A kind of biochar composite reducing agent for copper smelting
A biochar and composite biochar technology, applied in the field of copper smelting, can solve the problems of reduction reaction rate to be improved, high ash content, and slag content increase, and achieve low cost, high activity, and reduced sulfur and ash content Effect
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Embodiment 1
[0030] A biochar composite reducing agent for copper smelting, the particle size is less than or equal to 2mm. Each 100 parts by mass includes the following materials: 8 parts of coal, 50 parts of petroleum coke, 40 parts of composite biochar, and 2 parts of montmorillonite.
[0031] Wherein, the sulfur content of the coal is less than or equal to 0.5wt%, and the sulfur content of the petroleum coke is less than or equal to 0.5wt%.
[0032] The preparation method of described composite biochar is as follows:
[0033] 1) The dehydrated red algae, walnut shells, and chestnut shells with a mass ratio of 1:1.5:3 are crushed and mixed, placed in a carbonization device, and heated to 300°C at a rate of 35°C / min under atmospheric conditions. Keep it for 20 minutes, wash and dry after the end to get the pre-carbonized product.
[0034] 2) Mix the pre-carbonized product with sodium hydroxide and zinc chloride at a mass ratio of 1:2:1.5 and place it in a microwave radiation device, an...
Embodiment 2
[0038] A biochar composite reducing agent for copper smelting, the particle size is less than or equal to 2mm. Each 100 parts by mass includes the following materials: 8 parts of coal, 50 parts of petroleum coke, 40 parts of composite biochar, and 2 parts of montmorillonite.
[0039] Wherein, the sulfur content of the coal is less than or equal to 0.5wt%, and the sulfur content of the petroleum coke is less than or equal to 0.5wt%.
[0040] The preparation method of described composite biochar is as follows:
[0041] 1) The dehydrated red algae, walnut shells, and chestnut shells with a mass ratio of 1:1.5:3 are crushed and mixed, placed in a carbonization device, and heated to 300°C at a rate of 35°C / min under atmospheric conditions. Keep it for 20 minutes, wash and dry after the end to get the pre-carbonized product.
[0042]2) Mix the pre-carbonized product with potassium hydroxide and zinc chloride at a mass ratio of 1:2:1.5 and place it in a microwave radiation device, ...
Embodiment 3
[0046] A biochar composite reducing agent for copper smelting, the particle size is less than or equal to 1mm. Each 100 parts by mass includes the following materials: 6 parts of coal, 47 parts of petroleum coke, 45 parts of composite biochar, and 2 parts of montmorillonite.
[0047] Wherein, the sulfur content of the coal is less than or equal to 0.5wt%, and the sulfur content of the petroleum coke is less than or equal to 0.5wt%.
[0048] The preparation method of described composite biochar is as follows:
[0049] 1) The dehydrated red algae, walnut shells, and chestnut shells with a mass ratio of 1:1:2 are crushed and mixed, placed in a carbonization device, and heated to 200°C at a rate of 30°C / min under atmospheric conditions. Keep it for 10 minutes, wash and dry after the end to get the pre-carbonized product.
[0050] 2) Mix the pre-carbonized product with potassium hydroxide and zinc chloride at a mass ratio of 1:1.5:1.5 and place it in a microwave radiation device,...
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