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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 3. Отображено 3.
27-05-2015 дата публикации

Method for producing high-activity iron powder through waste industrial iron cement

Номер: CN104646680A
Автор: WU ZONGBIN, CHENG HONGKUI, XU MIN, WANG YING, LIU XIANG
Принадлежит:

The invention discloses a method for producing high-activity iron powder through waste industrial iron cement. The method comprises the steps of washing and drying waste industrial iron cement; mixing with a certain quantity of modifiers; reducing for a certain time through reducing gas; cooling through inert gas to obtain the high-activity iron powder. The high-activity iron powder can be used as a reducing agent to be applied to the field of fine chemical synthesis. According to the method, the simple process is adopted to achieve the utilization of the waste industrial iron cement; the process is green and environmentally friendly; in addition, the consumption of first resources in production of high-activity reducing iron powder can be saved, and thus the social and economic values are certainly increased.

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Номер записи: 1
18-06-2014 дата публикации

Preparation method of nickel-based hydrogenation catalyst

Номер: CN103861596A
Автор: XU MIN, WANG YING, WU ZONGBIN, LIU XIANG, CHENG HONGKUI, ZHANG GUANGMING
Принадлежит:

The invention discloses a preparation method of a nickel-based hydrogenation catalyst. The method comprises the steps: dissolving a soluble salt of an active component nickel and a soluble salt of an auxiliary agent in water, and preparing a mixed aqueous solution of nickel and the auxiliary agent; and then adding the mixed aqueous solution and a soluble salt of a precipitation agent into a reaction kettle in a parallel flow mode, until the reaction kettle temperature reaches a certain temperature, adding a carrier, keeping reaction for a period of time, thus obtaining a catalyst precursor, carrying out deionized water washing, organic solvent washing, drying and reduction of the precursor to obtain the nickel-based catalyst, and carrying out oil sealing or water sealing of the catalyst after the reduction to form the stable catalyst. The catalyst is used for hydrogenation of plant oils and fats, animal oils and fats and waste oils and fats and the like to prepare hydrogenated oils and ...

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Номер записи: 2
23-06-2010 дата публикации

Method for preparing hydrotalcite material

Номер: CN0101746735A
Автор: CHENG HONGKUI, WANG AIQIN, WANG XIAODONG, ZHANG TAO, ZHAO XIANGYUN, HONGKUI CHENG, AIQIN WANG, XIAODONG WANG, TAO ZHANG, XIANGYUN ZHAO
Принадлежит:

The invention provides a method for preparing a hydrotalcite material, comprising the following steps: (1) mixing a solid divalent metal salt raw material and a trivalent metal salt raw material in a ratio of 2 to 1-4 to 1 of molar ratio of materials, and fully grinding; (2) mixing carbonate of 1-4 times of the quantity of trivalent metal salt matters and alkali of 2-3 times of the quantity of all metal ion matters, and fully grinding; (3) adding the mixture of the carbonate and the alkali in a metal salt mixture in multiple times, grinding following adding, and then fully grinding for more than 40 minutes; (4) putting a ground sample in a water bath of 65 DEG C for constant temperature for 12 hours, then washing the obtained solid product with deionized water, and drying to obtain a hydrotalcite material. The hydrotalcite material prepared by the method has the advantages of good quality, no dephasing measure, simple process, practicality, high yield, low cost, and the like.

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Номер записи: 3