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公开(公告)号:US20020000366A1
公开(公告)日:2002-01-03
申请号:US09938012
申请日:2001-08-23
发明人: Vijai P. Gupta
IPC分类号: B01D003/38 , C07C007/05 , C07C027/28 , C07C041/42
CPC分类号: C07C29/84 , B01D3/40 , C07B63/00 , C07C41/42 , Y10S203/11 , C07C43/11 , C07C31/205 , C07C31/202
摘要: A distillation procedure is provided for the separation of impurities from organic materials such as glycols and glycol ethers whereby a liquid stripping component is interfaced into a distillation column with or below the organic material introduction, heat being provided by a reboiler, the stripping component and impurities being removed overhead.
摘要翻译: 提供了一种蒸馏方法,用于从有机材料如二醇和二醇醚中分离杂质,由此将液体汽提组分与有机材料导入或低于有机材料导入的蒸馏塔相接口,由再沸器提供的热量,汽提组分和杂质 被清除。
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公开(公告)号:US20020038059A1
公开(公告)日:2002-03-28
申请号:US09924475
申请日:2001-08-09
发明人: Rudolf Erich Lorenz , Arnd Bottcher , Rolf Pinkos
IPC分类号: B01D003/00 , C07C29/84 , C07C041/42
CPC分类号: C07D231/12 , C07B63/00 , C07C41/42 , C07C209/84 , C07D223/10 , C07D233/56 , C07D249/08 , C07C211/21 , C07C43/16
摘要: A process for purifying alkenyl compounds having a divalent or trivalent heteroatom in the null-position relative to the double bond by distillation comprises carrying out at least two distillations in which the purified alkenyl compounds are obtained from the gas phase by condensation, where the time between the first distillation after the synthesis of the alkenyl compounds and at least one further distillation is at least one day and the purified alkenyl compounds have an APHA color number of
摘要翻译: 通过蒸馏纯化在相对于双键的α位具有二价或三价杂原子的烯基化合物的方法包括进行至少两次蒸馏,其中通过冷凝从气相中获得纯化的链烯基化合物,其中, 在合成烯基化合物之后的第一次蒸馏和至少一次进一步的蒸馏是至少一天,并且纯化的烯基化合物的APHA颜色数目<30。
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