公开(公告)号：US3941760A

公开(公告)日：1976-03-02

申请号：US478864

申请日：1974-06-13

申请人： Rudolf Herbeck ,  Erich Kolk ,  Guenther Schweier ,  Hans Schick ,  Friedrich Urban

发明人： Rudolf Herbeck ,  Erich Kolk ,  Guenther Schweier ,  Hans Schick ,  Friedrich Urban

IPC分类号： C08F4/00 ,  C08F4/60 ,  C08F10/00 ,  C08F4/02 ,  C08F10/02

CPC分类号： C08F10/00 ,  Y10S526/908 ,  Y10S526/909

摘要： Particulate polymers of ethylene are prepared by polymerization of ethylene or ethylene/.alpha. -monoalkene mixtures in a dry agitated bed (B) of the particulate polymer by means of a Ziegler/Natta catalyst system consisting of (1) a titanium-containing component and (2) an aluminum-containing component, the said components (1) and (2) being separately fed to the bed (B). Component (1) is a particulate reaction product (U) (of) (1.1) a substance of the formula TiCl.sub.3 . (AlCl.sub.3).sub.n where n is a number equal to from 0 to 0.34, and (1.2) a reaction product (R) of phosgene and a substnace (S) obtained from a substance of the formula Mg.sub.6 . Al.sub.2 . (OH).sub.16 . CO.sub.3 . (H.sub.2 O).sub.4 by calcination (heating), provided that (R) has a chlorine content of from 10 to 76% by weight and (U) has been obtained by milling (1.1) and (1.2) together.

摘要翻译： 通过由（1）含钛组分和（1）的齐格勒/纳塔催化剂体系在颗粒聚合物的干燥搅拌床（B）中聚合乙烯或乙烯/α-单烯烃混合物来制备乙烯的颗粒聚合物， 2）含铝组分，所述组分（1）和（2）分别进料到床（B）。 组分（1）是式TiCl 3的物质的颗粒反应产物（U）（的）（1.1）。 （AlCl 3）n，其中n是等于0至0.34的数，和（1.2）光气的反应产物（R）和由式Mg 6的物质获得的基团（S）。 Al2。 （OH）16。 CO3。 （H），通过煅烧（加热），（R）的氯含量为10〜76重量％，（U）通过研磨（1.1）和（1.2）得到。

公开(公告)号：US3654253A

公开(公告)日：1972-04-04

申请号：US3654253D

申请日：1969-10-31

申请人： KLAUS STEIGERWALD ,  OSKAR BUECHNER ,  WOLFGANG BALL ,  HELMUT PFANNMUELLER ,  FRIEDRICH URBAN

发明人： STEIGERWALD KLAUS ,  BUECHNER OSKAR ,  BALL WOLFGANG ,  PFANNMUELLER HELMUT ,  URBAN FRIEDRICH

IPC分类号： C08F10/00 ,  C08F3/04 ,  C08F1/60 ,  C08F1/80

CPC分类号： C08F10/00 ,  C08F4/28

摘要： PRODUCTION OF ETHYLENE HOMOPOLYMERS AT ELEVATED TEMPERATURE UNDER SUPERATMOSPHERIC PRESSURE IN A TUBE REACTOR HAVING TWO SUCCESSIVE REACTION ZONES, A MIXTURE OF ETHYLENE, POLYMERIZATION INITIATOR AND POLYMERIZATION MODIFIER BEING INTRODUCED CONTINUOUSLY AT THE BEGINNING OF EACH REACTION ZONE. AT THE BEGINNING OF THE FIRST REACTION ZONE A MIXTURE OF ETHYLENE, AN ORGANIC HYDROPEROXIDE HAVING A HALF VALUE TEMPERATURE IN THE RANGE FROM 200* TO 260*C. AND A POLYMERIZATION MODIFIER HAVING A C5 VALUE OF FROM 2.0X10**-2 TO 1.0X10**-4 IS INTRODUCED AND AT THE BEGINNING OF THE SECOND REACTION ZONE A MIXTURE OF AN ORGANIC PEROXIDE HAVING A HALF VALUE TEMPERATURE IN THE RANGE FROM 150* TO 195*C. AND A POLYMERIZATION MODIFIER HAVING A C5 VALUE OF FROM 2.0 X10**-2 TO 1.0X10**-4 IS INTRODUCED. THE HALF VALUE TEMPERATURES OF THE TWO ORGANIC PEROXIDES AT LEAST 20*C. APART. THE PRODUCTS HAVE A WIDE MOLECULAR WEIGHT DISTRIBUTION AND A PRACTICALLY DEVOID OF VERY HIGH MOLECULAR WEIGHT CONSTITUENTS.