| 发明名称 |
METHOD FOR PURIFYING ORGANOPHOSPHONIC ACID |
| 摘要 |
PROBLEM TO BE SOLVED: To provide an organophosphonic acid of low cationic and anionic impurity contents. SOLUTION: The objective method for purifying an organophosphonic acid comprises electrodialysis of the organophosphonic acid having in the molecule at least one phosphonic acid group or salt thereof.
|
| 申请公布号 |
JP2002097194(A) |
申请公布日期 |
2002.04.02 |
| 申请号 |
JP20000285428 |
申请日期 |
2000.09.20 |
| 申请人 |
MITSUBISHI GAS CHEM CO INC |
发明人 |
WATANABE HIROYA;TANAKA KAZUNARI;NITO SHOICHI |
| 分类号 |
B01D61/44;C02F1/469;C02F5/00;C02F5/14;C07F9/38;(IPC1-7):C07F9/38 |
主分类号 |
B01D61/44 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
