公开(公告)号：US5183538A

公开(公告)日：1993-02-02

申请号：US632721

申请日：1990-12-24

申请人： Lacey E. Scoggins ,  Fu M. Lee ,  Allen T. Chang ,  Wiley D. Perkins

发明人： Lacey E. Scoggins ,  Fu M. Lee ,  Allen T. Chang ,  Wiley D. Perkins

IPC分类号： B01D3/40 ,  C08G75/02 ,  C08G85/00

CPC分类号： C08G75/025 ,  C08G85/00 ,  Y02P20/125 ,  Y10S203/06

摘要： A method for recovering a liquid diluent having a low salt content from an organic/aqueous mixture which contains significant quantities of the diluent, an alkali metal salt, and water comprises an integrated process which joins extraction and ion exchange steps and a reaction for the conversion of an alkali metal hydroxide. In the initial step the diluent is extracted from the original mixture employing a suitable extractant material. The extract from the initial step containing diluent, extractant material, along with reduced quantities of water and salt, is passed to an ion exchange column for conversion of the alkali metal salt to its hydroxide. In a following fractional distillation dewatering column the diluent begins to react with the alkali metal hydroxide to form an alkali-metal salt of aminocarboxylic acid which can pass harmlessly through the dewatering column for removal in further following fractional distillation step.

公开(公告)号：US5055162A

公开(公告)日：1991-10-08

申请号：US526364

申请日：1990-05-21

申请人： Ronald E. Brown ,  Fu M. Lee ,  Michael S. Matson

发明人： Ronald E. Brown ,  Fu M. Lee ,  Michael S. Matson

IPC分类号： C07C7/08

CPC分类号： C07C7/08

摘要： Cycloalkanes, preferably cyclohexane and/or cyclopentane, are separated from close-boiling alkanes by extractive distillation employing as solvent a mixture of (a) at least one N-hydroxyalkyl-2-pyrrolidone, preferably N-(.beta.-hydroxyethyl)-2-pyrrolidone, and (b) at least one saturated C.sub.5 -C.sub.9 alcohol, preferably cyclohexanol.

摘要翻译： 使用（a）至少一种N-羟基烷基-2-吡咯烷酮，优选N-（β-羟基乙基）-2-吡咯烷酮的混合物作为溶剂，通过萃取蒸馏将环烷烃，优选环己烷和/或环戊烷与近沸点烷烃分离， 吡咯烷酮，和（b）至少一种饱和C 5 -C 9醇，优选环己醇。

公开(公告)号：US4955468A

公开(公告)日：1990-09-11

申请号：US404799

申请日：1989-09-08

申请人： Fu M. Lee

发明人： Fu M. Lee

IPC分类号： B01D3/40 ,  C07C7/08

CPC分类号： C07C7/08 ,  B01D3/40

摘要： An extractive distillation process for separating at least one cycloalkane or aromatic hydrocarbon from at least one close-boiling alkane employs as solvent at least one N-mercaptoalkyl-2-pyrrolidone, preferably N-(.beta.-mercaptoethyl)-2-pyrrolidone, either alone or in admixture with about 0.1-10 weight-% water.A liquid-liquid extraction process for separating at least one cycloalkane or aromatic hydrocarbon from at least one alkane employs as solvent at least one N-mercaptoalkyl-2-pyrrolidone, preferably N-(.beta.-mercaptoethyl)-2-pyrrolidone, either alone or in admixture with about 0.1-10 weight-% water.

摘要翻译： 用于从至少一个接近沸点烷烃分离至少一种环烷烃或芳族烃的萃取蒸馏方法使用至少一种N-巯基烷基-2-吡咯烷酮，优选N-（β-巯基乙基）-2-吡咯烷酮，单独使用 或与约0.1-10重量％的水混合。 用于从至少一种烷烃分离至少一种环烷烃或芳烃的液 - 液萃取方法使用至少一种N-巯基烷基-2-吡咯烷酮，优选N-（β-巯基乙基）-2-吡咯烷酮，单独使用或 与约0.1-10重量％的水混合。

公开(公告)号：US4846960A

公开(公告)日：1989-07-11

申请号：US206548

申请日：1988-06-14

申请人： Darrell W. Walker ,  Fu M. Lee

发明人： Darrell W. Walker ,  Fu M. Lee

IPC分类号： B01J29/076 ,  C10G11/05

CPC分类号： C10G11/05 ,  B01J29/076

摘要： A composition of matter, suitable as cracking catalyst, comprises zeolite, silica matrix and vanadium oxide(s) at a level of at least 0.2 weight-% V. A process for preparing the above composition of matter comprises the steps of contacting zeolite in a silica matrix with at least one vanadium compound and calcining the thus contacted material. A process for cracking substantially liquid hydrocarbon-containing feed streams, which contain at least about 5 ppmw vanadium, in the presence of the above composition of matter as catalyst, is provided.

摘要翻译： 适合作为裂化催化剂的物质组合物包含至少0.2重量％V的水平的沸石，二氧化硅基质和氧化钒。制备上述组合物的方法包括以下步骤：使沸石在 二氧化硅基质与至少一种钒化合物并煅烧由此接触的材料。 提供了一种在上述组成物质作为催化剂的情况下，裂解含有至少约5ppmw钒的基本上液体含烃的进料流的方法。

公开(公告)号：US4794095A

公开(公告)日：1988-12-27

申请号：US069553

申请日：1987-07-02

申请人： Darrell W. Walker ,  Fu M. Lee

发明人： Darrell W. Walker ,  Fu M. Lee

IPC分类号： B01J29/076 ,  C10G11/05 ,  B01J29/06 ,  B01J29/08

CPC分类号： C10G11/05 ,  B01J29/076

摘要： A composition of matter, suitable as cracking catalyst, comprises zeolite, silica matrix and vanadium oxide(s) at a level of at least 0.2 weight-% V. A process for preparing the above composition of matter comprises the steps of contacting zeolite in a silica matrix with at least one vanadium compound and calcining the thus contacted material. A process for cracking substantially liquid hydrocarbon-containing feed streams, which contain at least about 5 ppmw vanadium, in the presence of the above composition of matter as catalyst, is provided.

摘要翻译： 适合作为裂化催化剂的物质组合物包含至少0.2重量％V的水平的沸石，二氧化硅基质和氧化钒。制备上述组合物的方法包括以下步骤：使沸石在 二氧化硅基质与至少一种钒化合物并煅烧由此接触的材料。 提供了一种在上述组成物质作为催化剂的情况下，裂解含有至少约5ppmw钒的基本上液体含烃的进料流的方法。

公开(公告)号：US4954224A

公开(公告)日：1990-09-04

申请号：US404704

申请日：1989-09-08

申请人： Ronald E. Brown ,  Fu M. Lee

发明人： Ronald E. Brown ,  Fu M. Lee

IPC分类号： C07C7/08

CPC分类号： C07C7/08

摘要： Cycloalkanes (preferably cyclopentane and/or cyclohexane) are separated from close-boiling alkanes by extractive distillation employing as solvent a mixture of (a) at least one N-mercaptoalkyl-2-pyrrolidone (preferably N-mercaptoethyl-2-pyrrolidone) and (b1) at least one N-alkyl-2-pyrrolidone (preferably N-methyl-2-pyrrolidone) and/or (b2) at least one saturated C.sub.5 -C.sub.9 alcohol (preferably cyclohexanol).

摘要翻译： 使用（a）至少一种N-巯基烷基-2-吡咯烷酮（优选N-巯基乙基-2-吡咯烷酮）和（a）的混合物作为溶剂，通过萃取蒸馏法将环烷烃（优选环戊烷和/或环己烷） b1）至少一种N-烷基-2-吡咯烷酮（优选N-甲基-2-吡咯烷酮）和/或（b2）至少一种饱和C 5 -C 9醇（优选环己醇）。

公开(公告)号：US4859781A

公开(公告)日：1989-08-22

申请号：US319015

申请日：1989-03-03

申请人： Fu M. Lee ,  Joseph G. Ceurvorst

发明人： Fu M. Lee ,  Joseph G. Ceurvorst

IPC分类号： B01D11/04 ,  C07D207/26 ,  C07D207/267 ,  C08G75/02 ,  C08G75/06

CPC分类号： C07D207/267

摘要： In a process for recovery N-methyl-2-pyrrolidone from a liquid aqueous medium (preferably a brine) by liquid-liquid extraction, the improvement comprises using a branched aliphatic C5-C7 alcohol as extractant. In a particular embodiment, the liquid aqueous medium is an effluent from a poly(arylene sulfide) process.

公开(公告)号：US4948470A

公开(公告)日：1990-08-14

申请号：US378739

申请日：1989-07-12

申请人： Fu M. Lee

发明人： Fu M. Lee

IPC分类号： C07C7/08

CPC分类号： C07C7/08

摘要： A mixture of (a) at least one N-alkyl-2-pyrrolidone (preferably N-methyl-2-pyrrolidone) and (b) at least one sulfolane (preferably unsubstituted sulfolane) is used as solvent in the extractive distillation of feed mixture of cycloalkane(s) (in particular cyclohexane) and close-boiling alkane(s).

摘要翻译： 在进料混合物的萃取蒸馏中使用（a）至少一种N-烷基-2-吡咯烷酮（优选N-甲基-2-吡咯烷酮）和（b）至少一种环丁砜（优选未取代的环丁砜）的混合物作为溶剂 的环烷烃（特别是环己烷）和近沸点烷烃。

公开(公告)号：US4607129A

公开(公告)日：1986-08-19

申请号：US742678

申请日：1985-06-10

申请人： Fu M. Lee

发明人： Fu M. Lee

IPC分类号： C07C5/32 ,  C07C5/333 ,  C07C5/41 ,  C07C5/42

CPC分类号： C07C5/3332 ,  C07C5/322 ,  C07C5/412 ,  Y02P20/584

摘要： A process is provided for converting alkanes and cycloalkanes having up to 20 carbon atoms per molecule to a product comprising hydrogen gas and dehydrogenated and/or dehydrocyclized hydrocarbons, in the presence of a catalyst composition comprising divanadium pentoxide and silica. In one embodiment, a substantially deactivated catalyst composition is regenerated by contacting it with a free oxygen containing gas under suitable regeneration conditions. In another embodiment, a catalyst composition comprising divanadium pentoxide and silica is provided.

摘要翻译： 提供了一种方法，用于在包含五氧化二钒和二氧化硅的催化剂组合物的存在下，将每分子具有至多20个碳原子的烷烃和环烷烃转化成包含氢气和脱氢和/或脱氢环化的烃的产物。 在一个实施方案中，基本上失活的催化剂组合物通过在合适的再生条件下与含游离氧的气体接触来再生。 在另一个实施方案中，提供了包含五氧化二钒和二氧化硅的催化剂组合物。

公开(公告)号：US5141624A

公开(公告)日：1992-08-25

申请号：US331995

申请日：1989-03-30

申请人： Ping-Chau Liao ,  Douglas D. Klendworth ,  Fu M. Lee

发明人： Ping-Chau Liao ,  Douglas D. Klendworth ,  Fu M. Lee

IPC分类号： C10G11/05

CPC分类号： C10G11/05

摘要： A catalytic process for cracking vanadium-containing oils employs a physical mixture of (a) zeolite embedded in an inorganic matrix material and (b) magnesium oxide on alumina support.

摘要翻译： 用于裂解含钒油的催化方法采用（a）嵌入无机基体材料中的沸石和（b）氧化铝载体上的氧化镁的物理混合物。