Зависимость свойств фторированного активирующего носителя и нанесенного металлоценового катализатора сополимеризации этилена от предварительной термообработки мезопористого силикагеля

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详细

Использование активирующих носителей в приготовлении нанесенных металлоценовых катализаторов полимеризации олефинов, получаемых реакцией мезопористого силикагеля с алюминийорганическими соединениями, термоокислительной обработкой и фторированием, позволяет избежать использования дорогостоящего и малодоступного метилалюмоксана (МАО). В работе представлены результаты исследования влияния температуры прокаливания мезопористого силикагеля ES70 на основные характеристики фторированных носителей на его основе и способность полученных носителей к активации (η5-BuC5H4)2ZrCl2 в присутствии Et3Al. Эксперименты по суспензионной сополимеризации этилена и гексена‑1 выявили более высокую активность полученных катализаторов (2,2–2,5 кгПЭ/гкат) по сравнению с наносимым металлоценовым катализатором, синтезированным с использованием МАО (1,73 кгПЭ/гкат). Показано, что повышение температуры предварительного прокаливания носителя снижает активность катализатора, практически не влияя на характеристики сополимера, что может быть использовано в полиолефиновой индустрии для управления важным параметром производительности нанесенного металлоценового катализатора полимеризации этилена.

作者简介

O. Kostomarova

LLC 'SIBUR-Innovations', Tomsk, 634022 Russia

Email: phpasha1@yandex.ru
Tomsk, 634022 Russia

I. Nifant'ev

Institute of Petrochemical Synthesis named after A.V. Topchieva RAS, Moscow, 119991 Russia; Lomonosov Moscow State University, Faculty of Chemistry, Moscow, 119991 Russia

Email: phpasha1@yandex.ru
Moscow, 119991 Russia; Moscow, 119991 Russia

N. Kolosov

LLC 'SIBUR-Innovations', Tomsk, 634022 Russia

Email: phpasha1@yandex.ru
Tomsk, 634022 Russia

S. Zubkevich

LLC 'SIBUR-Innovations', Tomsk, 634022 Russia

Email: phpasha1@yandex.ru
Tomsk, 634022 Russia

P. Komarov

Institute of Petrochemical Synthesis named after A.V. Topchieva RAS, Moscow, 119991 Russia

Email: phpasha1@yandex.ru
Moscow, 119991 Russia

P. Ivchenko

Institute of Petrochemical Synthesis named after A.V. Topchieva RAS, Moscow, 119991 Russia

编辑信件的主要联系方式.
Email: phpasha1@yandex.ru
Moscow, 119991 Russia

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