Treatment method of ammonium paratungstate crystallization mother liquor

The invention discloses an ammonium paratungstate crystallization mother liquor treatment method, which comprises: S1, recovering a material liquid containing tungsten and ammonia, and mixing the material liquid with an alkali compound to form a first mixed liquid; s2, mixing the ammonium paratungstate crystallization mother solution with the first mixed solution to form a second mixed solution, and evaporating the second mixed solution to recover at least part of ammonia in the second mixed solution and obtain a first treated solution; s3, carrying out air stripping treatment on the first treatment liquid so as to recover ammonia gas generated in the air stripping process of the first treatment liquid and obtain a second treatment liquid; s4, adding calcium chloride into the second treatment liquid to recover calcium tungstate generated by the reaction of the second treatment liquid and the calcium chloride, and obtaining a third treatment liquid; and S5, carrying out circulating spraying treatment on the th