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US 12,522,531 B2Granted
Glass batch compositions comprising cullet and methods of forming glass with cullet
AssigneeSibelco Nederland N.V.
InventorsJohannes Van Limpt, Lesley Beyers
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Abstract
The present disclosure relates to glass batch compositions. The present disclosure also relates to methods of forming glass with cullet.
Claims16
A soda lime glass batch composition, comprising:
- from 1 weight % to 50 weight % a first plurality of glass cullet particles, wherein the first plurality of glass cullet particles have a maximum dimension of 5 mm or less and the glass cullet particles are organically contaminated;
- from 50 weight % to 99 weight % other components of the glass batch, wherein the other components of the glass batch comprise silica sand, soda ash, and limestone;
- and
- unavoidable impurities, wherein the unavoidable impurities are distinct from any organic contaminants present in the glass cullet particles;
- wherein the organic contamination of the first plurality of glass cullet particles:
- a. measured by loss on ignition (“LOI”) is from 0.5 weight % to 20 weight % of the first plurality of glass cullet particles;
- b. measured by chemical oxygen demand (“COD”) is from 4,000 mg O2/L to 75,000 mg O2/L;
- and,
- c. measured by combustion analysis provides a carbon content of from 0.30 weight % to 15 weight %.
6 more elements
Dependencies are inferred from the claim text.