球形氯化镁载体制备技术进展

doi:10.16085/j.issn.1000-6613.2016.s1.026

化工进展 ›› 2016, Vol. 35 ›› Issue (S1): 152-158.DOI: 10.16085/j.issn.1000-6613.2016.s1.026

球形氯化镁载体制备技术进展

崔伟松¹, 李应文¹, 义建军¹, 李振昊¹, 陈建峰², 邵磊²

1. 中国石油天然气股份有限公司石油化工研究院, 北京 102206;
2. 北京化工大学教育部超重力工程研究中心, 北京 100029

收稿日期:2015-11-30 修回日期:2016-01-11 出版日期:2016-06-30 发布日期:2016-07-08
通讯作者: 邵磊,教授,博士生导师,主要从事过程强化技术研究。E-mail shaol@mail.buct.edu.cn。
作者简介:崔伟松(1982-),男,工程师,主要从事聚烯烃催化剂研究。E-mail cuiweisong@petrochina.com.cn。

Advances in the preparation processes of spherical MgCl₂ support

CUI Weisong¹, LI Yingwen¹, YI Jianjun¹, LI Zhenhao¹, CHEN Jianfeng², SHAO Lei²

1. Petrochina Petrochemical Research Institute, Beijing 102206, China;
2. Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China

Received:2015-11-30 Revised:2016-01-11 Online:2016-06-30 Published:2016-07-08

摘要/Abstract

摘要： 球形氯化镁载体是氯化镁基齐格勒-纳塔催化剂的一种高效载体,尤其适用于丙烯聚合催化剂的制备,对于催化剂及聚合物的形态和性能有重要影响。球形氯化镁载体制备技术是此类催化剂开发过程中的核心技术之一。本文论述了氯化镁作为催化剂载体的优势,分析了研磨活化和化学活化对氯化镁性能的影响,并详细介绍了高速搅拌法、细管挤出法、喷雾成型法、剪切乳化法和超重力法等球形氯化镁载体制备技术的特点,指出在氯化镁载体制备过程中的关键控制因素是对乳液混合过程的强化,良好的乳液混合是制备形貌规整、粒径分布窄的氯化镁球形载体的先决条件。

关键词: 催化剂载体, 制备, 粒度分布, 球形氯化镁

Abstract: Spherical MgCl₂ is an efficient support for Ziegler-Natta catalyst and suitable for the preparation of catalysts for propylene polymerization.The MgCl₂ support has significant influence on the morphologies and properties of the catalysts and polymers.The preparation process of the spherical MgCl₂ support is one of the core technologies in such catalyst development.This paper presents the advantages of the MgCl₂ support, analyzes the effect of milling activation and chemical activation on the properties of MgCl₂.The characteristics of the preparation processes of the spherical MgCl₂ support including high-speed stirring, tubule extrusion, spray shaping, shearing emulsification and high gravity are discussed in detail.It is pointed out that the intensification of the emulsion mixing is the controlling factor in the preparation of MgCl₂ support, and good emulsion mixing is the prerequisite for the preparation of spherical MgCl₂ support with regular morphology and narrow size distribution.

Key words: catalyst support, preparation, size distribution, spherical MgCl₂

中图分类号:

TQ32

崔伟松, 李应文, 义建军, 李振昊, 陈建峰, 邵磊. 球形氯化镁载体制备技术进展[J]. 化工进展, 2016, 35(S1): 152-158.

CUI Weisong, LI Yingwen, YI Jianjun, LI Zhenhao, CHEN Jianfeng, SHAO Lei. Advances in the preparation processes of spherical MgCl₂ support[J]. Chemical Industry and Engineering Progree, 2016, 35(S1): 152-158.

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Advances in the preparation processes of spherical MgCl₂ support

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球形氯化镁载体制备技术进展

Advances in the preparation processes of spherical MgCl2 support

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Advances in the preparation processes of spherical MgCl₂ support