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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.
18-07-2023 дата публикации

Method for recovering platinum group metal in waste automobile exhaust catalyst by pyrogenic process and platinum group metal powder

Номер: CN116445725A
Автор: YAN JISEN, WANG MINGHUI, ZHANG LIAO, CHEN YUEHAN, LIU DENGZHUO, CAI GUANGYU, XIE FANG
Принадлежит:

The invention belongs to the field of rare and precious metal smelting, and discloses a method for recovering platinum group metal in a waste automobile exhaust catalyst through a pyrogenic process and platinum group metal powder. The method comprises the following steps: crushing the waste automobile exhaust catalyst to obtain catalyst powder; uniformly mixing the catalyst powder, a trapping agent and a slag former to obtain a mixture; the mixture is subjected to high-temperature smelting, and molten liquid is obtained; introducing mixed gas of hydrogen and magnesium steam into the molten liquid to obtain reduction desulfurization molten liquid, and performing water quenching to obtain cement clinker and iron alloy containing platinum group metal; the iron alloy containing the platinum group metal is subjected to atomization powder making, atomized alloy powder is obtained, acid leaching, filtering and drying treatment are carried out, and the platinum group metal powder is obtained. According ...

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Номер записи: 1
18-07-2023 дата публикации

Cooperative treatment method for fuming lead slag and waste automobile exhaust catalyst

Номер: CN116445716A
Автор: YAN JISEN, WANG MINGHUI, CHEN YUEHAN, LIU DENGZHUO, CAI GUANGYU, XIE FANG
Принадлежит:

The invention belongs to the field of metallurgical waste residue treatment, and discloses a method for co-processing fuming lead slag and a waste automobile exhaust catalyst. Comprising the following steps: crushing the waste automobile exhaust catalyst to obtain catalyst powder; uniformly mixing the catalyst powder with a slag former to obtain a mixed slag system; the slag system and the molten fuming lead slag are stirred and mixed in a vortex mode, mixed gas of hydrogen and magnesium steam is introduced into a vortex stirring system, and reduced desulfurization molten liquid and lead-zinc-containing flue gas are obtained; carrying out water quenching on the reduction desulfurization molten liquid to obtain base glass and an alloy containing platinum group metal; and recovering the lead and zinc-containing flue gas. According to the method, the physical latent heat of the molten fuming lead slag generated in the lead smelting process is fully utilized, the trapping temperature is reduced ...

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Номер записи: 2
07-07-2023 дата публикации

Preparation method of MgV2O4

Номер: CN116395743A
Автор: YAN JISEN, WANG MINGHUI, LIU DENGZHUO, CHEN YUEHAN, CAI GUANGYU, XIE FANG, DOU ZHIHE, ZHANG TINGAN
Принадлежит:

The invention discloses a preparation method of MgV2O4. The preparation method comprises the following steps: (1) carrying out drying treatment on V2O5; (2) uniformly mixing Mg powder, an additive and the dried V2O5 to obtain a mixture; (3) compacting the mixture obtained in the step (2); (4) placing the blank in a reaction container, heating to 600 DEG C according to the heating rate of 15K/min, then stopping heating, and initiating a self-propagating reaction; and (5) carrying out acid pickling on the reacted material, and drying to obtain MgV2O4. Compared with the existing preparation method, the preparation method has the outstanding characteristics of simple process, short period and energy conservation, and is beneficial to large-scale production.

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Номер записи: 3