发明授权
US3935096A Production of aqueous metal hydroxide solutions of low metal halide
concentration
失效
生产低金属卤化物浓度的金属氢氧化物水溶液
- 专利标题: Production of aqueous metal hydroxide solutions of low metal halide concentration
- 专利标题(中): 生产低金属卤化物浓度的金属氢氧化物水溶液
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申请号: US430116申请日: 1974-01-02
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公开(公告)号: US3935096A公开(公告)日: 1976-01-27
- 发明人: Jeffrey D. Eng , Cyril J. Harke
- 申请人: Jeffrey D. Eng , Cyril J. Harke
- 申请人地址: NY Niagara Falls
- 专利权人: Hooker Chemicals & Plastics Corporation
- 当前专利权人: Hooker Chemicals & Plastics Corporation
- 当前专利权人地址: NY Niagara Falls
- 主分类号: C01B13/16
- IPC分类号: C01B13/16 ; B01D61/24 ; B01D61/30 ; B01D61/32 ; C01D1/38 ; B01D13/00
摘要:
A cation-active permselective membrane of a hydrolyzed copolymer of a perfluorinated olefin and a fluorosulfonated perfluorovinyl ether, a modification thereof, or sulfostyrenated perfluorinated ethylene propylene copolymer is employed to dialytically pass metal hydroxide from an aqueous solution thereof containing metal halide halates, thereby purifying the metal hydroxide of the metal halide. The named cation-active permselective membrane materials resist deterioration by the halates, hydroxide and halide components of the solution being purified.The invention also includes a dialysis cell for effecting the purification.
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