发明名称 |
PROCESS FOR PRODUCING POTASSIUM SULFATE FROM POTASH AND SODIUM SULFATE |
摘要 |
The present invention provides a process for producing potassium sulfate from a potash and a sodium sulfate source, comprising the steps of: (a) treating a portion of the potash source and sodium sulfate source, such that glaserite is crystallized out of solution and a first mother liquor is produced; (b) converting the glaserite to precipitate potassium sulfate in a second mother liquor; (c) recycling the second mother liquor to the portion of the potash source and sodium sulfate source; (d) subjecting the first mother liquor to evaporative crystallization to produce sodium chloride in a third mother liquor; and (e) recycling the third mother liquor to the portion of the potash source and sodium sulfate source.
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申请公布号 |
WO0015554(A1) |
申请公布日期 |
2000.03.23 |
申请号 |
WO1999US19401 |
申请日期 |
1999.08.26 |
申请人 |
DEAD SEA WORKS LTD.;FRIEDMAN, MARK, M.;HOLDENGRABER, CURT;LAMPERT, SHALOM |
发明人 |
HOLDENGRABER, CURT;LAMPERT, SHALOM |
分类号 |
C01D5/06;C01D5/00;C01D5/08;(IPC1-7):C01D5/00 |
主分类号 |
C01D5/06 |
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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