Technology for extracting Gallium metal from lead-zine tail ore slug smelting by extracting-electrolytic method

A technology for metal extraction and electrolysis, which is used in the improvement of process efficiency, photography technology, instruments, etc., can solve problems such as non-recycling and loss, and achieve the effects of environmental protection, low price and reduction of processing costs.

Inactive Publication Date: 2006-05-24
SHAOGUAN HUAWEI INDAL
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  • Abstract
  • Description
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Problems solved by technology

These gallium resources are all lost due to

Method used

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  • Technology for extracting Gallium metal from lead-zine tail ore slug smelting by extracting-electrolytic method

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Embodiment Construction

[0018] See figure 1 This specific embodiment uses lead-zinc smelting tailings in Shaoguan, Guangdong Province as raw materials. The lead-zinc ore produced in Shaoguan is generally accompanied by germanium, indium, and gallium. The final vacuum of pyrometallurgical smelting in lead-zinc smelting Both the slag and the replacement slag of the hydrometallurgical process enrich the germanium, indium, and gallium in the original ore. The general grade reaches: Ge: 0.6-3%, In: 0.2-0.6%, Ga: 0.1-0.4%. These materials are crushed, dried, leached with concentrated hydrochloric acid, and then chlorinated and distilled in a reactor. The distilled gas is collected and condensed into liquid germanium tetroxide. After germanium tetroxide is hydrolyzed, crude germanium dioxide is obtained. Germanium is further processed into metal germanium; after distillation and filtration, the filter cake is a material containing lead, which can be sent to lead refinery for lead smelting. The indium and galliu...

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Abstract

The invention relates to a technology to distil metal gallium by extraction- electrolyze method that adopts lead zinc smelt tailing mine containing gallium as raw material, and TBP and 2-phosphoric acid as extractant. The invention realizes the comprehensive utilization and development for resource and is benefit to environment. It is low cost, simple technology and has notable comprehensive benefits.

Description

【Technical Field】 [0001] The invention relates to a method for extracting metal gallium, in particular to a technology for further extracting metal gallium by using the extraction-electrolysis method in the raffinate after extracting metal indium by using tailings of lead-zinc ore smelting as a raw material. 【Background technique】 [0002] Term explanation: TBP is tributyl phosphate, P204 is 2-[2-ethylhexyl] phosphoric acid. [0003] Gallium is a rare metal, and there are very few single deposits with industrial development value in nature. Its distribution is scattered, and it is mostly associated with non-ferrous metals, iron, coal and other mines. It can only be comprehensively recovered from its by-products in the process of extracting main metals or burning coal. More than 90% of gallium production in the world today comes from aluminum production. In addition to the recovery of gallium in the aluminum smelting industry in my country, there are few reports of gallium recover...

Claims

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Application Information

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IPC IPC(8): C22B58/00C22B3/26C25C1/22
CPCY02P10/20
Inventor 李显奇
Owner SHAOGUAN HUAWEI INDAL
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