发明名称 |
Desalting aqueous streams via filled cell electrodialysis |
摘要 |
<p>The invention is a process for desalting aqueous solutions, which are initially acidified to a pH of about 3 or less. Then, the acidified solution is fed into a desalting compartment of an electrodeionization cell which contains a suitable ion exchange material and is isolated from an adjacent concentrating compartments by an anion and a cation exchange membrane. The concentrate compartment contains a netting or another suitable material that promotes turbulence in a flowing feed stream. Water is supplied to the concentrate compartment. A DC current passes through the electrodeionization cell to produce a substantial desalination of the feed solution. A less acidic desalted solution and a concentrate waste solution are withdrawn from the electrodeionization cell.</p> |
申请公布号 |
EP1233004(A1) |
申请公布日期 |
2002.08.21 |
申请号 |
EP20020006516 |
申请日期 |
1998.11.11 |
申请人 |
ARCHER DANIELS MIDLAND COMPANY |
发明人 |
MANI, KRISHNAMURITY N. |
分类号 |
B01D61/44;B01D61/48;B01D61/52;B01D61/54;B01D61/58;C02F1/00;C02F1/28;C02F1/42;C02F1/44;C02F1/46;C02F1/469;C02F9/00;C13B20/18;(IPC1-7):C02F1/469;C13D3/18 |
主分类号 |
B01D61/44 |
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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