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1. 发明授权

US06645900B2 Optimized method for the production of catalyst supports based on silica gel and chromium catalysts supported on silica gel 有权
标题翻译：基于硅胶和载于硅胶上的铬催化剂生产催化剂载体的优化方法
公开(公告)号：US06645900B2
公开(公告)日：2003-11-11
申请号：US10087012
申请日：2002-02-28
申请人： Paulus de Lange , Guido Funk , Andreas Deckers , Peter Kölle
发明人： Paulus de Lange , Guido Funk , Andreas Deckers , Peter Kölle
IPC分类号： B01J29035
CPC分类号： C08F10/00 , B01J21/08 , B01J37/0072 , B01J37/036 , C08F4/02 , C08F4/24
摘要： The invention relates to a catalyst support and to a method for the production of the catalyst support comprising the following steps: a) production of a silicic acid hydrogel having a solids content of from 10 to 25% by weight (calculated as SiO2) whose particles are substantially spherical, b) extraction of the hydrogel particles with an alcohol until at least 60% of the water present in the hydrogel has been removed, c) drying of the resultant hydrogel until the residual alcohol content is less than 10% by weight (xerogel formation) at temperatures of ≧160° C. at atmospheric pressure using an inert entraining gas, d) setting of the desired particle size of the resultant xerogel, in which the hydrogel particles have a particle size of ≧8 mm before the extraction, and to a catalyst and to a method for the production of the catalyst by loading the catalyst support with a chromium compound. The invention also relates to a method for the production of polyolefins using the catalyst.
摘要翻译：本发明涉及一种催化剂载体和用于生产催化剂载体的方法，包括以下步骤：a）制备固体含量为10至25重量％（以SiO 2计）的硅酸水凝胶，其颗粒基本上是球形的，b）用醇萃取水凝胶颗粒，直到水凝胶中存在的至少60％的水已被除去，c）干燥所得的水凝胶，直到残余的醇含量低于10重量％干燥剂形成），在大气压下使用惰性夹带气体，在大气压力= 160℃的温度下，d）设定所得干燥剂的所需粒度，其中水凝胶颗粒的颗粒尺寸> 萃取和催化剂的制备方法，以及通过用铬化合物负载催化剂载体来生产催化剂的方法。本发明还涉及使用该催化剂生产聚烯烃的方法。

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