发明名称 |
Cyclical vacuum chlorination processes, including lithium extraction |
摘要 |
Cyclical batch processes for halogenation, such as chlorination, of minerals in a fixed bed using a plurality of cycles which include the steps of at least partially evacuating the bed, charging the bed with reactant gas, maintaining the reactant gas in the bed for a predetermined time, and exhausting reaction products under vacuum. Also disclosed is the chlorination of spodumene in its beta crystalline form produced by calcining spodumene in its naturally-occurring alpha crystalline form to preferentially extract lithium as lithium chloride.
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申请公布号 |
US2005220691(A1) |
申请公布日期 |
2005.10.06 |
申请号 |
US20050092286 |
申请日期 |
2005.03.28 |
申请人 |
THOMAS AND WENDELL DUNN, INC. |
发明人 |
DUNN WENDELL E.JR.;VAN JAHNKE JEFFREY |
分类号 |
C01B33/00;C01D15/00;C01F7/00;C01G23/00;C01G23/02;C22B1/08;C22B26/12;(IPC1-7):C22B26/12 |
主分类号 |
C01B33/00 |
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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