Formation of zinc chloride catalysts based on /gamma/-Al/sub 2/O/sub 3/
X-ray phase analysis, thermal analysis, and diffuse reflection electronic spectroscopy have been used in studying the formation of the catalytic system ZnCl/sub 2///gamma/-Al/sub 2/O/sub 3/. It has been shown that interaction of the salt component with the support leads to the formation of a complex multiphase system including excess zinc-containing phases with various compositions, structures cross-linked to the surface, and spinel-type structures formed by insertion of zinc ions into the surface layers of the lattice of the support. The kinds of phases that result from this interaction depend on the conditions of catalyst formation and on the phase composition of the support. The catalytic system does not contain and compositions that are fusible within the interval of temperatures investigated (20-500/degree/C).
- Research Organization:
- State Scientific-Research and Design Institute of the Nitrogen Industry and Products of Organic Synthesis (USSR)
- OSTI ID:
- 5853105
- Journal Information:
- Kinet. Catal. (Engl. Transl.); (United States), Vol. 28:5; Other Information: Translated from Kinet. Catal.; 28, No. 5, 1178-1182 (Sep-Oct 1987)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
ALUMINIUM OXIDES
PHASE STUDIES
CATALYSTS
SYNTHESIS
ZINC CHLORIDES
CATALYST SUPPORTS
CATALYTIC EFFECTS
CRYSTAL LATTICES
DIFFERENTIAL THERMAL ANALYSIS
ELECTRON SPECTRA
HETEROGENEOUS CATALYSIS
THERMAL GRAVIMETRIC ANALYSIS
X-RAY DIFFRACTION
ALUMINIUM COMPOUNDS
CATALYSIS
CHALCOGENIDES
CHEMICAL ANALYSIS
CHLORIDES
CHLORINE COMPOUNDS
COHERENT SCATTERING
CRYSTAL STRUCTURE
DIFFRACTION
GRAVIMETRIC ANALYSIS
HALIDES
HALOGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
SCATTERING
SPECTRA
THERMAL ANALYSIS
ZINC COMPOUNDS
ZINC HALIDES
400201* - Chemical & Physicochemical Properties
360602 - Other Materials- Structure & Phase Studies
360202 - Ceramics
Cermets
& Refractories- Structure & Phase Studies