Process for the treatment of a silicate mineral

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United States of America Patent

PATENT NO 9631257
APP PUB NO 20150299823A1
SERIAL NO

14647277

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Abstract

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A process for the treatment of a silicate mineral, includes: preparing a first composition including an alkali metal magnesium orthosilicate and optionally either (i) magnesium oxide or (ii) an alkali metal silicate, by reaction, at a temperature from 500 to 1200° C., of an alkali metal carbonate compound, which compound is an alkali metal carbonate, an alkali metal bicarbonate or a mixture thereof, with a magnesium silicate, the molar ratio of alkali metal carbonate compound, expressed as alkali metal oxide of the formula R2O, in which R represents an alkali metal, to magnesium silicate, expressed as silicon dioxide, of the formula SiO2, being from 4:1 to 1:4, and contacting the first composition with water to produce a second composition comprising an amorphous magnesium silicate hydrate (M-S—H).

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  • LAFARGE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gartner, Ellis Saint Quentin Fallavier, FR 14 150
Meyer, Vincent Saint Quentin Fallavier, FR 17 45
Pisch, Alexander Saint Quentin Fallavier, FR 3 6

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