中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

8 records (took 0.016 seconds)

    PROCESS FOR THE PREPARATION OF A COMPONENT CONTAINING TITANIUM FOR CATALYSTS OF THE ZIEGLER-NATTA TYPE
    6.
    发明专利
    PROCESS FOR THE PREPARATION OF A COMPONENT CONTAINING TITANIUM FOR CATALYSTS OF THE ZIEGLER-NATTA TYPE 未知

    公开(公告)号：DE2860329D1

    公开(公告)日：1981-03-12

    申请号：DE2860329

    申请日：1978-08-23

    Applicant: BASF AG

    Inventor： MUELLER-TAMM HEINZ DR ,  JAGGARD JAMES F R DR ,  SCHICK HANS DR

    IPC: C08F4/00 ,  C07F7/00 ,  C08F4/60 ,  C08F4/64 ,  C08F10/00

    Abstract: A process for the manufacture of a titanium-containing component of a catalyst for the Ziegler-Natta polymerization of alpha -monoolefins, by (a) milling a titanium-containing compound of the general formula TiCl3.nAlCl3 (where n is a number from 0.01 to 1) with (b) an ether of a particular type or an ester of a particular type, wherein (1) a vibratory ball mill giving a relatively high milling acceleration is used, (2) the mill is first charged with the titanium-containing compound (a), after which it may or may not be run for a certain period, thereafter (3) while milling, the amount of the ether or ester (b) which corresponds to a particular molar ratio of aluminum in the titanium-containing compound (a) to ether or ester (b) is added continuously or in small portions, then (4) the batch is milled for a certain period, after which (5) the product obtained from stage (4) may or may not be washed with a hydrocarbon and dried, and following which (6) the product obtained from stage (4) or (5) may or may not be milled for a certain period at a low temperature, next (7) the product obtained from stage (4), (5) or (6) is brought together with a liquid silicon compound of a particular type or a liquid tin compound of a particular type (these compounds acting as promoters) and the batch is left for a certain period and is then separated into a solid-phase product and into a liquid-phase product, and thereafter (8) the solid-phase product obtained from stage (7) is washed with a hydrocarbon or with one of the promoters mentioned under (7) and is dried, following which (9) the product obtained from stage (8) may or may not be milled for a certain period at a low temperature. Using the titanium-containing catalyst components thus obtainable makes it possible to produce polymers, having a high stereoregularity, in high specific yields.

Patent Agency Ranking