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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.
02-05-2023 дата публикации

Method and device for producing potassium fertilizer as byproduct in lithium extraction production of salt lake brine

Номер: CN116040660A
Автор: PEI QIONG, ZHANG HUAXIA, XING MINGHAO, ZHANG YONG, FAN GUOSHUAI, LIN MINGLI
Принадлежит:

The invention relates to the technical field of potash fertilizer production from a potassium-rich salt lake, in particular to a method and a device for producing a byproduct potash fertilizer in lithium extraction production from salt lake brine, and the method comprises the following steps: firstly, removing divalent foreign ions in the brine from the salt lake through a nanofiltration unit to obtain purified unsaturated brine and nanofiltration concentrated water, returning the nanofiltration concentrated water to the salt lake for cyclic utilization, feeding the purified unsaturated brine into a potassium extraction unit, performing dissolution, evaporation concentration and vacuum potassium extraction to obtain a potassium chloride product and potassium-extracted brine, feeding the potassium-extracted brine into an evaporation unit, performing evaporation, crystallization and separation to obtain high-lithium brine and sodium-potassium mixed salt, returning the sodium-potassium mixed ...

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Номер записи: 1
30-05-2023 дата публикации

Efficient and environment-friendly method and device for extracting lithium from salt lake

Номер: CN116177574A
Автор: PEI QIONG, ZHANG JINTAO, ZHANG KE, ZHANG HUAXIA, XING MINGHAO, LIN MINGLI, SUOLANGDEJI
Принадлежит:

The invention relates to the technical field of salt lake lithium extraction, in particular to an efficient and environment-friendly salt lake lithium extraction method and device, and the process of the method is as follows: brine from a salt lake sequentially passes through a pre-concentration unit, a pretreatment nanofiltration unit, a primary concentration unit, a secondary nanofiltration unit, a secondary concentration unit, an electric carbon lithium precipitation unit, an industrial carbon lithium precipitation unit and a tailing recovery unit; a battery-grade lithium carbonate product, an industrial-grade lithium carbonate product and recyclable heavy metal mixed salt are obtained. According to the production method integrating three-stage concentration, two times of nanofiltration and two-stage lithium precipitation technologies, the lithium extraction requirements of various different types of salt lakes can be met, the energy consumption is low, external chemical agents are not ...

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Номер записи: 2
05-05-2023 дата публикации

Evaporation and concentration device and evaporation and concentration method for recovering sodium carbonate in salt lake lithium extraction

Номер: CN116062823A
Автор: PEI QIONG, ZHANG HUAXIA, XING MINGHAO, SHAO YUSHAN, FAN GUOSHUAI, LIN MINGLI
Принадлежит:

The evaporation and concentration device comprises a box body and a first rotating shaft, the surface of the first rotating shaft is fixedly connected with a supporting plate, the bottom of the box body fixedly communicates with a discharging pipe, a stirring component is arranged on the surface of the supporting plate, and the stirring component comprises a reciprocating defoaming assembly. And the reciprocating defoaming assembly is connected with the second rotating shaft and used for driving the second rotating shaft to vertically move, and the hot gas recycling part is arranged on the surface of the box body, comprises a heat preservation box and is connected with the second rotating shaft. The heating uniformity of sodium carbonate brine is improved, the evaporation and concentration speed is increased, steam generated during evaporation is conveyed to the heat preservation box through the hot gas recycling part, heat preservation is conducted on the box body, heat energy of the steam ...

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Номер записи: 3