A method for removing arsenic and antimony in the process of converting copper matte converter
A converter blowing and copper matte technology is applied in the field of copper smelting and can solve the problems of low extraction rate of arsenic and antimony, etc.
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Embodiment 1
[0043] Equipment: 100-ton PS converter (Φ4×10.7m);
[0044] Raw materials: (1) hot copper matte (Cu 57.95wt%, As 0.20wt%, Sb 0.18wt%); (2) self-produced cold material (Cu30.00wt%, As 0.17wt%, Sb 0.18wt%); ( 3) Quartz flux (SiO 2 86.00wt%); (4) Purchased blister copper (Cu97.20wt%, As 0.40wt%, Sb 0.25wt%); (5) Electrolytic residue (Cu 99.10wt%, As 0.15wt%, Sb0.08wt% ); (6) sodium sulfate (Na 2 SO 4 Purity 93.50%)
[0045] A method for removing arsenic and antimony in a copper smelter in Yunnan in the process of copper matte converter blowing, the specific steps include:
[0046] Step 1. 160 tons of hot copper matte (Cu 57.95wt%, As 0.20wt%, Sb 0.18wt%), 45 tons of self-produced cold material (Cu 30.00wt%, As 0.17wt%, Sb 0.18wt%), 14 1 ton of quartz flux is added to a 100-ton PS converter for one-cycle routine operation of PS converter blowing, with a furnace temperature of 1150°C~1250°C and an air volume of 32,000Nm 3 / h, blowing air with 25% oxygen, blowing for 120 minut...
Embodiment 2
[0050] Equipment: 100-ton PS converter (Φ4×10.7m);
[0051] Raw materials: (1) hot copper matte (Cu 60.20wt%, As 0.22wt%, Sb 0.20wt%); (2) self-produced cold material (Cu30.00wt%, As0.26wt%, Sb0.14wt%); ( 3) Quartz flux (SiO 2 86.00wt%); (4) Purchased blister copper (Cu97.10wt%, As 0.41wt%, Sb0.26wt%); (5) Electrolytic residue (Cu 99.20wt%, As 0.10wt%, Sb0.08wt% %); (6) Sodium Sulfate (Na 2 SO 4 Purity 96.00%)
[0052] A method for removing arsenic and antimony in a copper smelter in Yunnan in the process of copper matte converter blowing, the specific steps include:
[0053] Step 1. 160 tons of hot copper matte (Cu 60.20wt%, As 0.22wt%, Sb 0.20wt%), 37 tons of self-produced cold material (Cu 30.00wt%, As 0.26wt%, Sb 0.14wt%), 13 1 ton of quartz flux is added to a 100-ton PS converter for one-cycle routine operation of PS converter blowing, with a furnace temperature of 1150°C~1250°C and an air volume of 32,000Nm 3 / h, blowing air with 25% oxygen, blowing for 120 minutes...
Embodiment 3
[0057] A method for removing arsenic and antimony in a copper smelter in Yunnan in the process of copper matte converter blowing, the specific steps include:
[0058] Step 1. 160 tons of hot copper matte (Cu 60.20wt%, As 0.22wt%, Sb 0.20wt%), 37 tons of self-produced cold material (Cu 30.00wt%, As 0.26wt%, Sb 0.14wt%), 13 1 ton of quartz flux is added to a 100-ton PS converter for one-cycle routine operation of PS converter blowing, with a furnace temperature of 1150°C~1250°C and an air volume of 32,000Nm 3 / h, blowing air with 25% oxygen, blowing for 120 minutes to obtain white matte after slag removal and iron removal, and then transfer to the second cycle;
[0059] Step 2. After the start of the second cycle, white matte is added with 20 tons of purchased blister copper (Cu97.10wt%, As0.41wt%, Sb0.26wt%) and sodium sulfate according to the conventional ingredients of the smelter natural Glauber’s salt), after blowing for 20 minutes, add 20 tons of the second batch of crude...
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