Study of the catalytic properties of pentasil-containing composites in transformation of hydrocarbons 4. Formation of products of condensation during oligomerization and aromatization of ethylene on the pentasil-aluminum oxide system

1990 ◽  
Vol 39 (6) ◽  
pp. 1115-1120
Author(s):  
V. I. Yakerson ◽  
V. D. Nissenbaum ◽  
T. V. Vasina ◽  
L. I. Lafer ◽  
S. A. Isaev ◽  
...  
Keyword(s):  
Aluminum Oxide ◽  
Catalytic Properties ◽  
Oxide System

Catalytic Conversion of Isopropanol on a Heteropoly Acid–η-Aluminum Oxide System

2020 ◽  
Vol 94 (2) ◽  
pp. 301-309
Author(s):  
E. A. Guseinova ◽  
K. Yu. Adzhamov ◽  
S. E. Yusubova
Keyword(s):  
Aluminum Oxide ◽  
Heteropoly Acid ◽  
Catalytic Conversion ◽  
Oxide System

scholarly journals A Study of the Catalytic Properties of Synthetic Aluminosilicates of Different Morphologies in Cracking Reactions of the Byproducts of Isoprene Synthesis

2021 ◽  
Vol 47 (5) ◽  
pp. 469-480
Author(s):  
Yu. A. Alikina ◽  
E. A. Spetsov ◽  
N. Yu. Ulyanova ◽  
O. Yu. Golubeva
Keyword(s):  
Catalytic Activity ◽  
Aluminum Oxide ◽  
Specific Surface ◽  
Surface Area ◽  
Catalytic Properties ◽  
Raw Materials ◽  
Layered Silicates ◽  
Chemical Compositions ◽  
Cyclic Compounds ◽  
Isoprene Synthesis

Abstract The catalytic activity of synthetic samples of aluminosilicates of various morphologies and chemical compositions in a cascade of reactions that are byproducts (BPs) in the decomposition process of 4,4‑dimethyl-1,3-dioxane is studied. Aluminosilicates with montmorillonite structures (Na0.2Al1.8Mg0.2Si4O10(OH)2⋅nH2O, Mg3Si4O10(OH)2⋅nH2O), and kaolinite (Al2Si2O5(OH)4) with the spherical and platy morphologies of particles, as well as their porous-textural characteristics and surface properties, are studied. It is shown that the specific surface area of the studied samples, depending on the composition, varies from 11 to 470 m2/g, and the content of aluminum oxide in the samples ranged from 0 to 24 wt %. It is found that layered silicates with a montmorillonite structure contribute to reducing the gasification of organic raw materials and increasing the yield of isoprene. Kaolinite with a spherical morphology of particles increases the yield of formaldehyde, and with a platy morphology of particles, it increases the degree of decomposition of heteroatomic and cyclic compounds.

Ceramic Composites of the Zirconium Dioxide and Aluminum Oxide System Including Strontium Hexaaluminate

2021 ◽  
Author(s):  
L. I. Podzorova ◽  
A. A. Il’icheva ◽  
V. P. Sirotinkin ◽  
O. S. Antonova ◽  
A. S. Baikin ◽  
...  
Keyword(s):  
Aluminum Oxide ◽  
Zirconium Dioxide ◽  
Ceramic Composites ◽  
Oxide System

Physico-chemical study on the state of cobalt in a precipitated cobalt-aluminum oxide system

2002 ◽  
Vol 4 (17) ◽  
pp. 4236-4243 ◽  
Author(s):  
Alexander A. Khassin ◽  
Vladimir F. Anufrienko ◽  
Vladimir N. Ikorskii ◽  
Lyudmila M. Plyasova ◽  
Galina N. Kustova ◽  
...  
Keyword(s):  
Aluminum Oxide ◽  
Chemical Study ◽  
Oxide System ◽  
The State ◽  
Physico Chemical

Preparation and characteristics of zirconium-aluminum oxide system

2007 ◽  
Vol 80 (9) ◽  
pp. 1461-1467 ◽  
Author(s):  
M. A. Kruglova ◽  
M. P. Yaroshenko
Keyword(s):  
Aluminum Oxide ◽  
Oxide System
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