Patent ID: 9631257
Date: 2017-04-25
CPC Classifications: B01D,B01J,C01B,C01F,C04B,C22B,Y02C,Y02P

Claim:
1. A process for the treatment of a silicate mineral, said process comprising: preparing a first composition comprising an alkali metal magnesium orthosilicate and optionally either (i) magnesium oxide or (ii) an alkali metal silicate, by reaction, at a temperature from 600° C. to 1000° 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 R contacting the first composition with water to produce a second composition comprising an amorphous magnesium silicate hydrate (M-S—H).