Process for recovering copper and zinc and tin and lead by utilizing side blown converter at the bottom
A side-blown furnace and process technology, applied in zinc, tin, lead processes, and copper in tin ore fields, can solve the problems of many operations, high remelting and high smelting costs, and achieve the effect of strong adaptability
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[0020] Example 1:
[0021] (1) Ingredients and mixing: chemical composition analysis of slag, soot and low-grade tin; mix slag, soot, low-grade tin ore and flux uniformly, and the moisture content of the material is ≤3%;
[0022] (2) Reduction smelting volatile lead, zinc, lead, zinc fume collection: first put the hot slag of the reduction furnace into the side blowing furnace, and then add the mixed materials into the side blowing furnace and the hot slag of the reduction furnace for reduction smelting. The tin content in the material after adding the hot slag of the reduction furnace and the ingredient mixture in the side blowing furnace is 10%, and the slag silicic acid degree is 1 to 1.2; the first stage reduction smelting volatile lead and zinc, and dust collection to obtain lead oxide and zinc oxide. Lead and zinc fume are collected through cloth bags, and the dust content of the fume after dust collection is ≤50mg / Nm 3 ; Reducing agent bituminous coal particle size in reduct...
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