Настройки

Укажите год
-

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

Подробнее
-

Мониторинг СМИ

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

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 62. Отображено 62.
05-05-2023 дата публикации

Method for preparing alcohol from light gasoline

Номер: CN116063152A
Автор: SHI HUIBING, ZHANG SHIZHONG, ZHANG CHUAN, JIANG HAIYING, ZHAO DEMING, JIA QINGWEI, CAI PENGFEI, SHU HUI, ZHANG FENGQI, WANG YAOWEI, LUAN BO
Принадлежит:

The invention is mainly applied to the field of fine chemicals, and provides a method for generating alcohol by hydration reaction on a fixed bed reactor by using water and olefin in light gasoline components as raw materials and using acidic ion exchange resin as a catalyst. The light gasoline is catalytically cracked gasoline of an oil refinery, the dry point is 30-70 DEG C, the hydration reaction temperature is 20-100 DEG C, the reaction pressure is 0.5-1.0 MPa, and C4, C5 and C6 olefins in the raw materials are respectively subjected to hydration reaction with water to generate corresponding alcohols under the action of a strong acid cation exchange resin catalyst. The raw materials are easily available and no three wastes are generated.

Подробнее
Номер записи: 1
06-07-2016 дата публикации

Aerogenerator blade vortex generator

Номер: CN0205370865U
Автор: WANG YAOWEI, SHEN ZHENHUA, WANG DONG
Принадлежит:

... 本实用新型公开了一种风力发电机叶片涡流发生器，其包括一底座和两镜像对称排列在所述底座上的型面，所述型面具有一凸弧形边、一后掠斜边和一平直边，所述平直边固接在所述底座上，所述平直边前端和所述凸弧形边前端相交形成所述型面的前端，所述平直边后端与所述后掠斜边底端相交形成所述型面的后端底角、所述凸弧形边后端和所述后掠斜边顶端相交形成所述型面的后端顶角。本实用新型的风力发电机叶片涡流发生器产生的漩涡强度大而稳定，可有效提升风力发电机的叶片升力及升阻比。 ...

Подробнее
Номер записи: 2
20-11-2014 дата публикации

CLEANING APPARATUS

Номер: WO2014183376A1
Автор: LIN, Zijin, WANG, Yaowei, TIAN, Yinghua, CHANG, Kuo
Принадлежит:

A cleaning apparatus comprises a dust particle absorbing apparatus (11) and a wiping apparatus (12). The dust particle absorbing apparatus (11) is used for absorbing a foreign matter. The wiping apparatus (12) is used for wiping and cleaning. The dust particle absorbing apparatus (11) and the wiping apparatus (12) are disposed horizontally.

Подробнее
Номер записи: 3
27-08-2021 дата публикации

Puffed microbead firing furnace

Номер: CN214065688U
Автор: WANG YAOWEI, XIAO DECAI, NIU HANXIN, CHENG QI, ZHANG PENG, 王耀伟, 肖德才, 牛汉新, 程琦, 张鹏
Принадлежит: QINGDAO ZHONGKE NASHIDE THERMAL ENERGY TECH CO LTD, QINGDAO ZHONGKE NASHIDE THERMAL ENERGY TECHNOLOGY CO., LTD., 青岛中科纳士德热能科技有限公司

The utility model relates to an expanded microbead firing furnace, which belongs to the field of expanded microbead firing equipment, and comprises a firing furnace body, a feed port and a discharge port are respectively arranged at two ends of the firing furnace body, the firing furnace body is connected with a base through a support frame, and the firing furnace body is arranged obliquely relative to the horizontal plane. The position of the feeding port is higher than that of the discharging port, the firing furnace body is connected with the driving assembly to achieve rotation, the heat preservation assembly is arranged on the periphery of the firing furnace body, a gap is formed between the heat preservation assembly and the firing furnace body, and the combustor is fixedly connected with the heat preservation assembly and communicated with a gas pipeline and a heat exchanger which are arranged outside the heat preservation assembly. The device has the characteristics of good heat ...

Подробнее
Номер записи: 4
26-07-2018 дата публикации

METHOD FOR TREATING PETROCHEMICAL ALKALINE RESIDUE WASTEWATER

Номер: WO2018133356A1
Автор: WU, Yuqiang, LUAN, Bo, WANG, Yaowei
Принадлежит:

Disclosed is a method for treating petrochemical alkaline residue wastewater. The method comprises the following steps: a) adjusting the pH value of the petrochemical alkaline residue wastewater to 7-12, leaving the wastewater to stand, and removing an organic layer to obtain pretreated wastewater; and b) starting a plasma reactor filled with a resin photocatalyst, and introducing the pretreated wastewater into the plasma reactor for treatment in the presence of oxygen to obtain treated wastewater. The method can effectively improve the removal rate of COD from petrochemical alkaline residue wastewater, the whole treatment process is carried out at a normal temperature and pressure, the process is simple, and continuous operation can be realized. The experimental results indicate that the removal rate of COD from petrochemical alkaline residue wastewater of the method is 98% or more.

Подробнее
Номер записи: 5
15-06-2016 дата публикации

Blade vortex generator installs positioner

Номер: CN0205315209U
Автор: WANG YAOWEI, XU GUOQING, LI YONGXIN, FENG HUIHAI
Принадлежит:

... 本实用新型公开了一种叶片涡流发生器安装定位装置，其包括一底板，所述底板一侧为基准边，所述基准边相对的另一侧具有一定位口，所述定位口包括一定位边和一贴合边，所述定位边与所述贴合边的相交点为待安装的涡流发生器的安装定位点，所述定位边与所述基准边的夹角与所述涡流发生器与叶片中心线的夹角相同。本实用新型的叶片涡流发生器安装定位装置通过固定所述基准边和所述定位边的夹角，对涡流发生器的弦向安装位置和安装角度进行定位引导，避免角度测量的繁琐过程，不仅可有效地减少涡流发生器安装时间，而且可有效地提高涡流发生器安装的位置和角度精确性。 ...

Подробнее
Номер записи: 6
25-04-2023 дата публикации

Method for synthesizing aldehyde compound through hydroformylation of 1, 1-disubstituted olefin

Номер: CN116003231A
Автор: WANG YAOWEI, WANG PENG, SHI HUIBING, ZHAO DEMING, FENG BAOLIN, YAN YAOZONG, YANG GUI'AI, ZHANG CHUAN, LI SHOULI, ZHANG FENGQI, LUAN BO
Принадлежит:

The invention provides a method for synthesizing an aldehyde compound by hydroformylation of 1, 1-disubstituted olefin, which comprises the following steps: reacting 1, 1-disubstituted olefin with a reaction solvent in H2 and CO under the action of a catalyst to obtain the aldehyde compound, the catalyst is a transition metal rhodium complex and an organic phosphine ligand. According to the method for synthesizing the aldehyde compound, provided by the invention, by adopting a specific catalytic system, the selectivity of a target product is greatly improved, and meanwhile, the separation and purification steps of the aldehyde compound are simplified; in addition, the substrate of the hydroformylation reaction is excellent in universality and can be suitable for various 1, 1-disubstituted olefin products, and a novel carbonylation conversion method is provided for olefin substrates which are difficult to activate.

Подробнее
Номер записи: 7
07-04-2023 дата публикации

Method for testing low-temperature performance of waterproof asphalt based on creep theory

Номер: CN115931590A
Автор: XIAO KE, ZHAO DU, QI CONG, ZHANG WENHUI, LIU JIANWEI, LUAN BO, WANG YAOWEI
Принадлежит:

The invention relates to a method for evaluating the low-temperature crack resistance of a waterproof asphalt coating based on a creep theory, and belongs to the technical field of asphalt performance test.A bending beam rheometer is used for testing, a constant load is applied to detect the displacement change of asphalt at a low temperature, and the creep stiffness of the asphalt can be calculated through the creep theory; by using the method disclosed by the invention, the stress deformation resistance of the waterproof asphalt when the waterproof asphalt is hardened at the low temperature can be evaluated.

Подробнее
Номер записи: 8
23-06-2023 дата публикации

Method for checking and accepting waterproof asphalt

Номер: CN116296819A
Автор: ZHAO DU, XIAO KE, DONG WENHAO, QI CONG, ZHANG WENHUI, LIU JIANWEI, LUAN BO, WANG YAOWEI
Принадлежит:

The invention relates to the field of asphalt detection, in particular to a waterproof asphalt acceptance method which comprises the following steps: preparing sample asphalt into a dumbbell-shaped test piece; performing constant-temperature freezing treatment on the dumbbell-shaped test piece at a target experimental temperature for a first preset time; performing a tensile fracture test on the dumbbell-shaped test piece subjected to the constant-temperature freezing treatment at the target experimental temperature to obtain tensile fracture parameters; determining the ultimate tensile strain and fracture energy of the sample asphalt according to the tensile fracture parameters; judging whether parameters of the sample asphalt reach the standard or not according to the ultimate tensile strain and the fracture energy; when the parameters of the sample asphalt reach the standard, it is determined that acceptance inspection of the sample asphalt is successful, and a corresponding sampling ...

Подробнее
Номер записи: 9
04-04-2023 дата публикации

Emulsified asphalt for waterproof coating and preparation method thereof

Номер: CN115894963A
Автор: ZHANG HUA, ZHANG HONGJUAN, SUN MEILI, ZHANG WENHUI, XIE QIANG, QI CONG, LIU JIANWEI, LUAN BO, WANG YAOWEI
Принадлежит:

The invention relates to emulsified asphalt for waterproof paint and a preparation method thereof, the emulsified asphalt is composed of liquid soap and asphalt according to a mass ratio of (35-45): (65-55), and the liquid soap comprises 0.1 wt%-1.0 wt% of an emulsifier A, 2.0 wt%-3.0 wt% of an emulsifier B, 0.01 wt%-0.1 wt% of a stabilizer and the balance of water; wherein the emulsifier A is a zwitterionic emulsifier; and the emulsifier B is an anionic slow-breaking emulsifier. Compared with the prior art, the emulsified asphalt for the waterproof coating, provided by the invention, has the advantages of high solid content, extremely low content of residues on a sieve, good system stability and convenience in spraying construction.

Подробнее
Номер записи: 10
15-08-2023 дата публикации

Polyolefin catalyst containing nucleating agent as well as preparation method and application of polyolefin catalyst

Номер: CN116589617A
Автор: LUAN BO, ZHENG WEIPING, DING QIWEI, LIU JINZHANG, YUAN WENBO, WANG YAOWEI
Принадлежит:

The invention provides a composite material containing a nucleating agent. The composite material comprises a carrier; the transition metal halide, the internal electron donor, the nucleating agent and the alpha olefin polymer are compounded on the carrier. The composite material which has a specific structure and a specific combination and contains the nucleating agent also has a core-shell structure and a spherical particle shape with a regular appearance. The composite material provided by the invention is used as a polyolefin catalyst to catalyze olefin polymerization so as to efficiently synthesize high-crystallinity polyolefin, and the polyolefin product is in a good particle form. According to the polyolefin solid catalyst provided by the invention, an alpha olefin polymer is introduced into catalyst particles before a polymer nucleating agent is prepared, so that the strength of the solid catalyst particles is improved, and good particle morphology of a Z-N catalyst is maintained ...

Подробнее
Номер записи: 11
08-08-2023 дата публикации

Low-temperature performance improver for waterproof asphalt, preparation method of low-temperature performance improver and waterproof asphalt

Номер: CN116554699A
Автор: XIE QIANG, QI CONG, ZHANG HONGJUAN, SUN MEILI, ZHANG WENHUI, LUAN BO, WANG YAOWEI, LIU JIANWEI
Принадлежит:

The invention provides a low-temperature performance improver for waterproof asphalt, a preparation method of the low-temperature performance improver and the waterproof asphalt. The low-temperature performance improver for the waterproof asphalt, provided by the invention, comprises the following components in parts by mass: 50-80 parts of vacuum line oil, 1-5 parts of furfural extract oil, 5-20 parts of mineral oil, 5-20 parts of aromatic oil and 5-20 parts of vacuum residue. Certain vacuum linear oil, furfural extract oil, mineral oil, aromatic hydrocarbon oil and vacuum residual oil are matched and blended according to a certain proportion, the component proportion of the waterproof asphalt can be changed, the low-temperature performance of the asphalt can be improved, the stability of the softening point and the needle penetration can be guaranteed, and adverse effects on the softening point and the needle penetration can be avoided.

Подробнее
Номер записи: 12
04-07-2023 дата публикации

Hydrophilic modified polypropylene non-woven fabric as well as preparation method and application thereof

Номер: CN116377652A
Автор: WANG YAOWEI, LI DEWEN, ZHAO MINGLEI, YUAN WENBO, LIU JINZHANG, LUAN BO
Принадлежит:

The invention provides a hydrophilic modified polypropylene non-woven fabric. According to the hydrophilic modified polypropylene non-woven fabric provided by the invention, the grafting rate of the functional monomer is relatively high, and the self-polymerization component of the functional monomer is added, so that the obtained hydrophilic modified polypropylene non-woven fabric has stronger hydrophilicity. Moreover, after the non-reactive inorganic or organic additives are added into the solvent, the mixing is more uniform, the product batch is more stable, and no special requirement on equipment exists. Therefore, compared with a traditional surface treatment method, the hydrophilic effect is more durable.

Подробнее
Номер записи: 13
28-04-2023 дата публикации

Oxygen distribution combustion process system of heating furnace

Номер: CN116026159A
Автор: MA YUNSHENG, SHAO MINGWEN, HAO TAOYUAN, SUN YUNLEI, MA QUANBO, MA QINGLU, ZHANG FENGQI, WANG YAOWEI
Принадлежит:

The invention discloses a heating furnace oxygen distribution combustion process system, and relates to the technical field of industrial heating. The device comprises a mixer for mixing oxygen and gas to be mixed as combustion-supporting gas, a first online analyzer for monitoring the oxygen content in the combustion-supporting gas, an air preheater, an industrial furnace, a fuel device, a second online analyzer for monitoring the oxygen content in flue gas flowing out of the industrial furnace, a cooler and a recovery device, the mixer, the first on-line analyzer, the air preheater and an air inlet of the industrial furnace are connected in sequence, so that airflow passes through the mixer in sequence; the fuel device is connected with the air inlet; and an air outlet of the industrial furnace, the air preheater, the second online analyzer, the cooler and the recovery device are connected in sequence, so that air flows pass through in sequence. According to the system, the combustion ...

Подробнее
Номер записи: 14
25-04-2023 дата публикации

Production method of glutaraldehyde

Номер: CN116003236A
Автор: WANG YAOWEI, WANG QIAN, LI QIZHONG, ZHANG FENGQI, CHEN SHENGYOU, JIN ZHENDONG
Принадлежит:

The invention provides a production method of glutaraldehyde, which comprises the following steps: pretreating cyclopentene, mixing the pretreated cyclopentene with an oxidant and an organic solvent, and reacting under the action of a catalyst to obtain glutaraldehyde, the catalyst is selected from compounds containing tungsten. The tungsten-containing compound is used as the catalyst, so that in the glutaraldehyde preparation process, few three wastes are generated, and the method is more environment-friendly; meanwhile, cyclopentene is oxidized by adopting an oxidizing agent, so that the cost is reduced, impurities are few, and the glutaraldehyde has high yield.

Подробнее
Номер записи: 15
06-06-2023 дата публикации

Duplex stainless steel powder for laser additive manufacturing and method for in-situ laser additive manufacturing of duplex stainless steel

Номер: CN116219295A
Автор: XU LIANYONG, WANG YAOWEI, HAN YONGDIAN, ZHAO LEI
Принадлежит:

The invention discloses duplex stainless steel powder for laser additive manufacturing and a method for in-situ laser additive manufacturing of duplex stainless steel, and belongs to the technical field of duplex stainless steel. Powder alloy elements used for laser powder additive manufacturing of the duplex stainless steel comprise Cr, Ni, Mo, Si, Mn, C, N, O and the balance Fe and inevitable impurities. In-situ laser powder feeding additive manufacturing equipment is adopted for in-situ laser additive manufacturing of the duplex stainless steel. According to the method, it can still be guaranteed that ferrite is converted into austenite at the high cooling rate during laser additive manufacturing, so that the phase proportion of the ferrite and the austenite in the duplex stainless steel is guaranteed, the duplex stainless steel with the ferrite content ranging from 40% to 50% is finally obtained, in-situ additive manufacturing of the duplex stainless steel is achieved, and subsequent ...

Подробнее
Номер записи: 16
04-04-2023 дата публикации

High-viscosity high-elasticity modified asphalt and preparation method thereof

Номер: CN115895286A
Автор: WEI WEI, WANG BEI, QI CONG, ZHANG WENHUI, WANG GUOQING, LI MING, LUAN BO, WANG YAOWEI, LIU JIANWEI
Принадлежит:

The invention relates to high-viscosity and high-elasticity modified asphalt, which is prepared from the following components in parts by weight: 75 to 100 parts of residual oil, 1.5 to 2.5 parts of cosolvent, 4 to 5 parts of polymer modifier, 4 to 6 parts of high-viscosity modifier and 0.2 to 0.4 part of stabilizer. By adding the specific modifier, the 60 DEG C dynamic viscosity of the modified asphalt is greatly improved, the elasticity is recovered, and the long-term use of the asphalt pavement is facilitated; the residual oil and the cosolvent are optimized, and the proper residual oil and cosolvent are selected for preparing the modified asphalt, so that the compatibility between the residual oil and the modifier is improved, the compatibility between the raw materials and the auxiliary materials is improved, and the application performance of the high-viscosity and high-elasticity modified asphalt is improved.

Подробнее
Номер записи: 17
16-05-2023 дата публикации

Method for preparing cyclopentanone by selective oxidation of cyclopentane

Номер: CN116120157A
Автор: WANG YAOWEI, LI SHOULI, ZHAO DEMING, LIU XUAN, SHI HUIBING, WANG QIAN, CAI PENGFEI, JIA QINGWEI, ZHANG FENGQI, LUAN BO
Принадлежит:

The invention provides a method for producing cyclopentanone by selective oxidation of cyclopentane, cyclopentanone is synthesized by a one-step method at a certain temperature and pressure by using cyclopentane as a raw material, a titanium silicalite molecular sieve as a catalyst and hydrogen peroxide as an oxidizing agent, the selectivity of cyclopentanone is greater than or equal to 99%, and the selectivity of cyclopentanone is greater than or equal to 99%. The problems of high yield of three wastes, difficulty in product separation and low selectivity of cyclopentanone in the existing cyclopentanone production process are effectively solved.

Подробнее
Номер записи: 18
28-06-2018 дата публикации

METHOD FOR SEPARATING SOLUBLE ORGANIC MATTERS FROM PETROLEUM COKE

Номер: WO2018113289A1
Автор: MA, Weiwei, HAO, Taoyuan, LUAN, Bo, WANG, Yaowei
Принадлежит:

A method for separating soluble organic matters from petroleum coke. The method comprises the following steps: drying petroleum coke to obtain a pre-processed petroleum coke; and performing stage-by-stage extraction on the pre-processed petroleum coke by using petroleum ether, carbon disulfide, ethyl alcohol, acetone-carbon disulfide mixed liquor and tetrahydrofuran to obtain an extract liquor and processed petroleum coke, the extract liquor comprising soluble organic matters.

Подробнее
Номер записи: 19
05-05-2023 дата публикации

Qualitative method for identifying coal tar contained in crude oil

Номер: CN116068091A
Автор: LU YANJING, LIU JIANLI, ZHAO YANLI, YAN TINGJIANG, NIU XING, WANG YAOWEI, LUAN BO
Принадлежит:

The invention provides a qualitative method for identifying coal tar contained in crude oil, which comprises the following steps: A) heating and distilling an oil product, and recovering a distillate at 160-230 DEG C to obtain the distillate; and B) detecting the content of phenolic compounds in the distillate, if the concentration of the phenolic compounds is greater than or equal to 0.2 mg/mL, determining that the oil product contains coal tar, and if the concentration of the phenolic compounds is greater than 0 and less than 0.2 mg/mL, determining that the oil product does not contain coal tar. In the method for identifying whether the crude oil contains the coal tar, a conventional detection method is adopted to detect whether the crude oil contains components (phenolic substances) in the coal tar in a specific distillation range, and whether the crude oil contains the coal tar is qualitatively judged.

Подробнее
Номер записи: 20
28-04-2023 дата публикации

High-temperature solution polymerization process for copolymerization of ethylene and alpha-olefin

Номер: CN116023572A
Автор: YUAN WENBO, LYU HAIYANG, FU DANDAN, LUAN BO, WANG YAOWEI
Принадлежит:

The invention provides a process for preparing a polyolefin elastomer by copolymerization of ethylene and alpha-olefin, a specific feeding mode is adopted, part of ethylene monomer, alpha-olefin, a solvent and a cocatalyst are mixed in a static mixer and then enter a polymerization reaction kettle together with a catalyst, so that the mass transfer time is prolonged; ethylene is uniformly dispersed and the impurity removal effect is improved, so that the activity of the catalyst is improved; particularly, a tubular reactor and a tank reactor are connected in series, so that the conversion rate of ethylene and alpha-olefin can be effectively increased, and the reaction system is relatively stable; the tubular reactor and the tank reactor are combined, so that the heat exchange area is large, the reaction heat can be better removed, and the reaction is stable. The reactor has the advantages of high catalytic efficiency, avoidance of multi-kettle reaction, large heat exchange area, high conversion ...

Подробнее
Номер записи: 21
18-04-2023 дата публикации

Butyl latex, butyl latex dairy product and preparation method thereof

Номер: CN115975219A
Автор: GAO JIANWEN, LUAN BO, REN XUEBIN, ZHENG HONGBING, WANG YAOWEI, JING SHUAILIN, WANG FEIFEI
Принадлежит:

The invention provides butyl latex. The butyl latex comprises the following components in parts by weight: 10-20 parts of butyl rubber; 0-20 parts by weight of a nanometer reinforcing filler; 1-6.5 parts by weight of an emulsifier; 0.05-1 part by weight of a co-emulsifier; and 0.05-2 parts by weight of a stabilizing agent. Compared with the prior art, the nano filler and the butyl rubber liquid are blended in advance and then emulsified, and meanwhile, the ratio of the emulsifier is optimized, so that not only is the dispersity of the nano filler improved, but also the mixing uniformity between the reinforcing filler and the butyl rubber is improved; according to the present invention, the non-uniform mixing or demulsification phenomenon caused by the later addition of the reinforcing filler is avoided, the reinforcement of the butyl rubber dairy product is achieved, and the lamellar filler is dispersed in the butyl rubber matrix, such that the permeation path of the gas, the virus, the ...

Подробнее
Номер записи: 22
12-05-2023 дата публикации

Catalyst for preparing high-carbon olefin as well as preparation method and application of catalyst

Номер: CN116099554A
Автор: GUO HUFEI, SHI HUIBING, ZHAO DEMING, LI SHOULI, CUI YONG, LIU XUAN, WANG YAOWEI, LUAN BO
Принадлежит:

The invention provides a catalyst for preparing high-carbon olefin and a preparation method and application thereof, in the application method, the oligomerization catalyst is composed of an auxiliary component and a main component, the main component is a specific SO4 < 2->/SiO2/ZrO2/Al2O3 molecular sieve system, and the auxiliary component is a La2O3/SiO2/TiO2/Al2O3 molecular sieve system. The catalyst provided by the invention is suitable for taking mixed C4 obtained after isobutene extraction as a raw material, and a fixed bed reactor is adopted for reaction under certain use conditions; experimental results show that the C4 olefin conversion rate is 70-83%, the C8 olefin selectivity is 45-60%, the C12 olefin selectivity is 30-42%, and the rest component is C16 olefin. The catalyst disclosed by the invention is mainly used for realizing controllable production of olefins with different carbon numbers by deeply analyzing an olefin polymerization reaction mechanism, creatively regulating ...

Подробнее
Номер записи: 23
02-05-2023 дата публикации

Preparation method of mixed tridecanal

Номер: CN116041154A
Автор: WANG YAOWEI, WANG PENG, SHI HUIBING, FENG BAOLIN, YANG GUI'AI, YAN YAOZONG, ZHAO DEMING, ZHANG CHUAN, LI SHOULI, ZHANG FENGQI, LUAN BO
Принадлежит:

The invention relates to the technical field of organic synthesis, in particular to a preparation method of mixed tridecanal. The invention provides a preparation method of mixed tridecanal, which comprises the following steps: under the condition of carbon monoxide and hydrogen, mixing a rhodium catalyst, an organic phosphine oxide ligand, mixed dodecene and a solvent, and reacting to obtain the mixed tridecanal. According to the method, the target product can be efficiently and selectively synthesized by regulating and controlling the catalyst through the organic phosphine oxide ligand, the conversion rate of the substrate and the yield of the product are relatively high, and the method has a good industrial prospect. Meanwhile, compared with a high-pressure cobalt method, the preparation method provided by the invention is relatively mild in condition and easy to operate, and the problems of catalyst deactivation and difficult circulation are avoided.

Подробнее
Номер записи: 24
04-07-2023 дата публикации

Olefin polymerization catalyst and preparation method thereof, and olefin polymerization method

Номер: CN116375911A
Автор: ZHANG QIRUI, XUE HAO, MA YUNSHENG, DONG BO, ZHAO YONGCHEN, WANG YAOWEI, LUAN BO
Принадлежит:

The invention provides an olefin polymerization catalyst and a preparation method thereof, and an olefin polymerization method. According to the catalyst provided by the invention, a main catalyst is prepared from the following raw materials: (1) a titanium compound Ti (OR) m-yXy; (2) an adduct of a magnesium compound MgR < 13 > R < 14 >. F > RoOH. GE. HH < 2 > O; (3) an internal electron donor; wherein the internal electron donors are an internal electron donor a, an internal electron donor b and an internal electron donor c, the internal electron donors a, b and c are compounds with certain structures, and the internal electron donors a, b and c are matched according to a certain proportion to form a catalyst system, and when the catalyst system is used for preparing polyolefin by catalyzing olefin polymerization, the polymerization activity is high, the hydrogen regulation sensitivity is very high, the molecular weight distribution is relatively wide, and the molecular weight distribution ...

Подробнее
Номер записи: 25
05-05-2023 дата публикации

Preparation method of tert-amyl alcohol

Номер: CN116063151A
Автор: SHI HUIBING, JIANG HAIYING, ZHANG CHUAN, ZHANG SHIZHONG, LIU XIAO, ZHAO DEMING, LIU LIHUA, JIA QINGWEI, WANG YAOWEI, LUAN BO
Принадлежит:

The invention provides a preparation method of tert-amyl alcohol. According to the preparation method provided by the invention, the light gasoline is used as a raw material, and the tert-amyl alcohol is obtained through a synthesis reaction by a synthesis device; wherein the synthesis device is described in the following, and the process of the synthesis reaction is described in the following steps S1 to S4. The device is combined with the synthesis process of the steps S1-S4, and more importantly, the operation condition of each tower in the synthesis process is controlled, so that the conversion rate is increased, the product purity is improved, and the water content of the product is reduced. Test results show that according to the preparation method, the conversion rate reaches 60% or above, the product purity reaches 99% or above, and the water content of the product is smaller than 100 ppm.

Подробнее
Номер записи: 26
12-05-2023 дата публикации

Anti-aging high-viscosity modified asphalt and preparation method thereof

Номер: CN116102895A
Автор: JIN PING, LIU JIANWEI, LUAN BO, WANG YAOWEI, QI CONG, ZHANG YONGHAN, LI QIZHONG, LIU JUAN
Принадлежит:

The invention provides anti-aging high-viscosity modified asphalt. The anti-aging high-viscosity modified asphalt is prepared from the following raw materials in parts by weight: 100 parts of petroleum asphalt; 4 to 7 parts by weight of a styrene-butadiene-styrene block copolymer; 3 to 5 parts by weight of a styrene-hydrogenated butadiene-styrene block copolymer; the anti-aging component 1 is 1-4 parts by weight; the anti-aging component 2 is 0.4 to 0.6 part by weight; 0.3 part by weight to 0.7 part by weight of a viscosity reducing component; 2-6 parts by weight of a cosolvent; and 0.2 to 0.4 part by weight of a stabilizing agent. Compared with the prior art, the anti-aging and high-viscosity modified asphalt provided by the invention adopts specific components with specific contents, so that relatively good overall interaction is realized, and the obtained anti-aging and high-viscosity modified asphalt has excellent anti-aging performance and also has other indexes such as viscosity, ...

Подробнее
Номер записи: 27
04-04-2023 дата публикации

Pretreatment method of raw materials in polyolefin polymerization process

Номер: CN115894157A
Автор: ZHAO CHUNCAI, ZHAO YONGCHEN, LI PING, ZHANG CONGHU, DONG QUANWEN, WANG CHANGPENG, YUAN WENBO, WANG YAOWEI, LUAN BO
Принадлежит:

The present invention provides a polyolefin polymerization raw material pretreatment method, which comprises: carrying out dechlorination on a liquid material to obtain a dechlorinated liquid material, and removing water, sulfur, peroxide, a hydroxyl compound and oxygen to obtain a pretreated liquid material; dissolving the solid material in a solvent, and then carrying out the liquid material pretreatment step; the method comprises the following steps: carrying out dechlorination and desulfurization on a gas material, carrying out deoxygenation and hydrodeacetylation processes, removing carbon monoxide, and finally removing water, methanol, oxygen and carbon dioxide to obtain a pretreated gas material. The pretreatment method provided by the invention is a systematic, comprehensive and efficient method and can be used for pretreating solid, liquid and gas-state materials, the purity of the pretreated materials can reach technical index regulations, meanwhile, the catalyst consumption in ...

Подробнее
Номер записи: 28
09-05-2023 дата публикации

Method for preparing C6 aldehyde through direct hydroformylation of light gasoline

Номер: CN116082132A
Автор: SHI HUIBING, YAN YAOZONG, YANG GUI'AI, FENG BAOLIN, WANG PENG, ZHAO DEMING, NIU XING, ZHANG FENGQI, WANG YAOWEI, LUAN BO
Принадлежит:

The invention provides a method for preparing C6 aldehyde by direct hydroformylation of light gasoline, which comprises the following steps: mixing a solvent, a metal element-containing catalyst, a ligand and light gasoline in a mass ratio of (0-95): (5-100) to obtain a reaction solution; and introducing a mixed gas of CO and H2 into the reaction liquid, and reacting to obtain C6 aldehyde. According to the method provided by the invention, olefin in the light gasoline is fully utilized to prepare C6 aldehyde, the additional value of the light gasoline is improved, and meanwhile, the technical scheme is simple in process flow and low in equipment investment and energy consumption.

Подробнее
Номер записи: 29
14-07-2023 дата публикации

Method for measuring grafting rate of polyolefin graft

Номер: CN116429722A
Автор: LI DEWEN, YANG XIUZHEN, MA YUNSHENG, YUAN WENBO, ZHAO MINGLEI, LUAN BO, WANG YAOWEI
Принадлежит:

The invention belongs to the field of chemical analysis, and particularly relates to a method for measuring the grafting rate of a polyolefin graft, which comprises the following steps of: a) obtaining a working curve: carrying out chemical grafting reaction on a grafting monomer and polyolefin in a solvent in the presence of an initiator, calculating the grafting rate of the polyolefin graft according to the quantitative relationship between the reactant and the product before and after the reaction; performing infrared spectroscopic analysis on the polyolefin graft to obtain an analysis result; further obtaining a series of polyolefin grafts prepared from grafting monomers and polyolefin in different proportions, and corresponding grafting rates and infrared spectroscopic analysis results; fitting a working curve of a grafting rate-infrared spectroscopic analysis result; and b) carrying out infrared spectroscopic analysis on the polyolefin graft sample to be detected, and obtaining the ...

Подробнее
Номер записи: 30
23-06-2023 дата публикации

Production method and application of low-viscosity building waterproof material asphalt

Номер: CN116286076A
Автор: MA XIANBIAO, QI CONG, LI QIZHONG, CAO HONGXUE, LIU JIANWEI, LUAN BO, WANG YAOWEI
Принадлежит:

The invention relates to a production method and application of low-viscosity building waterproof material asphalt, and the production method comprises the following steps: mixing crude oil and oil slurry according to a set mass ratio, and carrying out atmospheric and vacuum distillation processing by adopting an atmospheric and vacuum distillation process production method to obtain the low-viscosity building waterproof material asphalt. According to the technical scheme, the low-viscosity waterproof material asphalt is produced by adjusting the raw material formula for asphalt production, introducing the oil slurry with a specific proportion and specific parameters into the crude oil and adopting a specific atmospheric and vacuum distillation process, and the low viscosity refers to the low viscosity of the asphalt instead of the low viscosity achieved by adding an additive, so that the waterproof performance of the asphalt is improved. The modified asphalt waterproof coiled material ...

Подробнее
Номер записи: 31
14-07-2023 дата публикации

Supported Ziegler-Natta catalyst as well as preparation method and application thereof

Номер: CN116425904A
Автор: ZHENG WEIPING, DING QIWEI, ZHANG XIAOPENG, ZHAO YONGCHEN, YUAN WENBO, WANG YAOWEI, LUAN BO
Принадлежит:

The invention provides a supported Ziegler-Natta catalyst. The supported Ziegler-Natta catalyst comprises a carrier, transition metal organic halide and/or transition metal halide, an internal electron donor and a nucleating agent, wherein the transition metal organic halide and/or transition metal halide are/is supported on the carrier. Compared with the prior art, the nucleating agent on the surface and in the pores of the supported Ziegler-Natta catalyst provided by the invention can be uniformly dispersed in a reaction system along with the crushing of the catalyst in the olefin polymerization process, so that the uniformity of the reaction system is improved, and a polyolefin material with high crystallization property can be directly obtained after the polymerization is finished; in addition, a better nucleating effect is shown under the lower nucleating agent concentration.

Подробнее
Номер записи: 32
30-05-2023 дата публикации

Preparation method of thermoplastic polyolefin elastomer with high volume resistivity

Номер: CN116178604A
Автор: LI PING, WANG CHANGPENG, ZHAO CHUNCAI, WEI XUDONG, DONG QUANWEN, ZHAO YONGCHEN, YUAN WENBO, WANG YAOWEI, LUAN BO, MA YUNSHENG
Принадлежит:

The invention provides a preparation method of a thermoplastic polyolefin elastomer with high volume resistivity, which comprises the following steps: in the process of preparing the thermoplastic polyolefin elastomer, adsorbing a residual catalyst after a polymerization reaction is completed, and then carrying out flash evaporation to obtain the thermoplastic polyolefin elastomer with high volume resistivity. According to the method, the volume resistivity is controlled by representing the relation between the ash content and the volume resistivity and further controlling the ash content, the problem of current leakage of the photovoltaic module is solved, and the overall progress of the photovoltaic industry in China is improved.

Подробнее
Номер записи: 33
25-08-2023 дата публикации

Production method and production device of dimethyl sulfoxide

Номер: CN116640075A
Автор: SHI HUIBING, LI SHOULI, ZHAO DEMING, CUI YONG, XU JINFENG, CHEN SHENGYOU, ZHAO MINGQING, ZHANG SHUPING, ZHANG FENGQI, WANG YAOWEI, LIU KAI, LUAN BO
Принадлежит:

The invention provides a production method and a production device of dimethyl sulfoxide. The production method comprises the following steps: mixing dimethyl sulfide and hydrogen peroxide according to a molar ratio of 1: (0.7-1.0) at 30-40 DEG C, and carrying out pre-reaction; and reacting the obtained mixed solution in a tubular reactor at 20-28 DEG C to control the selectivity of the product, thereby obtaining the dimethyl sulfoxide. According to the production method provided by the invention, a solvent and a catalyst are not needed, serial operation of a plurality of reactors is not needed, the steps are simpler and more convenient, the equipment investment cost of a production device is lower, and research shows that by adopting the production method provided by the invention, the conversion rate of hydrogen peroxide can reach 99% or above, and the selectivity of dimethyl sulfoxide can reach 99% or above.

Подробнее
Номер записи: 34
21-07-2023 дата публикации

Bidentate phosphite ester polymer, preparation method and application thereof, and olefin carbonyl synthesis reaction method

Номер: CN116462801A
Автор: SHI HUIBING, FENG BAOLIN, YAN YAOZONG, YANG GUI'AI, ZHAO DEMING, ZHANG FENGQI, WANG YAOWEI
Принадлежит:

The invention provides a bidentate phosphite polymer, a preparation method and application thereof, and an olefin carbonyl synthesis reaction method. The bidentate phosphite ester polymer provided by the invention is shown as a formula (I), is formed by copolymerizing a specific bidentate phosphite ester ligand and 2-vinyl naphthalene, can be used for catalyzing an olefin carbonyl synthesis reaction, not only ensures the catalytic performance of the olefin carbonyl synthesis reaction, but also can improve the solvent swelling resistance of the polymer, so that the service life of the polymer is prolonged, and the service life of the polymer is prolonged. Therefore, the form stability of the catalyst is ensured, and the stable production of alkene oxo-synthesized aldehydes is further facilitated.

Подробнее
Номер записи: 35
15-08-2023 дата публикации

Coupling method for synthesizing low-carbon olefin bifunctional catalyst through CO2 hydrogenation and application of coupling method

Номер: CN116586104A
Автор: SHI HUIBING, GAO PENG, WANG DONGCHAO, BU XIANNI, LI SHUANG, YANG CHENGGUANG, CHEN CHEN, ZHAO DEMING, WANG GUANYA, ZHANG FENGQI, WANG YAOWEI, LUAN BO
Принадлежит:

The invention provides a method for synthesizing a low-carbon olefin bifunctional catalyst through CO2 hydrogenation, which comprises the following steps: A) tabletting composite oxide powder, molding, crushing and screening to obtain an oxide; the composite oxide powder is one or more of ZnO (zinc oxide), ZrO2 (zirconium oxide), In2O3 (indium oxide) and ZrO2 (zirconium oxide); the molecular sieve powder is subjected to tabletting forming, crushing and screening, and molecular sieve particles are obtained; b) physically mixing the oxide and the molecular sieve particles to obtain a mixed material; and C) tabletting, molding, crushing and screening the mixed material to obtain the product. The method provided by the invention comprises molding, screening and secondary molding processes of oxides and molecular sieves. The bifunctional catalyst obtained by the secondary forming coupling method is excellent in activity, high in stability and high in target product selectivity, the selectivity ...

Подробнее
Номер записи: 36
23-06-2023 дата публикации

Technological method for treating VOCs (Volatile Organic Chemicals) in standard reaching manner and

Номер: CN116272235A
Автор: NIU XING, ZHAO YAN, GAO XUEKUN, LI ZHENHUA, GUO MINGYAN, LUAN BO, WANG YAOWEI
Принадлежит:

The invention relates to a process method for VOCs standard treatment and carbon reduction. Collected waste gas is conveyed to an oil gas recovery facility through an induced draft fan to be pretreated; the concentration of the oil gas pretreated by the oil gas recovery facility is less than 25% LEL; pretreated oil gas is introduced into an inlet of a heating furnace air blower through a conveying fan; pretreated oil gas is introduced into a heating furnace through a heating furnace air blower to be incinerated. According to the technical scheme, an existing heating furnace is fully utilized to replace a traditional waste gas incinerator to co-treat VOCs waste gas, the VOCs waste gas is stably discharged in a standard reaching mode, energy of each C atom is completely absorbed, the maximum resource utilization value of the heating furnace, waste gas recycling and the minimum project investment cost are truly achieved, no newly-added carbon dioxide emission is generated, and the energy-saving ...

Подробнее
Номер записи: 37
22-08-2023 дата публикации

Combined high-voltage electrostatic demisting system

Номер: CN116618178A
Автор: WANG YAOWEI, LIU JIAJIA, LIU KAI, ZHAO MINGQING, ZHANG LIANG, ZHENG FEI, ZHANG LEI, YANG XIAOQING, ZHANG XUEQUN
Принадлежит:

The invention discloses a combined high-voltage electrostatic demisting system, which relates to the technical field of chemical engineering and environmental protection, and comprises a washing tower, a primary electrostatic demister for primary removal of acid mist in flue gas, a secondary electrostatic demister for secondary removal of acid mist in flue gas, and a circulating pump, the washing tower and the first-stage electrostatic demister are of an integrated structure, the washing tower is located below the first-stage electrostatic demister, flue gas sequentially flows through the washing tower, the first-stage electrostatic demister and the second-stage electrostatic demister to be discharged outwards, flushing fluid of the first-stage electrostatic demister and flushing fluid of the second-stage electrostatic demister both flow into the washing tower, and flushing fluid of the first-stage electrostatic demister and flushing fluid of the second-stage electrostatic demister flow ...

Подробнее
Номер записи: 38
16-05-2023 дата публикации

Evaluation method for representing low-temperature performance of waterproof asphalt based on dynamic thermal analysis method

Номер: CN116124822A
Автор: XIAO KE, ZHAO DU, QI CONG, ZHANG WENHUI, LIU JIANWEI, LUAN BO, WANG YAOWEI
Принадлежит:

The invention relates to an evaluation method for representing low-temperature performance of waterproof asphalt based on a dynamic thermal analysis method, which comprises the following steps: selecting waterproof asphalt to be detected, and preparing a sample; freezing the prepared sample in a refrigerator until the sample is hardened and is in a non-flowing state; fixing and placing the hardened sample in a clamp groove of a detection instrument by using a clamp; and performing a dynamic thermal analysis test according to the determined test parameters. According to the technical scheme, the dynamic thermal mechanical analyzer is used for testing, the dynamic force is applied to detect the viscoelastic parameter change of the asphalt along with the temperature change, and the glass-transition temperature point is used for reflecting the transition temperature of the asphalt from the glass material to the viscoelastic material, so that the low-temperature performance change trend of the ...

Подробнее
Номер записи: 39
04-07-2023 дата публикации

Waterproof asphalt as well as preparation method and application thereof

Номер: CN116376305A
Автор: MA XIANBIAO, QI CONG, LI QIZHONG, CAO HONGXUE, LIU JUAN, LIU JIANWEI, LUAN BO, WANG YAOWEI
Принадлежит:

The invention provides waterproof asphalt as well as a preparation method and application thereof. The waterproof asphalt comprises aromatic hydrocarbon oil and coal-to-oil asphalt. Wherein the mass ratio of the aromatic hydrocarbon oil to the coal-to-oil asphalt is 1: (0.8-1.5); the softening point of the coal-to-oil asphalt is not less than 80 DEG C and the ash content is not more than 15%. The aromatic hydrocarbon oil which has good compatibility with the coal-to-oil asphalt and has high solubility is used as the blending softening oil, so that the prepared waterproof asphalt has a relatively high softening point and proper needle penetration. When the waterproof asphalt is used for preparing a waterproof coiled material, compared with a waterproof coiled material prepared from asphalt with the same softening point, the waterproof asphalt provided by the invention has the advantages that the low-temperature flexibility limit of the waterproof coiled material can be reduced by 2 DEG C ...

Подробнее
Номер записи: 40
23-06-2023 дата публикации

Doughening agent for modified asphalt as well as preparation method and application of ductility agent

Номер: CN116285000A
Автор: LI MING, QI CONG, WANG BEI, WEI WEI, WANG GUOQING, LUAN BO, WANG YAOWEI, LIU JIANWEI, ZHANG WENHUI
Принадлежит:

The invention relates to a ductility improver for modified asphalt as well as a preparation method and application thereof. The ductility improver for modified asphalt comprises the following components in percentage by mass: 75-96% of waste bio-oil, 3-20% of petroleum resin and 1-5% of dioctyl adipate (DOA). According to the technical scheme, the waste bio-oil contains part of natural antioxidants, two or more kinds of waste bio-oil are adopted, besides enough oxidation resistance is kept, the waste bio-oil, the C5 petroleum resin and the DOA can generate crosslinking reaction, the performance of the ductility increasing agent is improved, the C5 petroleum resin has good anti-aging performance and has good compatibility with SBS and DOA, and the C5 petroleum resin has good anti-aging performance and good compatibility with the SBS and the DOA. The three components have a synergistic effect, so that the compatibility of the matrix asphalt and the modifier is enhanced, the low-temperature ...

Подробнее
Номер записи: 41
18-04-2023 дата публикации

Chemically modified anti-aging asphalt and preparation method thereof

Номер: CN115975389A
Автор: QI CONG, ZHANG HONGJUAN, ZHANG WENHUI, LUAN BO, LIU JIANWEI, WANG YAOWEI
Принадлежит:

The invention provides chemically modified anti-aging asphalt. The chemically modified anti-aging asphalt consists of asphalt and a cerium oxide doped phosphorus pentoxide chemical modifier, the mass percent of each raw material is as follows: 99.1%-99.7% of asphalt; and 0.3%-0.9% of a cerium oxide doped phosphorus pentoxide chemical modifier. Compared with the prior art, the chemically modified anti-aging asphalt provided by the invention adopts specific components with specific contents to realize relatively good overall interaction, and particularly through cerium oxide doping, the surface charge distribution of phosphorus pentoxide is more uniform, the number of active centers of phosphorus pentoxide is increased, and the service life of the asphalt is prolonged. The reaction capacity of phosphorus pentoxide and asphalt is effectively improved, active sites prone to oxidative polycondensation in the asphalt are reduced, the composition structure of the asphalt is improved, the high ...

Подробнее
Номер записи: 42
11-07-2023 дата публикации

Catalyst for preparing olefin from naphtha as well as preparation method and application of catalyst

Номер: CN116408137A
Автор: CHEN XIAOBO, ZHANG XINYANG, LI YUE, JIANG HAIYING, REN DELUN, LI ZE, LIU YIBIN, SHI HUIBING, YAN HAO, YANG CHAOHE, ZHAO DEMING, ZHANG FENGQI, WANG YAOWEI
Принадлежит:

The invention belongs to the technical field of catalysts, and particularly discloses a catalyst for preparing olefin from naphtha. The catalyst comprises, by weight, 20-60% of a carrier, 20-60% of a molecular sieve, 0.5-20% of a metal active component and 10-30% of a binder, and the metal active component comprises a dehydrogenation metal active component, an auxiliary metal active component and a metal oxide. The molecular sieve is an HZSM-5 molecular sieve, the dehydrogenation metal active component is one or more of Zn, Ni, Co and Ga, the auxiliary metal active component is one or more of Fe and Ce, and the metal oxide component is one or more of CaO and MgO. The invention also discloses a preparation method and application of the catalyst. The catalyst provided by the invention can effectively inhibit the generation of methane while catalytically cracking naphtha to increase the yield of low-carbon olefins.

Подробнее
Номер записи: 43
23-05-2023 дата публикации

Heat removal method and heat removal system for reaction of preparing alpha-olefin through selective polymerization of ethylene

Номер: CN116143576A
Автор: YUE RUIYING, LIU PENG, LYU XILIN, ZHAO YONGCHEN, WEI XUGUANG, ZHANG XIAOYANG, ZHANG MENG, FENG QILONG, WANG YAOWEI, LUAN BO
Принадлежит:

The invention provides a heat removal process and a heat removal system for a reaction for preparing alpha-olefin through selective polymerization of ethylene. A process for preparing alpha-olefin through selective polymerization of ethylene has the characteristic of remarkable economic benefit, but the process reaction is a strong exothermic reaction, and effective removal of reaction heat is the key and difficult point of the process. According to the method, ethylene selective polymerization heat is withdrawn by combining low-temperature feeding and gas-phase external circulation of raw materials, ethylene and butane solvents are cooled and uniformly mixed to enter a reaction kettle for reaction, a large amount of butane is entrained by gas-phase external circulation of ethylene, and butane flows back to the reaction kettle for cooling when encountering cold; and meanwhile, the residual gas phase sequentially passes through a recycle gas compressor, a recycle gas cooler and a gas-liquid ...

Подробнее
Номер записи: 44
02-06-2023 дата публикации

Catalyst system for preparing 1-octene and 1-hexene through alternate continuous reaction of trimerization and tetramerization of ethylene and preparation method

Номер: CN116196982A
Автор: MA YUNSHENG, FENG QILONG, DONG QUANWEN, LIU PENG, ZHANG MENG, LYU XILIN, WEI XUGUANG, LUAN BO, WANG YAOWEI
Принадлежит:

The invention provides a dual-catalyst system for preparing 1-octene and 1-hexene through alternate continuous reaction of trimerization and tetramerization of ethylene and a preparation method of the dual-catalyst system. The preparation raw materials of a catalyst adopted in the tetramerization reaction comprise a PNP ligand, a Cr (III)-containing main catalyst and an Al-containing cocatalyst; the catalyst adopted in the trimerization reaction is prepared from the following raw materials: an N-containing ligand, a Cr (III)-containing main catalyst, an Al-containing cocatalyst and a Cl-containing accelerant. The dual-catalytic reaction system is alternately used for trimerization and tetramerization of ethylene, can realize cleaning of a reaction high polymer at high temperature under the condition of continuous reaction, and prolongs the continuous production period to three times of that of the original process; and the product selectivity is high.

Подробнее
Номер записи: 45
04-04-2023 дата публикации

Method for synthesizing aldehydes, alcohols and alkanes through olefin hydroformylation

Номер: CN115894190A
Автор: SHI HUIBING, WANG PENG, FENG BAOLIN, YAN YAOZONG, YANG GUI'AI, ZHAO DEMING, ZHANG CHUAN, LI SHOULI, WANG YAOWEI, ZHANG FENGQI, LUAN BO
Принадлежит:

The invention provides a method for synthesizing aldehydes, alcohols and alkanes through olefin hydroformylation, which comprises the following step of: reacting olefin in CO/H2 under the action of a transition metal cobalt complex, a phosphine ligand and an additive to obtain the product aldehydes, the product alcohols and the product alkanes. According to the synthesis method provided by the invention, the transition metal cobalt complex and the phosphine ligand are used as a catalytic system, and the additive is added to stabilize the reaction system, so that a plurality of high-added-value products are finally synthesized. Results show that the alkane selectivity is 2-21%, the olefin conversion rate is 24-99%, the product aldehyde selectivity is 55-82%, and the product alcohol selectivity is 12-35%; the regioselectivity of the products aldehyde and alcohol is excellent, and straight-chain products are mainly used. Compared with a rhodium catalyst, the strategy is economical and practical ...

Подробнее
Номер записи: 46
25-07-2023 дата публикации

Gas holder system and water seal automatic water cutting device thereof

Номер: CN116480816A
Автор: WANG YAOWEI, LIN TONGTONG, LIU KAI, ZHAO MINGQING, HAN CHENKAI, ZHENG FEI, ZHOU MINGKAI, ZHANG LEI, LI LELE
Принадлежит:

The invention discloses a gas holder system and a water seal automatic water cutting device thereof, the water seal automatic water cutting device comprises a water storage tank, the upper part of the water storage tank is provided with an overflow port, and the lower part of the water storage tank is provided with a water outlet; the first end of the primary blow-off pipe is connected with the drain outlet of the water seal device, the second end of the primary blow-off pipe extends into the water storage tank, the port of the second end of the primary blow-off pipe is lower than the drain outlet, and a primary automatic blow-off valve is arranged on the primary blow-off pipe; the liquid level detection component is used for detecting the liquid level height in the water seal device; and the controller is used for controlling the opening and closing of the primary automatic blow-down valve according to the detection information of the liquid level detection component. According to the ...

Подробнее
Номер записи: 47
23-06-2023 дата публикации

Preparation method of 2-substituted-4, 6-dibromophenol

Номер: CN116283507A
Автор: YAN YAOZONG, YANG GUI'AI, PAN XIAOYAN, FENG BAOLIN, WANG PENG, ZHAO DEMING, SHI HUIBING, ZHANG FENGQI, WANG YAOWEI, LUAN BO
Принадлежит:

The invention provides a preparation method of 2-substituted-4, 6-dibromophenol, which comprises the following steps: S1) reacting 2-substituted phenol as shown in a formula (I) with N-bromosuccinimide in a polar solvent to obtain a reaction solution; s2) evaporating and concentrating the reaction solution until solids are separated out to obtain a concentrated solution, and then adding a non-polar solvent for crystallizing and removing impurities to obtain a solution; and S3) removing the solvent from the solution to obtain the 2-substituted-4, 6-dibromophenol. Compared with the prior art, the method adopts the mild bromination reagent, the synthesis method is simple to operate, the synthesis condition is mild, the product is easy to separate and purify, the solvent can be recycled, the material consumption and energy consumption are low, the three wastes are few, and the method is green and environment-friendly and is suitable for large-scale industrial production.

Подробнее
Номер записи: 48
30-05-2023 дата публикации

Rotary flash drying device and drying heat source supply structure thereof

Номер: CN116182540A
Автор: ZHENG CHUANZHEN, QU CHANGYU, ZHANG HONGWEI, LUAN BO, WANG YAOWEI
Принадлежит:

The invention relates to a rotary flash drying device and a drying heat source supply structure thereof.The drying heat source supply structure comprises a first pipeline, the first end of the first pipeline is connected with an outlet pipeline of a main fan of a catalytic cracking device, and the second end of the first pipeline is connected with an inlet pipeline of a drying chamber of the rotary flash drying device; the first pipeline is sequentially provided with a leading-out valve, an emergency cut-off valve and an air volume adjusting valve in the direction from the first end to the second end, the first pipeline is provided with a flow detection device and a temperature detection device, the leading-out valve is used for controlling connection and disconnection of the first pipeline, and the emergency cut-off valve is used for cutting off the first pipeline when the flow value detected by the flow detection device is lower than a preset flow value. The air volume adjusting valve ...

Подробнее
Номер записи: 49
16-05-2023 дата публикации

Cold extrusion strengthening method for connecting and fastening hole of dissimilar materials and structural part

Номер: CN116121507A
Автор: YAN WUZHU, WANG YAOWEI, LIANG SHUJING
Принадлежит:

The invention relates to a dissimilar material connecting and fastening hole cold extrusion strengthening method, an auxiliary lining assembly and a structural component. The method comprises the steps that a workpiece with a connecting and fastening hole is provided, and the workpiece is provided with at least two layers of plates; providing a first auxiliary bushing and a second auxiliary bushing; a first strengthening rod and a first auxiliary lining are used for conducting cold extrusion strengthening on the part, located on the first layer plate, of the fastening hole; a second reinforcing rod and a second auxiliary lining are used for conducting cold extrusion reinforcing on the part, located on the second layer plate, of the fastening hole; the first auxiliary bushing is provided with a first annular wall, the first annular wall is provided with a first slot, and the inner circumferential surface of the first annular wall has a first taper; the second auxiliary bushing is provided ...

Подробнее
Номер записи: 50
04-07-2023 дата публикации

Preparation method and application of light hydrocarbon cracking catalyst

Номер: CN116371454A
Автор: ZHANG FENGQI, JIANG HAIYING, WANG LONG, GAO TIANYU, LIU RUIYUN, SHI HUIBING, ZHAO DEMING, LIU ZHEN, WANG YAOWEI, LUAN BO
Принадлежит:

The invention provides a preparation method and application of a light hydrocarbon cracking catalyst, and the preparation method comprises the following steps: uniformly mixing deoxidized ionized water, a ZSM-5 molecular sieve with a low silica-alumina ratio and a ZSM-5 molecular sieve with a high silica-alumina ratio to obtain slurry A; mixing deoxidized ionized water, kaolin and aluminum sol, and adding the mixture into the slurry A to obtain slurry B; uniformly mixing the slurry B and pseudo-boehmite to obtain slurry C; acidifying the slurry C to obtain slurry D; mixing the slurry D with a phosphorus precursor to obtain slurry E; the slurry E is subjected to ball milling and granulation, and microsphere particles are obtained; and drying and burning the microsphere particles to obtain the light hydrocarbon cracking catalyst. The compound of the ZSM-5 molecular sieve with the low silica-alumina ratio and the ZSM-5 molecular sieve with the high silica-alumina ratio is adopted, so that ...

Подробнее
Номер записи: 51
28-04-2023 дата публикации

Method for preparing carboxylic acid from isoamylene

Номер: CN116023249A
Автор: SHI HUIBING, WANG PENG, FENG BAOLIN, YANG GUI'AI, YAN YAOZONG, ZHAO DEMING, ZHANG CHUAN, LI SHOULI, WANG YAOWEI, ZHANG FENGQI, LUAN BO
Принадлежит:

The invention provides a method for preparing carboxylic acid from isoamylene, which comprises the following steps: isoamylene and water are subjected to hydrocarboxylation reaction in CO under the action of a catalyst to obtain carboxylic acid, and the catalyst is selected from acid or a combination of acid, a transition metal palladium complex and an organic phosphine ligand. In the process of preparing carboxylic acid from isoamylene, under the condition of acid catalysis, the conversion rate of isoamylene is 90-99%, and the selectivity of the product 2, 2-dimethylbutyric acid is 73-95%; under the catalysis condition of acid/palladium/organic phosphine ligand, the conversion rate of isopentene is 32-99%, and the selectivity of the product 3-methylvaleric acid is 25-95%. Compared with the existing reported multi-step synthesis method, the method has the advantages that the required high-added-value chemicals can be obtained by a one-step method; the separation and purification steps are ...

Подробнее
Номер записи: 52
23-06-2023 дата публикации

Modified polyolefin and preparation method thereof

Номер: CN116284576A
Автор: YUAN WENBO, LI DEWEN, LIU JINZHANG, LUAN BO, WANG YAOWEI
Принадлежит:

The invention belongs to the field of high polymer materials, and particularly relates to modified polyolefin and a preparation method thereof. The preparation method provided by the invention comprises the following steps: mixing polyolefin, functional molecules, an initiator and a solvent, carrying out a reaction under pressurization and heating conditions, and after the reaction is carried out for a period of time, carrying out pressure relief and flash evaporation; and after one or more cycles of pressurizing and heating reaction and pressure relief flash evaporation are completed, the modified polyolefin is obtained. According to the preparation method provided by the invention, system concentration is carried out through a flash evaporation process, so that the reaction rate is accelerated; meanwhile, flashed fractions can be used as solvents repeatedly, so that the problem that the solvents are difficult to recycle is solved; in addition, the modification reaction process of the ...

Подробнее
Номер записи: 53
16-05-2023 дата публикации

Preparation method for rapidly synthesizing ZSM-5 molecular sieve by using inducer

Номер: CN116119681A
Автор: REN DELUN, CHEN XIAOBO, JIANG HAIYING, LIU YIBIN, SHI HUIBING, YANG CHAOHE, XU TING, ZHANG XINGONG, ZHANG FENGQI, WANG YAOWEI
Принадлежит:

The preparation method of the ZSM-5 molecular sieve comprises the following steps: mixing an alkali source solution with a template agent to form a mixed solution A; adding the acidic aluminum source solution B into the mixed solution A to form a mixed solution C; adding a silicon source into the mixed solution C for mixing to obtain a mixture D; mixing the mixture D with an inducer, and crystallizing for 2-3 days at the temperature of 150-170 DEG C; and crystallizing to obtain a solid substance, and washing, drying and roasting the solid substance to obtain the lamellar ZSM-5 molecular sieve. And an inducer is added for preparing ZSM-5, so that the synthesis time for preparing the lamellar ZSM-5 molecular sieve is greatly shortened.

Подробнее
Номер записи: 54
27-08-2021 дата публикации

Kiln for sintering thermal insulation board

Номер: CN214065695U
Автор: XIAO DECAI, WANG YAOWEI, NIU HANXIN, CHENG QI, ZHAO CHEN, 肖德才, 王耀伟, 牛汉新, 程琦, 赵臣
Принадлежит: QINGDAO ZHONGKE NASHIDE THERMAL ENERGY TECH CO LTD, QINGDAO ZHONGKE NASHIDE THERMAL ENERGY TECHNOLOGY CO., LTD., 青岛中科纳士德热能科技有限公司

The utility model relates to a kiln for sintering thermal insulation boards, which belongs to the field of kilns and comprises a kiln wall and a kiln top which are of an integral structure, a thermal insulation interlayer is arranged outside the kiln wall and the kiln top, a plurality of processing sections are sequentially arranged along the length direction of the kiln, and fans are arranged on the processing sections. An exhaust pipeline communicated with the interior of the kiln is arranged on the upper portion of the kiln top, the draught fan is communicated with the exhaust pipeline, a plurality of observation holes are formed in the kiln walls at intervals and used for observing conditions in the kiln, curved seals and sand seal assemblies are arranged on the kiln walls on the two sides, and the curved seals and the sand seal assemblies are arranged in the length direction of the kiln. The sealing device is matched with a kiln car loaded with products to be fired to seal the kiln ...

Подробнее
Номер записи: 55
23-06-2023 дата публикации

Coating material of waterproof coiled material, preparation method and application

Номер: CN116285688A
Автор: ZHANG HONGJUAN, QI CONG, SUN MEILI, XIE QIANG, ZHANG WENHUI, LIU JIANWEI, WANG YAOWEI, LUAN BO
Принадлежит:

The invention provides a coating material of a waterproof coiled material as well as a preparation method and application thereof. The coating material of the waterproof coiled material is prepared from the following components in parts by weight: 62-66 parts of special asphalt, 3-5 parts of SBS (Styrene Butadiene Styrene), 4-7 parts of SBR (Styrene Butadiene Rubber), 0.2-0.35 part of functional additive and 20.65-26.8 parts of inorganic filler, and the special asphalt is petroleum asphalt produced by adopting a distillation process of naphthenic base crude oil and paraffin base crude oil. Compared with the prior art, the technical scheme uses special asphalt, particularly naphthenic crude oil and paraffin-based crude oil are used according to a specific proportion and are subjected to atmospheric distillation, so that the softening point and the penetration degree of the asphalt obtained within the temperature range are better than those of the asphalt obtained only by adopting the naphthenic ...

Подробнее
Номер записи: 56
02-05-2023 дата публикации

Electret master batch and preparation method thereof

Номер: CN116041858A
Автор: WANG YAOWEI, LANG XIANZHONG, YUAN WENBO, CHAI XIAOFEI, ZHAO MINGLEI, ZHAO YONGCHEN
Принадлежит:

The invention provides an electret master batch. The electret master batch comprises polypropylene resin, a main electret agent, a nanoparticle auxiliary electret agent, a compatilizer, a coupling agent, a powder pretreatment agent, a flexibilizer, a lubricant and an antioxidant. The invention also provides a preparation method of the electret master batch. According to the electret master batch provided by the invention, stearate and a synergistic component are compounded to serve as a main electret agent, inorganic nanoparticles serve as a synergistic auxiliary electret agent, and a novel electret agent system is introduced, so that the mask melt-blown cloth simultaneously obtains excellent performance of high filtering efficiency and low air resistance; by introducing the powder pretreating agent, dust pollution of the inorganic nanoparticles in the blending process is avoided, the dispersion effect is improved, and meanwhile the adding amount of the nano inorganic powder can be increased ...

Подробнее
Номер записи: 57
28-04-2023 дата публикации

Construction method of separated prefabricated small box girder steel wedge-shaped block

Номер: CN116024901A
Автор: WANG CHUANJIE, LEI TING, WANG YAOWEI, LI ZHEYI, MEI MIN
Принадлежит:

The invention is applicable to the field of box girder construction, and provides a construction method of a separated prefabricated small box girder steel wedge block, which comprises the following steps of: placing a pre-embedded steel plate on the center of a corresponding support on a girder manufacturing pedestal while performing steel bar construction on a prefabricated small box girder, and welding and fixing the pre-embedded steel bar and the pre-embedded steel plate; selecting matched steel wedge-shaped blocks according to the gradient of longitudinal and transverse slopes of the prefabricated small box girder, and welding and fixing the steel wedge-shaped blocks and the pre-embedded steel plates; when the prefabricated small box girder is erected, after the center point of the steel wedge-shaped block is aligned with the center of the support cushion stone and the center of the support above the cover beam, installation can be completed. According to the invention, after the separation ...

Подробнее
Номер записи: 58
05-05-2023 дата публикации

High-efficiency catalyst ligand for selective trimerization of ethylene, and preparation method, catalyst system and application thereof

Номер: CN116063217A
Автор: FENG QILONG, LIU PENG, LYU XILIN, ZHANG MENG, WEI XUGUANG, YUE RUIYING, LUAN BO, ZHAO YONGCHEN, WANG YAOWEI
Принадлежит:

The invention provides a catalyst ligand for preparing 1-hexene through ethylene trimerization. The catalyst ligand contains a chlorine tripyrrole functional group; the catalyst ligand has a structural formula as shown in a formula A and/or a formula B. The chlorine-containing tripyrrole ligand compound provided by the invention not only has the function of a ligand, but also has the function of an accelerant. A trimerization catalytic system is improved based on the ligand, and an original four-component system of a main catalyst, an auxiliary catalyst, the ligand and an accelerant is simplified into a three-component system, so that the preparation of the catalytic system is simpler and more convenient, and meanwhile, the catalytic activity of trimerization is also remarkably improved and can reach 760kg/g (Cr). H to the maximum. Due to high activity and high selectivity of the catalytic system at high temperature, the reaction can be operated for a long period, and the catalyst has obvious ...

Подробнее
Номер записи: 59
23-06-2023 дата публикации

Preparation method of alpha, beta-unsaturated carboxylic ester

Номер: CN116283575A
Автор: WANG PENG, SHI HUIBING, YANG GUI'AI, YAN YAOZONG, ZHANG CHUAN, FENG BAOLIN, ZHAO DEMING, SUN BIN, LI SHOULI, WANG YAOWEI, ZHANG FENGQI, LUAN BO
Принадлежит:

The invention relates to the technical field of organic synthesis, in particular to a preparation method of alpha, beta-unsaturated carboxylic ester, which comprises the following steps: under the condition of carbon monoxide, mixing a ruthenium catalyst, an organic nitrogen ligand, a 1, 2-propadiene compound and an alcohol compound, and reacting to obtain the alpha, beta-unsaturated carboxylic ester. According to the method, the alpha, beta-unsaturated carboxylic ester is efficiently prepared through the hydrogen esterification reaction of the 1, 2-propadiene compound, the target product can be efficiently and highly selectively synthesized through the regulation and control effect of the organic nitrogen ligand on the ruthenium catalyst, and the method has a good industrialization prospect; meanwhile, in the preparation method provided by the invention, reaction conditions are relatively mild, excellent conversion of the substrate can be realized at a relatively low reaction temperature ...

Подробнее
Номер записи: 60
04-07-2023 дата публикации

Method for flexibly producing cyclopentanone and cyclopentanol

Номер: CN116375561A
Автор: LI SHOULI, SHI HUIBING, GUO HUFEI, ZHAO DEMING, LIU LIHUA, ZHANG FENGQI, LIU XIAO, WANG YAOWEI, LUAN BO
Принадлежит:

The invention provides a method for co-producing cyclopentanone and cyclopentanol by selective oxidation of cyclopentane, which adopts a titanium silicalite molecular sieve as a catalyst and hydrogen peroxide as an oxidant, realizes co-production of cyclopentanone and cyclopentanol by a one-step method at 70-100 DEG C, and can realize regulation and control of a ketone-alcohol molar ratio from 5: 1 to 16: 1 by adjusting process parameters. A production enterprise can adjust the product proportion in time according to the market condition of the product, and the anti-risk ability of the enterprise to deal with market fluctuation is improved.

Подробнее
Номер записи: 61
18-08-2023 дата публикации

Stirring paddle and stirring kettle

Номер: CN116603419A
Автор: ZHANG FENGQI, LI DEWEN, ZHANG QIONG, DING QIWEI, YUAN WENBO, WANG YAOWEI, LUAN BO
Принадлежит:

The invention discloses a stirring paddle which is arranged in a stirring kettle and comprises a stirring paddle body, a stirring shaft and a filter screen, the stirring paddle body is connected with the stirring shaft, the filter screen is arranged at the top of the stirring shaft and is perpendicular to the stirring shaft, and the stirring paddle body and the filter screen rotate along with the stirring shaft. During use, the stirring shaft drives the stirring paddle body and the filter screen to rotate, airflow is generated in the stirring kettle and carries a large amount of powder, the powder in the airflow is filtered by the filter screen arranged at the top of the stirring shaft and stays in the stirring kettle, and then the airflow enters the air outlet pipeline of the stirring kettle and enters downstream equipment (a buffer tank) through the air outlet pipeline. As the sectional area of the stirring kettle is large, the area of the filter screen is correspondingly enlarged, the ...

Подробнее
Номер записи: 62