发明名称 |
METHOD FOR REMOVING ORGANIC COMPOUND IN WATER |
摘要 |
The present invention provides a method for removing an organic compound in water at a high efficiency by separating an organic compound, particularly such an organic chlorine compound as 1,2-dichloroethane, carbon tetrachloride and chloroform dissolved in water or forming two liquid phases with water from a water phase, by the steps of: (i) charging water containing an organic compound into a first distillation column for conducting distillation or steam distillation to take the organic compound and water out of the top of the first distillation column and to obtain a bottom liquor containing the organic compound at a lower content from the bottom of the first distillation column, and (ii) charging the bottom liquor of the first distillation column into a second distillation column operated at a pressure lower than that in the first distillation column for conducting distillation, preferably flashing under reduced pressure, to take a gas distillate containing a large amount of the organic compound out of the top of the second distillation column and to obtain a bottom liquor containing the organic compound at such a content as to be lower than the organic compound content in the charged liquor from the bottom of the second distillation column. |
申请公布号 |
KR100205846(B1) |
申请公布日期 |
1999.07.01 |
申请号 |
KR19940037560 |
申请日期 |
1994.12.27 |
申请人 |
MITSUBISHI CHEMICAL CORPORATION |
发明人 |
YAMAMOTO, SHINJI;ITOYAMA, KAZUTOSHI;FUJIMAKI, SEIICHI |
分类号 |
B01D3/14;C02F1/04;C07C17/38 |
主分类号 |
B01D3/14 |
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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