Preparation of iron/zeolite catalysts active for toluene disproportionation in the presence of hydrogen sulphide
書誌事項
- 公開日
- 1988-01-01
- DOI
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- 10.1016/s0166-9834(00)80900-8
- 公開者
- Elsevier BV
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説明
Abstract Iron/zeolite catalysts were prepared by treating NH 4 Y-zeolite with aqueous solutions of ferric or ferrous salts. It was found that the catalysts prepared from the solution of ferric nitrate or sulphate exhibited high activity and selectivity for the toluene disproportionation reaction in the presence of hydrogen sulphide. Detailed investigations of the influences of preparation conditions, such as the kind of starting iron salt solution and treatment time, revealed that the iron species active for the toluene disproportionation could be supported on zeolite under such conditions that significant dealumination took place simultaneously from the zeolite framework. The spectroscopic evidence collected from Fourier Transform IR and X-ray diffraction suggested that the active species might be Fe 3+ containing clusters which were bonded to zeolite framework.
収録刊行物
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- Applied Catalysis
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Applied Catalysis 43 57-69, 1988-01-01
Elsevier BV