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Lead-zinc Ore Process

Lead-zinc Ore Process

Lead and zinc ores are usually found together with gold and silver. A lead-zinc ore may also contain lead sulfide, zinc sulfide, iron sulfide, iron carbonate, and quartz. When zinc and lead sulfides are present in profitable amounts they are regarded as ore minerals. The remaining rock and minerals are called gangue.

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  • LEAD-ZINC ORE PROCESS

    Introduction
    Lead and zinc ores are usually found together with gold and silver. A lead-zinc ore may also contain lead sulfide, zinc sulfide, iron sulfide, iron carbonate, and quartz. When zinc and lead sulfides are present in profitable amounts they are regarded as ore minerals. The remaining rock and minerals are called gangue.

    Lead and zinc is kind of earlier metal extracted from lead and zinc ore. Lead and zinc is widely used in the electrical industry, mechanical industry, military industry, metallurgy industry, chemical industry, light industry and pharmaceutical industry, etc. In addition, lead metal is also widely used in the nuclear industry, oil industry, etc. There are 11 kinds of plumbing minerals and 6 kinds of zinc minerals in lead and zinc ore in which galena and sphalerite are the most important.



    Process
    Lead minerals are separated from gangue and other materials in the ore by dry crushing, grinding to produce a slurry, gravity classification and flotation. The one of the process which is used for getting Pure Lead is the Flotation process; this process collects the Sulfur bearing portions of the Ore, which contains the valuable metal. The Liberated Lead minerals Flotation are smelted by three stage process of charge preparation blending, conditioning blast sintering and blast furnace reduction. The blast furnace bullion is then refined by the removal of copper, tin, arsenic, antimony, zinc, silver and bismuth.

    Lead ore concrete malleability and ease of smelting accounted for its early use in pipes and lead slag grinding mill sheeting for construction purposes. Most lead today is used in batteries for motor vehicles and in communications. After removing the ore from the mine, it is treated at a concentrating mill. In Lead concentrating process all waste rock is removed from the Lead.
     

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