发明授权
- 专利标题： Process for treating aldehydes
- 专利标题（中）： 处理ALDEHYDES的方法
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申请号： US22932672申请日： 1972-02-25
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公开(公告)号： US3829379A公开(公告)日： 1974-08-13
- 发明人: ISHIDA S , OSHIMA N , KURITA K , SUZUKI I , OHNO H
- 申请人： ASAHI CHEMICAL IND
- 专利权人： Asahi Chemical Ind
- 当前专利权人： Asahi Chemical Ind
- 优先权： JP979471 1971-02-27; JP979571 1971-02-27; JP3292871 1971-05-18
- 主分类号： B01D53/72
- IPC分类号： B01D53/72 ; C02F1/66 ; C02C1/40
摘要：
A GAS OR SOLUTION CONTAINING ALDEHYDES SUCH AS FORMALDEHYDE, IS CONTACTED WITH A SULFITE OF ALKALI METALS OR AMMONIUM OR A MIXTURE OF 100 TO 5% BY WEIGHT OF THE SULFITE AND 0 TO 95% BY WEIGHT OF BISULFATE OF ALKALI METALS OR AMMONIUM, WHILE KEEPING PH OF A TREATING SYSTEM AT 6-
11, AND/OR THE RESULTING SOLUTION CAN BE SUBJECTED TO ACTIVATED SLUDGE TREATMENT.
11, AND/OR THE RESULTING SOLUTION CAN BE SUBJECTED TO ACTIVATED SLUDGE TREATMENT.
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