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 19. Отображено 19.
01-08-2023 дата публикации

Process for producing epichlorohydrin by using micro-interface reaction

Номер: CN116514741A
Автор: SUN SHUNPING, LI JIANJUN, ZHANG MENG, LUO HANJIN, RUI TING, ZHOU SHIPENG, MA ZHENG
Принадлежит:

The invention belongs to the technical field of heterocyclic compound preparation, and particularly relates to a process for producing epichlorohydrin by utilizing a micro-interface reaction. The process comprises the following steps: liquid-phase chloropropene and hydrogen peroxide are mixed and then enter a tubular fixed bed reactor loaded with a rare earth modified titanium silicalite molecular sieve, and gas-phase chloropropene is crushed into micron-sized bubbles through a micro-interface generator and then enters the tubular fixed bed reactor; in the fixed bed reactor, the liquid-phase chloropropene and the gas-phase chloropropene are subjected to an epoxidation reaction with hydrogen peroxide to generate a material containing epoxy chloropropane and water; feeding the material into a three-phase separator to realize three-phase separation of a gas phase, an oil phase and a water phase; the oil phase sequentially enters a light component removal rectifying tower and a heavy component ...

Подробнее
Номер записи: 1
07-01-2015 дата публикации

Method for preparing hydrochloric acid (by-product) through hydrochloric acid tail gas absorption in chloroacetic acid production process

Номер: CN104258690A
Автор: ZHANG JINZHI, ZHAO BING, ZHANG MENG, SUN SHUNPING, JIANG ZHENGLIANG, DONG QINGTAO, DONG QIANG, LI CHAO, ZHANG SHUCHEN, HOU ZHEN, GENG YAOCHEN
Принадлежит:

The invention discloses a method for preparing hydrochloric acid (by-product) through hydrochloric acid tail gas absorption in chloroacetic acid production process. The method comprises the steps of absorbing hydrogenated tail gas and absorbing chlorinated tail gas, wherein absorption liquid firstly absorbs hydrogenated tail gas and then absorbs chlorinated tail gas; the absorption liquid is diluted hydrochloric acid solution after hydrogenated tail gas absorption, and the absorption liquid circulates for absorbing the chlorinated tail gas. According to the method, hydrogenated tail gas and chlorinated tail gas enter independent absorption towers respectively, the absorption liquid firstly absorbs the hydrogenated tail gas and then absorbs the chlorinated tail gas, and flows unidirectionally to gradually increase the concentration to obtain the industrial hydrochloric acid with superior quality; the small HCl absorption tower and the main HCl absorption tower adopt graphite falling film ...

Подробнее
Номер записи: 2
24-09-2014 дата публикации

Chloroacetic acid production method capable of reducing acetic anhydride consumption

Номер: CN104058947A
Автор: ZHANG MENG, ZHAO BING, LIU GUOKAI, ZHANG JINZHI, DONG QIANG, SUN SHUNPING, HOU ZHEN, XING WENHUI
Принадлежит:

The invention discloses a chloroacetic acid production method capable of reducing acetic anhydride consumption. The method comprises the following steps: by using acetyl chloride generated by acetic anhydride and HCl as a true catalyst, reacting acetic acid and chlorine to generate chloroacetic acid and HCl, distilling, carrying out catalytic hydrogenation, and carrying out two-step distillation to obtain the high-grade chloroacetic acid. By canceling the hydrolysis reaction and increasing the one-step distillation reaction, the generated acetyl chloride is recovered and reutilized, and the HCl in the chlorination mother solution is distilled off, so that the concentration of the acetyl chloride in the reactor can be ensured without adding too much acetic anhydride, thereby reducing the acetic anhydride consumption, reducing the heavy component generation quantity, enhancing the product yield, lowering the HCl content in the chlorination mother solution and enhancing the hydrogenation reaction ...

Подробнее
Номер записи: 3
25-11-2009 дата публикации

Aluminum alloy lead with lanthanon yttric and preparation method thereof

Номер: CN0101587757A
Автор: YI DANQING, CHEN HAIBING, WANG BIN, SUN SHUNPING, WANG XIANZHOU, ZENG HONGBO, DANQING YI, HAIBING CHEN, BIN WANG, SHUNPING SUN, XIANZHOU WANG, HONGBO ZENG
Принадлежит:

The invention discloses an aluminum alloy lead with lanthanon yttric and preparation method thereof. The specific component and weight percentage of the invention are Si0.5%-0.7%, Mg0.6%-0.9%, Fe 0.1%-0.2%, Y 0.2%-0.8%, Al residue. The preparation method is following: preparing the elements according to the alloy design to prepare aluminum alloy wire material via melting, casting, homogenization, extrusion and wire drawing, preparing the cables via winding to obtain the aluminum alloy lead with great intensity and conduction via the electric field time effect heat treatment. The aluminum alloy lead with high intensity of the invention adds the lanthanon yttric to purify the melting body and reduce the silicon quantity in the alloy further enhance the conductive rate of the melting on the one hand; on another hand to thin the crystal grain and enhance intensity of the alloy wire; the generatrix intending intensity is 260MPa and the conductive rate can achieve 57% IACS.

Подробнее
Номер записи: 4
25-08-2023 дата публикации

Glass mold surface coating based on gradient design and preparation method thereof

Номер: CN116641012A
Автор: ZHAO FENGLING, LI XIAOPING, LU YALIN, DUAN LIUYANG, ZHANG YANG, SUN SHUNPING, LIU XIAO
Принадлежит:

The invention relates to the field of material coatings, in particular to a gradient design-based glass mold surface coating and a preparation method thereof.The preparation method comprises the following steps: firstly, polishing and cleaning the surface of a glass mold base material, and preheating the surface of the glass mold base material; the preparation method comprises the following steps of: performing ball-milling mixing on NiCrBSi alloy serving as a main component, ZrSi2 and SiB6 serving as antioxidant components and a mixture of the NiCrBSi alloy, the ZrSi2 and the SiB6 serving as a spraying raw material, performing spray granulation respectively, and finally performing electron beam spraying on the mixture of the NiCrBSi alloy, the ZrSi2 and the SiB6 in four different proportions on the surface of a base material respectively under the action of electron beams according to a ZrSi2 (SiB6) content increasing sequence. The obtained gradient coating is well combined with a base ...

Подробнее
Номер записи: 5
14-05-2014 дата публикации

Diameter-adjustable three-dimensional (3D) printing device for aluminum alloy pipes

Номер: CN103785832A
Автор: LI XIAOPING, WANG HONGJIN, SUN SHUNPING, YI ZHIFEI, ZHU FUXIAN, CANG NINGNING
Принадлежит:

The invention relates to a diameter-adjustable three-dimensional (3D) printing device for aluminum alloy pipes. The diameter-adjustable 3D printing device comprises a transverse center hole adjustment rod, a movable atomizer and a driving motor, wherein the movable atomizer is arranged above the center hole adjustment rod correspondingly. The center hole adjustment rod comprises a matrix pipe, a center screw, a distance adjustment nut and a distance adjustment connection rod, wherein the center screw is coaxially arranged in the matrix pipe, a rotary shaft is coaxially arranged in the center screw, the driving motor drives the rotary shaft to rotate, and the outer diameter of the center hole adjustment rod is adjustable. The diameter-adjustable 3D printing device for the aluminum alloy pipes can print aluminum alloy pipe blanks with center holes, therefore, production cost is reduced, and machining efficiency is increased greatly. The outer diameter of the center hole adjustment rod is ...

Подробнее
Номер записи: 6
04-03-2015 дата публикации

Chloroacetic acid production method and chlorination reactor

Номер: CN104387258A
Автор: SUN SHUNPING, ZHAO BING, ZHANG MENG, ZHANG JINZHI, CHEN TAO, JIANG ZHENGLIANG, DONG QINGTAO, DONG QIANG, LI CHAO, ZHANG SHUCHEN, HOU ZHEN, GENG YAOCHEN
Принадлежит:

The invention provides a chloroacetic acid production method and a chlorination reactor. The chloroacetic acid production method comprises the following steps: primarily mixing acetic acid, liquid chlorine and acetic anhydride according to a ratio, feeding a mixture obtained from the former step into the chlorination reactor, keeping a certain reaction temperature and a certain reaction pressure, completing chlorination reaction in a gravity field of 100-1000g, and performing separation purification on the product by using a continuous method production process after the reaction is completed, thereby obtaining a product finally. The chlorination reactor mainly comprises a reaction kettle, a cooling half-tube, a supergravity bucket, a driving motor and a mixer. By adopting the chloroacetic acid production method and the chlorination reactor provided by the invention, the macroscopic and microcosmic distribution of components in a reaction system can be improved, the side effect is reduced ...

Подробнее
Номер записи: 7
10-06-2015 дата публикации

Method for improving recrystallization temperature of spray-formed 7xxx-series aluminum alloy by adding microelement Sc

Номер: CN104694802A
Автор: WANG HONGJIN, LI XIAOPING, SUN SHUNPING, YU YUN, YI ZHIFEI
Принадлежит:

The invention discloses a method for improving a recrystallization temperature of a spray-formed 7xxx-series aluminum alloy by adding a microelement Sc. A 7xxx-series aluminum alloy deposit ingot blank containing the microelement Sc is prepared by a spray forming technology under the atmosphere of a protective gas. The method comprises the following steps: putting the 7xxx-series aluminum alloy deposit ingot blank containing the microelement Sc into a hot extrusion die with a certain inner cavity shape; and carrying out densified hot extrusion, so as to obtain an aluminum alloy part which corresponds to the inner cavity shape of the hot extrusion die. According to the method disclosed by the invention, the recrystallization phenomenon which is easily generated by the spray-formed 7xxx-series aluminum alloy in hot machining and thermal treatment processes is avoided; the trend of fine grain coarsening is effectively reduced; and the technological process is simple.

Подробнее
Номер записи: 8
27-05-2015 дата публикации

Production method of chloroacetic acid and method for recovering catalysts in production process of chloroacetic acid

Номер: CN104649887A
Автор: ZHANG JINZHI, ZHAO BING, ZHANG MENG, YUAN SITONG, SUN SHUNPING, DONG QIANG, GENG YAOCHEN, QU ZHIHUA, JIANG ZHENGLIANG, DONG QINGTAO, XU KE, ZHANG SHUCHEN, XING WENHUI
Принадлежит:

The invention provides a production method of chloroacetic acid and a method for recovering catalysts in a production process of chloroacetic acid. The method for recovering the catalyst comprises the step that gas evaporated from chlorination reaction mother liquor in a distillation process is subjected to three stages of condensation processes, wherein a condensate generated in the first-stage condensation process flows back to the distillation process, and condensates generated in the second-stage and the third-stage condensation processes flow back to the chlorination reaction process. With the adoption of the production method and the method, actual catalysts such as acetyl chloride and chloroacetyl chloride in the production process of chloroacetic acid can be recovered almost completely, a recovery rate of HCl can be increased, and the production cost can be saved.

Подробнее
Номер записи: 9
30-04-2014 дата публикации

Three-dimensional printing device for metal blank with center hole

Номер: CN103752829A
Автор: LI XIAOPING, ZHU FUXIAN, WANG HONGJIN, JIN YUHONG, SUN SHUNPING, QIAN XU
Принадлежит:

The invention relates to a three-dimensional printing device for a metal blank with a center hole. The three-dimensional printing device comprises a printing box, an atomizer, a deposition base body and a center hole adjusting rod. The deposition base body is fixed inside the printing box, the atomizer is fixed on the printing box and corresponds to the deposition base body, the center hole adjusting rod is fixed in the center of the deposition base body and is perpendicular to the deposition base body, and the external diameter of the center hole adjusting rod is adjustable. The three-dimensional printing device for the metal blank with the center hole can print the metal blank with the center hole, production cost is reduced, and machining efficiency is greatly improved. Due to the fact that the external diameter of the center hole adjusting rod is adjustable, and the position of the center hole adjusting rod is adjustable, metal blanks with center holes which are provided with different ...

Подробнее
Номер записи: 10
07-05-2014 дата публикации

3D (three-dimensional) printing metal melt conveying device

Номер: CN103769588A
Автор: LI XIAOPING, SUN SHUNPING, WANG HONGJIN, YANG ZHENXING, WANG JIANGTAO
Принадлежит:

The invention relates to a 3D (three-dimensional) printing metal melt conveying device, which comprises a furnace body, a sealing furnace cover, an air pressure device, a discharging pipe, a graphite melt conveying pipe and an atomizer, wherein the sealing furnace cover is arranged on the furnace body in a covering way, the air pressure device is communicated with an inner cavity of the furnace body through an air inlet pipe, a heating body is arranged on the inner wall of the furnace body, the graphite melt conveying pipe is arranged outside the furnace body and is communicated with the discharging pipe arranged in the furnace body, the discharging pipe extends into the bottom of the furnace body, and the output end of the graphite melt conveying pipe is communicated with an inner cavity of the atomizer. The 3D printing metal melt conveying device has the advantages that the air pressure is adopted for conveying the metal melt into the atomizer, one atomizer is omitted, the blockage of ...

Подробнее
Номер записи: 11
21-04-2023 дата публикации

Method for co-production of glycine and ammonium chloride

Номер: CN115991657A
Автор: SUN SHUNPING, LI XIFENG, JIA HAIPENG, ZHANG JIAYU, WANG ZIMING, MA ZHENG
Принадлежит:

The invention belongs to the technical field of chemical synthesis, and particularly relates to a co-production method of glycine and ammonium chloride. The method comprises the following steps: dissolving chloroacetic acid and urotropine in water, introducing ammonia gas to carry out ammoniation reaction, cooling and crystallizing, carrying out first solid-liquid separation to obtain mixed crystals and a mixed reaction solution, and returning the mixed reaction solution to the ammoniation reaction to be recycled; adding the mixed crystal into a saturated ammonium chloride solution for dissolving, and carrying out secondary solid-liquid separation to obtain an ammonium chloride product and a mixed solution; after the mixed solution is heated, methanol is added for alcohol precipitation, and an alcohol precipitation material is obtained; carrying out third solid-liquid separation on the alcohol precipitation material to obtain a product glycine and a mixed separation solution; and distilling ...

Подробнее
Номер записи: 12
18-02-2015 дата публикации

Confined vortex flow reactor and application thereof to preparation process of Me-SAPO-34 molecular sieve

Номер: CN104353404A
Автор: CHEN TAO, WEI HAORAN, SUN SHUNPING, LI XIAOFANG, LI LIN, SHI JING, LU FENG
Принадлежит:

The invention inventively provides a confined vortex flow reactor and application thereof to a preparation process of a Me-SAPO-34 molecular sieve. The confined vortex flow reactor comprises a multi-stage reaction channel with the shape similar to an apron, wherein the width of the multi-stage reaction channel decreases continuously or in a stepping way from the top to the bottom; two side surfaces forming the multi-stage reaction channel can move relatively. When the confined vortex flow reactor implements forcible mixing of particles in a molecular level, the time scale is reduced to a millisecond level, so that the Me-SAPO-34 molecular sieve structure with a more regular structure, a smaller size and narrower particle size distribution can be prepared; the confined vortex flow reactor is especially applicable to needs of industrial production of a catalyst.

Подробнее
Номер записи: 13
23-04-2014 дата публикации

Center hole adjusting bar for 3D printing of metal blanks

Номер: CN103737003A
Автор: LI XIAOPING, SUN SHUNPING, JIN YUHONG, WANG HONGJIN, QIAN XU
Принадлежит:

The invention relates to a center hole adjusting bar for 3D printing of metal blanks. The center hole adjusting bar for 3D printing of metal blanks comprises a central tube, a central screw, spacing nuts, and spacing links. The central screw is coaxially disposed in the central tube. A cavity forms between the central screw and the central tube. The spacing nuts are evenly fixed on the central screw from top to bottom. The spacing links are evenly arranged around the spacing nuts. Two ends of each spacing link are fixedly connected to the corresponding spacing nut and the central tube through hinges. The bottom of the central screw is provided with an adjusting bolt whereby the central screw can be adjusted to move up and down along the central tube. After the center hole adjusting bar for 3D printing of metal blanks is mounted on a common 3D printer, the common 3D printer is available for printing metal blanks having a center hole; production cost is reduced and machining efficiency is ...

Подробнее
Номер записи: 14
28-09-2011 дата публикации

Aluminum alloy lead with lanthanon yttric and preparation method thereof

Номер: CN0101587757B
Автор: YI DANQING, CHEN HAIBING, WANG BIN, SUN SHUNPING, WANG XIANZHOU, ZENG HONGBO, DANQING YI, HAIBING CHEN, BIN WANG, SHUNPING SUN, XIANZHOU WANG, HONGBO ZENG
Принадлежит:

The invention discloses an aluminum alloy lead with lanthanon yttric and preparation method thereof. The specific component and weight percentage of the invention are Si0.5%-0.7%, Mg0.6%-0.9%, Fe 0.1%-0.2%, Y 0.2%-0.8%, Al residue. The preparation method is following: preparing the elements according to the alloy design to prepare aluminum alloy wire material via melting, casting, homogenization,extrusion and wire drawing, preparing the cables via winding to obtain the aluminum alloy lead with great intensity and conduction via the electric field time effect heat treatment. The aluminum alloylead with high intensity of the invention adds the lanthanon yttric to purify the melting body and reduce the silicon quantity in the alloy further enhance the conductive rate of the melting on the one hand; on another hand to thin the crystal grain and enhance intensity of the alloy wire; the generatrix intending intensity is 260MPa and the conductive rate can achieve 57% IACS.

Подробнее
Номер записи: 15
22-10-2014 дата публикации

Mobile scar eliminating method of adipic acid crystallizer

Номер: CN104107818A
Автор: AI XIAOXIN, YUAN WEN, ZHANG FENGYANG, WANG LIN, ZHANG MENG, CHEN SHUNHANG, ZHANG JINZHI, DONG QIANG, JIANG YU, SUN SHUNPING
Принадлежит:

The invention provides a mobile scar eliminating method of an adipic acid crystallizer. The specific process of the mobile scar elimination comprises the steps of starting movably eliminating scars at a time T0 before the scar elimination is started, wherein the pressure of all crystallizing chambers is P0, i.e. corresponding crystallizing pressure of N chambers; raising the pressure to P1 from P0 at constant speed by a pressure regulating value during the time [delta]T, and raising the temperature of materials in the crystallizing chambers in a balanced way; enabling solution in a part of chambers to achieve an unsaturated state by keeping the pressure P1 for a period of time; gradually dissolving crystal scars; recovering to initial operation from the time T1, wherein the initial operation is the crystallization of N chambers; reducing the pressure to P0 from P1 at constant speed during the time [delta] T, and finishing scar elimination at the time T0+[delta]T. According to the method ...

Подробнее
Номер записи: 16
23-04-2014 дата публикации

Metallic 3D (three-dimensional) printing atomization device

Номер: CN103737001A
Автор: LI XIAOPING, LEI WEINING, WANG HONGJIN, SUN SHUNPING, YI ZHIFEI
Принадлежит:

The invention relates to a metallic 3D (three-dimensional) printing atomization device which comprises a graphite melt delivery pipe used for delivering liquid metal, an atomizer used for conically diverging the liquid metal and a heating insulation pipe. The graphite melt delivery pipe is arranged in the heating insulation pipe, connected with a gas pressure device and communicated with the inside of the atomizer. The metallic 3D printing atomization device feeds the liquid metal by gas pressure, one atomizer is omitted, consumption of high-pressure gas is reduced, production cost is lowered greatly, blockage of the atomizer cannot be caused, and quality of obtained products is good.

Подробнее
Номер записи: 17
14-05-2014 дата публикации

Multi-sprayer three-dimensional (3D) printing device for aluminum alloy plates

Номер: CN103785833A
Автор: LI XIAOPING, SUN SHUNPING, WANG HONGJIN, YI ZHIFEI, QIAN XU
Принадлежит:

The invention relates to a multi-sprayer three-dimensional (3D) printing device for aluminum alloy plates. The multi-sprayer 3D printing device comprises a material winding mechanism, a belt wheel, a transmission belt, a plate rotation mechanism, a plurality of atomizers and a gas heater, wherein the material winding mechanism and the plate rotation mechanism are arranged on two sides of the belt wheel, the transmission belt on the belt wheel receives aluminum matrix plates on the material winding mechanism and transmits the aluminum matrix plates to the plate rotation mechanism, the gas heater is arranged between the material winding mechanism and the belt wheel, and all the atomizers are arranged above the transmission belt evenly. The multi-sprayer 3D printing device for the aluminum alloy plates adopts a plurality of sprayers to perform spray on the aluminum matrix plates to form the aluminum alloy plates, the aluminum alloy plates different in dimensions can be machined according to ...

Подробнее
Номер записи: 18
16-07-2014 дата публикации

Chloroacetic acid chlorination mother solution treatment method

Номер: CN103922916A
Автор: ZHANG MENG, ZHAO BING, WANG GUOLIANG, ZHANG JINZHI, DONG QIANG, SUN SHUNPING, ZHANG SHUCHEN, YANG JINSONG
Принадлежит:

The invention discloses a chloroacetic acid chlorination mother solution treatment method, comprising the following steps of heating a chlorination mother solution through a heater; delivering the heated chlorination mother solution and water into a hydrolysis reactor respectively, and evaporating a part of acetyl chloride; reacting the other part of acetyl chloride with water; delivering the hydrolyzed chlorination mother solution into a secondary hydrolysis reactor, and performing flash evaporation to separate HCL out; pumping the mother solution subjected to the flash evaporation into a hydrogenation reactor through a pump, reacting in the presence of a catalyst, delivering HCL after reacting into an absorption device, and performing a distillation or crystallization process on the mother solution. The method has the advantages that acetyl chloride in the chlorination mother solution is recycled, so that the consumption of acetic anhydride in production is finally reduced, the HCL content ...

Подробнее
Номер записи: 19