发明名称 |
CO-PRODUCTION OF POTASSIUM SULFATE AND SODIUM SULFATE |
摘要 |
A process for producing potassium sulfate or potassium sulfate and sodium sulfate from potash (10) and a sodium sulfate/water source (46 and/or 76), which includes: (a) subjecting a sodium sulfate source (46 and/or 76) to conversion with potash (10) in an aqueous medium to yield glaserite precipitate (20) and a first mother liquor (26); (6) converting the glaserite precipitate (20) with potash (10) and water (18) to produce a potassium sulfate precipitate (52) and a second mother liquor (40); (c) returning the second mother liquor (40) to step (a); (d) evaporating the first mother liquor (26) such that a sodium chloride and anhydrous sodium sulfate solids mixture is precipitated in a third mother liquor (28); (e) subjecting the solids from step (d) to a sodium sulfate/water source (12) to produce anhydrous sodium sulfate; and (f) returning the third mother liquor (28) for conversion to potassium salts.
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申请公布号 |
WO9616899(A1) |
申请公布日期 |
1996.06.06 |
申请号 |
WO1995US14960 |
申请日期 |
1995.11.13 |
申请人 |
DEAD SEA WORKS LTD.;LAMPERT, SHALOM;HOLDENGRABER, CURT |
发明人 |
LAMPERT, SHALOM;HOLDENGRABER, CURT |
分类号 |
C01D5/00;C01D5/06;(IPC1-7):C01D5/00 |
主分类号 |
C01D5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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