Chemistry of inorganic compounds – Silicon or compound thereof – Oxygen containing
Patent
1974-06-07
1976-05-11
Ozaki, G.
Chemistry of inorganic compounds
Silicon or compound thereof
Oxygen containing
423333, 423334, 23313AS, C01B 3332
Patent
active
039564673
ABSTRACT:
An improved method for producing alkalimetal polysilicates is disclosed. The polysilicates are produced by hydrothermally reacting an aqueous dispersion of finely-divided silica and an alkali metal hydroxide. The synthesized reaction mixture is then spray dried with the solid product then being fractured and pulverized. The fractured particles are thereafter pelletized and dried in a fluidized bed to produce a product having predetermined characteristics or properties. The product can be used in adhesives, in the production of silica gel, in textiles and the like. However, their use as builders in detergents and in combination with known anionic, nonionic and amphoteric surface active compounds (surfactants) is disclosed as being particularly advantageous.
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