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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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Применить Всего найдено 3. Отображено 3.
26-05-2023 дата публикации

Method for screening vein quartz raw materials for preparing high-purity quartz sand with low gas-liquid inclusion

Номер: CN116159665A
Автор: PENG TUANER, ZHANG HAIQI, LIU GUANGXUE, LIU LEI, MA CHI, SHAO WEIHUA, CHANG XUEYONG
Принадлежит:

The invention provides a vein quartz raw material screening method for preparing high-purity quartz sand with low gas-liquid inclusion. The screening method comprises the following steps of selective crushing and dissociation, scrubbing and washing, dehydration and classification, atomization and pesticide application, surface modification, polishing and homogenization, sorting of coarse grains based on machine vision, pre-selection of tailings and discarding, screening of low gas-liquid inclusion particles based on transparency difference, and classification and utilization of different grades of raw material particles. According to the method, the screening of the high-purity quartz raw materials with low gas-liquid inclusion content and the graded utilization of the high-purity quartz raw materials with different transparencies are realized through particle size regulation, surface modification and transparency optimization of the quartz raw materials according to particle transparency ...

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Номер записи: 1
29-09-2010 дата публикации

Phyllosilicate mineral depressor for sulfide ore floatation and preparation method thereof

Номер: CN0101844110A
Автор: XUEYONG CHANG, GUANGXUE LIU, TUANER PENG, WEIHUA SHAO, YANJIAO ZHANG, PING ZHAO, CHANG XUEYONG, LIU GUANGXUE, PENG TUANER, SHAO WEIHUA, ZHANG YANJIAO, ZHAO PING
Принадлежит:

The invention provides a phyllosilicate mineral depressor for sulfide ore floatation and a preparation method thereof. The phyllosilicate mineral depressor for the sulfide ore floatation is prepared from the following components in part by weight: 0 to 20 parts of modified corn starch, 8 to 30 parts of sodium alginate, 1 to 35 parts of carboxymethyl cellulose or polyanionic cellulose or methylenenapadisilate dinaphthalene sulfonate, and 5 to 55 parts of sodium hexametaphosphate. The preparation method comprises the following steps of: selecting the reagents according to types of depressed minerals; adding the reagents in a high-speed mixing granulator in the set ratio for granulation; and drying the obtained grains to obtain the phyllosilicate mineral depressor for the sulfide ore floatation. The product has the characteristics of small dosage, good depression selectivity, low toxicity, and the like. The specific depressor is mainly applied to depressing phyllosilicate minerals such as ...

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Номер записи: 2
18-04-2023 дата публикации

Flotation recovery method for pyrochlore ore containing carbonate and mica

Номер: CN115970875A
Автор: CHANG XUEYONG, MA CHI, GUO BAOWAN, SHAO WEIHUA, LIU GUANGXUE, ZHAO PING
Принадлежит:

The invention provides a flotation recovery method of pyrochlore ore containing carbonate and mica, which comprises the following steps: crushing pyrochlore raw ore, grinding, and carrying out primary magnetic separation to obtain a magnetic product and a non-magnetic product; the non-magnetic products are subjected to grading operation, coarse-grained minerals are obtained and subjected to gravity separation operation, heavy minerals are obtained, fine-grained minerals are subjected to desliming, and underflow products are obtained; combining the heavy minerals with the underflow product, and carrying out first-stage flotation, first-stage roughing and two-stage scavenging to obtain an in-tank product 3; performing concentration operation on the product 3 in the tank, and then performing roughing twice and scavenging once to obtain a foam product 5; finely selecting the foam product 5 for 3-4 times to obtain a foam product 6 which is pyrochlore concentrate. According to the method, the ...

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Номер записи: 3