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根据钨钼化合物性质的差异 ,运用分子设计的理论和方法 ,研究出一种用选择性沉淀法从APT结晶母液中除去钼及砷、锑、锡等杂质 ,并从除钼后的溶液中进一步回收WO3和NH4Cl的新工艺 .回收的WO3以APT形态产出 ,其质量达GB1 0 1 1 6— 88中APT— 0级要求 ,回收率达 90 %～ 95 % ;回收的NH4Cl质量完全符合配制解吸液的要求 ,其实收率达 6 0 %以上 .和工业上处理APT结晶母液的现行工艺相比 ,该工艺能带来明显的经济效益
According to the difference of the properties of tungsten and molybdenum compounds, using the theory and method of molecular design, a method was developed to remove impurities such as molybdenum, arsenic, antimony and tin from the mother liquid of APT by selective precipitation method, Recovery of WO3 and NH4Cl new technology recovery of WO3 APT morphology output, the quality of GB1 0 1 1 6-88 APT-0 level requirements, the recovery rate of 90% to 95%; recovered NH4Cl quality in full compliance with the preparation Desorption solution, in fact, the yield of 60% or more.Compared with the current industrial process APT crystallization mother liquor, the process can bring significant economic benefits