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    • 51. 发明授权
    • Process to produce polyalphaolefins
    • 生产聚α-烯烃的方法
    • US08513478B2
    • 2013-08-20
    • US11832287
    • 2007-08-01
    • Margaret M. WuMark P. HagemeisterNorman Yang
    • Margaret M. WuMark P. HagemeisterNorman Yang
    • C07C2/22
    • C08F10/00C08F110/14Y02P20/582C08F4/65912C08F4/65927C08F4/65908C08F2500/03C08F2500/17
    • Liquid poly-alpha-olefins having a KV100 of 2 to 6000 cSt, 20 weight percent dimer or less and a viscosity index of 60 or more are obtained by contacting in a reaction zone, in the presence of from 0 to 60 psi hydrogen, C3 to C20 alpha-olefin monomers with a non-coordinating anion activator, a single bridged meso-metallocene transition metal compound having less than about 35 wt % racemic isomer, and a co-activator. The molar ratio of activator to meso-metallocene is from 10:1 to 0.1:1, and the alpha-olefin monomers in the feed components are present in at least 20 wt % or more based upon the weight of the meso-metallocene, non-coordinating anion activator, co-activator, monomers, and solvent or diluent. The productivity of the process is at least 50,000 g of total product per gram of transition metal compound and no more than 5% monomer is converted from olefin to alkane.
    • 通过在0至60psi的氢气,C3的存在下在反应区中接触,获得KV100为2至6000cSt,20重量%的二聚物或更低的粘度指数为60或更大的液体聚α-烯烃, 具有非配位阴离子活化剂的C 20α-烯烃单体,具有小于约35重量%外消旋异构体的单桥连内消旋金属茂过渡金属化合物和共活化剂。 活化剂与内消旋金属茂的摩尔比为10:1至0.1:1,并且进料组分中的α-烯烃单体以基于内消旋金属茂的重量计至少为20重量%或更多, 配位阴离子活化剂,共活化剂,单体和溶剂或稀释剂。 该方法的生产率为每克过渡金属化合物至少50,000g总产物,并且不超过5%的单体由烯烃转化为烷烃。