Process for mixed extreme pressure additives
    1.
    发明授权
    Process for mixed extreme pressure additives 失效
    混合极压添加剂的工艺

    公开(公告)号:US5242613A

    公开(公告)日:1993-09-07

    申请号:US791271

    申请日:1991-11-13

    IPC分类号: C10M141/10 C10M159/12

    摘要: This invention relates to additives for oleaginous fluids containing extreme pressure and antiwear agents and containing less than 15 GC area percent higher dialkyl polysulfides and to a process for their production comprising:a) forming a first reaction mass comprising olefin, a sulfur source, and a catalyst;b) heating the first reaction mass to a temperature and for a period of time which is sufficient to form a mixture of dialkyl disulfides, dialkyl trisulfides and higher dialkyl polysulfides;c) forming a second reaction mass comprising the mixture of dialkyl disulfides, dialkyl trisulfides and higher dialkyl polysulfides formed in step (b), an organo phosphorus compound, and optionally an amine;d) heating the second reaction mass to a temperature and for a period of time which are sufficient to convert at least a portion of the higher dialkyl polysulfides to dialkyl trisulfide; ande) recovering said mixed additive containing extreme pressure agents and antiwear agents, wherein said recovered mixed additive contains less than 15 GC area percent higher dialkyl polysulfides.

    摘要翻译: 本发明涉及含有极压和抗磨剂并且含有少于15GC面积百分比的较高级二烷基多硫化物的含油流体的添加剂及其制备方法,包括:a)形成包含烯烃,硫源和 催化剂; b)将第一反应物料加热至足以形成二烷基二硫化物,二烷基三硫化物和高级二烷基多硫化物的混合物的温度和一段时间; c)形成第二反应物料,其包含步骤(b)中形成的二烷基二硫化物,二烷基三硫化物和高级二烷基多硫化物的混合物,有机磷化合物和任选的胺; d)将第二反应物质加热至足以将至少一部分较高级二烷基多硫化物转化为二烷基三硫化物的温度和一段时间; 和e)回收含有极压剂和抗磨剂的所述混合添加剂,其中所述回收的混合添加剂含有少于15GC面积百分比的较高级二烷基多硫化物。

    Seal swell agent and process therefor
    2.
    发明授权
    Seal swell agent and process therefor 有权
    密封膨胀剂及其加工

    公开(公告)号:US07485734B2

    公开(公告)日:2009-02-03

    申请号:US11046073

    申请日:2005-01-28

    IPC分类号: C07D333/48

    摘要: A method of making 3-alkoxytetraalkylene sulfone. The method includes mixing an alcohol and a catalyst to form a first mixture. Alkadiene sulfone is reacted with the first mixture to form a reaction product. The reaction product is contacted with water at conditions sufficient to provide an organic phase and an inorganic phase. Subsequent to contacting the reaction product with water, the organic phase and inorganic phase are separated from one another.

    摘要翻译: 制备3-烷氧基四亚烷基砜的方法。 该方法包括混合醇和催化剂以形成第一混合物。 使二烷基二甲苯与第一混合物反应形成反应产物。 反应产物在足以提供有机相和无机相的条件下与水接触。 在使反应产物与水接触后,有机相和无机相彼此分离。

    Production of dihydrocarbyl polysulfides
    7.
    发明授权
    Production of dihydrocarbyl polysulfides 失效
    二氯代聚碳酸酯的生产

    公开(公告)号:US5146000A

    公开(公告)日:1992-09-08

    申请号:US674148

    申请日:1991-03-25

    申请人: Nubar Ozbalik

    发明人: Nubar Ozbalik

    CPC分类号: C07C319/24

    摘要: Hydrocarbyl mercaptan is reacted with sulfur in the presence of added alumina catalyst. With tertiary alkyl mercaptans high yields of di-tert-alkyl trisulfides are formed with excellent selectivity. With primary alkyl mercaptans the process can be controlled to form products enriched in either dialkyl disulfides or dialkyl trisulfides, and in either case little or no tetrasulfides are formed. The process is environmentally friendly in that halogen-containing reactants such as sulfur chlorides are not used and thus the products are not contaminated with significant amounts of halogen residues.