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Bleaching Properties of Alumina-Pillared Acid-Activated Montmorillonite
Acid Activation Alumina-Pillared Montmorillonite Bleaching Clay Cottonseed Oil
2011/12/6
Abstract: The bleaching of cottonseed oil by alumina-pillared (Al-pillared) acid-activated clays was investigated. Acid activation of a Ca-rich montmorillonite (CMS STx-1) following treatment with 1, ...
Physico-Chemical Characterization and Catalytic Properties of Copper-Doped Alumina-Pillared Montmorillonites
Alumina Copper Copper Catalyst Montmorillonite Phenol Hydroxylation Pillared Clay
2011/12/2
Abstract: Cu-doped alumina-pillared montmorillonite samples have been prepared and characterized with X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), electron spin resonance (ESR) and inductive...
The Natural Occurrence of Eta-Alumina (兣-Al2O3) in Bauxite
Akdalaite Bauxite Chi-alumina Eta-alumina Gamma-alumina Pisoliths Poorly-diffracting material Tohdite
2011/12/27
Approximately 20 wt.% of the bauxite from Andoom in northern Queensland, Australia is composed of material that cannot be accounted for by identifiable well-crystallized phases. This poorly- diffracti...
Effects of the Structure of Silica-Alumina Gel on the Hydrothermal Synthesis of Kaolinite
Gel structure Hydrothermal synthesis Kaolinite Nuclear magnetic resonance Silica-alumina gel
2011/12/29
Kaolinite was hydrothermally synthesized from two kinds of silica-alumina gels to examine the effect of the structure of the starting material. Two kinds of gels were prepared by precipitation at diff...
Synthesis of Highly Microporous and Hydrophilic Alumina-Pillared Montmorillonite: Water-Sorption Properties
Hydrophobicity Montmorillonite Pillared interlayer complex Porosity Surface condensation Thermal treatment X-ray powder diffraction
2012/1/4
A montmorillonite exchanged with large hydroxy-Al cations was thermally treated to convert the hydroxy cations to oxide pillars and to generate permanent microporosity in the interlayers. The pillared...
Physical Arrangement of High-Alumina Clay Types in a Missouri Clay Deposit and Implications for their Genesis
Boehmite Burley clay Chlorite Diaspore Flint clay Genesis Lithium Scanning electron microscopy
2012/2/7
Sedimentologic zones that are differentiated by changes in lithology, mineralogy, chemical composition, and crystal morphology observable in scanning electron micrographs occur in Missouri high-alumin...
Formation of Phyllosilicates and Zeolites from Pure Silica-Alumina Gels
Phyllosilicates Zeolites Pure Silica-Alumina Gels
2012/2/13
The hydrothermal aging of pure silica—alumina gels in presence of 10 ml of 0.1 N sodium hydroxide solution at 175, 150 and 130°C for 8–30 days led to the synthesis of zeolites and the phyllosilicates,...