发明名称 |
SEPARATION OF MULTIVALENT METAL ION FROM SELF-DEPOSITING COMPOSITION AND METHOD FOR REGENERATING ION EXCHANGE RESIN USEFUL THEREFOR |
摘要 |
PROBLEM TO BE SOLVED: To prolong the service life of a self-depositing resin bath by bringing a specified percentage of the total amt. of a used self-depositing resin bath contg. dissolved Zn and Fe ions into contact with a cation exchange resin, then bringing the bath into contact with the surface of an Fe- or Zn-base metal and forming a coating film on the surface of the metal. SOLUTION: At least 30% of the total amt. of a used self-depositing resin bath is brought into contact with a cationic resin having cations of at least one of H and Fe bonded reversibly without adding a dispersant. The bath is then brought into contact with the surface of an Fe- or Zn-base metal and a coating film is formed on the surface of the metal. The cationic resin is a cation exchange resin having functional groups such as iminodiacetate groups or aminophosphonic acid groups and dissolved Zn cations are transferred to the cation exchange resin and substd. for H or Fe ions. |
申请公布号 |
JPH0910603(A) |
申请公布日期 |
1997.01.14 |
申请号 |
JP19960101513 |
申请日期 |
1996.04.23 |
申请人 |
NIPPON PARKERIZING CO LTD |
发明人 |
UIRIAMU JII KOZATSUKU;KURISUTEIINA EMU HAASU;BASHIYAA EMU AAMEDO |
分类号 |
B01J39/04;B01J45/00;B01J49/00;B05D7/14 |
主分类号 |
B01J39/04 |
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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