含有机硫废碱液的综合利用

Comprehensive Utilization of Waste Alkali Liquor Containing Organic Sulfides

采用ＣｕＯ 沉淀剂与含有机硫废碱液进行固液反应，经过滤回收ＮａＯＨ，碱液中的有机硫由滤渣吸附除去，灼烧滤渣得到的 ＣｕＯ 可循环使用，并可得到副产品Ｎａ２Ｓ２ Ｏ５。最佳的试验条件为：ＣｕｖＳ＝ １．５６ｖ１（摩尔比），反应温度２０～３０℃，反应时间３０ｍ ｉｎ，滤渣灼烧温度９００～９５０℃，灼烧时间３０ｍ ｉｎ。总硫脱除率和 ＮａＯＨ 收率分别达到９５．７％ 和９５．２％

CuO precipitant is used to react with waste alkali liquor containing origanic sulfides. NaOH is recovered by filtration and organic sulfides are removed into filter cake by adsorption. CuO recovered by calcinating the filter cake can be reused and by product Na 2S 2O 5 is obtained. The optimum testing conditions are as follows:Cu∶S=1.56∶1(molar ratio),20～30℃ of reaction temperature, 30min of reaction time, 900～950℃ of calcination temperature and 30min of calcination time. The removal rate of total sulfur and the recovery rate of NaOH are 95.7% and 95.2% respectively.