Invention Grant
US5252223A Reduction of copper discharge to waste streams contaminated with
isothiazolone biocides
失效
将铜排放减少到被异噻唑酮杀生物剂污染的废物流
- Patent Title: Reduction of copper discharge to waste streams contaminated with isothiazolone biocides
- Patent Title (中): 将铜排放减少到被异噻唑酮杀生物剂污染的废物流
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Application No.: US980029Application Date: 1992-11-23
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Publication No.: US5252223APublication Date: 1993-10-12
- Inventor: Walter H. Goodman , Nicholas J. Furibondo
- Applicant: Walter H. Goodman , Nicholas J. Furibondo
- Applicant Address: IL Naperville
- Assignee: Nalco Chemical Company
- Current Assignee: Nalco Chemical Company
- Current Assignee Address: IL Naperville
- Main IPC: B01J45/00
- IPC: B01J45/00 ; C02F1/50 ; C02F1/42
Abstract:
The discharge of copper from isothiazolone biocides into industrial waste water streams is prevented by contacting the isothiazolone biocide as it is withdrawn from a point of use storage container with an ion exchange resin capable of removing copper from aqueous solutions. When the treated isothiazolone biocide is added to an industrial process water which will produce waste stream, potential copper contamination is virtually eliminated.
Public/Granted literature
- US6073538A Reciprocating compressor Public/Granted day:2000-06-13
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