The 35,000-ton/year sodium fluosilicate plant of Yuntianhua International Chemical Co., Ltd. Furui Branch produces about 80 cubic meters of fluoride salt mother liquor per hour in the production process. Enterprises must consume large amounts of lime milk to treat the fluoride salt mother liquor. Neutralization treatment is very costly and cannot recover the sulfuric acid contained in the mother liquor in time. Recently, the company passed a technical reform to send all fluorine salt mother liquor to a 300,000-ton/year phosphoric acid plant filter, saving lime milk and sulfuric acid costs exceeding 1 million yuan per month, and exceeding 10 million yuan annually.
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