Method for enriching and recovering thallium from lead smelting system
A lead smelting and enrichment technology, applied in the direction of improving process efficiency, etc., to achieve the effects of reducing production costs, low toxicity, and ensuring product quality
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Embodiment 1
[0045] A method for enriching and recovering thallium from a lead smelting system, the method comprising the following steps:
[0046] (1) Thallium and cadmium soot is collected from the lead concentrate smelting system; the specific process is as follows:
[0047] A: Put lead concentrate and auxiliary materials (stone, limestone, crushed coal, coke, about 10% of the total amount of auxiliary materials) into the oxygen-enriched bottom-blown furnace, and then use an oxygen lance to blow in oxygen (oxygen pressure is 0.5-1.2MPa, oxygen The blowing volume is 90-130m per ton of the mixture of lead concentrate and auxiliary materials. 3 oxygen. ), heating and smelting, oxidation smelting and desulfurization at 950-1300°C to produce high-lead slag, crude lead and high-temperature SO 2 Flue gas dust, high temperature SO 2 After the flue gas and dust are discharged, they are cooled by the waste heat boiler (to 270-370°C) and then subjected to electric dust collection (both cooling ...
Embodiment 2
[0061] A method for enriching and recovering thallium from a lead smelting system, the method comprising the following steps:
[0062] (1) Thallium and cadmium soot is collected from the lead concentrate smelting system; the specific process is as follows:
[0063] A: Put lead concentrate and auxiliary materials (stone, limestone, crushed coal, coke, about 10% of the total amount of auxiliary materials) into the oxygen-enriched bottom-blown furnace, and then use an oxygen lance to blow in oxygen (oxygen pressure is 0.5-1.2MPa, oxygen The blowing volume is 90-130m per ton of the mixture of lead concentrate and auxiliary materials. 3 oxygen. ), heating and smelting, oxidation smelting and desulfurization at 950-1300°C to produce high-lead slag, crude lead and high-temperature SO 2 Flue gas dust, high temperature SO 2 After the flue gas and dust are discharged, they are cooled by the waste heat boiler (to 270-370°C) and then subjected to electric dust collection (both cooling ...
Embodiment 3
[0077] A method for enriching and recovering thallium from a lead smelting system, the method comprising the following steps:
[0078] (1) Thallium and cadmium soot is collected from the lead concentrate smelting system; the specific process is as follows:
[0079] A: Put lead concentrate and auxiliary materials (stone, limestone, crushed coal, coke, about 10% of the total amount of auxiliary materials) into the oxygen-enriched bottom-blown furnace, and then use an oxygen lance to blow in oxygen (oxygen pressure is 0.5-1.2MPa, oxygen The blowing volume is 90-130m per ton of the mixture of lead concentrate and auxiliary materials. 3 oxygen. ), heating and smelting, oxidation smelting and desulfurization at 950-1300°C to produce high-lead slag, crude lead and high-temperature SO 2 Flue gas dust, high temperature SO 2 After the flue gas and dust are discharged, they are cooled by the waste heat boiler (to 270-370°C) and then subjected to electric dust collection (both cooling ...
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