发明名称 |
Process for refining heat-deteriorative compound, contained in multi-component liquid mixture, by distillation |
摘要 |
A heat-deteriorative compound contained in a liquid mixture is refined by a distillation procedure using a distillation column in which a vapor fraction and a liquid fraction containing the heat-deteriorative compound are generated from the liquid mixture, and a liquid film-falling reboiler in which the liquid fraction falls in the form of liquid films along inner surfaces of a plurality of vertical heat-conductive pipes at a Reynolds number (Re) of 700 to 10,000 and heated to a temperature lower than the heat-deterioration temperature of the heat deteriorative compound to such an extent that 1 to 15% by weight of the liquid fraction is evaporated per pass through the reboiler, the heated liquid fraction being returned into the distillation column to generate the vapor fraction from the liquid mixture fed into the distillation column.
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申请公布号 |
US6336997(B1) |
申请公布日期 |
2002.01.08 |
申请号 |
US19990241557 |
申请日期 |
1999.02.01 |
申请人 |
UBE INDUSTRIES, LTD. |
发明人 |
INABA YUKIO;FUJITA KAZUNORI;KOFUJI HIROSHI |
分类号 |
B01D3/14;B01D3/32;(IPC1-7):B01D3/28;B01D3/42 |
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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