Thin film type sulfonation process of alkylbenzene
    1.
    发明授权
    Thin film type sulfonation process of alkylbenzene 失效
    烷基苯薄膜型磺化工艺

    公开(公告)号:US4390475A

    公开(公告)日:1983-06-28

    申请号:US306504

    申请日:1981-09-28

    CPC分类号: C07C303/06

    摘要: Alkylbenzene is sulfonated in a thin film type sulfonation process by adding 2 through 20 parts by weight, based on 100 parts by weight of said alkylbenzene, of alkylbenzene sulfonic acids having alkyl groups of 1 through 20 carbon atoms and/or benzene sulfonic acids to the alkylbenzene prior to the contact thereof with diluted gaseous sulfur trioxide. The addition of alkylbenzene sulfonic acids and/or benzenesulfonic acid effectively prevents the formation of adherent deposits on the surface of a reaction wall.

    摘要翻译: 基于100重量份的所述烷基苯,具有1至20个碳原子的烷基和/或苯磺酸的烷基苯磺酸将2至20重量份加入到薄膜型磺化方法中,将烷基苯磺化至 烷基苯在与稀释的气态三氧化硫接触之前。 加入烷基苯磺酸和/或苯磺酸有效地防止在反应壁表面上形成附着沉积物。

    Olefin sulfonation method
    2.
    发明授权
    Olefin sulfonation method 失效
    烯烃磺化法

    公开(公告)号:US4925976A

    公开(公告)日:1990-05-15

    申请号:US843838

    申请日:1986-03-26

    CPC分类号: C07C309/00

    摘要: A method for sulfonating olefins comprising the steps of mixing (A) internal olefins having 8 to 22 carbon atoms with (B) alpha-olefins having an average carbon atom number, larger by 3 to 7 than that of the internal olefins (A) in a weight ratio of (A)/(B)=95/5 to 5/95, and sulfonating the resultant mixture with a sulfonating agent. Thus, internal olefins can be sulfonated at a high conversion.

    摘要翻译: 一种磺化烯烃的方法,包括以下步骤:将(A)具有8-22个碳原子的内烯烃与(B)具有平均碳原子数的α-烯烃混合,比内烯烃(A)的 (A)/(B)= 95/5〜5/95的重量比,并用磺化剂磺化所得混合物。 因此,内部烯烃可以以高转化率磺化。

    Sulfonation method of polystyrene
    3.
    发明授权
    Sulfonation method of polystyrene 失效
    聚苯乙烯磺化法

    公开(公告)号:US4671903A

    公开(公告)日:1987-06-09

    申请号:US914978

    申请日:1986-10-03

    IPC分类号: C08F8/36 C07C143/24

    CPC分类号: C08F8/36

    摘要: A method for sulfonating polystyrene having an average molecular weight of 200 to 50,000 in a halogenated hydrocarbon solvent comprising the step of reacting the polystyrene with a sulfonating agent under a condition of a shearing force of 0.08 to 1.5 N/cm.sup.2 by using an agitator satisfying the following requirements (I) and (II):0.1

    摘要翻译: 一种在卤代烃溶剂中磺化平均分子量为200〜50,000的聚苯乙烯的方法,包括使用满足下述条件的搅拌器,在剪切力为0.08〜1.5N / cm 2的条件下使聚苯乙烯与磺化剂反应的工序 以下要求(I)和(II):0.1