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公开(公告)号:US4872991A
公开(公告)日:1989-10-10
申请号:US214981
申请日:1988-07-05
申请人: Craig R. Bartels , Tansukhlal G. Dorawala , Michael T. Stephenson , Mordechai Pasternak , John Reale, Jr.
发明人: Craig R. Bartels , Tansukhlal G. Dorawala , Michael T. Stephenson , Mordechai Pasternak , John Reale, Jr.
CPC分类号: C08G69/26 , B01D17/0208 , B01D69/125 , B01D71/56 , C02F1/442
摘要: Aqueous liquor containing immiscible hydrocarbon liquid, such as produced water from an offshore petroleum drilling platform, is treated by gravity separation, skimming, and nanofiltration.
摘要翻译: 含有不混溶烃液体的含水液体,例如来自海上石油钻井平台的生产水,通过重力分离,撇取和纳滤处理。
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公开(公告)号:US4960519A
公开(公告)日:1990-10-02
申请号:US421878
申请日:1989-10-16
IPC分类号: B01D61/36 , B01D69/12 , B01D71/38 , B01D71/40 , C07C7/144 , C07C27/26 , C07C29/76 , C07C41/36 , C07C45/78 , C07C68/08
CPC分类号: C07C68/08 , B01D61/362 , B01D69/12 , B01D69/125 , B01D71/38 , B01D71/40 , C07C29/76 , C07C41/36 , C07C45/786
摘要: A mixture of alcohol, such as methanol, and organic oxygenate, such as dimethyl carbonate, is treated to recover product of decreased methanol content by pervaporation across a composite membrane of a polyvinyl alcohol and a polyacrylic acid on a polyacrylonitrile support layer.
摘要翻译: 处理醇如甲醇和有机含氧化合物如碳酸二甲酯的混合物,以通过聚丙烯腈载体层上的聚乙烯醇和聚丙烯酸复合膜的渗透蒸发来回收甲醇含量降低的产物。
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公开(公告)号:US4935144A
公开(公告)日:1990-06-19
申请号:US304691
申请日:1989-02-01
CPC分类号: B01D61/362 , B01D69/125 , B01D71/38 , C07C29/76 , C07C45/786
摘要: Water is separated from methyl isobutyl ketone by pervaporation across a polyvinyl alcohol membrane.
摘要翻译: 水通过渗透蒸发穿过聚乙烯醇膜与甲基异丁基酮分离。
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公开(公告)号:US4877529A
公开(公告)日:1989-10-31
申请号:US222871
申请日:1988-07-22
CPC分类号: B01D67/0093 , B01D61/362 , B01D71/38 , C07C29/76 , C07C41/36 , C07C45/786 , C07C68/08 , B01D2323/30
摘要: Mixtures containing methanol and dimethyl carbonate or methanol and methyl t-butyl ether may be treated by pervaporation to cover product containing decreased quantity of methanol.
摘要翻译: 含有甲醇和碳酸二甲酯或甲醇和甲基叔丁基醚的混合物可以通过渗透蒸发处理以覆盖含有降低量的甲醇的产物。
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公开(公告)号:US5004861A
公开(公告)日:1991-04-02
申请号:US214987
申请日:1988-07-05
CPC分类号: B01D61/362 , B01D69/12 , B01D69/125 , B01D71/38 , B01D71/40 , C07C7/144
摘要: Water is separated from an MEK toluene dewaxing solvent by pervaporation through a polyvinyl alcohol membrane (optionally containing polyacrylic acid) mounted on a polyacrylonitrile support layer.
摘要翻译: 通过渗透汽化通过安装在聚丙烯腈载体层上的聚乙烯醇膜(任选地含有聚丙烯酸)将水与MEK甲苯脱蜡溶剂分离。
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公开(公告)号:US4910344A
公开(公告)日:1990-03-20
申请号:US304688
申请日:1989-02-01
CPC分类号: B01D61/362 , B01D69/125 , B01D71/38 , B01D71/40 , C07C29/76 , C07C45/786
摘要: Aqueous compositions containing organic oxygenates such as methyl isobutyl ketone are treated by pervaporation through a polyvinyl alcohol/polyacrylic acid membrane to yield retentate containing increased concentration of oxygenate.
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公开(公告)号:US4798674A
公开(公告)日:1989-01-17
申请号:US166575
申请日:1988-03-10
IPC分类号: B01D61/36 , B01D67/00 , B01D69/02 , B01D71/38 , B01D71/82 , C07B63/00 , C07C27/00 , C07C27/26 , C07C29/76 , C07C31/04 , C07C41/00 , C07C41/36 , C07C41/40 , C07C43/04 , C07C45/00 , C07C45/78 , C07C67/00 , C07C67/48 , C07C68/08 , B01D13/00
CPC分类号: B01D67/0093 , B01D61/362 , B01D71/38 , C07C29/76 , C07C41/36 , C07C45/786 , C07C68/08 , B01D2323/30
摘要: Mixtures containing methanol and dimethyl carbonate or methanol and methyl t-butyl ether may be treated by pervaporation to recover product containing decreased quantity of methanol.
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公开(公告)号:US5182022A
公开(公告)日:1993-01-26
申请号:US717764
申请日:1991-06-19
CPC分类号: B01D67/0093 , B01D61/362 , B01D71/26 , B01D71/32 , C07C29/76 , Y10S159/27
摘要: Charge aqueous solution containing 85 w % ethylene glycol is concentrated by pervaporation across a sulfonated polyethylene membrane to yield retentate containing 95 w % ethylene glycol.
摘要翻译: 含有85w%乙二醇的电荷水溶液通过渗透蒸发浓缩在磺化聚乙烯膜上,得到含95w%乙二醇的滞留物。
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公开(公告)号:US4982051A
公开(公告)日:1991-01-01
申请号:US467077
申请日:1990-01-18
IPC分类号: B01D61/36 , B01D71/58 , C07D307/48 , C10G21/28 , C10G29/24 , C10G31/11 , C10G53/04 , C10L1/00
摘要: A furfural-containing middle distillate stream is separated by use of a polyethyleneimine membrane which has been cross-linked with a polyisocyanate or a poly(carbonyl chloride) cross-linking agent.
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公开(公告)号:US5160046A
公开(公告)日:1992-11-03
申请号:US793900
申请日:1991-11-18
申请人: Mordechai Pasternak
发明人: Mordechai Pasternak
CPC分类号: B01D61/362 , B01D69/125 , C07C29/76
摘要: Aqueous solutions of organic oxygenates, typified by concentrated aqueous solutions of ethanol or isopropanol, are dewatered by pervaporation through a polyimine membrane which has been interfacially cross-linked with a polyisocyanate or a poly(carbonyl chloride).
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