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    Process for the manufacture of dichloropropanol
    1.
    发明授权
    Process for the manufacture of dichloropropanol 失效
    制备二氯丙醇的方法

    公开(公告)号：US08471074B2

    公开(公告)日：2013-06-25

    申请号：US12529778

    申请日：2008-03-13

    Applicant: Philippe Krafft ,  Patrick Gilbeau ,  Dominique Balthasart ,  Maurizio Paganin

    Inventor： Philippe Krafft ,  Patrick Gilbeau ,  Dominique Balthasart ,  Maurizio Paganin

    IPC: C07C31/36

    CPC classification number: C07C29/62 ,  C07C29/82 ,  C07C29/86 ,  C07C31/36

    Abstract: Process for manufacturing dichloropropanol according to which, a) in a liquid reaction medium containing water, which is in contact with a gaseous phase, glycerol is reacted with hydrogen chloride under a partial pressure of hydrogen chloride in the gaseous phase greater than 0.2 bar absolute, and b) at least part of the liquid reaction medium and optionally part of the gaseous phase from step a) is (are) subjected to at least one separation operation and, prior to said separation operation, the part of the liquid reaction medium and the part of the gaseous phase from step a) is (are) subjected to bi) at least one treatment for reducing the weight ratio between the hydrogen chloride and the water in the part of the liquid reaction medium so as to attain a ratio less than or equal to the weight ratio between the hydrogen chloride and the water in the binary azeotropic hydrogen chloride/water composition at total pressure of the separation operation, and/or bii) at least one treatment for reducing the weight ratio between the water and the dichloropropanol in the part of the liquid reaction medium so as to attain a ratio less than or equal to the weight ratio between the water and the dichloropropanol in the ternary water/dichloropropanol/hydrogen chloride azeotrope at total pressure of the separation operation.

    Abstract translation: 制备二氯丙醇的方法，其中a）在含有与气相接触的水的液体反应介质中，丙三醇在大于0.2巴绝对压力的气相中在氯化氢的分压下与氯化氢反应， 和b）至少部分液体反应介质和任选地来自步骤a）的气相的一部分进行至少一个分离操作，并且在所述分离操作之前，将部分液体反应介质和 来自步骤a）的气相的一部分被进行至少一种处理以减少液体反应介质的部分中的氯化氢和水之间的重量比，以获得小于或等于 等于在分离操作的总压力下的二元共沸氯化氢/水组合物中的氯化氢和水之间的重量比，和/或bii）至少一种处理 r减少液体反应介质部分的水和二氯丙醇之间的重量比，以获得小于或等于三元水/二氯丙醇/氯化氢共沸物中水和二氯丙醇之间的重量比的比例 分离操作的总压力。

    Process for preparing 4,4,4-trichlorobutan-1-ol
    5.
    发明授权
    Process for preparing 4,4,4-trichlorobutan-1-ol 失效
    制备4,4,4-三氯丁烷-1-醇的方法

    公开(公告)号：US5874650A

    公开(公告)日：1999-02-23

    申请号：US889233

    申请日：1997-07-08

    Applicant: Martin Charles Bowden

    Inventor： Martin Charles Bowden

    IPC: C07C29/44 ,  C07C29/62 ,  C07C31/12 ,  C07C31/36 ,  C07C29/00

    CPC classification number: C07C29/62

    Abstract: A process for the preparation of 4,4,4-trichlorobutan-1-ol which comprises reacting allyl alcohol with chloroform in the presence of a radical initiator. Preferably the allyl alcohol is added incrementally to the chloroform over the period of the reaction.

    Abstract translation: 一种制备4,4,4-三氯丁-1-醇的方法，其包括在自由基引发剂存在下使烯丙醇与氯仿反应。 优选在反应期间将烯丙醇逐渐加入到氯仿中。

    Process for the production of dichlorohydrin
    7.
    发明授权
    Process for the production of dichlorohydrin 失效
    二氯丙醇生产工艺

    公开(公告)号：US4640754A

    公开(公告)日：1987-02-03

    申请号：US814346

    申请日：1985-12-27

    Applicant: F. Norman Grimsby

    Inventor： F. Norman Grimsby

    IPC: C07C29/76 ,  C07C31/34 ,  C07C31/36 ,  C25B3/06 ,  B01D13/02

    CPC classification number: B01D61/44 ,  C07C29/76 ,  C07C31/36

    Abstract: A continuous process for the production of dichlorohydrin by the reaction of allyl chloride, water and chlorine in a reaction zone comprising a first reaction stage, a final reaction stage and optionally at least one intermediate reaction stage, where the reaction mixture from at least one reaction stage is electrodialyzed in at least one electrodialysis zone to remove ions formed during the reaction, whereas at least a portion of the reaction product from said final reaction stage is passed to the concentrate inlet of said at least one electrodialysis zone, and withdrawing an ion-containing reaction product concentrate stream from said electrodialysis zone, whereby any dichlorohydrin which passes into the concentrate stream in said at least one electrodialysis zone may be recovered.

    Abstract translation: 通过在包含第一反应阶段，最终反应阶段和任选的至少一个中间反应阶段的反应区中烯丙基氯，水和氯的反应生产二氯丙醇的连续方法，其中将来自至少一种反应 在至少一个电渗析区中进行电渗析以除去在反应期间形成的离子，而来自所述最终反应阶段的反应产物的至少一部分被传递到所述至少一个电渗析区的浓缩物入口，并且抽出离子 - 含有来自所述电渗析区的反应产物浓缩物流，由此可以回收在所述至少一个电渗析区中进入浓缩物流中的任何二氯丙醇。

    Chemical process
    8.
    发明授权
    Chemical process 失效
    化学工艺

    公开(公告)号：US4521337A

    公开(公告)日：1985-06-04

    申请号：US475247

    申请日：1983-03-14

    Applicant: Robert Southgate ,  Pamela Brown

    Inventor： Robert Southgate ,  Pamela Brown

    IPC: C07D507/04 ,  A61K31/535 ,  A61P31/04 ,  C07C29/62 ,  C07C31/36 ,  C07D265/06 ,  C07D265/14 ,  C07D265/16 ,  C07D498/04 ,  C07D507/06 ,  C07D507/08

    CPC classification number: C07D265/14 ,  C07C247/00 ,  C07C29/62 ,  C07C31/36 ,  C07D265/06

    Abstract: A process for the preparation of a compound of the formulae (Ia) and/or (Ib): ##STR1## wherein R.sup.1 and R.sup.2 are independently substituted or unsubstituted hydrocarbon groups or are joined together so as to form a carbocyclic or heterocyclic ring, and R.sup.3 is a substituted or unsubstituted hydrocarbon group; which process comprises the ring-closing cyclization of a compound of the formula (II): ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 are as defined in relation to formulae (Ia) and (Ib).

    Abstract translation: 制备式（Ia）和/或（Ib）化合物的方法：其中R 1和R 2独立地是取代或未取代的烃基或连接在一起以形成碳环或杂环，以及 R3是取代或未取代的烃基; 该方法包括式（II）化合物的闭环环化：其中R 1，R 2和R 3如关于式（Ia）和（Ib）所定义）。

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