某窑渣为锌冶炼系统的铁矾渣和高酸浸出渣,进行干燥脱去部分水份,配入焦炭进回转挥发窑,在超过1100℃高温下的挥发窑渣。窑渣中炭含量达25.38%。研究采用浮选工艺,在磨矿细度-0.074mm含量75%的条件下,以煤油为捕收剂,2#油为起泡剂,对其中炭进行回收,获得了炭精矿品位80.90%,回收率76.04%的较好指标。 A kiln for the zinc smelting system iron slag and high acid leaching residue, drying off part of the water, into the coke into the volatility of volatile kiln, in excess of 1100 ℃ high temperature volatile kiln slag. Kiln in the carbon content of 25.38%. In this paper, the flotation process was used. Under the conditions of grinding fineness of -0.074mm content of 75%, using kerosene as the collector and 2 # as the foaming agent, the carbon was recovered and the grade of carbon concentrate was 80.90% , A good indicator of the recovery rate of 76.04%.