公开(公告)号：US4326048A

公开(公告)日：1982-04-20

申请号：US153773

申请日：1980-05-27

Applicant: Jack F. Stevens ,  Kwok-fu Lee ,  Philip M. Rose ,  David R. Kreider ,  Chi-Hung Lin

Inventor： Jack F. Stevens ,  Kwok-fu Lee ,  Philip M. Rose ,  David R. Kreider ,  Chi-Hung Lin

IPC: C08F2/34 ,  C08F10/00 ,  C08F2/42 ,  C08F10/06

CPC classification number: C08F10/00

Abstract: In a gas phase olefin polymerization using a transition metal compound/aluminum alkyl catalyst system, polymerization can be terminated rapidly by injecting an amount of carbon oxide and then restarting efficiently by addition of an amount of aluminum alkyl.

Abstract translation: 在使用过渡金属化合物/烷基铝催化剂体系的气相烯烃聚合中，通过注入一定量的碳氧化物可快速终止聚合，然后通过加入一定量的烷基铝来有效地重新开始聚合。

公开(公告)号：US4921919A

公开(公告)日：1990-05-01

申请号：US202092

申请日：1988-06-03

Applicant: Chi-Hung Lin ,  Jack F. Stevens ,  Benjamin S. Tovrog ,  Philip M. Rose

Inventor： Chi-Hung Lin ,  Jack F. Stevens ,  Benjamin S. Tovrog ,  Philip M. Rose

IPC: B01J8/36 ,  B01J8/38 ,  B01J19/00 ,  B01J19/18 ,  C08F2/34 ,  C08F10/00

CPC classification number: B01J19/18 ,  B01J19/002 ,  B01J8/36 ,  B01J8/382 ,  C08F10/00 ,  B01J2208/00 ,  B01J2219/00184 ,  B01J2219/182 ,  B01J2219/1943 ,  C08F2400/02 ,  Y10S526/901 ,  Y10S526/919

Abstract: The process and the system are used for carrying out the quench-cooled, vapor-phase polymerization of olefin monomer in a horizontally disposed reactor vessel which comprises contacting olefin monomer, or a mixture of olefin monomers, with a polymerization catalyst system in the presence of hydrogen in the reactor vessel to form a polymer product. The improvement comprises introducing a titanium-containing catalyst component of the catalyst system into the top side of the reactor vessel at a point adjacent to the upstream end of the reactor vessel and introducing a cocatalyst plus modifer component of the catalyst system into the top side of the reactor vessel at a distance, downstream of the point of introduction of the titanium-containing catalyst component, which is equal to 25% of the inside diameter of the reactor vessel.

Abstract translation: 该方法和系统用于在水平设置的反应器容器中进行烯烃单体的骤冷，气相聚合，其包括使烯烃单体或烯烃单体的混合物与聚合催化剂体系在存在 氢气在反应器容器中形成聚合物产物。 改进之处在于将催化剂体系的含钛催化剂组分引入到与反应器容器的上游端相邻的位置的反应容器的顶侧，并将催化剂体系的助催化剂加改性剂组分引入到 反应器容器在相对于反应器容器的内径的25％的距离处，引入含钛催化剂组分的下游。