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    Process for producing sulfonic acids or salts thereof
    3.
    发明公开
    Process for producing sulfonic acids or salts thereof 有权
    Verfahren zur Herstellung vonSulfonsäurenoder deren Salzen

    公开(公告)号：EP1036788A1

    公开(公告)日：2000-09-20

    申请号：EP00104958.4

    申请日：2000-03-08

    申请人： Daicel Chemical Industries, Ltd.

    发明人： Ishi, Yasutaka ,  Nakano, Tatsuya

    IPC分类号： C07C303/14 ,  C07C303/06 ,  C07C309/25

    CPC分类号： C07C303/14 ,  C07C2603/74 ,  C07C309/25

    摘要： In the presence of an imide compound of the following formula (1), a sulfur oxide is reacted with an organic substrate to yield a corresponding sulfur acid or its salt. This process can efficiently produce an organic sulfur acid or its salt under relatively mild conditions.
    wherein each of R 1 and R 2 is, identical to or different from each other, a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a cycloalkyl group, a hydroxyl group, an alkoxy group, a carboxyl group, an alkoxycarbonyl group, or an acyl group, where R 1 and R 2 may be combined to form a double bond or an aromatic or non-aromatic ring; X is an oxygen atom or a hydroxyl group, where one or two N-substituted cyclic imido groups indicated in the formula (1) may be further bonded to the aforementioned R 1 , R 2 or to the double bond or aromatic or non-aromatic ring formed together by R 1 and R 2 .

    摘要翻译： 在下式（1）的酰亚胺化合物存在下，使硫氧化物与有机底物反应，得到相应的硫酸或其盐。 该方法可以在相对温和的条件下有效地产生有机硫酸或其盐。 其中R 1和R 2各自相同或不同，为氢原子，卤原子，烷基，芳基，环烷基，羟基， 烷氧基，羧基，烷氧基羰基或酰基，其中R 1和R 2可以结合形成双键或芳族或非芳族环; X是氧原子或羟基，其中式（1）中所示的一个或两个N-取代的环状亚氨基可以进一步键合到上述R 1，R 2或双键或芳族 或由R 1和R 2一起形成的非芳族环。

    VERFAHREN ZUR ISOLIERUNG KONZENTRIERTER PARAFFINSULFONSÄUREN
    5.
    发明公开
    VERFAHREN ZUR ISOLIERUNG KONZENTRIERTER PARAFFINSULFONSÄUREN 有权
    VERFAHREN ZUR ISOLIERUNG KONZENTRIERTERPARAFFINSULFONSÄUREN

    公开(公告)号：EP2146956A2

    公开(公告)日：2010-01-27

    申请号：EP08758352.2

    申请日：2008-04-29

    申请人： Clariant Finance (BVI) Limited

    发明人： REINHARDT, Gerd ,  NAUMANN, Peter ,  CUYPERS, Lars

    IPC分类号： C07C303/44

    CPC分类号： C07C303/44 ,  C07C303/14 ,  C07C309/04

    摘要： The invention relates to a method for isolating concentrated paraffin sulfonic acids from reaction mixtures that are produced during the sulfoxidation of n-paraffins, from which a major part of the sulfuric acid and the paraffin was removed by phase separation and which contain, in addition to the free paraffin sulfonic acids, n-paraffins, water and optionally minor amounts of sulfuric acids. The method according to the invention is characterized by removing paraffin and optionally residual water by vacuum distillation. The paraffin sulfonic acids obtained by distillation have a content of more than 85% by weight of the active substance. The material is pale, odorless and low in sulfuric acid and paraffin.

    摘要翻译： 本发明涉及从在正构烷烃的磺化氧化过程中产生的反应混合物中分离浓缩的石蜡磺酸的方法，通过相分离除去主要部分的硫酸和石蜡，并且除了 游离石蜡磺酸，正链烷烃，水和任选的少量硫酸。 根据本发明的方法的特征在于通过真空蒸馏除去石蜡和任选的残留水。 通过蒸馏得到的石蜡磺酸的含量大于活性物质的85重量％。 该材料苍白无嗅，在硫酸和石蜡中含量低。