Process for isolating M-dichlorobenzene from mixtures of dichlorobenzene
isomers
    3.
    发明授权
    Process for isolating M-dichlorobenzene from mixtures of dichlorobenzene isomers 失效
    从二氯苯异构体的混合物中分离M-二氯苯的方法

    公开(公告)号:US5436377A

    公开(公告)日:1995-07-25

    申请号:US300614

    申请日:1994-09-02

    IPC分类号: C07C17/392 C07C25/08

    CPC分类号: C07C17/392

    摘要: In a particularly advantageous process for isolating m-dichlorobenzene from mixtures of dichlorobenzene isomers by crystallization as eutectic crystals using a processing aid, the processing aid used is a compound of the formula (I) ##STR1## in which R.sup.1 to R.sup.6 are, independently of one another, hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl, hydroxyl, NH.sub.2 or R--CO-- having R=C.sub.1 -C.sub.4 -alkyl,with 1-bromo-4-chlorobenzene and 1,4-dibromobenzene being excepted.

    摘要翻译: 在使用加工助剂通过结晶作为共晶晶体从二氯苯异构体的混合物中分离间二氯苯的特别有利的方法中,所用的加工助剂是式(I)化合物,其中R 1至R 6为 独立地是具有R = C 1 -C 4 - 烷基的氢,卤素,C 1 -C 4 - 烷基,羟基,NH 2或R-CO-,除了1-溴-4-氯苯和1,4-二溴苯外。

    Method for the hydrodehalogenation of halogenated meta-cresols
    4.
    发明授权
    Method for the hydrodehalogenation of halogenated meta-cresols 失效
    卤代间甲酚加氢脱卤的方法

    公开(公告)号:US07399890B2

    公开(公告)日:2008-07-15

    申请号:US10583019

    申请日:2004-12-07

    IPC分类号: C07C39/24 C07C37/00

    CPC分类号: C07C37/00 C07C39/07

    摘要: The present process serves for the hydrodehalogenation of halogenated meta-cresols of the formula (I) in which the R1 to R4 radicals are each as defined in the description, and is characterized in that halogenated meta-cresols of the formula (I) are contacted with a catalyst which has been prepared by applying one or more salts of palladium and/or platinum and optionally copper salts to an aluminum oxide or titanium oxide support material, together with hydrogen, at temperatures between 100 and 250° C.

    摘要翻译: 本发明方法用于式(I)的卤代间甲酚的加氢脱卤,其中R 1至R 4基团各自如说明书中所定义,并且 其特征在于将式(I)的卤代间甲酚与通过将一种或多种钯和/或铂盐和任选的铜盐一起施加到氧化铝或氧化钛载体材料上一起制备的催化剂接触 与氢气在100和250℃之间。

    Method for the hydrodehalogenation of halogenated meta-cresols
    5.
    发明申请
    Method for the hydrodehalogenation of halogenated meta-cresols 失效
    卤代间甲酚加氢脱卤的方法

    公开(公告)号:US20070149829A1

    公开(公告)日:2007-06-28

    申请号:US10583019

    申请日:2004-12-07

    IPC分类号: C07C39/24

    CPC分类号: C07C37/00 C07C39/07

    摘要: The present process serves for the hydrodehalogenation of halogenated meta-cresols of the formula (I) in which the R1 to R4 radicals are each as defined in the description, and is characterized in that halogenated meta-cresols of the formula (I) are contacted with a catalyst which has been prepared by applying one or more salts of palladium and/or platinum and optionally copper salts to an aluminum oxide or titanium oxide support material, together with hydrogen, at temperatures between 100 and 250° C.

    摘要翻译: 本发明方法用于式(I)的卤代间甲酚的加氢脱卤,其中R 1至R 4基团各自如说明书中所定义,并且 其特征在于将式(I)的卤代间甲酚与通过将一种或多种钯和/或铂盐和任选的铜盐一起施加到氧化铝或氧化钛载体材料上一起制备的催化剂接触 与氢气在100和250℃之间。