Separation of tertiary butyl alcohol from water by azeotropic or
extractive distillation
    1.
    发明授权
    Separation of tertiary butyl alcohol from water by azeotropic or extractive distillation 失效
    通过共沸或萃取蒸馏将叔丁醇与水分离

    公开(公告)号:US5084142A

    公开(公告)日:1992-01-28

    申请号:US658504

    申请日:1991-02-21

    申请人: Lloyd Berg Zuyin Yang

    发明人: Lloyd Berg Zuyin Yang

    IPC分类号: C07C29/82 C07C29/84

    CPC分类号: C07C29/82 C07C29/84

    摘要: t-Butyl alcohol cannot be completely separated from water by conventional distillation or rectification because of the minimum boiling azeotrope. t-Butyl alcohol can be readily separated from water by using azeotropic or extractive distillation. Typical examples of effective agents are: by azeotropic distillation, vinyl n-butyl ether and propylene glycol dimethyl ether; by extractive distillation, 1,3-butanediol and triethylene glycol.

    摘要翻译: 由于最低沸点的共沸物,叔丁醇不能通过常规蒸馏或精馏而完全与水分离。 通过使用共沸或萃取蒸馏,可以容易地将叔丁醇与水分离。 有效试剂的典型实例是:通过共沸蒸馏,乙烯基正丁基醚和丙二醇二甲醚; 通过萃取蒸馏,1,3-丁二醇和三甘醇。

    Separation of methylene chloride from ethyl vinyl ether by extractive
distillation
    2.
    发明授权
    Separation of methylene chloride from ethyl vinyl ether by extractive distillation 失效
    通过萃取蒸馏从乙基乙烯基醚中分离出二氯甲烷

    公开(公告)号:US5124005A

    公开(公告)日:1992-06-23

    申请号:US690770

    申请日:1991-04-25

    申请人: Zuyin Yang Lloyd Berg

    发明人: Zuyin Yang Lloyd Berg

    IPC分类号: C07C17/38 C07C41/42

    CPC分类号: C07C17/38 C07C41/42

    摘要: Methylene chloride cannot be completely separated from ethyl vinyl ether by conventional distillation or rectification because of the minimum boiling azeotrope. Methylene chloride can be readily separated from ethyl vinyl ether by extractive distillation. Typical effective agents are ethylene glycol methyl ether acetate, 2-hexanone and 1-nitropropane.

    摘要翻译: 由于最低沸点的共沸物,二氯甲烷不能通过常规的蒸馏或精馏与乙基乙烯醚完全分离。 通过萃取蒸馏可以将二氯甲烷容易地与乙基乙烯基醚分离。 典型的有效剂是乙二醇甲基醚乙酸酯,2-己酮和1-硝基丙烷。

    Separation of pyridine from water by extractive distillation
    3.
    发明授权
    Separation of pyridine from water by extractive distillation 失效
    通过萃取蒸馏从吡啶中分离吡啶

    公开(公告)号:US5100514A

    公开(公告)日:1992-03-31

    申请号:US663439

    申请日:1991-03-01

    申请人: Lloyd Berg Zuyin Yang

    发明人: Lloyd Berg Zuyin Yang

    IPC分类号: B01D3/36 B01D3/40 C07D213/06

    CPC分类号: C07D213/06 B01D3/36 B01D3/40

    摘要: Pyridine cannot be completely separated from water by conventional distillation or rectification because of the minimum boiling azeotrope. Pyridine can be readily separated from water by using azeotropic or extractive distillation. Typical examples of effective agents are: by azeotropic distillation, methyl isoamyl ketone and propylene glycol dimethyl ether; by extractive distillation, isophorone and sulfolane.

    摘要翻译: 由于最低沸点的共沸物,吡啶不能通过常规的蒸馏或精馏与水完全分离。 可以通过共沸或萃取蒸馏将吡啶容易地与水分离。 有效试剂的典型实例是:通过共沸蒸馏,甲基异戊基酮和丙二醇二甲醚; 通过萃取蒸馏,异佛尔酮和环丁砜。

    Separation of tetrachloroethylene from the lower alcohols by extractive
distillation
    4.
    发明授权
    Separation of tetrachloroethylene from the lower alcohols by extractive distillation 失效
    通过萃取蒸馏从低级醇中分离出四氯乙烯

    公开(公告)号:US5207876A

    公开(公告)日:1993-05-04

    申请号:US822141

    申请日:1992-01-17

    申请人: Lloyd Berg Zuyin Yang

    发明人: Lloyd Berg Zuyin Yang

    IPC分类号: C07C17/38

    CPC分类号: C07C17/38

    摘要: Tetrachloroethylene cannot be completely separated from methanol, ethanol, 1-propanol, isopropanol, 1-butanol, 2-butanol, isobutanol, 1-pentanol, 2-pentanol, 3-methyl-1-butanol or t-amyl alcohol by conventional distillation or rectification because of the minimum boiling azeotropes. Tetrachloroethylene can be readily separated from these alcohols by extractive distillation. A typical effective agent is dimethylsulfoxide.

    摘要翻译: 四氯乙烯不能通过常规蒸馏或甲醇,乙醇,1-丙醇,异丙醇,1-丁醇,2-丁醇,异丁醇,1-戊醇,2-戊醇,3-甲基-1-丁醇或叔戊醇完全分离, 由于最低沸点共沸物的整流。 通过萃取蒸馏可以容易地将四氯乙烯与这些醇分离。 典型的有效剂是二甲基亚砜。

    Separation of chloroform from a lower alcohol by extractive distillation
    5.
    发明授权
    Separation of chloroform from a lower alcohol by extractive distillation 失效
    通过萃取蒸馏从低级醇中分离出氯仿

    公开(公告)号:US5131985A

    公开(公告)日:1992-07-21

    申请号:US709615

    申请日:1991-06-03

    申请人: Lloyd Berg Zuyin Yang

    发明人: Lloyd Berg Zuyin Yang

    IPC分类号: C07C17/38

    CPC分类号: C07C17/38

    摘要: Chloroform cannot be completely separated from methanol, ethanol or isopropanol by conventional distillation or rectification because of the minimum boiling azeotrope between chloroform and the alcohols. Chloroform can be readily separated from methanol, ethanol or isopropanol by extractive distillation. Typical effective agents are: for methanol, isopropanol or 4-methyl-2-pentanone; for ethanol, n-butanol or isobutyl acetate; for isopropanol, butyl acetate or ethylene glycol ethyl ether.

    摘要翻译: 由于氯仿和醇之间沸腾的共沸物沸点最低,常规蒸馏或精馏,氯仿不能与甲醇,乙醇或异丙醇完全分离。 通过萃取蒸馏可以容易地将氯仿与甲醇,乙醇或异丙醇分离。 典型的有效试剂是:甲醇,异丙醇或4-甲基-2-戊酮; 用于乙醇,正丁醇或乙酸异丁酯; 用于异丙醇,乙酸丁酯或乙二醇乙醚。

    Separation of the propyl alcohols from water by azeotropic or extractive
distillation
    6.
    发明授权
    Separation of the propyl alcohols from water by azeotropic or extractive distillation 失效
    通过共沸或萃取蒸馏将丙醇与水分离

    公开(公告)号:US5085739A

    公开(公告)日:1992-02-04

    申请号:US648025

    申请日:1991-01-30

    申请人: Lloyd Berg Zuyin Yang

    发明人: Lloyd Berg Zuyin Yang

    IPC分类号: C07C29/82 C07C29/84

    CPC分类号: C07C29/82 C07C29/84 C12C11/02

    摘要: Isopropanol and n-propanol cannot be completely separated from water by conventional distillation or rectification because of the minimum boiling azeotrope. Isopropanol and n-propanol can be readily separated from water by using azeotropic or extractive distillation. Typical examples of effective agents are: for isopropanol by azeotropic distillation, vinyl n-butyl ether; by extractive distillation, polyethylene glycol; for n-propanol by azeotropic distillation, amyl formate; by extractive distillation, n-butyl acetate.

    摘要翻译: 由于最低沸点共沸物,异丙醇和正丙醇不能通过常规的蒸馏或精馏与水完全分离。 通过共沸或萃取蒸馏,异丙醇和正丙醇可以容易地与水分离。 有效试剂的典型实例是:通过共沸蒸馏用于异丙醇,乙烯基正丁基醚; 通过萃取蒸馏,聚乙二醇; 通过共沸蒸馏正丙醇;甲酸戊酯; 通过萃取蒸馏,乙酸正丁酯。

    Separation of methylene chloride from n-pentane by extractive
distillation
    7.
    发明授权
    Separation of methylene chloride from n-pentane by extractive distillation 失效
    通过萃取蒸馏从正戊烷中分离出二氯甲烷

    公开(公告)号:US5304700A

    公开(公告)日:1994-04-19

    申请号:US94698

    申请日:1993-07-22

    申请人: Lloyd Berg Zuyin Yang

    发明人: Lloyd Berg Zuyin Yang

    CPC分类号: C07C17/38 C07C7/10

    摘要: Methylene chloride cannot be completely separated from n-pentane by conventional distillation or rectification because of the minimum boiling azeotrope. Methylene chloride can be readily separated from n-pentane by extractive distillation. Typical effective agents are 2-pentanone, isopropyl acetate or methanol.

    摘要翻译: 由于最低沸点的共沸物,二氯甲烷不能通过常规的蒸馏或精馏而与正戊烷完全分离。 通过萃取蒸馏可以容易地将二氯甲烷与正戊烷分离。 典型的有效剂是2-戊酮,乙酸异丙酯或甲醇。

    Separation of 1,1,1-trichloroethane from the lower alcohols by
extractive distillation
    8.
    发明授权
    Separation of 1,1,1-trichloroethane from the lower alcohols by extractive distillation 失效
    通过萃取蒸馏从低级醇中分离1,1,1-三氯乙烷

    公开(公告)号:US5196094A

    公开(公告)日:1993-03-23

    申请号:US789286

    申请日:1991-11-08

    申请人: Lloyd Berg Zuyin Yang

    发明人: Lloyd Berg Zuyin Yang

    IPC分类号: C07C17/38

    CPC分类号: C07C17/38

    摘要: 1,1,1-Trichloroethane cannot be completely separated from methanol, ethanol, n-propanol, isopropanol, 2-butanol or t-butanol by conventional distillation or rectification because of the minimum boiling azeotropes. 1,1,1-Trichloroethane can be readily separated from these alcohols by extractive distillation. A typical effective agent is dimethylsulfoxide.

    摘要翻译: 由于最低沸点的共沸物,常规蒸馏或精馏,1,1,1-三氯乙烷不能与甲醇,乙醇,正丙醇,异丙醇,2-丁醇或叔丁醇完全分离。 1,1,1-三氯乙烷可以通过萃取蒸馏容易地从这些醇中分离出来。 典型的有效剂是二甲基亚砜。

    Separation of methylene chloride from the lower alcohols by extractive
distillation
    9.
    发明授权
    Separation of methylene chloride from the lower alcohols by extractive distillation 失效
    通过萃取蒸馏从低级醇中分离出二氯甲烷

    公开(公告)号:US5152876A

    公开(公告)日:1992-10-06

    申请号:US675817

    申请日:1991-03-27

    申请人: Lloyd Berg Zuyin Yang

    发明人: Lloyd Berg Zuyin Yang

    IPC分类号: C07C17/38 C07C29/84

    CPC分类号: C07C17/38 C07C29/84

    摘要: Methylene chloride cannot be completely separated from methanol or ethanol by conventional distillation or rectification because of the mimimum boiling azeotrope. Methyelne chloride can be readily separated from methanol or ethanol by azeotropic or extractive distillation. Typical effective agents are: for methanol by azeotropic distillation, isopropanol or t-butanol; by extractive distillation, 1-nitropropane or n-butanol; for ethanol by extractive distillation, isobutanol or n-propyl acetate.

    摘要翻译: 由于最初沸腾的共沸物,二氯甲烷不能通过常规的蒸馏或精馏与甲醇或乙醇完全分离。 通过共沸或萃取蒸馏可以容易地将甲基氯化物与甲醇或乙醇分离。 典型的有效试剂是:通过共沸蒸馏甲醇,异丙醇或叔丁醇; 通过萃取蒸馏,1-硝基丙烷或正丁醇; 通过萃取蒸馏进行乙醇,异丁醇或乙酸正丙酯。

    Separation of methylene chloride from the lower formates by extractive
distillation
    10.
    发明授权
    Separation of methylene chloride from the lower formates by extractive distillation 失效
    通过萃取蒸馏从低级甲酸盐分离二氯甲烷

    公开(公告)号:US5094724A

    公开(公告)日:1992-03-10

    申请号:US687507

    申请日:1991-04-19

    申请人: Lloyd Berg Zuyin Yang

    发明人: Lloyd Berg Zuyin Yang

    IPC分类号: C07C17/38 C07C67/54

    CPC分类号: C07C17/38 C07C67/54

    摘要: Methylene chloride cannot be completely separated from methyl formate or ethyl formate by conventional distillation or rectification because of the minimum boiling azeotrope. Methylene chloride can be readily separated from methyl formate or ethyl formate by extractive distillation. Typical effective agents are: for methyl formate, n-butyl acetate and 3-hexanone; for ethyl formate, isobornyl acetate and 2-heptanone.

    摘要翻译: 由于最低沸点的共沸物,二氯甲烷不能通过常规蒸馏或精馏从甲酸甲酯或甲酸甲酯中完全分离出来。 二氯甲烷可以通过萃取蒸馏从甲酸甲酯或甲酸乙酯容易地分离出来。 典型的有效试剂是:甲酸甲酯,乙酸正丁酯和3-己酮; 甲酸乙酯,乙酸异冰片酯和2-庚酮。