发明名称 |
Method for clarifying aqueous waste liquids containing acid dyes |
摘要 |
A method for clarifying an aqueous waste liquid containing acid dyes dissolved therein by bringing said waste liquid into contact with a dicyandiamide-formaldehyde resin, wherein said dicyandiamide-formaldehyde in an optimum amount as defined in the specification and at least about 300 ppm of aluminum sulfate are added sequentially to said aqueous waste liquid, the amount of the additives being based on 100 ppm of the dyes.
|
申请公布号 |
US4088573(A) |
申请公布日期 |
1978.05.09 |
申请号 |
US19760742066 |
申请日期 |
1976.11.15 |
申请人 |
NIPPON CARBIDE KOGYO KABUSHIKI KAISHA |
发明人 |
NAKAJIMA, MIKIO;KUWABARA, KIYOAKI |
分类号 |
C02F1/52;C02F1/54;(IPC1-7):C02B1/20 |
主分类号 |
C02F1/52 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|