High lead-antimony slag type for anode slime smelting process and its use method

Abstract

The invention relates to a high lead-antimony slag type which is used for smelting technique of anode mud and is used by the anode mud in the process of reduction smelting of an oxygen bottom blowing bullion lead furnace in the technique that an oxygen bottom blowing furnace smelts the anode mud and a using method, belonging to the scope of separation and extraction of precious metal and base metal; a formula thereof is the high lead-antimony slag type with low silicon, low calcium and low sodium; all the materials comprises the following ingredients according to mass ratio: 5 to 22 percent of SiO2, 1 to 8 percent of FeO, 0 to 6 percent of Na2O, 0 to 5 percent of CaO, 10 to 35 percent of PbO and 150 to 45 percent of Sb2O3, wherein, the control range of the mass ratio of the PbO and SiO2 is 1.50 to 6.0. The formula not only has good effect for prolonging the service life of a refractory material and improving the continuous operation rate and processing capacity of the bullion lead, but also leads the reduction and volatilization of arsenic and antimony and oxidation and slag formation of lead to be realized simultaneously, reduces the usage of flux and consumption of fuel and effectively separates the valuable metals.

Description

technical field [0001] The invention belongs to the non-ferrous metal smelting industry, and in particular relates to a high-lead-antimony slag type for the anode slime smelting process used in the oxygen bottom-blown furnace smelting anode slime process in the oxygen bottom-blown precious lead furnace reduction smelting process and its use The method belongs to the category of separation and extraction of noble and base metals. Background technique [0002] Anode slime mainly contains gold, silver, antimony, copper, bismuth, lead, arsenic and other valuable elements. At present, there are two types of anode slime treatment processes at home and abroad: one is the traditional pyrotechnic process, and the other is the wet and semi-wet process. The former is suitable for low-grade, large-scale anode slime treatment, and the latter is suitable for gold-bearing High-volume and small-volume anode slime treatment manufacturers. [0003] The traditional pyrotechnic process of lea...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a method that can reduce the erosion of refractory materials by alkaline slag during anode slime reduction smelting, increase the furnace life of noble lead furnaces, and solve the problem of using the original experience slag type in the large-scale automation process of anode mud fire production equipment. There is the bottleneck problem of short furnace life, and the high-lead-antimony slag type used in the anode slime smelting process and its use method are convenient for the separation of valuable metals in the anode slime

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