发明名称 |
Process for isolating tetraphenylborates |
摘要 |
Tetraphenylborates are obtained in an industrially advantageous grade by spray drying an organic, aqueous or organic-aqueous extract of the tetraphenylborates obtainable in the tetraphenylborates synthesis. It is advantageous to treat the specified extract prior to spray drying with pH-controlling auxiliaries and adsorbents to remove byproducts or to limit their formation. The process gives tetraphenylborates in a homogeneous technical grade, i.e. in a narrow particle size distribution and in a particular particle shape, which improves the dispersibility in the medium to be used.
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申请公布号 |
US5693867(A) |
申请公布日期 |
1997.12.02 |
申请号 |
US19960705136 |
申请日期 |
1996.08.29 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
BAUR, RUEDIGER;FUCHS, HERMANN;MACHOLDT, HANS-TOBIAS;GITZEL, JOERG;THEISS, WILFRIED |
分类号 |
C07F5/02;(IPC1-7):C07C5/02 |
主分类号 |
C07F5/02 |
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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