发明名称 |
Fremgangsmåde til opkoncentrering af lak-overspray |
摘要 |
<p>Process for concentrating a mixt. of wash water and overspray from a painting chamber comprises preconcentrating the mixt. (2) in an ultrafiltration unit (3) to obtain a retentate (4) and a permeate (5) contg. low mol. wt. component; passing the ultrafiltration permeate (5) and a recycled nanofiltration permeate (11) to a reverse osmosis unit (6) to obtain a retentate (7) and a practically pure water permeate (8); recycling the permeate (8) to the wash water circuit; and passing the combined ultrafiltration and reverse osmosis retentates to a nanofiltration unit (9) to obtain a permeate (11) and a retentate (10) wherein the retentate largely corresponds in compsn. and concn. to the water-based lacquer used for spray painting.</p> |
申请公布号 |
DK0675080(T3) |
申请公布日期 |
1997.12.15 |
申请号 |
DK19950102331T |
申请日期 |
1995.02.20 |
申请人 |
BAYER AG |
发明人 |
HOVESTADT, WIELAND, DR.;BR;GERIGK, MARKUS, DR. |
分类号 |
B01D61/02;B01D61/14;B01D61/58;B05B15/04;B05B15/12;B29B17/02;C02F1/44;C08J11/00;C08J11/04;C09D5/00;(IPC1-7):C02F1/44 |
主分类号 |
B01D61/02 |
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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