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Небесная энциклопедия

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

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

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Применить Всего найдено 4. Отображено 4.
30-09-2009 дата публикации

Method for extracting, distilling and separating glycol dimethyl ether from water

Номер: CN0101544546A
Автор: QIN YISHENG, HA JIAN, WANG WEI, QIN XUDONG, CHEN RONGFU, SONG HONGQIANG, ZHANG YIJUN, ZHU HONGWEI, ZHANG XUEJUN, XIANG JUEYI, JIANG DAZHI, YISHENG QIN, JIAN HA, WEI WANG, XUDONG QIN, RONGFU CHEN, HONGQIANG SONG, YIJUN ZHANG, HONGWEI ZHU, XUEJUN ZHANG, JUEYI XIANG, DAZHI JIANG
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The invention discloses a method for extracting, distilling and separating glycol dimethyl ether from water. The glycol dimethyl ether is extracted and distilled by taking dihydric alcohol or the composition of the dihydric alcohol and inorganic salt as extracting agent in double towers which consist of an extracting and distilling tower and a dehydrating tower, wherein the inorganic salt accounts to 0-20 mass percent of the extracting agent. The method for extracting, distilling and separating glycol dimethyl ether from water can obtain the glycol dimethyl ether with the water content of less than 0.1 percent, solves the problems of great product wastage, serious environment pollution, and the like caused by the traditional process for dehydrating the glycol dimethyl ether with anhydrous calcium chloride functioning as desiccant and can be used for industrial production.

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Номер записи: 1
30-09-2009 дата публикации

Method for preparing m-phenylene dimethylamine

Номер: CN0101544570A
Автор: YISHENG QIN, XUDONG QIN, RONGFU CHEN, HONGQIANG SONG, YIJUN ZHANG, HONGWEI ZHU, XUEJUN ZHANG, JUEYI XIANG, DEBAO ZHU, QIWEI DUAN, DAZHI JIANG, QIN YISHENG, QIN XUDONG, CHEN RONGFU, SONG HONGQIANG, ZHANG YIJUN, ZHU HONGWEI, ZHANG XUEJUN, XIANG JUEYI, ZHU DEBAO, DUAN QIWEI, JIANG DAZHI
Принадлежит:

The invention discloses a method for preparing m-phenylene dimethylamine, which takes m-phthalonitrile as the raw material for multiphase hydrogenation. The method for preparing m-phenylene dimethylamine is characterized in that continuous hydrogenation is carried out in a slurry reactor or a catalyst regeneration coupling reactor; the lower part of the catalyst regeneration coupling reactor serves as a catalyst regeneration section, and the upper part serves as a hydrogenation reaction section; the mixture of the m-phthalonitrile and solvent and hydrogen contact with catalyst in a reaction zone for continuous hydrogenation reaction, and reaction solution is separated to obtain a target product; and after the liquid-solid separation, the catalyst returns to a catalyst regeneration zone and is continuously rinsed with the solvent for regeneration under the condition with the hydrogen. The method for preparing m-phenylene dimethylamine realizes the continuous hydrogenation of the m-phthalonitrile ...

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Номер записи: 2
30-09-2009 дата публикации

Amorphous cobalt catalyst for hydrogenation reduction of m-phthalonitrile and method for preparing same

Номер: CN0101543782A
Автор: QIN YISHENG, QIN XUDONG, CHEN RONGFU, SONG HONGQIANG, ZHANG YIJUN, ZHU HONGWEI, ZHANG XUEJUN, XIANG JUEYI, ZHU DEBAO, DUAN QIWEI, JIANG DAZHI, YISHENG QIN, XUDONG QIN, RONGFU CHEN, HONGQIANG SONG, YIJUN ZHANG, HONGWEI ZHU, XUEJUN ZHANG, JUEYI XIANG, DEBAO ZHU, QIWEI DUAN, DAZHI JIANG
Принадлежит:

The invention discloses an amorphous cobalt catalyst for the hydrogenation reduction of m-phthalonitrile, which is characterized by comprising the following metallic elements by the weight percent, 60-95 of Co, 0-20 of Fe or 0-10 of one or more of such metallic elements as Cr, Ni or Mo and 0.5-30 of aluminum. In an X-ray diffraction pattern of the amorphous cobalt catalyst, only one diffusion maximum exists at an angle of 44-46 degrees in a range with 2 theta being 20-80 degrees. The amorphous cobalt catalyst has the advantages of high hydrogenation activity and m-phthalonitrile yield. The invention also discloses a method for preparing the amorphous cobalt catalyst.

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Номер записи: 3
16-09-2009 дата публикации

Ammonia reclaiming technology in process of preparing m-dicyanobenzene by using ammonia oxidation method

Номер: CN0101531380A
Автор: QIN YISHENG, LU WENKUI, CHEN RONGFU, SHI TIANBAO, ZHU DEBAO, QIN XUDONG, JIANG DAZHI, ZHANG YIJUN, ZHU HONGWEI, XIANG JUEYI, ZHANG XUEJUN, YISHENG QIN, WENKUI LU, RONGFU CHEN, TIANBAO SHI, DEBAO ZHU, XUDONG QIN, DAZHI JIANG, YIJUN ZHANG, HONGWEI ZHU, JUEYI XIANG, XUEJUN ZHANG
Принадлежит:

The invention discloses ammonia reclaiming technology in a process of preparing m-dicyanobenzene by using an ammonia oxidation method. Monoammonium phosphate water solution and excessive ammonia generated in the process of preparing the m-dicyanobenzene by using the ammonia oxidation method react at a temperature of between 50 and 110 DEG C to generate diammonium phosphate, and then the generated diammonium phosphate is decomposed at a temperature of between 150 and 180 DEG C to generate ammonia and monoammonium phosphate, wherein the monoammonium phosphate is directly recycled, and the ammonia is subjected to dehydration treatment and then returned for ammonia oxidation reaction. The concentration of the ammonia in the exhausted gas in the method is less than 100PPm; the reclaiming rate of the ammonia is more than 99.98 percent; and the ammonia reclaiming technology is used in the industrial production of preparing the m-dicyanobenzene by using the ammonia oxidation method, can remarkably ...

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Номер записи: 4