Method for controlling arsenic in clean smelting of arsenic-containing gold-copper concentrate
A concentrate and gold-copper technology, which is applied in the field of arsenic control in the clean smelting of arsenic-containing gold-copper concentrate, can solve the problems of ineffective recovery of As2O3 and low purity of arsenic trioxide, and achieve the effect of increasing the dew point of SO3 and preventing equipment corrosion
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Embodiment 1
[0031] A method for controlling arsenic in the clean smelting of arsenic-containing gold-copper concentrate, comprising: a side blowing smelting system, a side blowing arsenic recovery system and a steel belt furnace refining system;
[0032] Side blowing melting system:
[0033] The gold-copper concentrate containing 1.5% arsenic is put into the side blowing smelting furnace, and at a high temperature of 1200°C, the oxygen-enriched air blown into the furnace reacts physically and chemically with the mixed charge to produce liquid copper matte, slag and flue gas, and copper The matte is sent to the blowing furnace, the slag is sent to the slag cooling field for cooling, and then sent to the slag beneficiation, the arsenic enters the flue gas in the gaseous form of arsenic trioxide, and the flue gas enters the quenching arsenic collection system after waste heat recovery and electric dust recovery; The rising flue of the blowing furnace is sprayed into an oxygen absorbent to re...
Embodiment 2
[0045] A method for controlling arsenic in the clean smelting of arsenic-containing gold-copper concentrate, comprising: a side blowing smelting system, a side blowing arsenic recovery system and a steel belt furnace refining system;
[0046] Side blowing melting system:
[0047] The gold-copper concentrate containing 1.8% arsenic is put into the side-blown smelting furnace, and at a high temperature of 1250°C, the oxygen-enriched air blown into the furnace reacts physically and chemically with the mixed charge to produce liquid copper matte, slag and flue gas. The matte is sent to the blowing furnace, the slag is sent to the slag cooling field for cooling, and then sent to the slag beneficiation, the arsenic enters the flue gas in the gaseous form of arsenic trioxide, and the flue gas enters the quenching arsenic collection system after waste heat recovery and electric dust recovery; The rising flue of the blowing furnace is sprayed into an oxygen absorbent to reduce the oxygen...
Embodiment 3
[0059] A method for controlling arsenic in the clean smelting of arsenic-containing gold-copper concentrate, comprising: a side blowing smelting system, a side blowing arsenic recovery system and a steel belt furnace refining system;
[0060] Side blowing melting system:
[0061] The gold-copper concentrate containing 2.0% arsenic is put into the side-blown smelting furnace, and at a high temperature of 1300°C, the oxygen-enriched air blown into the furnace reacts physically and chemically with the mixed charge to produce liquid copper matte, slag and flue gas, and copper The matte is sent to the blowing furnace, the slag is sent to the slag cooling field for cooling, and then sent to the slag beneficiation, the arsenic enters the flue gas in the gaseous form of arsenic trioxide, and the flue gas enters the quenching arsenic collection system after waste heat recovery and electric dust recovery; Oxygen absorbent is sprayed into the rising flue of the blowing furnace to reduce ...
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