Mercaptans by catalytic cleavage of organic sulfides
    23.
    发明授权
    Mercaptans by catalytic cleavage of organic sulfides 失效
    硫醇通过催化裂解有机硫化物

    公开(公告)号:US4059636A

    公开(公告)日:1977-11-22

    申请号:US682934

    申请日:1976-05-04

    申请人: Donald H. Kubicek

    发明人: Donald H. Kubicek

    IPC分类号: C07C148/00

    CPC分类号: C07C319/06

    摘要: A method is provided for preparing mercaptans by catalytic cleavage of organic sulfides with hydrogen sulfide in the presence of a supported phosphotungstic acid catalyst. The process is particularly advantageous with n-alkyl sulfide feedstock and being highly selective for producing n-alkyl mercaptan product. In one embodiment the presence of carbon disulfide in the reaction mixture increases the conversion at low temperature as compared to the process without the presence of carbon disulfide.

    摘要翻译: 提供了一种通过在负载型磷钨酸催化剂存在下用硫化氢催化裂解有机硫化物来制备硫醇的方法。 该方法对于正烷基硫化物原料是特别有利的,并且对于制备正烷基硫醇产物是高选择性的。 在一个实施方案中,与不存在二硫化碳的方法相比,反应混合物中二硫化碳的存在增加了在低温下的转化率。

    Mercaptans by addition of hydrogen sulfide to olefins in presence of
carbon disulfide
    26.
    发明授权
    Mercaptans by addition of hydrogen sulfide to olefins in presence of carbon disulfide 失效
    通过在二硫化碳存在下将硫化氢加入到烯烃中的硫醇

    公开(公告)号:US3963785A

    公开(公告)日:1976-06-15

    申请号:US573505

    申请日:1975-05-01

    申请人: Donald H. Kubicek

    发明人: Donald H. Kubicek

    CPC分类号: C07C319/04 C07C2101/14

    摘要: In a method for preparing mercaptans by the addition of hydrogen sulfide to olefins in the presence of sulfactive catalysts a method is provided for increasing the total conversion of reactants to mercaptans by including carbon disulfide in the reaction mixture. In a preferred embodiment carbon disulfide is present in the reaction mixture of hydrogen sulfide and ethylenically unsaturated compounds in an amount in the molar ratio of about 5/1 to about 30/1 hydrogen sulfide to carbon disulfide.

    摘要翻译: 在通过在有机催化剂存在下通过加入硫化氢制备硫醇的方法中,提供了通过在反应混合物中包含二硫化碳来增加反应物对硫醇的总转化率的方法。 在优选的实施方案中,二硫化碳在硫化氢和烯键式不饱和化合物的反应混合物中的存在量为约5/1至约30/1硫化氢与二硫化碳的摩尔比。