Separation of hexane from vinyl acetate by azeotropic distillation
    1.
    发明授权
    Separation of hexane from vinyl acetate by azeotropic distillation 失效
    通过共沸蒸馏将己烷与乙酸乙烯酯分离

    公开(公告)号:US5256259A

    公开(公告)日:1993-10-26

    申请号:US38497

    申请日:1993-03-29

    CPC分类号: C07C7/06 C07C67/54 Y10S203/10

    摘要: Hexane cannot be separated from vinyl acetate by conventional distillation or rectification because of the minimum boiling azeotrope. Hexane can be readily separated from vinyl acetate by using azeotropic distillation. Typical examples of effective agents are acetone, acetonitrile or methyl t-butyl ether.

    摘要翻译: 由于最低沸点共沸物,己烷不能通过常规蒸馏或精馏与乙酸乙烯酯分离。 通过共沸蒸馏可以容易地将己烷与乙酸乙烯酯分离。 有效试剂的典型例子是丙酮,乙腈或甲基叔丁基醚。

    Separation of octene-1 from its isomers by azeotropic and extractive
distillation
    2.
    发明授权
    Separation of octene-1 from its isomers by azeotropic and extractive distillation 失效
    通过共沸和萃取蒸馏分离辛烯-1与其异构体

    公开(公告)号:US5262015A

    公开(公告)日:1993-11-16

    申请号:US24277

    申请日:1993-02-26

    CPC分类号: C07C7/06 C07C7/08

    摘要: Octene-1 is difficult to separate from several of its isomers by conventional distillation or rectification because of the closeness of their boiling points. Octene-1 can be readily separated from its close boiling isomers by azeotropic or extractive distillation. Effective agents are: for azeotropic distillation, t-amyl methyl ether; for extractive distillation, isophorone.

    摘要翻译: 由于其沸点接近,辛烷-1难以通过常规的蒸馏或精馏从其几种异构体中分离出来。 通过共沸或萃取蒸馏可以容易地将辛烯-1与其接近沸点的异构体分离。 有效试剂是:用于共沸蒸馏,叔戊基甲基醚; 用于萃取蒸馏,异佛尔酮。

    Separation of toluene from methyl isobutyl ketone by azeotropic
distillation
    3.
    发明授权
    Separation of toluene from methyl isobutyl ketone by azeotropic distillation 失效
    通过共沸蒸馏从甲基异丁基酮中分离出甲苯

    公开(公告)号:US5250157A

    公开(公告)日:1993-10-05

    申请号:US20397

    申请日:1993-02-22

    IPC分类号: C07C7/06 C07C45/84 B01D3/36

    CPC分类号: C07C7/06 C07C45/84

    摘要: Toluene cannot be separated from methyl isobutyl ketone by conventional distillation or rectification because of the minimum boiling azeotrope. Toluene can be readily separated from methyl isobutyl ketone by using azeotropic distillation. Typical examples of effective agents are 1-butanol, 2-methoxyethanol and n-heptane.

    摘要翻译: 由于最低沸点的共沸物,甲苯不能通过常规蒸馏或精馏从甲基异丁基酮中分离出来。 通过共沸蒸馏可以容易地将甲苯与甲基异丁基酮分离。 有效试剂的典型实例是1-丁醇,2-甲氧基乙醇和正庚烷。

    Separation of formic acid from acetic acid by azeotropic distillation
    4.
    发明授权
    Separation of formic acid from acetic acid by azeotropic distillation 失效
    通过共沸蒸馏分离甲酸与乙酸

    公开(公告)号:US5264086A

    公开(公告)日:1993-11-23

    申请号:US11242

    申请日:1993-01-29

    IPC分类号: C07C51/46 B01D3/36

    CPC分类号: C07C51/46

    摘要: Formic acid difficult to separate from acetic acid by conventional distillation or rectification because of the close proximity of their boiling points. Formic acid can be readily separated from acetic acid by using azeotropic distillation. Effective agents are cyclopentane and tetrachloroethylene.

    摘要翻译: 由于沸点接近,常规蒸馏或精馏,甲酸难以与乙酸分离。 通过共沸蒸馏可以容易地将甲酸与乙酸分离。 有效剂是环戊烷和四氯乙烯。

    Separation of vinyl acetate from methyl acrylate by extractive
distillation
    5.
    发明授权
    Separation of vinyl acetate from methyl acrylate by extractive distillation 失效
    通过萃取蒸馏从丙烯酸甲酯中分离乙酸乙烯酯

    公开(公告)号:US5240567A

    公开(公告)日:1993-08-31

    申请号:US41868

    申请日:1993-04-02

    IPC分类号: C07C67/54

    摘要: The separation of vinyl acetate from methyl acrylate by distillation is difficult because of the closeness of their boiling points. Vinyl acetate can be readily removed from methyl acrylate by extractive distillation. Typical effective agents are phenol, methoxyethanol and isobutyl vinyl ether.

    摘要翻译: 通过蒸馏从丙烯酸甲酯中分离乙酸乙烯酯是困难的,因为它们的沸点接近。 乙酸乙烯酯可以通过萃取蒸馏容易地从丙烯酸甲酯中除去。 典型的有效剂是苯酚,甲氧基乙醇和异丁基乙烯基醚。

    Separation of hexane from vinyl acetate and methyl acrylate by
extractive distillation
    7.
    发明授权
    Separation of hexane from vinyl acetate and methyl acrylate by extractive distillation 失效
    通过萃取蒸馏分离己烷与乙酸乙烯酯和丙烯酸甲酯

    公开(公告)号:US5236559A

    公开(公告)日:1993-08-17

    申请号:US8356

    申请日:1993-01-22

    IPC分类号: C07C7/08

    摘要: Hexane cannot be removed from hexane--vinyl acetate--methyl acrylate mixtures because of the ternary azeotrope. Hexane can be readily removed from hexane--vinyl acetate--methyl acrylate mixtures by extractive distillation. Typical effective agents are phenol, diethylene glycol methyl ether and 2-nitropropane.

    摘要翻译: 由于三元共沸物,己烷 - 乙酸乙烯酯 - 丙烯酸甲酯混合物不能除去己烷。 通过萃取蒸馏可以将己烷容易地从己烷 - 乙酸乙烯酯 - 丙烯酸甲酯混合物中除去。 典型的有效剂是苯酚,二甘醇甲醚和2-硝基丙烷。

    Separation of formic acid from acetic acid by extractive distillation
    8.
    发明授权
    Separation of formic acid from acetic acid by extractive distillation 失效
    通过萃取蒸馏从甲酸中分离甲酸

    公开(公告)号:US5227029A

    公开(公告)日:1993-07-13

    申请号:US011233

    申请日:1993-01-29

    IPC分类号: C07C51/44

    CPC分类号: C07C51/44

    摘要: Formic acid cannot be easily removed from formic acid-acetic acid mixtures by distillation because of the closeness of their boiling points. Formic acid can be readily removed from mixtures containing it and acetic acid by extractive distillation. Typical effective agents are 2-nitrotoluene, 1-nitropropane and m-nitrobenzoic acid.

    摘要翻译: 由于沸点接近,甲酸不能通过蒸馏从甲酸 - 乙酸混合物中很容易地除去。 通过萃取蒸馏可以容易地从含有它的混合物和乙酸中除去甲酸。 典型的有效剂是2-硝基甲苯,1-硝基丙烷和间硝基苯甲酸。

    Separation of N-hexane from vinyl acetate by extractive distillation
    9.
    发明授权
    Separation of N-hexane from vinyl acetate by extractive distillation 失效
    通过萃取蒸馏从乙酸乙烯中分离出正己烷

    公开(公告)号:US5225050A

    公开(公告)日:1993-07-06

    申请号:US991348

    申请日:1992-12-15

    IPC分类号: C07C7/08 C07C67/54

    CPC分类号: C07C7/08 C07C67/54

    摘要: Hexane cannot be removed from hexane - vinyl acetate mixtures by distillation because of the minimum boiling azeotrope. Hexane can be readily removed from vinyl acetate by extractive distillation. Typical effective agents are phenol, 1-nitropropane and benzyl alcohol.

    摘要翻译: 由于最低沸点的共沸物,不能通过蒸馏从己烷 - 乙酸乙烯酯混合物中除去己烷。 通过萃取蒸馏可以容易地从乙酸乙烯酯中除去己烷。 典型的有效剂是苯酚,1-硝基丙烷和苄醇。