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Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received June 4, 2001
Accepted July 9, 2001

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Liquid-Phase Degradation of HDPE over Alkali-Treated Natural Zeolite Catalysts

Seugn Won Jeong Jon-Ho Gon Seo^†

Department of Chemical Technology and The Research Institute for Catalysis, Chonnam National University, Gwangju 500-757, Korea

gseo@chonnam.ac.kr

Korean Journal of Chemical Engineering, November 2001, 18(6), 848-853(6), 10.1007/BF02705607

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Abstract

Catalytic performance of alkali-treated natural zeolites was studied in the liquid-phase catalytic degradation of HDPE. Alkali treatment of natural zeolite with a moderate NaOH solution brought about the formation of mesopores and a decrease in acid site density, resulting in a considerable improvement of its catalytic activity. However, alkali treatment with highly concentrated NaOH solutions induced zeolite structure destruction, resulting in lower activity. HDPE conversion and product selectivity of alkali-treated natural zeolites were discussed in terms of their pore structures, acidities and the diffusion properties of large molecules.

Keywords

HDPE Natural Zeolite Degradation Alkali Treatment

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