发明名称 Process for removing phosphorus from phosphorus-containing fluorite
摘要 A process for removing a phosphorus component from fluorite containing such phosphorus component, which process comprises adding powder of the fluorite to an aqueous acid solution having an acid concentration of from 1.0 to 20 Wt% in an inorganic acid/phosphorus ratio of above 25:1 by mole to give a slurry, agitating the slurry at a temperature below 50 DEG C., and collecting the powder from the slurry. The mother liquor obtained after separation of the powder from the slurry may be recycled to the first step.
申请公布号 US4180546(A) 申请公布日期 1979.12.25
申请号 US19780926016 申请日期 1978.07.19
申请人 CENTRAL GLASS CO LTD 发明人 ISOYAMA, KENJI;ONO, HIROSHI;SHIBATA, TOSHIYUKI
分类号 C01F11/24;C01F11/12;C01F11/22;(IPC1-7):C01F11/22 主分类号 C01F11/24
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