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One method of making the rare earth fluorid

发布时间：6/11/2006 1:36:07 AM

有效时间：9/11/2006 12:00:00 AM

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发布人： YiSheng Guo ( Male)

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The fluorizating working procedure is mixing the hydrofluoric acid and the ammonia water to get the compound fluoridizer, then combine the rare earth material fluid with the compound fluoridizer, at last the fluorizating deposition precipitates the hydration rare earth fluorid. The prominent effect overcame original production craft all sorts of malpractices. The hydration rare earth fluorid grain is big, easy to precipitate, and reduces the clarification time to several dozens minutes; it is easy to wash, and has effective elimination of the excessive HF, Cl and other impurities; the product quality is high, and the rare earth returns-ratio is high, with very little corruption to the equipment; the l life of equipment is long, and the easy to operate.The production cycle is short,and the cost is low.