公开(公告)号：KR810000373B1

公开(公告)日：1981-04-24

申请号：KR770001458

申请日：1977-06-24

Applicant: SHELL INT RESEARCH

Inventor： VAN DER NAT A ,  KORTBEEK A ,  VAN DER LINDEN LEMMERS W

IPC: C01G23/02

Abstract: Violet TiCl3 suitable for stereospecific polymn. of propylene is prepd. directly by mixing a soln. of 1:0.3-2 TiCl4-ether complex and a soln. of 1:0.25 Alalkyl-ether complex and heating the mixt. for

公开(公告)号：BR7904693A

公开(公告)日：1980-05-27

申请号：BR7904693

申请日：1979-07-23

Applicant: SHELL INT RESEARCH

Inventor： VAN DER LINDEN-LEMMERS W ,  KORTBEEK A

IPC: C08F4/00 ,  C08F4/60 ,  C08F4/64 ,  C08F10/00

Abstract: A TiCl3 olefin polymerization catalyst component is prepared by reducing TiCl4 with an aluminum trihydrocarbyl compound in a molar ratio of Ti:Al of 2.7:1 to 4.0:1 in the presence of diisoamyl ether and a hydrocarbon solvent by gradually adding TiCl4 to the aluminum trihydrocarbyl compound and at least a substantial proportion of the diisoamyl ether at a temperature of from 15 DEG to 50 DEG C. during a period of from 0.7 to 2.5 hours to produce a precipitate of TiCl3, and thereafter converting the precipitate into active TiCl3 by heating at a temperature of from 80 DEG to 110 DEG C. during at least 30 minutes. The active TiCl3, when combined with a conventional organoaluminum cocatalyst, provides a stereospecific catalyst for the polymerization of alpha monoolefins having high activity, good morphology and good stereospecificity.

公开(公告)号：ZA7704143B

公开(公告)日：1978-05-30

申请号：ZA7704143

申请日：1977-07-11

Applicant: SHELL INT RESEARCH

Inventor： NAT A ,  SJARDIJN W ,  KORTBEEK A ,  LINDEN LEMMERS W

IPC: C08F4/00 ,  C01G23/02 ,  C08F4/60 ,  C08F4/64 ,  C08F10/00 ,  C22B ,  C01B

CPC classification number: C08F10/00 ,  C08F4/6576 ,  C08F4/655

公开(公告)号：BR7704536A

公开(公告)日：1978-06-06

申请号：BR7704536

申请日：1977-07-11

Applicant: SHELL INT RESEARCH

Inventor： NAT A VAN DER ,  SJARDIJN W ,  KORTBEEK A ,  LINDEN LEMMERS W VAN DER

IPC: C08F4/00 ,  C01G23/02 ,  C08F4/60 ,  C08F4/64 ,  C08F10/00

Abstract: A process for the preparation of violet TiCl3 by reducing TiCl4 with an organo-aluminum compound, characterized in that: (a) the TiCl4 is premixed with a complexing agent in an inert organic solvent, the molar ratio complexing agent:TiCl4 being within the range from 0.3:1 to 2:1; (b) the organo-aluminum compound is premixed with a complexing agent in an inert organic solvent, the molar ratio complexing agent:organo-aluminum compound being at least 0.25:1; (c) the reduction to TiCl3 and precipitation of TiCl3 are carried out by combining at least one stoichiometric equivalent of TiCl4 in the premixed composition of step (a) with one stoichiometric equivalent of the organoaluminum compound in the premixed composition of step (b) over a period of less than one hour at a temperature within the range 60 DEG to 110 DEG C.; and (d) the final concentration of violet TiCl3 in the reaction mixture is at least 0.2 mol./liter.

公开(公告)号：ZA774143B

公开(公告)日：1978-05-30

申请号：ZA774143

申请日：1977-07-11

Applicant: SHELL INT RESEARCH

Inventor： NAT A ,  SJARDIJN W ,  KORTBEEK A ,  LINDEN LEMMERS W

IPC: C01G23/02 ,  C08F4/60 ,  C08F4/00 ,  C08F4/64 ,  C08F10/00 ,  C22B ,  C01B

Abstract: A process for the preparation of violet TiCl3 by reducing TiCl4 with an organo-aluminum compound, characterized in that: (a) the TiCl4 is premixed with a complexing agent in an inert organic solvent, the molar ratio complexing agent:TiCl4 being within the range from 0.3:1 to 2:1; (b) the organo-aluminum compound is premixed with a complexing agent in an inert organic solvent, the molar ratio complexing agent:organo-aluminum compound being at least 0.25:1; (c) the reduction to TiCl3 and precipitation of TiCl3 are carried out by combining at least one stoichiometric equivalent of TiCl4 in the premixed composition of step (a) with one stoichiometric equivalent of the organoaluminum compound in the premixed composition of step (b) over a period of less than one hour at a temperature within the range 60 DEG to 110 DEG C.; and (d) the final concentration of violet TiCl3 in the reaction mixture is at least 0.2 mol./liter.