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采用管式炉焙浇法对怀化某矿的高砷金精矿进行了脱砷脱硫的小型试验研究，结果表明，在最佳焙烧制度下，脱砷率达９７．８０％，脱硫率９１．４８％，焙砂金浸出率可达９２．９６％。
A small-scale experimental study on desulfurization of high arsenic gold concentrate in a mine in Huaihua was carried out by tube furnace baking method. The results showed that the removal rate of arsenic removal was 97.80% and the desulfurization rate was 91 under the optimal calcination system. 48%, roasted gold leaching rate of 92.96%.