Process for the conversion of t-alkylphenol waste destillation bottoms to para-t-alkylphenol
    2.
    发明公开
    Process for the conversion of t-alkylphenol waste destillation bottoms to para-t-alkylphenol 失效
    Verfahren zur Umwandlung vonDestillationsrückständender t-Alkylphenolsynthese zu para-t-Alkylphenol。

    公开(公告)号:EP0284666A1

    公开(公告)日:1988-10-05

    申请号:EP87118855.3

    申请日:1987-12-18

    CPC classification number: C07C37/48 C07C39/06

    Abstract: A process is provided for converting waste distillation bottoms containing t -­alkylphenols with substantial unknown constituents to useable para- t -alkylphenols. The process comprises heating the waste distillation bottoms with phenol and an acid catalyst to effect transalkylation. The waste distillation bottoms typically result from the production of para- t -­alkylphenol and/or 2,4-di- t -alkylphenol.

    Abstract translation: 提供了一种方法,用于将含有大量未知组分的叔烷基酚的废蒸馏塔底转化成可用的对 - 叔烷基酚。 该方法包括用苯酚和酸催化剂加热废蒸馏塔底物以实现烷基转移。 废蒸馏塔底通常由对 - 叔烷基酚和/或2,4-二 - 叔烷基酚的生产产生。

    Preparation of alkyl alkanethiolsulfonates
    3.
    发明公开
    Preparation of alkyl alkanethiolsulfonates 失效
    烷基硫醇磺酸烷基酯的制备

    公开(公告)号:EP0445365A1

    公开(公告)日:1991-09-11

    申请号:EP90121621.8

    申请日:1990-11-12

    Inventor: Husain, Altaf

    CPC classification number: C07C381/04

    Abstract: Alkyl alkanethiolsulfonates are prepared by oxidation of the corresponding alkanethiol or dialkyl disulfide by aqueous hydrogen peroxide in the presence of a Group VIII transition metal catalyst.

    Abstract translation: 链烷硫醇磺酸盐是通过在第VIII族过渡金属催化剂存在下用过氧化氢水溶液氧化相应的链烷硫醇或二烷基二硫化物来制备的。

    Oxidation of thiols, disulfides and thiolsulfonates
    4.
    发明公开
    Oxidation of thiols, disulfides and thiolsulfonates 失效
    氟伐公司,二硫磺和硫代磺酸盐。

    公开(公告)号:EP0313939A2

    公开(公告)日:1989-05-03

    申请号:EP88117114.4

    申请日:1988-10-14

    CPC classification number: C07C309/00

    Abstract: Alkanesulfonic acids and alkanesulfonyl chlorides, free of undesirable side products arising from side-chain chlorination, are prepared by oxidation with hydrogen peroxide of the corresponding alkanethiol, dialkyldisulfide or alkyl alkanethiolsulfonate mixed with aqueous hydrochloric acid.

    Abstract translation: 通过用与盐酸水溶液混合的相应的链烷硫醇,二烷基二硫化物或烷基链烷硫醇烷磺酸的过氧化氢进行氧化,制备不含侧链氯化产生的不期望的副产物的烷烃磺酸和烷烃磺酰氯。

    Production of alkanesulfonic acids by oxidation of alkanethiols and dialkyl disulfides
    6.
    发明公开
    Production of alkanesulfonic acids by oxidation of alkanethiols and dialkyl disulfides 失效
    Herstellung vonAlkansulfonsäurendurch Oxidation von Alkanthiolen und Dikyldisulfiden。

    公开(公告)号:EP0424616A2

    公开(公告)日:1991-05-02

    申请号:EP90114257.0

    申请日:1990-07-25

    CPC classification number: C07C303/16

    Abstract: Alkanesulfonic acids are prepared by oxidation of the corresponding alkanethiol or dialkyl disulfide using an oxygen-containing gas as the oxidizing agent, in the presence of water and catalytic amounts of a lower dialkyl sulfoxide and a hydrogen halide.

    Abstract translation: 通过在水和催化量的低级二烷基亚砜和卤化氢的存在下,使用含氧气体作为氧化剂氧化相应的链烷硫醇或二烷基二硫化物来制备烷烃磺酸。

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