发明名称 |
METHOD FOR PRODUCING HIGH-PURITY QUATERNARY AMMONIUM SALT |
摘要 |
<p>A process for preparing a high-purity quaternary ammonium salt comprising:
(1) adding an oxide or hydroxide of a Group 1, 2, 12 or 13 metal to a quaternary ammonium salt containing a protonic acid salt of a tertiary amine as an impurity and thereby neutralizing the tertiary amine protonic acid salt with the metal oxide or hydroxide to convert the acid salt to a tertiary amine and water and to convert the metal oxide or hydroxide to a metal salt at the same time, and
(2) removing the tertiary amine, water and metal salt produced from the system.</p> |
申请公布号 |
EP2072496(A4) |
申请公布日期 |
2010.10.27 |
申请号 |
EP20070828372 |
申请日期 |
2007.09.18 |
申请人 |
OTSUKA CHEMICAL CO., LTD.;STELLA CHEMIFA CORPORATION |
发明人 |
NISHIDA, TETSUO;HIRANO, KAZUTAKA;OKA, AKINORI;ABE, YOSHINOBU;NABESHIMA, AKIHIRO |
分类号 |
C07C213/10;C07C209/12;C07C209/84;C07C211/63;C07C217/08;C07D207/06;C07D233/58;H01B1/20;H01B13/00;H01G9/00;H01G9/035;H01G11/62 |
主分类号 |
C07C213/10 |
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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