Separation of o-xylene from p-xylene and m-xylene by azeotropic
distillation
    21.
    发明授权
    Separation of o-xylene from p-xylene and m-xylene by azeotropic distillation 失效
    通过共沸蒸馏将邻二甲苯与对二甲苯和间二甲苯分离

    公开(公告)号:US5466345A

    公开(公告)日:1995-11-14

    申请号:US454624

    申请日:1995-05-31

    申请人: Lloyd Berg

    发明人: Lloyd Berg

    IPC分类号: C07C7/06 B01D3/36

    CPC分类号: C07C7/06

    摘要: o-Xylene cannot be separated from p-xylene and m-xylene by conventional distillation or rectification because of the proximity of their boiling points. o-Xylene can be readily separated from mixtures of p-xylene and m-xylene by azeotropic distillation. Effective agents are 3-methyl-1-butanol, methyl propionate and 3-pentanone.

    摘要翻译: 邻二甲苯不能通过常规蒸馏或精馏由于其沸点接近而与对二甲苯和间二甲苯分离。 通过共沸蒸馏,邻二甲苯可以容易地从对二甲苯和间二甲苯的混合物中分离出来。 有效剂是3-甲基-1-丁醇,丙酸甲酯和3-戊酮。

    Separation of 2-butanone from isopropanol by azeotropic distillation
    22.
    发明授权
    Separation of 2-butanone from isopropanol by azeotropic distillation 失效
    通过共沸蒸馏从异丙醇中分离出2-丁酮

    公开(公告)号:US5423954A

    公开(公告)日:1995-06-13

    申请号:US370391

    申请日:1995-01-09

    申请人: Lloyd Berg

    发明人: Lloyd Berg

    CPC分类号: C07C29/82 C07C31/10 C07C45/84

    摘要: 2-Butanone is difficult to separate from isopropanol by conventional distillation or rectification because of the proximity of their boiling points. 2-Butanone can be readily separated from isopropanol by azeotropic distillation. Effective agents are 3-methyl pentane, methyl t-amyl ether and acetonitrile.

    摘要翻译: 由于它们的沸点接近,2-丁酮难以通过常规蒸馏或精馏与异丙醇分离。 通过共沸蒸馏可以容易地将2-丁酮与异丙醇分离。 有效试剂是3-甲基戊烷,甲基叔戊基醚和乙腈。

    Separation of 1-butanol from 2-pentanol by azeotropic distillation
    23.
    发明授权
    Separation of 1-butanol from 2-pentanol by azeotropic distillation 失效
    通过共沸蒸馏从2-戊醇中分离出1-丁醇

    公开(公告)号:US5417813A

    公开(公告)日:1995-05-23

    申请号:US272805

    申请日:1994-07-11

    申请人: Lloyd Berg

    发明人: Lloyd Berg

    摘要: 1-Butanol is difficult to semarate from 2-pentanol by conventional distillation or rectification because of the proximity of their boiling points. 1-Butanol can be readily separated from 2-pentanol by azeotropic distillation. Effective agents are 1-octene, hexane and methyl cyclohexane.

    摘要翻译: 由于它们的沸点接近,常规蒸馏或精馏,1-丁醇难以从2-戊醇中分离出来。 通过共沸蒸馏可以容易地将2-丁醇与2-戊醇分离。 有效试剂是1-辛烯,己烷和甲基环己烷。

    Separation of 3-methyl-2-butanol from 1-butanol by azeotropic
distillation
    24.
    发明授权
    Separation of 3-methyl-2-butanol from 1-butanol by azeotropic distillation 失效
    通过共沸蒸馏从1-丁醇中分离3-甲基-2-丁醇

    公开(公告)号:US5407542A

    公开(公告)日:1995-04-18

    申请号:US305436

    申请日:1994-09-13

    申请人: Lloyd Berg

    发明人: Lloyd Berg

    IPC分类号: C07C29/82 B01D3/36

    CPC分类号: C07C29/82

    摘要: 3-Methyl-2-butanol is difficult to separate from 1-butanol by conventional distillation or rectification because of the proximity of their boiling points. 3-Methyl-2-butanol can be readily separated from 1-butanol by azeotropic distillation. Effective agents are methyl acetoacetate and dioxane.

    摘要翻译: 由于其沸点接近,常规蒸馏或精馏,3-甲基-2-丁醇难以与1-丁醇分离。 通过共沸蒸馏可以容易地将3-甲基-2-丁醇与1-丁醇分离。 有效剂是乙酰乙酸甲酯和二恶烷。

    Separation of 3-methyl-2-butanol from 2-pentanol by azeotropic
distillation
    25.
    发明授权
    Separation of 3-methyl-2-butanol from 2-pentanol by azeotropic distillation 失效
    通过共沸蒸馏从2-戊醇中分离3-甲基-2-丁醇

    公开(公告)号:US5407541A

    公开(公告)日:1995-04-18

    申请号:US305347

    申请日:1994-09-13

    申请人: Lloyd Berg

    发明人: Lloyd Berg

    IPC分类号: C07C29/82 B01D3/36

    CPC分类号: C07C29/82 C12C11/02

    摘要: 3-Methyl-2-butanol is difficult to separate from 2-pentanol by conventional distillation or rectification because of the proximity of their boiling points. 3-Methyl-2-butanol can be readily separated from 2-pentanol by azeotropic distillation. Effective agents are pentane, 2,2-dimethyl butane and dioxane.

    摘要翻译: 由于其沸点接近,常规蒸馏或精馏,3-甲基-2-丁醇难以与2-戊醇分离。 通过共沸蒸馏可以容易地将3-甲基-2-丁醇与2-戊醇分离。 有效剂是戊烷,2,2-二甲基丁烷和二恶烷。

    Separation of 1-octene from octane by azeotropic distillation
    26.
    发明授权
    Separation of 1-octene from octane by azeotropic distillation 失效
    通过共沸蒸馏从辛烷中分离1-辛烯

    公开(公告)号:US5382330A

    公开(公告)日:1995-01-17

    申请号:US209252

    申请日:1994-03-14

    申请人: Lloyd Berg

    发明人: Lloyd Berg

    IPC分类号: C07C7/06 B01D3/36

    CPC分类号: C07C7/06

    摘要: 1-Octene is difficult to separate from octane by conventional distillation or rectification because of the proximity of their boiling points. 1-Octene can be readily separated from octane by azeotropic distillation. Effective agents are ethyl formate, ethyl acetate and t-amyl methyl ether.

    摘要翻译: 由于它们的沸点接近,1-辛烯难以通过常规蒸馏或精馏与辛烷分离。 1-辛烯可以通过共沸蒸馏容易地从辛烷中分离出来。 有效剂是甲酸乙酯,乙酸乙酯和叔戊基甲基醚。

    Separation of octene-1 from its isomers by azeotropic and extractive
distillation
    27.
    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
    28.
    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 3-pentanone from formic acid by extractive distillation
    29.
    发明授权
    Separation of 3-pentanone from formic acid by extractive distillation 失效
    通过萃取蒸馏从甲酸中分离出3-戊酮

    公开(公告)号:US5228956A

    公开(公告)日:1993-07-20

    申请号:US955415

    申请日:1992-10-02

    IPC分类号: C07C45/83 C07C51/44

    CPC分类号: C07C45/83 C07C51/44

    摘要: 3-Pentanone cannot be completely removed from 3-pentanone and formic acid mixtures by distillation because of the presence of the maximum azeotrope. 3-Pentanone can be readily removed from 3-pentanone-formic acid mixtures by extractive distillation in which the extractive agent is cyclopentanone, either alone or admixed with certain high boiling organic compounds. Examples of effective agents are cyclopentanone; cyclopentanone and 2-methoxyethyl ether; cyclopentanone, adiponitrile and octanoic acid.

    摘要翻译: 由于存在最大的共沸物,3-戊酮不能通过蒸馏从3-戊酮和甲酸混合物中完全除去。 通过萃取蒸馏可以容易地从3-戊酮 - 甲酸混合物中除去3-戊酮,其中萃取剂是环戊酮,单独或与某些高沸点有机化合物混合。 有效试剂的实例是环戊酮; 环戊酮和2-甲氧基乙基醚; 环戊酮,己二腈和辛酸。

    Recovery of glycerine from mannitol, lactose or lactitol by azeotropic
distillation
    30.
    发明授权
    Recovery of glycerine from mannitol, lactose or lactitol by azeotropic distillation 失效
    通过共沸蒸馏从甘露醇,乳糖或乳糖中回收甘油

    公开(公告)号:US5198077A

    公开(公告)日:1993-03-30

    申请号:US794877

    申请日:1991-11-19

    申请人: Lloyd Berg

    发明人: Lloyd Berg

    IPC分类号: C07C29/82

    CPC分类号: C07C29/82 C07B2200/07

    摘要: Glycerine cannot be easily separated from mannitol, lactose or lactitol by atmospheric or reduced pressure distillation because of their high boiling points. Glycerine can be readily separated from mannitol, lactose or lactitol by azeotropic distillation. Typical effective agents are biphenyl, benzyl benzoate and dimethyl phthalate.

    摘要翻译: 由于其沸点高,甘油不能通过常压或减压蒸馏从甘露醇,乳糖或乳糖醇容易地分离。 甘油可以通过共沸蒸馏从甘露糖醇,乳糖或乳糖醇容易地分离。 典型的有效剂是联苯,苯甲酸苄酯和邻苯二甲酸二甲酯。