Controlled precipitation of amorphous, silica from geothermal fl

Details Controlled precipitation of amorphous, silica from geothermal fl Controlled precipitation of amorphous, silica from geothermal fl

1990-03-20

1993-04-06

Kunemund, Robert

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

423335, 424 49, C01B 3318

Patent

active

052001652

ABSTRACT:
A method of obtaining precipitated amorphous silicas with substantially a tertiary aggregate structure (whether as an aqueous slurry, as cake, gel or otherwise) useful for coating and/or incorporation in paper and other substrates (e.g. rubber, plastics and the like) from a geothermal fluid (naturally or artificially generated--natural, including water infusion into geothermal systems) having sufficient silicic acid concentration, said method comprising:

REFERENCES:
patent: 4389385 (1983-06-01), Ramsay
Brine Clarification at Svartsengi, Iceland: Part I Effect of pH and Temperature on the Precipitation, by H. Thordarson and Th. Tomasson, The Science Institute, Reykjavik, Iceland and Icelandic Technological Institute, Reykjavik, Iceland, 1989.

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