scholarly journals Effect of Silica Alumina Ratio and Thermal Treatment of Beta Zeolites on the Adsorption of Toluene from Aqueous Solutions

Minerals ◽  
2017 ◽  
Vol 7 (2) ◽  
pp. 22 ◽  
Author(s):  
Elena Sarti ◽  
Tatiana Chenet ◽  
Luisa Pasti ◽  
Alberto Cavazzini ◽  
Elisa Rodeghero ◽  
...  
Keyword(s):  
Thermal Treatment ◽  
Aqueous Solutions ◽  
Beta Zeolites ◽  
Silica Alumina ◽  
Silica Alumina Ratio

Fast synthesis of submicron aluminosilicate (low silica/alumina ratio) zeolites under solventless microwave radiation

RSC Advances ◽  
2015 ◽  
Vol 5 (116) ◽  
pp. 95463-95466 ◽  
Author(s):  
Shangjing Zeng ◽  
Runwei Wang ◽  
Yongcun Zou ◽  
Jingru Fu ◽  
Zhongtao Zhang ◽  
...  
Keyword(s):  
Microwave Radiation ◽  
Silica Alumina ◽  
Fast Synthesis ◽  
Silica Alumina Ratio

Sub-micron aluminosilicate zeolites with a low silica/alumina ratio are successfully synthesized by microwave solventless method.

Coke removal of the HZSM-12 zeolite with different silica/alumina ratio

2004 ◽  
Vol 75 (2) ◽  
pp. 699-704 ◽  
Author(s):  
A. O. S. Silva ◽  
M. J. B. Souza ◽  
J. M. F. B. Aquino ◽  
V. J. Fernandes Jr. ◽  
A. S. Araújo
Keyword(s):  
Silica Alumina ◽  
Coke Removal ◽  
Silica Alumina Ratio

Controlled Synthesis of Morphological Well-Defined BiVO4 Pigment Particles Supported on Glass Substrates

2006 ◽  
Vol 514-516 ◽  
pp. 1211-1215 ◽  
Author(s):  
Sandra G. Cruz ◽  
Penka I. Girginova ◽  
Márcia C. Neves ◽  
Petr Smolka ◽  
Robert Kusak ◽  
...  
Keyword(s):  
Thermal Treatment ◽  
Aqueous Solutions ◽  
Organic Ligands ◽  
Controlled Synthesis ◽  
Spectroscopic Techniques ◽  
Hydrothermal Conditions ◽  
Glass Substrates ◽  
Chemical Strategies

An overview of the chemical strategies developed in our laboratories to obtain welldefined BiVO4 particles is presented. The methods rely on the thermal treatment (including hydrothermal conditions) of aqueous solutions containing bismuth(III) cations, vanadium(V) species and organic ligands. The use of distinct polyaminocarboxylates and cyclodextrins as possible morphological modifiers was investigated. NMR spectroscopic techniques were applied to the distinct chemical baths in order to have a better insight on the nature of the solute precursors.

The Preparation of Modified ZSM - 35 and its Catalysis Effect Analysis on N-Butene Isomerization

2014 ◽  
Vol 898 ◽  
pp. 140-143 ◽  
Author(s):  
Yun Feng Hu ◽  
Bo Yang ◽  
Lin Jie Hu ◽  
Li Jie Liu
Keyword(s):  
Molecular Sieve ◽  
Porous Silica ◽  
Isomerization Reaction ◽  
Effect Analysis ◽  
Nitrogen Dilution ◽  
Silica Alumina ◽  
Porous Silica Gel ◽  
Reaction Performance ◽  
Silica Alumina Ratio ◽  
Butene Isomerization

In order to study the effect that the modified ZSM - 35 as a catalyst brings to n-butene isomerization catalysis. In this paper, by considering the performance analysis brought by different silica alumina ratio, reaction temperature, concentration of nitrogen and macro porous silica gel embellish acting on butene isomerization reaction of modified ZSM - 35 molecular sieve catalyst , Al2O3 samples being "15" shows better performance; Adding appropriate amount of silicon carbide catalyst or modified silicone can further improve the selectivity of butene; Nitrogen dilution has certain help in improving butene isomerization reaction performance.

scholarly journals Effect of Metal Addition and Silica/Alumina Ratio of Zeolite on the Ethanol-to-Aromatics by Using Metal Supported ZSM-5 Catalyst

2013 ◽  
Vol 51 (4) ◽  
pp. 418-425 ◽  
Author(s):  
Han-Gyu Kim ◽  
Yoon-Cheol Yang ◽  
Kwang-Eun Jeong ◽  
Tae-Wan Kim ◽  
Soon-Yong Jeong ◽  
...  
Keyword(s):  
Silica Alumina ◽  
Metal Addition ◽  
Silica Alumina Ratio

scholarly journals MICROW AVE-ASSISTED SYNTHESIS OF LOW-SILICA/ALUMINA-RATIO ZEOLITES FROM GEOTHERMAL SILICA

2011 ◽  
Vol 56 (3) ◽  
pp. 752-758 ◽  
Author(s):  
BEATRIZ DE LEÓN ◽  
PRÓCORO GAMERO ◽  
CECILIA MONTERO-OCAMPO ◽  
GREGORIO VARGAS ◽  
J. IVÁN ESCALANTE-GARCÍA ◽  
...  
Keyword(s):  
Silica Alumina ◽  
Silica Alumina Ratio

Acid site properties of thermally stable, silica-doped alumina as a function of silica/alumina ratio and calcination temperature

2014 ◽  
Vol 482 ◽  
pp. 16-23 ◽  
Author(s):  
Maryam Khosravi Mardkhe ◽  
Kamyar Keyvanloo ◽  
Calvin H. Bartholomew ◽  
William C. Hecker ◽  
Todd M. Alam ◽  
...  
Keyword(s):  
Calcination Temperature ◽  
Acid Site ◽  
Thermally Stable ◽  
Silica Alumina ◽  
Silica Alumina Ratio

scholarly journals Influence of thermal treatment on bentonite used as adsorbent for Cd, Pb, Zn retention from mono-solute and poly-solute aqueous solutions

2012 ◽  
Vol 15 (4) ◽  
pp. 549-553 ◽  
Author(s):  
Susana Yamila Martinez Stagnaro ◽  
Cristina Volzone ◽  
Mónica Luciana Rueda
Keyword(s):  
Thermal Treatment ◽  
Aqueous Solutions

Laterite and lateritic soils in Sierra Leone

1927 ◽  
Vol 17 (4) ◽  
pp. 530-547 ◽  
Author(s):  
F. J. Martin ◽  
H. C. Doyne
Keyword(s):  
Sierra Leone ◽  
Clay Fraction ◽  
Lateritic Soils ◽  
Silica Alumina ◽  
Silica Alumina Ratio

(1) The formation of laterite and lateritic soils in Sierra Leone has been studied and the mode of formation and the composition of these soils is described.(2) It is suggested that since the clay fraction is regarded as the most important fraction in determining the reactions of a soil the classification of laterite and lateritic soils should be based on an examination of the clay fraction. It is further suggested that where the silica/alumina ratio in the clay fraction falls below 2·0 the soil should be described as “lateritic,” and where this ratio falls below 1·33 the soil should be described as laterite.

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