover James Franklin, Jimenez Jorge, Mahood James Alan, PATIL Rahul, Taylor Joshua D.
Принадлежит:

A method of preparing a poly(ester-carbonate) includes contacting an aqueous solution including a dicarboxylic acid with a first solution including phosgene and a first organic solvent in a tubular reactor to provide a first reaction mixture. A dihydroxy aromatic compound, the corresponding dialkali metal salt of the dihydroxy aromatic compound, or a combination comprising at least one of the foregoing, water, and a second organic solvent are combined to provide a second reaction mixture. The method further includes introducing the first reaction mixture, the second reaction mixture, and a second solution comprising phosgene to a tank reactor, wherein the tank reactor has a first pH of 7 to 10. The pH is optionally raised to 9 to 11 to provide a third reaction mixture including the poly(ester-carbonate). Poly(ester-carbonate)s prepared according to the method described herein are also disclosed. 1. A method of preparing a poly(ester-carbonate) , the method comprisingcontacting an aqueous solution comprising a dicarboxylic acid with a first solution comprising phosgene and a first organic solvent in a tubular reactor to provide a first reaction mixture comprising the dicarboxylic acid, the corresponding diacid chloride, phosgene, or a combination comprising at least one of the foregoing;combining a dihydroxy aromatic compound, the corresponding dialkali metal salt of the dihydroxy aromatic compound, or a combination comprising at least one of the foregoing, water, and a second organic solvent to provide a second reaction mixture;introducing the first reaction mixture, the second reaction mixture, and a second solution comprising phosgene to a tank reactor, wherein the tank reactor has a first pH of 7 to 9; andsubsequently raising the pH to 9 to 11 to provide a third reaction mixture comprising the poly(ester-carbonate).2. A method of preparing a poly(ester-carbonate) , the method comprisingcontacting an aqueous solution comprising a dicarboxylic acid with a first ...

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Номер записи: 87
28-11-2019 дата публикации

Apparatus and methods of forming solid carbon

Номер: US20190359488A1
Автор: Dallas B. Noyes, Randall Smith
Принадлежит: Seerstone LLC

A method of reducing a carbon oxide to a lower oxidation state by providing a solution of a metal acetate in a solvent in a reaction vessel, evaporating the solvent to leave a film of the metal acetate on an interior surface of the reaction vessel, and reacting a carbon oxide with a gaseous reducing agent in the reaction vessel to produce a solid carbon product on the metal acetate is disclosed. Another method includes dispersing particles in a gas. The particles include a solution of a metal acetate in a solvent. The solvent is evaporated to form particles including the metal acetate. An apparatus includes a capillary tube configured to receive and emit a solution, an electrode, and a voltage source connected to the capillary tube, the voltage source having a higher potential than the electrode.

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Номер записи: 88
05-12-2019 дата публикации

Method and device for removing contaminants arising during the production of aliphatic nitrate esters

Номер: US20190367441A1
Автор: Heinrich Hermann, Jürgen Gebauer, Jürgen PÖHLMANN, Mirko HÄNDEL
Принадлежит: Josef Meissner GmbH and Co KG

The invention relates to a method and to a device for removing contaminants arising during the production of aliphatic or alicyclic nitric acid esters, in particular for removing contaminants from nitrated crude nitric acid esters, which nitrated crude nitric acid esters arise during the nitration of monovalent or multivalent aliphatic or alicyclic alcohols capable of nitration, after the separation of the final nitrating acid, and to a production system for nitrating monovalent or multivalent aliphatic alcohols capable of nitration with subsequent purification of the nitrated nitric acid esters.

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Номер записи: 89
03-12-2020 дата публикации

CONTINUOUS FLOW PROCESS FOR PREPARING CONDUCTING POLYMERS

Номер: US20200376457A1
Автор: BRUTON Eric, Flack Matthew, HORNUNG Christian, KINLEN Patrick, KOHL Thomas, TSANAKTSIDS John, ZWEIG Andrew
Принадлежит:

The present disclosure relates to a continuous flow process for preparing conducting polymers, for example polyaniline. The continuous flow process can provide a controlled synthesis of a conducting polymer from an emulsion comprising a polymerizable organic monomer and a free radical initiator in flow within a temperature controlled continuous flow reactor comprising at least one mixing element. The present disclosure also relates to the conducting polymers prepared by the continuous flow process. 1. A continuous flow process for controlled synthesis of a conducting polymer or salt thereof , comprising providing an emulsion of a polymerizable organic monomer and a free radical initiator in a temperature controlled continuous flow reactor comprising at least one mixing element , at a temperature effective for synthesising the conducting polymer or salt thereof to provide a product stream comprising the conducting polymer or salt thereof , wherein the emulsion is formed from an organic stream comprising the polymerizable organic monomer.2. The continuous flow process of claim 1 , wherein the emulsion comprises either i) the polymerizable organic monomer claim 1 , a protonic acid claim 1 , and the free radical initiator claim 1 , or ii) an organic monomer salt of an organic monomer and a protonic acid claim 1 , and the free radical initiator.3. The continuous flow process of claim 1 , wherein the organic stream further comprises a protonic acid.4. The continuous flow process of claim 1 , wherein the emulsion is formed from the organic stream and an aqueous oxidant stream comprising the free radical initiator.5. The continuous flow process of claim 1 , wherein the emulsion is formed from an organic stream and an oxidant stream claim 1 , the organic stream comprising the polymerizable organic monomer and the protonic acid and the oxidant stream comprising the free radical initiator.6. The continuous flow process of claim 1 , wherein the emulsion is formed from an ...

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Номер записи: 90
26-12-2019 дата публикации

MULTISTAGE CATALYST INJECTION SYSTEM FOR AN OLEFIN POLYMERIZATION REACTOR

Номер: US20190388863A1
Автор: Clavelle Eric, Harding Geoffrey, Sibtain Fazle, Van Asseldonk Lawrence, Van Asseldonk Robert
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

This disclosure relates to a method and an apparatus for the delivery of a multi-component olefin polymerization catalyst to a polymerization reactor. The apparatus includes: a first catalyst component delivery conduit; a second catalyst component delivery conduit which is disposed within the first catalyst component delivery conduit; a first catalyst component mixing conduit; a third catalyst component delivery conduit which is disposed within the first catalyst component mixing conduit; a second catalyst component mixing conduit comprising an upstream section and a downstream section, the downstream section terminating within the polymerization reactor; and a diluent delivery conduit; the first and second catalyst component delivery conduits each being open-ended and co-terminating at the first catalyst component mixing conduit; the first catalyst component mixing conduit and the third catalyst component delivery conduit each being open-ended and co-terminating at the upstream section of the second catalyst component mixing conduit; and the diluent delivery conduit terminating at the downstream section of the second catalyst component mixing conduit. 1. An apparatus for the delivery of a multi-component olefin polymerization catalyst to a polymerization reactor , the apparatus comprising:a first catalyst component delivery conduit;a second catalyst component delivery conduit which is disposed within the first catalyst component delivery conduit;a first catalyst component mixing conduit;a third catalyst component delivery conduit which is disposed within the first catalyst component mixing conduit;a second catalyst component mixing conduit comprising an upstream section and a downstream section; anda diluent delivery conduit;the first and second catalyst component delivery conduits each being open ended and co-terminating at the first catalyst component mixing conduit, the first catalyst component mixing conduit and the third catalyst component delivery conduit ...

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Номер записи: 91
24-12-2020 дата публикации

Feed distribution apparatus for moving bed reactor

Номер: US20200398213A1
Автор: Adam C. Madlinger, Anjaneya S. Kovvali, Arsam Behkish, Thomas M. Smith
Принадлежит: ExxonMobil Research and Engineering Co

A feed distribution apparatus and method of using such an apparatus are provided for introducing a three-phase flow into a moving bed reactor that is operated under co-current flow conditions. The feed distribution apparatus can allow for separate introduction of liquid and solids in a manner that allows for even distribution of liquid within the solids. The gas portion of the flow can be introduced in any of a variety of convenient manners for distributing gas into a liquid or solid flow.

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Номер записи: 92
24-12-2020 дата публикации

Microwave-Based Recovery Of Hydrocarbons And Fossil Fuels

Номер: US20200399541A1
Автор: Everleigh Carl, Forthe Julian, Pringle Frank G.
Принадлежит:

The present invention provides methods for decomposing and extracting compositions for the recovery of petroleum-based materials from composites comprising those petroleum-based materials, comprising subjecting the compositions and/or composites to microwave radiation, wherein the microwave radiation is in the range of from about 4 GHz to about 18 GHz. The present invention also provides for products produced by the methods of the present invention and for apparatuses used to perform the methods of the present invention. 1. An apparatus for extracting a petroleum-based material from a composite comprising petroleum-based material , comprising:a microwave radiation generator, wherein said generator is capable of applying microwave radiation characterized as having at least one frequency component in the range of from about 4 GHz to about 18 GHz; andat least one container to collect said extracted petroleum-based material.2. The apparatus of claim 1 , wherein the microwave radiation generator is capable of applying a microwave radiation frequency of between about 4.0 and about 12.0 GHz.3. The apparatus of claim 2 , wherein the microwave radiation generator is capable of applying a microwave radiation frequency of between about 7.9 and about 8.7 GHz.4. The apparatus of claim 1 , wherein the microwave radiation generator is capable of applying a sweeping range of microwave radiation frequencies of between about 4.0 and about 12.0 GHz.5. The apparatus of claim 4 , wherein the range of frequencies of said radiation is in the C-Band frequency range.6. The apparatus of claim 4 , wherein the range of frequencies of said radiation is in the X-Band frequency range.7. The apparatus of claim 4 , wherein the range of frequencies of said radiation is in the range of from about 5.8 GHz to about 7.0 GHz.8. The apparatus of claim 4 , wherein the frequency of said radiation is in the range of from about 7.9 GHz to about 8.7 GHz.9. The apparatus of claim 1 , further comprising at least ...

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Номер записи: 93
31-12-2020 дата публикации

RISER EXTENSION APPARATUS AND PROCESS

Номер: US20200406208A1
Автор: Davydov Lev, KULPRATHIPANJA Sathit, Mehlberg Robert, Stine Michael A.
Принадлежит:

In an apparatus for fluid catalytic cracking a riser having a top and a bottom for fluidizing and cracking a hydrocarbon feed stream by contact with catalyst exits an outlet at the top of the riser. A downer in communication with the outlet of the riser receives cracked hydrocarbon product and catalyst. A swirl duct in communication with the downer has a discharge opening below the outlet for discharging said cracked hydrocarbon product and catalyst. A stream of hydrocarbon feed and a catalyst is passed upwardly in a riser. A stream of gaseous hydrocarbon products and catalyst is directedly downwardly and then the stream of gaseous hydrocarbon products and catalyst are directed to flow in an angular direction to separate gaseous hydrocarbon products from the catalyst. 1. A fluidized catalytic cracking process , comprising:passing a stream of hydrocarbon feed and a catalyst upwardly in a riser while catalytically converting said hydrocarbon feed to hydrocarbon products;directing said stream downwardly while catalytically converting said hydrocarbon feed to hydrocarbon products to produce a stream of gaseous hydrocarbon products and catalyst;directing said stream of gaseous hydrocarbon products and catalyst to flow in an angular direction to separate said gaseous hydrocarbon products from said catalyst.2. The process of further comprising directing all of said stream of gaseous hydrocarbon products and catalyst to flow in an angular direction.3. The process of further comprising directing said stream of gaseous hydrocarbon products and catalyst downwardly in a downer.4. The process of further comprising discharging said stream of gaseous hydrocarbon products and catalyst from said downer through a curved duct to direct said stream of gaseous hydrocarbon products and catalyst to flow in a generally horizontal angular direction.5. The process of further comprising passing a stream of separated gaseous hydrocarbon products adjacently to the riser to be further separated ...

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Номер записи: 94
31-12-2020 дата публикации

Rotary Feeder with Cleaning Nozzles

Номер: US20200406210A1
Автор: GARZA Jorge, Hoener Andrea L., MATHOPOULLOS Elena
Принадлежит:

A rotary feeder having a stationary, cylindrical housing having disposed therein a number of injection nozzles, and within which rotate a plurality of vanes about a central axis, wherein pairs of adjacent vanes of the plurality of vanes define wedge volumes, wherein the housing extends a width along the central axis, wherein each of the vanes has a length along the central axis, and wherein the injection nozzles are positioned across the width of the housing, such that a spray pattern of a gas injected via the number of injection nozzles spans substantially the entire length of the vanes. 1. A rotary feeder comprising:a stationary, cylindrical housing having disposed therein a number of injection nozzles, and within which rotate a plurality of vanes about a central axis, wherein pairs of adjacent vanes of the plurality of vanes define wedge volumes, wherein the housing extends a width along the central axis, wherein each of the vanes has a length along the central axis, and wherein the injection nozzles are positioned across the width of the housing, such that a spray pattern of a gas injected via the number of injection nozzles spans substantially the entire length of the vanes.2. The rotary feeder of claim 1 , wherein the number of injection nozzles are positioned such that the wedge volumes defined by the pairs of adjacent vanes are substantially full when they rotate past the location of the number of injection nozzles within the housing.3. The rotary feeder of claim 2 , wherein each of the number of injection nozzles is located at a position along a circumference of the housing that is in the range of from about 50° to about 170° from the inlet claim 2 , along the direction of rotation of the plurality of vanes.4. The rotary feeder of claim 1 , wherein the stationary claim 1 , cylindrical housing defines the inlet and an outlet claim 1 , wherein the inlet is positioned at a top of the housing claim 1 , and the outlet is positioned at a bottom of the housing.51. ...

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Номер записи: 95
12-07-2005 дата публикации

Method for transitioning between Ziegler-Natta and metallocene catalysts in a bulk loop reactor for the production of polypropylene

Номер: US6916892B2
Автор: David Attoe, David Rauscher, Kai Hortmann, Kevin McGovern, Michel Daumerie, Michel Messiaen, Renaud Oreins, Ronald Tharappel, William Gauthier
Принадлежит: Fina Technology Inc

The present invention relates to propylene polymerization process in a bulk loop reactor, and particularly to propylene polymerization process for polymerizing commercial quantities of polypropylene in a bulk loop reactor by sequentially introducing Ziegler-Natta and metallocene catalyst systems into the bulk loop reactor. In one embodiment, separate catalyst mixing systems are used to introduce a quantity of metallocene catalyst and Ziegler-Natta catalyst into the bulk loop reactor. The frequency rate at which the quantity of metallocene catalyst is introduced into the bulk loop reactor may be higher than the frequency rate at which the quantity of Ziegler-Natta catalyst is introduced. In another embodiment, a method of polymerizing propylene in a bulk loop reactor is provided which includes contacting a quantity of supported metallocene catalyst with a first quantity of scavenger, such as TEAL and or TIBAL, prior to injecting the supported metallocene catalyst into the bulk loop reactor and contacting a quantity of Ziegler-Natta catalyst system with a second quantity of scavenger prior to injecting the Ziegler-Natta catalyst system into the bulk loop reactor, wherein the second quantity of scavenger is greater that the first quantity of scavenger. In another embodiment, a method of contacting a flow of metallocene with a flow of propylene is provided. This method includes directing the flow of metallocene towards a junction, directing the flow of propylene towards the junction and maintaining a portion of the flow of metallocene separate from a portion of the flow propylene within a portion of the junction downstream of the flow of propylene into the junction. In another embodiment, a method of introducing a quantity of antifouling agent into a catalyst mixing system is provided. In this embodiment a portion of the antifouling agent is introduced at or downstream of a point of contact of a stream of propylene with a stream of catalyst. The antifouling agent may be ...

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Номер записи: 96
19-06-2003 дата публикации

Method for transitioning between Ziegler-Natta and metallocene catalysts in a bulk loop reactor for the production of polyproylene

Номер: US20030114608A1
Автор: David Attoe, David Rauscher, Kai Hortmann, Kevin McGovern, Michel Daumerie, Michel Messiaen, Renaud Oreins, Ronald Tharappel, William Gauthier
Принадлежит: Fina Technology Inc

The present invention relates to propylene polymerization process in a bulk loop reactor, and particularly to propylene polymerization process for polymerizing commercial quantities of polypropylene in a bulk loop reactor by sequentially introducing Ziegler-Natta and metallocene catalyst systems into the bulk loop reactor. In one embodiment, separate catalyst mixing systems are used to introduce a quantity of metallocene catalyst and Ziegler-Natta catalyst into the bulk loop reactor. The frequency rate at which the quantity of metallocene catalyst is introduced into the bulk loop reactor may be higher than the frequency rate at which the quantity of Ziegler-Natta catalyst is introduced. In another embodiment, a method of polymerizing propylene in a bulk loop reactor is provided which includes contacting a quantity of supported metallocene catalyst with a first quantity of scavenger, such as TEAL and or TIBAL, prior to injecting the supported metallocene catalyst into the bulk loop reactor and contacting a quantity of Ziegler-Natta catalyst system with a second quantity of scavenger prior to injecting the Ziegler-Natta catalyst system into the bulk loop reactor, wherein the second quantity of scavenger is greater that the first quantity of scavenger. In another embodiment, a method of contacting a flow of metallocene with a flow of propylene is provided. This method includes directing the flow of metallocene towards a junction, directing the flow of propylene towards the junction and maintaining a portion of the flow of metallocene separate from a portion of the flow propylene within a portion of the junction downstream of the flow of propylene into the junction. In another embodiment, a method of introducing a quantity of antifouling agent into a catalyst mixing system is provided. In this embodiment a portion of the antifouling agent is introduced at or downstream of a point of contact of a stream of propylene with a stream of catalyst. The antifouling agent may be ...

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Номер записи: 97
25-08-2005 дата публикации

Multiple loop reactor for olefin polymerization

Номер: WO2005077985A2
Автор: Hugo Vandaele
Принадлежит: TOTAL PETROCHEMICALS RESEARCH FELUY

The present invention provides a multiple loop reactor suitable for polymerizing olefins comprising at least two interconnected loop reactors, whereby said connection essentially consists of one or more transfer lines suitable for transferring polymer slurry from a reactor to another reactor and whereby said transfer line extends substantially horizontally. The invention further relates to a process for producing olefin polymers in a multiple loop react or according to the invention. The invention also relates to the use of a transfer line for transferring polymer slurry from a reactor to another reactor in a multiple loop reactor comprising at least two interconnected loop reactors, whereby said transfer line extends substantially horizontally.

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Номер записи: 98
14-07-2015 дата публикации

Polyolefin production with different diluents in multiple polymerization reactors

Номер: US9079986B2
Автор: Catherine M. Gill, Elizabeth Ann Benham, Joel A Mutchler, Maruti Bhandarkar, Rebecca A. Gonzales, Scott E. Kufeld, Thanh T. Nguyen, Timothy O. Odi
Принадлежит: Chevron Phillips Chemical Co LP

A system and method for producing polyolefin, including a polyolefin reactor system having: a first reactor to produce a first reactor discharge stream having a first polyolefin and a first diluent; and a second reactor to receive at least a portion of the first reactor discharge stream and to produce a second reactor discharge stream having a second polyolefin and a second diluent, wherein the second diluent is different than the first diluent.

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Номер записи: 99
06-06-2006 дата публикации

Method for transitioning between Ziegler-Natta and metallocene catalysts in a bulk loop reactor for the production of polypropylene

Номер: US7056991B2
Автор: David Attoe, David Rauscher, Kai Hortmann, Kevin McGovern, Michel Daumerie, Michel Messiaen, Renaud Oreins, Ronald Tharappel, William Gauthier
Принадлежит: Fina Technology Inc

The present invention relates to propylene polymerization process in a bulk loop reactor, and particularly to propylene polymerization process for polymerizing commercial quantities of polypropylene in a bulk loop reactor by sequentially introducing Ziegler-Natta and metallocene catalyst systems into the bulk loop reactor.

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Номер записи: 100