Method for utilizing waste cathode carbon block in aluminum electrolytic bath to extract copper cobalt in copper converter slag
A technology of waste cathode carbon blocks and copper converter slag, which is applied in the direction of improving process efficiency, can solve the problems of green resource utilization without waste cathode carbon blocks, high cost, and non-recyclable utilization, etc., to achieve the elimination of leaching toxicity, effective Good for separation and improved recovery
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Embodiment 1
[0025] After the waste cathode carbon block, copper converter slag, sulfide and lime are broken into 10-50mm particle size materials, take 200g of copper converter slag, 80g of sulfide agent, 16g of waste cathode carbon block and 10g of limestone, and fully mix them into a corundum crucible Put it in a muffle furnace for heating, firstly heat the raw material from room temperature to 1200°C at a heating rate of 5°C / min, then heat it to 1400°C at a heating rate of 3°C / min, and keep it warm for two hours after reaching 1400°C. The depleted slag is separated from the cobalt matte to recover copper and cobalt. The recovery rate of copper is 95.52%, and the recovery rate of cobalt is 91.40%.
Embodiment 2
[0027] After the waste cathode carbon block, copper converter slag, vulcanizing agent and limestone are crushed into 10-50mm particle size materials, take 200g of copper converter slag, 80g of vulcanizing agent, 24g of spent cathode carbon block and 15g of limestone, and fully mix them into a corundum crucible Put it in a muffle furnace for heating, firstly heat the raw material from room temperature to 1200°C at a heating rate of 5°C / min, then heat it to 1400°C at a heating rate of 3°C / min, and keep it warm for two hours after reaching 1400°C. The depleted slag is separated from the cobalt matte to recover copper and cobalt. The recovery rate of copper is 98.26%, and the recovery rate of cobalt is 97.88%.
Embodiment 3
[0029] After the waste cathode carbon block, copper converter slag, vulcanizing agent and limestone are crushed into 10-50mm particle size materials, take 200g of copper converter slag, 80g of vulcanizing agent, 32g of waste cathode carbon block and 15g of limestone, and fully mix them into a corundum crucible Put it in a muffle furnace for heating, firstly heat the raw material from room temperature to 1200°C at a heating rate of 5°C / min, then heat it to 1400°C at a heating rate of 3°C / min, and keep it warm for two hours after reaching 1400°C. The depleted slag is separated from the cobalt matte to recover copper and cobalt. The recovery rate of copper is 99.45%, and the recovery rate of cobalt is 99.74%.
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