公开(公告)号：US20070185362A1

公开(公告)日：2007-08-09

申请号：US11654187

申请日：2007-01-17

申请人： James Lattner ,  John Walzer ,  Krishnan Sankaranarayanan ,  John Buchanan ,  Milind Ajinkya ,  Stephen Wood ,  Anastasios Skoulidas ,  Jay Reimers ,  Timothy Shaffer

发明人： James Lattner ,  John Walzer ,  Krishnan Sankaranarayanan ,  John Buchanan ,  Milind Ajinkya ,  Stephen Wood ,  Anastasios Skoulidas ,  Jay Reimers ,  Timothy Shaffer

IPC分类号： C07C2/02

CPC分类号： C07C2/32 ,  C07C2/36 ,  C07C2531/22 ,  C07C2531/24 ,  Y02P20/52 ,  C07C11/02

摘要： The present invention relates to a method for preparing olefin comonomers from ethylene. The comonomer generated can be used in a subsequent process, such as a polyethylene polymerization reactor. The comonomer generated can be transported, optionally without isolation or storage, to a polyethylene polymerization reactor. One method includes the steps of: feeding ethylene and a catalyst in a solvent/diluent to one or more comonomer synthesis reactors; reacting the ethylene and the catalyst under reaction conditions sufficient to produce an effluent comprising a desired comonomer; forming a gas stream comprising unreacted ethylene, and a liquid/bottoms stream comprising the comonomer, optionally by passing the effluent to one or more downstream gas/liquid phase separators; and purifying at least a portion of said liquid/bottoms stream by removing at least one of solid polymer, catalyst, and undesirable olefins therefrom.

摘要翻译： 本发明涉及从乙烯制备烯烃共聚单体的方法。 所产生的共聚单体可用于随后的方法中，例如聚乙烯聚合反应器。 生成的共聚单体可以任选地不经隔离或储存运输到聚乙烯聚合反应器中。 一种方法包括以下步骤：将乙烯和催化剂在溶剂/稀释剂中进料到一个或多个共聚单体合成反应器中; 在足以产生包含所需共聚单体的流出物的反应条件下使乙烯和催化剂反应; 形成包含未反应的乙烯的气流和包含共聚单体的液体/塔底物流，任选地通过使流出物流到一个或多个下游气/液相分离器; 并通过从其中除去固体聚合物，催化剂和不期望的烯烃中的至少一种来净化至少一部分所述液体/塔底物流。

公开(公告)号：US20070185358A1

公开(公告)日：2007-08-09

申请号：US11346652

申请日：2006-02-03

申请人： John Buchanan ,  Krishnan Sankaranarayanan ,  Milind Ajinkya ,  Stephen Wood ,  Anastasios Skoulidas

发明人： John Buchanan ,  Krishnan Sankaranarayanan ,  Milind Ajinkya ,  Stephen Wood ,  Anastasios Skoulidas

IPC分类号： C07C2/02

CPC分类号： C07C2/32 ,  Y02P20/584 ,  C07C11/02

摘要： The present invention relates to a method for preparing linear alpha olefin comonomers, such as 1-butene, 1-hexene or 1-octene, from ethylene monomer. The comonomer generated is stored on site for use in a subsequent process, such as a polyethylene polymerization reactor. The method includes the steps of feeding an ethylene monomer, and a catalyst in a solvent to one or more comonomer synthesis reactors; reacting the ethylene monomer and the catalyst in solvent under reaction conditions to produce an effluent stream comprising unreacted ethylene monomer, a catalyst in a solvent, and comonomer; passing the effluent stream to one or more downstream gas/liquid phase separators to form a gas stream of unreacted ethylene monomer, and a liquid stream of comonomer, and catalyst in a solvent; recycling to the one or more comonomer synthesis reactors the unreacted ethylene monomer and a portion of the liquid stream; and storing a remaining portion of said liquid stream for subsequent processing of the comonomer. Some of the benefits of the method include process simplification and reduced capital and operating costs from, inter alia, not having to recover ethylene in high purity nor separate catalyst from comonomer.

摘要翻译： 本发明涉及从乙烯单体制备线型α-烯烃共聚单体如1-丁烯，1-己烯或1-辛烯的方法。 生成的共聚单体存储在现场用于随后的方法，例如聚乙烯聚合反应器。 该方法包括将乙烯单体和溶剂中的催化剂进料到一个或多个共聚单体合成反应器中的步骤; 在反应条件下使乙烯单体和催化剂在溶剂中反应，以产生包含未反应的乙烯单体，在溶剂中的催化剂和共聚单体的流出物流; 将流出物流送到一个或多个下游气/液相分离器，以形成未反应的乙烯单体的气流，以及在溶剂中的催化剂的液体流; 将一个或多个共聚单体合成反应器再循环到未反应的乙烯单体和一部分液体流中; 并存储所述液体流的剩余部分，用于随后处理共聚单体。 该方法的一些优点包括工艺简化，并且降低了资本和操作成本，特别是不需要从高纯度回收乙烯，也不需要从共聚单体中分离催化剂。