Antimony ore extraction process

Project Background

A native element, antimony metal is extracted primarily from stibnite, which contains 72 percent antimony and 28 percent sulfur.

Antimony ore extraction process

Description of antimony ore

A native element, antimony metal is extracted primarily from stibnite, which contains 72 percent antimony and 28 percent sulfur. Stibnite is mined in only a few countries, with China being its largest producer. Antimony is used for many technological and industrial purposes.

Antimony is used as a hardening alloy for lead, especially storage batteries and cable sheaths, also used in bearing metal, type metal, solder, collapsible tubes and foil, sheet and pipes, and semiconductor technology. Stibnite is used for metal antifriction alloys, metal type, shot, batteries, and in the manufacture of fireworks. Antimony salts are used in the rubber and textile industries, in medicine, and glassmaking.

Relation to Mining

Antimony rarely occurs in its native metallic form in nature. It easily combines with other elements, usually including sulfur, to form over 100 different minerals. Of these minerals, only stibnite (Sb2S3) is mined commercially as a source for metallic antimony. Antimony is found in trace amounts in silver, copper and lead ores, and it is usually economically possible, as well as environmentally desirable, to extract the antimony from these ores when they are smelted.

Most of the antimony mined each year comes from China, which supplies over three-quarters of the world’s total. The remainder is from Russia, South Africa, Tajikistan, Bolivia, and a few other countries, including the United States. Some antimony is produced as a by-product of smelting ores of other metals, mainly gold, copper and silver, in countries such as the United States, Canada, and Australia.

Important amounts of antimony are yielded as a by-product of copper and silver mining. Numerous stibnite deposits occur in Idaho, Montana and Nevada. Recycling of old lead-acid batteries contributes to U.S. antimony production.

Antimon Ore Processing Line

Proportion of antimony ore is far greater than proportion of gangue, so it will be separated by using the method gravity separation. This method has many features, high efficiency, energy saving, and environment protection, which can make the low-grade ore enrichment advance. After gravity separation, the antimony will be purified by floatation. So the processing method of SBM is gravity separation-flotation process.

This production line is of compact and reasonable structure, lower investment, convenient maintenance and wide application range, which is used in a variety of stone crushing and ore crushing. It is the best choice for projects in primary and medium scale.

Antimony Mineral Processing

Proportion of antimony ore is far greater than proportion of gangue, so it will be separated by using the method gravity separation. This method has many features, high efficiency, energy saving, and environment protection, which can make the low-grade ore enrichment advance. After gravity separation, the antimony will be purified by floatation. So the processing method of is gravity separation-flotation process.

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