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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Применить Всего найдено 3. Отображено 3.
18-04-2023 дата публикации

Preparation method of anion-cation interworking lepidolite collecting agent

Номер: CN115970907A
Автор: LUO REN, DIAO HUALI, LIU DA, ZHOU YINGHONG
Принадлежит:

The invention discloses a preparation method of an anion-cation matching type lepidolite collecting agent. The preparation method comprises the following steps: step 1, dissolving; step 2, saponification; step 3, stirring; step 4, carrying out solid-liquid separation; wherein in the first step, primary amine and industrial ethanol are added into a container according to the mass ratio of 1: 1 and stirred until the primary amine is completely dissolved, and a colorless primary amine solution is obtained; wherein in the step 2, sodium hydroxide and water are prepared into a sodium hydroxide solution with the mass fraction of 50% in a reaction kettle according to the mass ratio of 1: 1, the sodium hydroxide solution is heated to 60-80 DEG C, industrial oleic acid is slowly added into the reaction kettle for saponification, stirring is carried out in the saponification process, and the reaction kettle is heated to 60-80 DEG C; after adding all oleic acid, keeping the temperature and stirring ...

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Номер записи: 1
15-08-2023 дата публикации

Preparation method of multi-carbon-based sodium benzohydroxamic acid collecting agent

Номер: CN116589381A
Автор: LUO REN, DIAO HUALI, LIU DA, ZHOU YINGHONG, ZHANG XIAOFENG
Принадлежит:

The invention discloses a preparation method of a multi-carbon-group-benzohydroxamic acid sodium collecting agent. The preparation method comprises the following steps that firstly, raw materials are prepared; 2, dissolving the raw materials; 3, mixing the raw materials; step 4, preparing carbon-based sodium benzohydroxamic acid; in the first step, the alcohol is one or a combination of more of ethanol, propanol, butanol, pentanol and methyl isobutyl carbinol; in the first step, sodium hydroxide is sodium hydroxide powder; in the step 2, the reaction kettle is provided with a nitrogen temperature control device; alcohol and carbon disulfide are used as reaction basic raw materials, benzoic acid and hydroxylamine hydrochloride are added, the multi-carbon-base-benzohydroxamic acid sodium collecting agent is obtained through reaction in the alkaline environment, the multi-carbon-base-benzohydroxamic acid sodium collecting agent has the advantages of being simple in production process and high ...

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Номер записи: 2
23-06-2023 дата публикации

Preparation method of sodium cresyl reductive acid

Номер: CN116283692A
Автор: LUO REN, DIAO HUALI, LIU DA, ZHOU YINGHONG
Принадлежит:

The invention discloses a preparation method of sodium cresyl reductive acid. The preparation method comprises the following steps: step 1, preparing raw materials; 2, purifying the raw materials; step 3, preparing a sodium cresol solution; step 4, carrying out reaction treatment; and step 5, screening treatment. Nitrogen is used in cooperation with the kneading machine with an air temperature control circulation system, inert gas protection can be provided for the reaction of a sodium cresylate solution and carbon disulfide, and due to the characteristic that nitrogen is not prone to reacting with other substances, cresyl reducing acid sodium and active gas in air can be prevented from being subjected to a chemical reaction, so that the purity of the product is improved. By means of the inert performance of the nitrogen, the cresol-based reducing acid sodium has the advantages of being stable in property, convenient to transport and use and low in price, the problems that the collecting ...

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Номер записи: 3