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Cross-linked Smectites. V. Synthesis and Properties of Hydroxy-Silicoaluminum Montmorillonites and Fluorhectorites
Cross-linked smectite Fluorhectorite Hydroxy-SiAl oligocations Pillared montmorillonite Thermal stability
2012/1/11
Solutions containing hydroxy-SiAl (HSA) oligocations were prepared by two procedures: (1) treatment of a mixture of orthosilicic acid and AlCl3 with aqueous NaOH, followed by aging of the product; and...
Cross-linked Smectites. IV. Preparation and Properties of Hydroxyaluminum-Pillared Ce- and La-Montmorillonites and Fluorinated NH4+-Montmorillonites
Cross-linked smectite Hydroxy-Al Montmorillonite Pillared interlayered clays Pore-size distribution Rare earth elements
2012/1/13
Reaction of hydroxy-Al oligocations with Ce3+- and La3+-exchanged montmorillonites, using 1.25, 1.60, or 2.0 mmole Al/g smectite, yielded partially pillared hydroxy-Al montmorillonite products contain...
Cross-Linked Smectites. III. Synthesis and Properties of Hydroxy-Aluminum Hectorites and Fluorhectorites
Cross-linking Fluorhectorite Hectorite Hydroxyaluminum Molecular sieve Surface area Synthesis Thermal stability
2012/2/2
Interaction of La3+ and Ce3+-exchanged hectorites with oligomeric hydroxy-Al cations results in the formation of cross-linked hectorites possessing moderately high surface areas (∼220–280 m2/g) ...
Cross-Linked Smectites. II. Flocculation and Microfabric Characteristics of Hydroxy-Aluminum-Montmorillonite
Aluminum Flocculation Heterocoagulation Ligand Lithium Montmorillonite
2012/2/10
Cross-linking of Li-montmorillonite by hydroxy-aluminum oligomers was performed in a specially constructed mixing apparatus. Observations on flocculation and solution composition were carried out duri...
Cross-Linked Smectites. I. Synthesis and Properties of Hydroxy-Aluminum-Montmorillonite
Aluminum Electrostatic Hydroxide Oligomer Montmorillonite
2012/2/10
A stable porous system consisting of montmorillonite cross-linked by Al-hydroxide oligomers was synthesized by reacting at room temperature an aqueous solution of such oligomers with a unit-layer disp...