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International Journal of Engineering، جلد ۳۷، شماره ۱، صفحات ۱۴-۲۴
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عنوان انگلیسی Development of a Novel Super-active Ziegler-Natta Polyethylene Catalyst: Study on Structure, Performance and Application
چکیده انگلیسی مقاله In this research, the synthesis process of a novel super-active catalyst, named SAC-510 is investigated at experimental scale. The authors compared the analyzed data against those derived from a popular catalyst, Finix-112, and several other available alternatives. The data indicated that SAC-510 catalyst derived the optimal activity from its spherical particles. Titanium and other chemical elements were less uniformly distributed in SAC-510 than in Finix-112 samples, with the mean particle size being slightly larger than that found in Finix-112. The pores’ dispersion and sizes in SAC-510 were not as uniformly distributed as those in Finix-112 catalyst. Lastly, both SAC-510 and Finix-112 catalysts were equally adaptable for use in high-density polyethylene pipes (grade 100). Compared to other commercially available catalysts, the major advantages of SAC-510 are the economical use of hydrogen and monomers, and low purging of its valuable gases during the polymerization process. The results obtained are as follows: the increase in oxidative induction time efficiency with SAC catalyst compared to Finix catalyst by 5.8%, activity by 35.7%, hydrogen responsibility by 24.39%, 1-butene consumption by 8.38% and triethylaluminium consumption by 27.27%.
کلیدواژه‌های انگلیسی مقاله Polyethylene pipes,Malvern,Super-active catalyst-510,Ziegler-Natta catalysts
نویسندگان مقاله M. A. Nikoohemmat |
Department of Chemical Engineering, Arak Branch, Islamic Azad University, Arak, Iran

H. Mazaheri |
Department of Chemical Engineering, Arak Branch, Islamic Azad University, Arak, Iran

A. H. Joshaghani |
Department of Chemical Engineering, Arak Branch, Islamic Azad University, Arak, Iran

E. Joudaki |
Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak, Iran

نشانی اینترنتی https://www.ije.ir/article_179089_e778226a22619c5f7e16577e919bd071.pdf
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