硫铁矿焙烧渣资源化实验研究

Experimental study of using pyrite slag as resource

以硫酸溶液浸出硫铁矿烧渣,可使硫、砷分别降低到0.35%,0.04%。正交实验表明,最佳工艺条件为:矿浆浓度30%,硫酸浓度为15%,反应时间120 min,温度50℃,搅拌速度300 r/min。

In sulfuric acid solution leaching pyrite slag, which can make the content of S and As in slag decrease to 0.35% and 0.04% respectively. The optimum technical conditions of treating pyrite slag with sulfuric acid solution are,which is obtain by the orthogonal experiment, sulfuric acid concentration 15%, the temperature 50℃, ore pulp density 30%, the reaction time 120 min, stirring speed 300 r/min.