发明公开
- 专利标题： Preparation of potassium and cesium fluorides
- 专利标题（中）： 钾和氯氟酸盐的制备
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申请号： EP93109955.0申请日： 1993-06-22
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公开(公告)号： EP0575961A3公开(公告)日： 1994-08-24
- 发明人: Friese, David D. , Applebury, Terril E.
- 申请人： DOWELANCO
- 申请人地址： 9002 Purdue Road Indianapolis, Indiana 46268-1189 US
- 专利权人： DOWELANCO
- 当前专利权人： DOWELANCO
- 当前专利权人地址： 9002 Purdue Road Indianapolis, Indiana 46268-1189 US
- 代理机构： Huber, Bernhard, Dipl.-Chem.
- 优先权： US902633 19920623
- 主分类号： C01D3/02
- IPC分类号： C01D3/02 ; C01D17/00 ; C01B9/08
摘要：
Potassium and cesium fluoride are prepared from aqueous potassium or cesium chloride, respectively, by reaction of the latter with an aqueous solution of fluorosilicic acid to obtain potassium or cesium fluorosilicate, thermally decomposing the dried potassium or cesium fluorosilicate to evolve silicon tetrafluoride and leave the desired potassium or cesium fluoride as a residue, and dissolving the evolved silicon tetrafluoride in water to generate recyclable aqueous fluorosilicic acid.
公开/授权文献
- EP0575961A2 Preparation of potassium and cesium fluorides 公开/授权日：1993-12-29
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