发明名称 |
Water purification process |
摘要 |
Waste waters containing water glass, for example resulting from the dyeing of fabrics are purified by adding small amounts of basic nitrogen compounds, e.g. amines to the waste water and then carrying out the known flocculation process.
|
申请公布号 |
US3947353(A) |
申请公布日期 |
1976.03.30 |
申请号 |
US19740457715 |
申请日期 |
1974.04.03 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
LEHMANN, JOACHIM WALTER;LEHINANT, ARMAND |
分类号 |
B01D21/01;C02F1/52;C02F1/54;(IPC1-7):C02B1/20 |
主分类号 |
B01D21/01 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|