Bottom-Up Synthesis of Multi-Grained Ziegler–Natta Catalyst Based on MgO/MgCl2/TiCl4 Core–Shell Catalyst

Catalysts

卷:11

Patchanee Chammingkwan¹  Toru Wada¹  Yusuke Bando¹  Toshiaki Taniike¹  Tomohiro Ikeda¹ 

[1] Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi 923-1292, Ishikawa, Japan;

关键词: heterogeneous catalysts;    Ziegler–Natta catalysts;    polymerization;    co-polymerization;    ethylene;    propylene;   

DOI  :  10.3390/catal11091092

来源: DOAJ

【 摘 要 】

Morphology control plays a major role in the design of solid catalysts. Since the heterogeneous Ziegler–Natta catalyst (ZNC) is based on the in situ synthesis of MgCl₂ support in a top-down manner, the individual control of the exterior and the interior structure of the catalyst macro-particles is challenging. In this study, we successfully prepared a ZNC with a multi-grain interior structure by the spray-drying of MgO nanoparticles, inspired by the fact that the MgO/MgCl₂/TiCl₄ core–shell catalyst can maintain the morphology of the raw MgO nanoparticles. This catalyst is the first example of the bottom-up preparation of MgCl₂-supported ZNC. Here, we report its basic preparation method, characterization results, and performance in the homo-polymerization of ethylene and propylene, and copolymerization with 1-hexene.

【 授权许可】

Unknown