Method for treating and refining copper, tin, zinc and lead-containing waste residues
A refining method and waste slag technology, applied in zinc, tin, lead waste slag treatment and refining, and copper-containing fields, can solve problems such as complex process, high cost, environmental pollution, etc., achieve good economic benefits, high added value, and reduce recycling costs Effect
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Embodiment 1
[0021] Table 1 shows the amount of waste slag in a smelter from 2006 to 2008. The waste slag is lumpy and granular, and the total content of copper, tin, zinc, and lead is about 6-8%. About 800kg of valuable metals can be recovered per ton. Calculated at 60,000 yuan, the annual recovery value is nearly 50,000 yuan.
[0022] Table 1 Amount of waste residue in a smelter from 2006 to 2008
[0023]
[0024] The above-mentioned waste slag containing copper, tin, zinc, and lead is treated and refined, and the waste slag is used to prepare copper-based metal powder. The process flow chart is as follows figure 1 As shown, the method steps are as follows:
[0025] (1) Take 500kg of waste slag from the above-mentioned smelter. The waste slag is roughly broken by PE-150×250 jaw crusher. reach 0.01-2mm, and then use the 6-S shaker, using water as the medium, to separate the metal material and waste slag by gravity separation, and the amount of the separated metal material is 48kg;
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Embodiment 2
[0035] The tin-copper waste slag of a smelter is in the form of lumps, containing only two elements of copper and tin, and the total content of valuable metals is about 12%.
[0036] The above-mentioned copper and tin-containing waste residues are treated and refined, and the waste residues are used to prepare copper-based metal powder. The process flow chart is as follows figure 1 As shown, the method steps are as follows:
[0037] (1) Take 500kg of waste slag from the above-mentioned smelter. The waste slag is roughly broken by PE-150×250 jaw crusher. When it reaches 0.01-2mm, use the 6-S shaker, use water as the medium, and separate the metal material and waste slag by gravity separation. The amount of metal material separated is 63kg;
[0038] (2) Dehydrate the metal material separated in step (1) with a centrifuge, then vacuum-dry it, and melt it in a 150kg intermediate frequency induction furnace. Phosphor copper 0.2kg is reduced and deoxidized, and the slag is removed...
Embodiment 3
[0045] The copper-zinc waste slag of a foundry only contains two elements, copper and zinc, and the total content of valuable metals is about 6%.
[0046] The above-mentioned waste residue containing copper and zinc is treated and refined, and the waste residue is used to prepare copper-based metal powder. The process flow chart is as follows figure 1 As shown, the method steps are as follows:
[0047] (1) Take 500kg of waste slag from the above-mentioned foundry. The waste slag is roughly broken by PE-150×250 jaw crusher. When it reaches 0.01-2mm, use the 6-S shaker, use water as the medium, and separate the metal material and waste slag by gravity separation. The amount of metal material separated is 34kg;
[0048] (2) Dehydrate the metal material separated in step (1) with a centrifuge, then vacuum-dry it, and melt it in a 150kg intermediate frequency induction furnace. 0.2kg of charcoal is reduced and deoxidized, and the slag is removed to make a master alloy. The compos...
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