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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.
27-06-2023 дата публикации

Beneficiation method for recovering tungsten, tin and sulfur from polymetallic tungsten ore tailings

Номер: CN116328952A
Автор: HAN HAISHENG, FU JUNHAO, SUN WEI, ZENG LIQIANG, DENG CHAOZHENG, NI YANG, ZHANG ZHIFENG
Принадлежит:

The invention discloses a beneficiation method for recovering tungsten, tin and sulfur from polymetallic tungsten ore tailings. The multi-metal tungsten ore tailings are subjected to size mixing, then a metal ion-hydroximic acid complex serves as a collecting agent, a composition of aluminum sulfate, water glass and sodium fluosilicate serves as an inhibitor, bulk flotation is conducted, and tungsten-tin-sulfur bulk concentrate is obtained; the tungsten-tin-sulfur bulk concentrate is subjected to reverse flotation desulfurization with oxalic acid as an activating agent, xanthate as a collecting agent and single water glass as an inhibitor, reverse flotation concentrate is sulfur concentrate, and tailings are tungsten-tin bulk concentrate. According to the method, based on bulk flotation, sulphide ore, tungsten ore and cassiterite in the polymetallic tungsten ore tailings are preliminarily co-enriched, then the sulphide ore is independently used as sulphide ore concentrate to be efficiently ...

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Номер записи: 1
04-04-2023 дата публикации

Method for purifying starch wastewater

Номер: CN115893604A
Автор: HAN HAISHENG, DENG CHAOZHENG, FU JUNHAO, ZENG LIQIANG
Принадлежит:

The invention discloses a method for purifying starch wastewater, and belongs to the technical field of organic wastewater treatment. The method comprises the following steps: adding metal ions with more than two valence into starch wastewater, uniformly stirring, adjusting the pH value of the starch wastewater to be neutral or alkaline to promote a reaction to obtain a metal-starch complex solution, adding a magnetic seed into the metal-starch complex solution, and stirring to obtain a suspension containing magnetic floccules; and settling the suspension containing the magnetic floccules in a magnetic field. According to the method, efficient settling separation of the organic matter in the starch wastewater is achieved by combining metal ion coordination regulation with a magnetic agglomeration separation technical means, operation is easy, the treatment efficiency is high, the purification effect is good, cost is low, and industrial application is facilitated.

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Номер записи: 2
18-08-2023 дата публикации

Magnetism-flotation combined tungsten-tin split-flow beneficiation method

Номер: CN116603635A
Автор: HAN HAISHENG, FU JUNHAO, SUN WEI, ZENG LIQIANG, WANG YUFENG, NI YANG, DENG CHAOZHENG, LU QIANQIAN, ZHANG ZHIFENG
Принадлежит:

The invention discloses a magnetic-flotation combined tungsten-tin split-flow beneficiation method which comprises the following steps: sequentially carrying out crushing, ore grinding, iron removal and magnetic separation on tungsten-tin polymetallic ore to obtain a non-magnetic product and a magnetic product; after the non-magnetic product is desulfurized, tungsten flotation is carried out with a metal ion complex with weak hydrophobicity as a collecting agent, salinized water glass as an inhibitor and 2 # oil as a foaming agent, and tungsten concentrate is obtained; the magnetic product is subjected to tin flotation with a metal ion complex with high hydrophobicity as a collecting agent and sodium fluosilicate as an inhibitor, and tin concentrate is obtained; according to the method, the WO3 recovery rate of 85% or above and the Sn recovery rate of 60% or above can be achieved, the method has the advantages of being short in process, convenient to operate, low in labor intensity, low ...

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Номер записи: 3