发明名称 |
ETHERATED PHENOL RESIN HAVING CHELATING GROUP AND METHOD FOR ADSORBING TREATMENT |
摘要 |
PURPOSE:To obtain a resin having excellent alkali and chemical resistance at high temperature useful for the separation by adsorbing heavy metal ions from sea water. CONSTITUTION:A 5-10% aqueous solution of NaOH is added to an ion exchange water in which a chelating group-containing phenol resin (end group H type) is immersed and a complex-formable metal ion such as Ca is adsorbed in the resin. The resulting phenol resin is reacted with NaOH and an etherating agent in water at approximately 20-150 deg.C in the pH of 7-14 to give a etherated phenol resin having chelating group. An etherating agent may be preferably halogenated acetic acid or halohydrin when the chelating group in the phenol resin is aminocarboxylic acid. APPLICATION:The separation by the adsorption of heavy metals from waste water of refuse incinerting plants, waste washing water of desulfurizers of stack gas, and aqueous salt solutions for sodium hydroxide. |
申请公布号 |
JPS5798520(A) |
申请公布日期 |
1982.06.18 |
申请号 |
JP19810151575 |
申请日期 |
1981.09.24 |
申请人 |
UNITIKA KK |
发明人 |
UEJIMA HIROMOTO;HIRAI MASAHIDE;SAKAIDA TSUTOMU |
分类号 |
B01D15/00;B01J20/26;B01J45/00;C02F1/28;C08G8/00;C08G8/28;C08G8/36 |
主分类号 |
B01D15/00 |
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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