Effect of Chemical Composition and Preparation Conditions on Properties of Nickel Catalysts. 10. Effect of Nature of Precipitant on Physicochemical Properties of Nickel-Chromium Catalysts Full article
Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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Output data | Year: 1977, Volume: 18, Number: 2, Pages: 392-398 Pages count : 7 | ||
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Abstract:
The effect of the pptg. agent on the chemical and phase composition, reducibility, and dispersion of catalysts was studied by using NH3 and NH4CO3 for the preparation of Ni-Cr catalysts from the mixture of their nitrates. The properties of dried, heated, and reduced catalysts as studied by x-ray structural analysis and by thermogravimetry were compared with those of catalysts prepared by using Na carbonate as the pptg. agent. The nature of the pptg. agent detects the chemical composition of the ppt. and affects its decomposition during heating, the content of admixtures, and the dispersion degrees of dried, heated, and reduced samples. Highly-dispersed catalysts, containing <40% Ni, can be prepared only by noncarbonate pptg. agents. The presence of Na decreases the reducibility of Ni-Cr catalysts.
Cite:
Simonova L.G.
, Dzis'ko V.A.
, Borisova M.S.
, Ostan'kovich A.A.
, Ketchik S.V.
Effect of Chemical Composition and Preparation Conditions on Properties of Nickel Catalysts. 10. Effect of Nature of Precipitant on Physicochemical Properties of Nickel-Chromium Catalysts
Kinetics and Catalysis. 1977. V.18. N2. P.392-398. WOS РИНЦ
Effect of Chemical Composition and Preparation Conditions on Properties of Nickel Catalysts. 10. Effect of Nature of Precipitant on Physicochemical Properties of Nickel-Chromium Catalysts
Kinetics and Catalysis. 1977. V.18. N2. P.392-398. WOS РИНЦ
ArticleLinkType.TRANSLATED_TO_ORIGINAL:
Симонова Л.Г.
, Дзисько В.А.
, Борисова М.С.
, Останькович А.А.
, Кетчик С.В.
Влияние химического состава и условий приготовления на свойства никелевых катализаторов. X. Влияние природы осадителя на физико-химические свойства никельхромовых катализаторов
Кинетика и катализ. 1977. Т.18. №2. С.467-474. РИНЦ
Влияние химического состава и условий приготовления на свойства никелевых катализаторов. X. Влияние природы осадителя на физико-химические свойства никельхромовых катализаторов
Кинетика и катализ. 1977. Т.18. №2. С.467-474. РИНЦ
Dates:
Submitted: | Jan 21, 1976 |
Identifiers:
Web of science | WOS:A1977ED57600012 |
Elibrary | 30626165 |
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