发明名称 |
Process for the purification of phosphonium salts |
摘要 |
The invention relates to a process for the purification of phosphonium salts in which a solution of the crude phosphonium salt is passed over a bed of a cation exchange resin in salt form or of an adsorber resin, the resin is washed with a polar protic solvent in the case of the cation exchange resin and with an electrolyte solution and a nonpolar solvent in the case of the adsorber resin, and the phosphonium salt is eluted from the cation exchange resin with an electrolyte solution or from the adsorber resin with a polar solvent.
|
申请公布号 |
US6630605(B2) |
申请公布日期 |
2003.10.07 |
申请号 |
US20020161682 |
申请日期 |
2002.06.05 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
WEGNER CHRISTOPH;KLEIN DANIELA |
分类号 |
C07F9/02;C07F9/54;(IPC1-7):C07F9/54 |
主分类号 |
C07F9/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|