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    • 49. 发明授权
    • Removal of olefin monomer from olefin polymer
    • 从烯烃聚合物中除去烯烃单体
    • US4340701A
    • 1982-07-20
    • US163471
    • 1980-06-27
    • Bruce A. E. WillmoreJeffrey C. Greaves
    • Bruce A. E. WillmoreJeffrey C. Greaves
    • B01J8/00B01J8/10C08F6/00C08F6/28
    • B01J8/10B01J8/0015C08F6/005B01J2208/00761
    • A solid particulate olefin polymer containing monomer(s) dissolved therein is vigorously agitated mechanically to raise the temperature of the polymer to at least 90.degree. C. This vigorous agitation is effected in the absence of any purge gas and the unpolymerized olefin monomer desorbed from the polymer by the increase in temperature can readily be recovered and recycled to the polymerization vessel. The technique can form part of the work-up process in which the polymer is removed from the polymerization vessel and separated from unconverted monomer(s) prior to isolation. By this technique, propylene is removed from polypropylene without using a purge stream of nitrogen which makes recovery of the propylene difficult and expensive. The technique additionally heats up the polymer which can be advantageous for subsequent processing. Apparatus for effecting the process includes an agitation vessel which is connected, preferably through an intermediate separation vessel, to an olefin polymerization vessel.
    • 将溶解有其中的单体的固体颗粒状烯烃聚合物机械剧烈搅拌以将聚合物的温度升高至至少90℃。这种剧烈的搅拌在没有任何吹扫气体的情况下进行,并且未聚合的烯烃单体从 通过温度升高的聚合物可以容易地回收并再循环到聚合容器中。 该技术可以形成处理过程的一部分,其中聚合物从聚合容器中除去并在分离之前与未转化的单体分离。 通过这种技术,丙烯从聚丙烯中除去,而不使用氮气吹扫流,这使得丙烯的回收困难且昂贵。 该技术另外加热聚合物,这对后续处理是有利的。 用于实现该方法的装置包括优选通过中间分离容器连接到烯烃聚合容器的搅拌容器。
    • 50. 发明授权
    • Equipment for handling spent-aqueous Ziegler type catalyst in the
polymerization of olefins
    • 在烯烃聚合中处理废水齐格勒型催化剂的设备
    • US4137387A
    • 1979-01-30
    • US728155
    • 1976-09-30
    • Constantine D. MiserlisPeter J. Lewis
    • Constantine D. MiserlisPeter J. Lewis
    • B01J19/02C08F2/00C08F2/04C08F6/28
    • B01J19/02B01J2219/0204B01J2219/0209B01J2219/0245
    • In the polymerization under pressure of liquid olefin to polyolefin using a Ziegler type catalyst in which the reaction mass, comprising a mixture of catalyst and polyolefin dissolved in liquid monomer, is mixed in a mixer with water to kill the catalyst and reaction after which the highly corrosive aqueous solution of Ziegler catalyst is separated from the monomer and dissolved polymer in a settling tank; lining the inner wall of the mixer and/or settling tank and/or any other part of the equipment coming into contact with the aqueous Ziegler catalyst solution with an acid resistant brick lining having an intermediate membrane lining between it and such inner wall and in which the mortar of the brick lining is a carbon-filled furan polymer, in which the membrane is a fiber glass reinforced furan polymer and in which the brick lining is cemented to the membrane and the membrane is cemented to the inner wall by a carbon-filled furan polymer adhesive.
    • 在使用齐格勒型催化剂的液态烯烃在聚烯烃的聚合反应中,其中将包含溶解在液体单体中的催化剂和聚烯烃的混合物的反应物质与水混合,将其与水混合以杀死催化剂和反应, 将齐格勒催化剂的腐蚀性水溶液与单体和溶解的聚合物分离在沉降槽中; 将混合器和/或沉淀槽的内壁和/或与齐格勒(Ziegler)催化剂溶液接触的任何其它部分用耐酸砖和衬里在其内壁之间具有中间膜衬里,并且其中 砖衬里的砂浆是碳填充的呋喃聚合物,其中膜是玻璃纤维增​​强的呋喃聚合物,其中砖衬里粘合到膜上,并且膜通过填充碳的胶结物粘合到内壁 呋喃聚合物粘合剂。