De-foaming spray dried catalyst slurries
    2.
    发明授权
    De-foaming spray dried catalyst slurries 有权
    脱泡喷雾干燥催化剂浆液

    公开(公告)号:US07566677B2

    公开(公告)日:2009-07-28

    申请号:US11784898

    申请日:2007-04-10

    摘要: A method for preparing a spray dried catalyst and a low viscosity, low foam spray dried catalyst system for olefin polymerization are provided. In one aspect, the method includes preparing a catalyst system including one or more components selected from metallocenes, non-metallocenes, and activators, adding mineral oil to the catalyst system to form a slurry, and adding one or more liquid alkanes having three or more carbon atoms to the slurry in an amount sufficient to reduce foaming and viscosity of the slurry. In one aspect, the catalyst system includes one or more catalysts selected from metallocenes, non-metallocenes, and a combination thereof, wherein the catalyst system is spray dried. The system further includes mineral oil to form a slurry including a catalyst system, and one or more liquid alkanes having three or more carbon atoms in an amount sufficient to reduce foaming and viscosity of the slurry.

    摘要翻译: 提供了制备用于烯烃聚合的喷雾干燥催化剂和低粘度低泡沫喷雾干燥催化剂体系的方法。 一方面,该方法包括制备包括选自金属茂,非金属茂和活化剂中的一种或多种组分的催化剂体系,向催化剂体系中加入矿物油以形成浆料,并加入一种或多种具有三种或更多种的液态烷烃 碳原子以足以降低浆料的起泡和粘度的量加入到浆料中。 一方面,催化剂体系包括一种或多种选自金属茂,非金属茂及其组合的催化剂,其中催化剂体系是喷雾干燥的。 该系统还包括矿物油,以形成包括催化剂体系的浆料和一种或多种具有三个或更多个碳原子的液体烷烃,其量足以减少浆料的起泡和粘度。