申请人:ExxonMobil Chemical Patents Inc.
公开号:US08237003B2
公开(公告)日:2012-08-07
This invention relates to a catalyst compound for the metathesis of olefins represented by the formula:
wherein M is a Group 8 metal; X and X1 are anionic ligands; L is a neutral two electron donor; L1 is N, O, P, or S, preferably N or O; R is a C1 to C30 hydrocarbyl or a C1 to C30 substituted hydrocarbyl; G* is selected from the group consisting of hydrogen, a C1 to C30 hydrocarbyl, and a C1 to C30 substituted hydrocarbyl; R1 is selected from the group consisting of hydrogen, a C1 to C30 hydrocarbyl, and a C1 to C30 substituted hydrocarbyl; and G is independently selected from the group consisting of hydrogen, halogen, C1 to C30 hydrocarbyls and C1 to C30 substituted hydrocarbyls.
This invention also relates to process to make alphaolefins comprising contacting an olefin, such as ethylene, with a feed oil containing a triacylglyceride (typically a fatty acid ester (such as methyl oleate)) with the catalyst compound described above. The fatty acid ester may be a fatty acid methyl ester derived from biodiesel.
本发明涉及一种用于烯烃交换反应的催化剂化合物,其化学式表示为:其中M是8族金属,X和X1是阴离子配体,L是中性的双电子给体,L1是N、O、P或S,优选为N或O,R是C1至C30的烃基或C1至C30的取代烃基,G*选自氢、C1至C30的烃基和C1至C30的取代烃基,R1选自氢、C1至C30的烃基和C1至C30的取代烃基,G独立地选自氢、卤素、C1至C30的烃基和C1至C30的取代烃基。
本发明还涉及一种制备α-烯烃的方法,包括将烯烃(如乙烯)与含有三酰甘油的进料油接触,所述三酰甘油通常是脂肪酸酯(如油酸甲酯),使用上述催化剂化合物。脂肪酸甲酯可以是从生物柴油中得到的脂肪酸甲酯。