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我厂氟化盐生产的石膏渣中含有少量硫酸,为了综合回收这部分硫酸,采取了配加粘土矿浸出的方法,生产硫酸铝,这样既解决了废渣中酸的危害,又生产出了(?)造纸工业等部门使用的产品。过去,产品质量一直较低,精制品率一般只有70～80％,而且是精制三级品。自全国开展质量月活动以来,通过开展QC小组活动,我厂所生产的硫酸铝质量有了很大提高。1983年,产出的硫酸铝全部为
I plant fluoride salt production of gypsum residue contains a small amount of sulfuric acid, in order to comprehensively recover this part of the sulfuric acid, taken with clay leaching method, the production of aluminum sulfate, so that not only solve the acid residue in the waste, but also produced a ( ?) Products used in the paper industry and other sectors. In the past, product quality has been low, the rate of refined products is generally only 70 to 80%, but also refined third grade. Since the quality of the month since the country activities, through the QC group activities, the quality of aluminum sulfate produced by our plant has been greatly improved. In 1983, the output of all the aluminum sulfate