| Original document(11 pages) 中文版 |
A process for treating paper-making black liquor and recovering alkali and lignin by the electroosmosis method features that a semi-penetrating membrane is arranged in the electrolyzing chamber of an electroosmosis treater to divide it into a negative electrode chamber and a positive electrode chamber, the clean water and the paper-making black liquor flow respectively through the said two chambers, the alkali solution is discharged from the negative electrode chamber, and the Al-ion precipitant is added to the liquid discharged from positive electrode chamber for obtaining the organic substance containing lignin and clean water after separation. |
Application Number
申请号 |
02113761 |
Application Date
申请日 |
2002.05.21 |
| Title 名称 |
Method of treating papermaking black liquid and recovery alkali and lignin using electroosmosis method
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Publication Number
公开号 |
1459420 |
Publication Date
公开日 |
2003.12.03 |
| Approval Pub. Date |
|
Granted Pub. Date |
|
| International Classification 分类号 |
C02F1/469,D21C11/00,D21C11/04 |
Applicant(s) Name
申请人 |
Chuantou Boshi Innovation Science and Technology Development Co., Ltd., Sichuan |
| Address 地址 |
610041 |
| Inventor(s) Name 发明人 |
Shu Xu |
| Attorney & Agent 代理人 |
huang shouyi |
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