Structural changes of phosphorus-modified HZSM-5 molecular sieves after high temperature hydrothermal treatment

Petrochemical Technology

Volumn 34, Issue 3, 2005, Pages 226-232

  Ke, Ming ^a   Wang, Xieqing ^b   Zhang, Fengmei ^b  

^a CHINA UNIVERSITY OF PETROLEUM   (China)

^b RESEARCH INSTITUTE OF PETROLEUM PROCESSING   (China)

Author keywords

Hydrothermal treatment; HZSM 5 molecular sieves; Invisible Al; Phosphorus modified; Structural model

Indexed keywords

EID: 18444399289     PISSN: 10008144     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (18)

1. He Mingyuan, Yang Xiaoming, Shu Xingtian, et al. Phosphorous Containing Zeolite Having MFI Type Structure. US Pat Appl, US 5951963. 1999.
2. Lischke G, Eckelt R, Jerschkewitz H G, et al. Spectroscopic and Physicochemical Characterization of P-Modified H-ZSM-5. J Catal, 1991,132:229-243.
3. Wu E L, Lawton S H, Olson D H, et al. ZSM-5-Type Materials. Factors Affecting Crystal Symmetry. J Phys Chem, 1979,83(21):2 777-2 781.
4. Deng Feng, Du Youru, Ye Chaohui, et al. Acid Sites and Hydration Behavior of de Aluminated Zeolite HZSM-5: a High-Resolution Solid State NMR Study. J Phys Chem, 1995,99:15 208-15 214.
5. Lercher J A, Rumplmayr G. Controlled Decrease of Acid Strength by Orthophosphoric Acid on ZSM-5. Appl Catal, 1986,25:215-222.
6. 31P NMR Study of ZRP Series Zeolite - a Modified HZSM-5 Type Zeolite Series. Petroleum Process Petrochem, 1997,28:10-16.
7. de Saldarriaga L S, Saldarrriaga C, Davis M E. Investigation into the Nature of a Silicoaluminophosphate with the Faujasite Structure. J Am Chem Soc, 1987,109:2 686-1 691.
8. 4-41 and SAPO-41. J Chem Soc Faraday Trans, 1998,94(5):723-727.
9. 4-5. Zeolites, 1985,5:53-56.
10. 29Si and P MAS n. m. r. Spectroscopy. Zeolites, 1990,10:151-156.
11. Zibrowius B, Loffler E, Hunger M. Multinuclear MAS n. m. r. and i. r. Spectroscopic Study of Silicon Incorporation into SAPO-5, SAPO-31, and SAPO-34 Molecular Sieves. Zeolites, 1992,12:167-174.