| 发明名称 |
Work-up of phosphating bath overflows and/or rinsing water |
| 摘要 |
Phosphate bath overflows and/or the rinsing water used following a phosphating process is/are processed by subjecting to nanofiltration, the phosphating solution having been one containing 3-50g/l phosphate ions (calculated as (PO4)<3->) and 0.2-3g/l Zn ions, as well as optionally also further metal ions and/or accelerators.
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| 申请公布号 |
DE19813058(A1) |
申请公布日期 |
1999.09.30 |
| 申请号 |
DE19981013058 |
申请日期 |
1998.03.25 |
| 申请人 |
HENKEL KGAA |
发明人 |
BROUWER, JAN-WILLEM;KUHM, PETER;VIER, JENS |
| 分类号 |
B01D61/02;C02F1/44;C23C22/86;(IPC1-7):C23C22/86;C23C22/13 |
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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