Abstract: The influence of the conditions of thermal treatment of Al2(SO4)(3)·18H(2)O on the properties of the products formed is studied by a complex of physicochemical methods. The catalytic activity of these products in the model reactions of L-butene isomerization into 2-butenes and dehydration of isobutanol is investigated. It is shown by Al-27 MAS NMR that the coordination sphere of aluminum changes upon calcination: water molecules are substituted by hydroxyl and sulfate groups. The processes of hydrolysis and condensation of AlOH and SOH groups leading to the substitution of all ligands by the sulfate groups are stopped at temperatures below 250°С. The specific surface area and catalytic activity of aluminum sulfates in the reactions under study are governed by the conditions of thermal treatment. The sample of anhydrous crystalline Al-2(SO4)(3) calcined at 400-450°С exhibits the highest catalytic activity.

Cite: Kotsarenko N.S. , Shmachkova V.P. , Mastikhin V.M.
Composition, Physicochemical Properties, and Catalytic Properties of the Products of Thermal Treatment of Al2(SO4)3·18H2O
Kinetics and Catalysis. 1998. V.39. N4. P.530-537. WOS Scopus РИНЦ ANCAN

Original: Коцаренко Н.С. , Шмачкова В.П. , Мастихин В.М.
Состав, физико-химические и каталитические свойства продуктов термообработки Al2(SO4)3·18H2O
Кинетика и катализ. 1998. Т.39. №4. С.575-582. РИНЦ publication_identifier_short.rz_viniti_identifier_type

Dates:

Submitted:	Jun 13, 1996
Published print:	Jul 1, 1998

Identifiers:

Web of science:	WOS:000076157100015
Scopus:	2-s2.0-0542441441
Elibrary:	13300428
Chemical Abstracts:	1998:653472
Chemical Abstracts (print):	129:236138

Citing:

DB	Citing
Web of science	3