公开(公告)号：US4728704A

公开(公告)日：1988-03-01

申请号：US14556

申请日：1987-02-13

申请人： John C. Chadwick ,  Jacob C. van der Sar

发明人： John C. Chadwick ,  Jacob C. van der Sar

IPC分类号： C07C29/70 ,  C07C27/00 ,  C07C31/30 ,  C07C67/00 ,  C08F4/02 ,  C08F4/60 ,  C08F4/64 ,  C08F4/654 ,  C08F10/00 ,  C08F10/06

CPC分类号： C08F10/00

摘要： A process for preparing spherical particles of a compound with the general formula Mg(OR).sub.2-a (OR').sub.a is disclosed. In the process R is an alkyl group with from 2 to 8 carbon atoms, R' is an alkyl group with from 1 to 7 carbon atoms and a is a number of from 0 to 0.5. The process comprises preparing a homogeneous solution of a compound Mg(OR).sub.2 in an aliphatic alcohol with the general formula R'OH, spray-drying the solution at a temperature of from 15.degree. to 85.degree. C., suspending the spray-dried solid particles in an aliphatic alcohol with the formula ROH in which R is the same alkyl group as present in the said compound Mg(OR).sub.2, heating the suspension in order to remove an alcohol with the formula R'OH from the liquid phase by distillation and separating the solid particles from the liquid phase.

公开(公告)号：US4343721A

公开(公告)日：1982-08-10

申请号：US207848

申请日：1980-11-18

申请人： Brian L. Goodall ,  Jacob C. van der Sar

发明人： Brian L. Goodall ,  Jacob C. van der Sar

IPC分类号： C08F4/00 ,  C08F4/60 ,  C08F4/64 ,  C08F4/652 ,  C08F10/00

CPC分类号： C08F10/00 ,  Y10S526/906

摘要： A process for the preparation of an olefin polymerization catalyst component which comprises contacting a solid composition obtained by combining a magnesium halide, an electron donor and a tetravalent titanium compound, this composition being substantially free from aluminum compounds, with a liquid medium comprising a halide of B, Al, Ga, In, Tl, Sn or Sb, these elements being present in their highest valency state or a halide of tetravalent Te, and removing from the catalyst component substantially all metal halide originating from the liquid medium as by washing the catalyst component with a hydrocarbon or halohydrocarbon liquid.

摘要翻译： 一种制备烯烃聚合催化剂组分的方法，该方法包括将通过将卤化镁，电子给体和四价钛化合物组合而获得的固体组合物与该液体介质相接触，该组合物基本上不含铝化合物， B，Al，Ga，In，Tl，Sn或Sb，这些元素以其最高价态存在或四价Te的卤化物，并且通过洗涤催化剂从催化剂组分基本上除去源自液体介质的所有金属卤化物 组分与烃或卤代烃液体。

公开(公告)号：US4943670A

公开(公告)日：1990-07-24

申请号：US441124

申请日：1989-11-22

申请人： Brian L. Goodall ,  Willem Terlouw ,  Jacob C. van der Sar

发明人： Brian L. Goodall ,  Willem Terlouw ,  Jacob C. van der Sar

IPC分类号： C07C2/86

CPC分类号： C07C2/86 ,  C07C2531/04 ,  C07C2531/24

摘要： A process for the preparation of a compound of general formula ##STR1## in which R.sup.1 represents a hydrogen atom or a methyl group, one of R.sup.2 and R.sup.3 represents a hydrogen atom and the other of R.sup.2 and R.sup.3 is the same as R.sup.1, which comprises reacting a compound of the general formulaR.sup.1 CH.dbd.C.dbd.CH.sub.2 (II)with a salt of formic acid in the presence of a catalyst system comprising a palladium salt and a phosphorus compound of general formulaP(OX).sub.n (X).sub.3-n (III)in which n is 0,1,2 or 3 and each X independently represents an alkyl, alkenyl, aryl, aralkyl, alkaryl or cycloalkyl group, and recovering the desired compound of formula (I).

摘要翻译： 制备通式为（I）的化合物的方法，其中R 1表示氢原子或甲基，R 2和R 3之一表示氢原子，R 2和R 3中的另一个与R 1相同 其包括在包含钯盐和通式P（OX）n（X））的磷化合物的催化剂体系的存在下使通式为R 1 CH = C = CH 2（II）的化合物与甲酸盐反应， 3-n（III），其中n为0,1,2或3，并且每个X独立地表示烷基，烯基，芳基，芳烷基，烷芳基或环烷基，并回收所需的式（I）化合物。