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    • 9. 发明授权
    • Saturated branched fatty acids containing 21 to 28 carbon atoms or
esters thereof with c1-36 alkanols, a process for their production and
their use
    • 含有21〜28个碳原子的饱和支链脂肪酸或其酯与c1-36链烷醇,其制备方法及其用途
    • US5401865A
    • 1995-03-28
    • US910351
    • 1992-07-23
    • Alfred LaufenbergArno Behr
    • Alfred LaufenbergArno Behr
    • C07C67/333C07C51/353C07C51/36C07C53/126C07C67/303C07C69/24C10M129/40C10M129/70C10M129/95C10N30/02C10N60/02
    • C10M129/40C10M129/70
    • Saturated, branched C.sub.21-28 fatty acids or esters thereof esterified with C.sub.1-36 alkanols produced by the process comprising: (a) reacting unsaturated fatty acids containing 18 to 22 carbon atoms and more than one olefinic bond or esters thereof esterified with C.sub.1-36 alkanols with propylene at a temperature of from about 50.degree. C. to about 140.degree. C. and at a pressure of from about 5 to about 40 bar in the presence of transition metal compounds selected from the group consisting of Ru, Rh, Pd, Ir, or Pt wherein the molar ratio of propylene to fatty acid or fatty acid ester is from about 1:1 to about 2:1 to form an olefinically unsaturated adduct and, (2) hydrogenating said adduct in the presence of a hydrogenation catalyst at a temperature of from about 70.degree. C. to about 120.degree. C. and under a hydrogen pressure of from 10 to about 30 bar; the process for producing the above acids or esters; and the process for depressing the pour point of a lubricant by adding to the lubricant a pour point depressing quantity thereof.
    • PCT No.PCT / EP91 / 00051 Sec。 371日期:1992年7月23日 102(e)日期1992年7月23日PCT 1991年1月15日PCT PCT。 出版物WO91 / 11425 日本1991年8月8日。C.通过包括以下方法制备的C 1-6链烷醇酯化的饱和的支链C 21-28脂肪酸或其酯:(a)使含有18-22个碳原子的不饱和脂肪酸和多于一个的烯键反应,或 其酯与C1-36链烷醇与丙烯在约50℃至约140℃的温度和约5至约40巴的压力下在存在过渡金属化合物的情况下酯化,所述过渡金属化合物选自 的Ru,Rh,Pd,Ir或Pt,其中丙烯与脂肪酸或脂肪酸酯的摩尔比为约1:1至约2:1以形成烯属不饱和加合物,和(2)将所述加合物氢化为 在约70℃至约120℃的温度和10至约30巴的氢气压力下存在氢化催化剂; 生产上述酸或酯的方法; 以及通过向润滑剂中添加倾点下降量来抑制润滑剂的倾点的方法。