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Binary ion-exchanged X zeolites have 5-95% lithium and 5-95% of a divalent cation selected from the group consisting of cobalt, copper, chromium, iron, manganese, nickel, and their mixtures. These zeolites can be used as adsorbents in a process for separating nitrogen from gas mixtures containing nitrogen and less strongly adsorbed components such as oxygen, hydrogen, argon, or helium.
Detergent compositions containing layered silicate builders, secondary (2,3)-alkyl sulfate surfactants, and limited amounts of zeolite builders give good cleaning and minimal deposition of inorganic residues onto fabrics.
Square pillar-like ZSM-5 zeolite crystals are manufactured from aqueous reaction mixtures containing lower alkoxysilanes as silica sources, alumina sources, alkali metal sources, and tetrapropylammonium salts as crystallization agents by hydrothermal reaction in an autoclave at 160-200°C. The crystals have large apparent surface area.
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