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Bismuth removing agent for antimony smelting production and application thereof

A technology of production process and metal element, which is applied in the field of bismuth removal agent produced by antimony smelting, can solve the problems affecting the quality of antimony products, there is no method for removing bismuth in antimony smelting reverberatory furnace, and restrict the application of antimony products, etc., and achieve good bismuth removal effect , significant economic benefits, and the effect of expanding the application field

Inactive Publication Date: 2020-04-24
广西万仕智稀贵金属科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the smelting process of non-ferrous metal antimony, the impurity bismuth affects the quality of antimony products and restricts the application of antimony products in industry. Therefore, the national standard for antimony products stipulates the content requirements of bismuth in antimony products, but so far there is no reverberatory furnace for antimony smelting in the industry. Efficient Bismuth Removal Method During Refining Process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] 18㎡ reverberatory furnace refining bismuth removal operation, the metal elemental calcium, potassium-containing compounds, and metal elemental magnesium are prepared in a ratio of 3:1:2 to prepare a bismuth removal agent. The antimony liquid contains 0.05% bismuth before refining, and the weight of the antimony liquid is estimated to be 50 tons. Add 2 tons of prepared bismuth removal agent at 950°C to 1000°C, blow it and stir it for 1 hour to get out the slag, take a sample to test that the antimony liquid contains 0.006% bismuth, which is better than the expected value, and the bismuth removal effect is remarkable.

Embodiment 2

[0013] Refining and removing bismuth in 16㎡ reverberatory furnace. Calcium-containing compound, potassium-containing compound and magnesium-containing compound are prepared in a ratio of 3:2:2 to prepare bismuth-removing agent. The antimony liquid contains 0.03% bismuth before refining. 2.5 tons of prepared bismuth removal agent was added at 950℃~1000℃, and the slag was discharged after 1 hour of blowing and agitation. The antimony solution contained 0.001% bismuth, which was better than the expected value, and the bismuth removal effect was remarkable.

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PUM

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Abstract

The invention relates to the technical field of smelting of the non-ferrous metal--antimony, and discloses a bismuth removing agent for smelting production of antimony and application thereof. The bismuth removing agent comprises metal elemental calcium or a calcium-containing compound, metal elemental potassium or a potassium-containing compound, and metal elemental magnesium or a magnesium-containing compound; and the bismuth removing agent for antimony refining is prepared by independently using the metal elemental calcium or calcium-containing compound, the metal elemental potassium or potassium-containing compound and the metal elemental magnesium or magnesium-containing compound or mixing more than one substances mentioned above according to a certain ratio. The bismuth removing agent is added into a furnace during bismuth removal in reverberatory refining of antimony; slag without bismuth after a complete reaction can float on the surface of antimony liquid, and dross without bismuth is pulled out of a furnace from an operation door. With such a technical scheme, impurity bismuth in antimony can be effectively removed, remarkable economic benefits are obtained, and meanwhile, the bismuth removing method is of important significance in expanding the application field of antimony products in industrial engineering.

Description

technical field [0001] The invention relates to the technical field of non-ferrous metal antimony smelting, in particular to a bismuth removing agent for antimony smelting production and its application. Background technique [0002] During the smelting process of non-ferrous metal antimony, the impurity bismuth affects the quality of antimony products and restricts the application of antimony products in industry. Therefore, the national standard for antimony products stipulates the content requirements of bismuth in antimony products, but so far there is no reverberatory furnace for antimony smelting in the industry. Effective method for removing bismuth during refining. [0003] In the research and practice process of this method, the inventors of the present invention have found that: comprising metal elemental calcium or calcium-containing compounds, including metal elemental potassium or potassium-containing compounds, including metal elemental magnesium or magnesium-c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B30/02C22B9/10
CPCC22B9/10C22B30/02
Inventor 王卫国
Owner 广西万仕智稀贵金属科技有限公司