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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 7. Отображено 7.
31-03-2010 дата публикации

Method for separating copper and zinc from copper-zinc bulk concentrate

Номер: CN0101683633A
Автор: LI XUEQIANG, FENG YUHUA, CUI QIUHUA, FENG JINMIN, LI XUELIN, BI FENGLIN, XUEQIANG LI, YUHUA FENG, QIUHUA CUI, JINMIN FENG, XUELIN LI, FENGLIN BI
Принадлежит:

The invention provides a method for separating copper and zinc from a copper-zinc bulk concentrate. The method comprises the following steps: dehydrating the copper-zinc bulk concentrate to obtain a filter cake with a plate and frame type filter press; adding clear water into a buffer slot containing the filter cake to adjust slurry, wherein the ratio of the filter cake to the water is 1:8.5-9; adding zinc sulfate and sodium cyanide into the slurry to inhibit zinc, and stirring for 55 to 65 minutes, wherein the ratio of the dosage of the zinc sulfate to the filter cake is 0.95 to 1.05 percent,and the ratio of the dosage of the sodium cyanide to the filter cake is 0.25 to 0.35 percent; adding Z200, wherein the ratio of the dosage of the Z200 to the filter cake is 0.0025 to 0.0035 percent;and floating in an inflatable agitation flotation machine, wherein the floated concentrate is copper concentrate, and residues in the inflatable agitation flotation machine is zinc concentrate. Therefore ...

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Номер записи: 1
08-09-2010 дата публикации

Technique for removing sulphur ions in pregnant solution and improving grade of gold mud

Номер: CN0101824538A
Автор: QIUHUA CUI, JINMIN FENG, YUHUA FENG, XUEQIANG LI, XUELIN LI, LIANGSHAN LU, CUI QIUHUA, FENG JINMIN, FENG YUHUA, LI XUEQIANG, LI XUELIN, LU LIANGSHAN
Принадлежит:

The invention relates to a technique for removing sulphur ions in pregnant solution and improving the grade of gold mud, which has the advantage of well solving the problem of the influence of the S<2-> ions in the pregnant solution for the grade of the gold mud in the replacement process of the pregnant solution. The method comprises the following steps that: lead salt is added before the replacement of the pregnant solution to generate a certain amount of Pb<2+> ions, and the generated Pb<2+> ions can react with the S<2-> ions in the pregnant solution, thus reducing hazardous anions. The reaction process is as follows: Pb<2+>+S<2->->PbS(sediment), and finally the content of the S<2-> ions in the pregnant solution is reduced to be below 2mg/l. The method is applicable to the cyaniding process of removing the sulphur ions in the pregnant solution before the replacement of the pregnant solution, thus achieving the purpose of improving the grade of the gold mud.

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Номер записи: 2
03-03-2010 дата публикации

Multielement composite recovery process

Номер: CN0101658819A
Автор: LI XUEQIANG, FENG YUHUA, XU ZHONGMIN, CUI QIUHUA, FENG JINMIN, LI XUELIN, XUEQIANG LI, YUHUA FENG, ZHONGMIN XU, QIUHUA CUI, JINMIN FENG, XUELIN LI
Принадлежит:

The invention relates to a multielement composite recovery process, which consists of lead concentrate recovery, copper-zinc concentrate recovery and sulphur concentrate recovery. The main process forfloatation comprises primary crude selection, secondary filtration and secondary fine recovery, and thereby the multielement composite recovery process is simple, has high recovery efficiency, and isparticularly suitable for recovering copper, lead, zinc, sulphur and other valuable elements.

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Номер записи: 3
08-06-2011 дата публикации

Method for increasing replacement recovery rate of gold and silver pregnant solution with arsenic

Номер: CN0101654739B
Автор: XUEQIANG LI, QIUHUA CUI, FENGLIN BI, JINMIN FENG, LIANGSHAN LU, XUELIN LI, LI XUEQIANG, CUI QIUHUA, BI FENGLIN, FENG JINMIN, LU LIANGSHAN, LI XUELIN
Принадлежит:

The invention relates to a method for increasing the replacement recovery rate of gold and silver pregnant solution with arsenic. The method comprises the following steps: placing the pregnant solution with arsenic in a pregnant solution tank, adding sodium carbonate to mix, treating the mixed solution with a dark current pressure filter to remove impurities and obtain purified pregnant solution,then sending the purified pregnant solution into a deoxygenating tower to deoxidize, adding zinc powder in the pregnant solution for replacement, and then using a plate and frame pressure filter to dewater, wherein the filter cake is gold mud and the filtrate is barren liquor. Therefore, the method solves the problem that the replacement recovery rate of the pregnant solution is affected by arsenic; in addition, the method has simple operation and low cost, is easy to use in industrial production and is applicable to the recovery of gold and silver.

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Номер записи: 4
24-02-2010 дата публикации

Method for increasing replacement recovery rate of gold and silver pregnant solution with arsenic

Номер: CN0101654739A
Автор: XUEQIANG LI, QIUHUA CUI, FENGLIN BI, JINMIN FENG, LIANGSHAN LU, XUELIN LI, LI XUEQIANG, CUI QIUHUA, BI FENGLIN, FENG JINMIN, LU LIANGSHAN, LI XUELIN
Принадлежит:

The invention relates to a method for increasing the replacement recovery rate of gold and silver pregnant solution with arsenic. The method comprises the following steps: placing the pregnant solution with arsenic in a pregnant solution tank, adding sodium carbonate to mix, treating the mixed solution with a dark current pressure filter to remove impurities and obtain purified pregnant solution,then sending the purified pregnant solution into a deoxygenating tower to deoxidize, adding zinc powder in the pregnant solution for replacement, and then using a plate and frame pressure filter to dewater, wherein the filter cake is gold mud and the filtrate is barren liquor. Therefore, the method solves the problem that the replacement recovery rate of the pregnant solution is affected by arsenic; in addition, the method has simple operation and low cost, is easy to use in industrial production and is applicable to the recovery of gold and silver.

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Номер записи: 5
24-02-2010 дата публикации

Fine grinding method of gold and silver concentrate

Номер: CN0101653745A
Автор: LI XUEQIANG, FENG YUHUA, CUI QIUHUA, FENG JINMIN, LI XUELIN, BI FENGLIN, XUEQIANG LI, YUHUA FENG, QIUHUA CUI, JINMIN FENG, XUELIN LI, FENGLIN BI
Принадлежит:

A fine grinding method of gold and silver concentrate comprises one-stage grinding and secondary stage grinding processes and forms a classification system in close circuit of grinding. Therefore, theclassification efficiency is high, the particles are uniform, the grinding cost is low, the treatment capacity is large and the fine grinding method of gold and silver concentrate is especially applicable to the cyanation grinding production.

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Номер записи: 6
03-03-2010 дата публикации

Wet method gold extraction process

Номер: CN0101660057A
Автор: LI XUEQIANG, CUI QIUHUA, FENG JINMIN, JIANG XUEJIE, ZHOU YANMING, LI XUELIN, XUEQIANG LI, QIUHUA CUI, JINMIN FENG, XUEJIE JIANG, YANMING ZHOU, XUELIN LI
Принадлежит:

The invention relates to a wet method gold extraction process, which consists of silver immersing, gold immersing, gold reduction, silver precipitation, silver displacement and smelting process, therefore, the recovery efficiency is obviously improved, the emitted gases reach the national emission standard, the labor intensity for production is reduced, the production period is shortened and the cost is reduced, and the wet method extraction process is particularly suitable for gold smelting.

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Номер записи: 7