Pilot Plant Study on the Polymerization of Isobutene Using Silica-Supported Methylaluminoxane,Industrial & Engineering Chemistry Research

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Pilot Plant Study on the Polymerization of Isobutene Using Silica-Supported Methylaluminoxane
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-01-14 , DOI: 10.1021/acs.iecr.9b06430
Kevin Elkins ₁ , John Sawyer ₂ , Stewart P. Lewis ₃ , Parashuram Jadhav ₄

Affiliation

Pilot plant scale studies on the polymerization of isobutene in n-hexane, induced by silica-supported methylaluminoxane and 2-bromobutane, were conducted in a stirred 7.5 L kettle reactor. Experimentation involved batch style reaction for both single and multiple/sequential runs. Conversion to the polymer was quantitative in all instances, and polymer molecular weights (MWs) are quite favorable for the reaction temperatures employed. Additionally, polymerization was well-behaved, giving rise to a consistent product from one run to another and tests show that the system is potentially suitable for continuous production methods. Due to the heterogeneous nature of the initiator system, high-purity polyisobutene was obtained by simple filtration of the reaction mixture followed by volatilization of solvent.

中文翻译：

二氧化硅负载的甲基铝氧烷聚合异丁烯的中试研究

异丁烯的聚合上试规模研究Ñ己烷，诱导二氧化硅负载甲基铝氧烷和2-溴丁烷，在搅拌7.5升反应釜反应器中进行。实验涉及针对单次运行和多次/顺序运行的批处理式反应。在所有情况下，向聚合物的转化都是定量的，并且聚合物分子量（MWs）对于所采用的反应温度而言是非常有利的。此外，聚合表现良好，一次生产到另一次生产的产品一致，测试表明该系统可能适用于连续生产方法。由于引发剂体系的异质性，通过简单过滤反应混合物，然后蒸发溶剂，可得到高纯度的聚异丁烯。

更新日期：2020-01-14

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