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US 6,271,159 B1Granted
Method of producing synthetic silicates and use thereof in glass production
AssigneeMinerals Technologies Inc.
InventorsGeorge Henry Fairchild, John Albert Hockman
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Abstract
A method is disclosed of producing a synthetic silicate. The method is advantageous in providing material useful in glass making. Such method involves the reaction of calcium oxides and magnesium oxides, water and sodium silicates. The glass formation is performed at a lower temperature than usual and performed with a lower amount of volatile gas release. Less cristobalite formation in the glass occurs. The synthetic silicate produced can be a cylindrical pellet.
Claims2
A pellet produced by a process comprising the following steps:
- (1) producing a mixture by admixing (a) silicon dioxide, (b) calcium oxide and/or magnesium oxide, and water;
- (2) forming a pellet from such mixture, said pellet comprising from about 3% to about 18% magnesium oxide, from about 6% to about 34% calcium hydroxide, from about 0% to about 27% calcium carbonate, from about 0% to about 22% magnesium carbonate, and from about 48% to about 60% silica sand;
- and
- (3) drying the pellet to drive off water to attain structural strength sufficient for handling and/or control degradation in a chemical reaction.
1 more element
Dependencies are inferred from the claim text.