Cementitious reagents, methods of manufacturing and uses thereof
AssigneeTerra Co2 Technology Holdings, Inc.
InventorDonald Lake
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Abstract
Described are cementitious reagent materials produced from globally abundant inorganic feedstocks. Also described are methods for the manufacture of such cementitious reagent materials and forming the reagent materials as microspheroidal glassy particles. Also described are apparatuses, systems and methods for the thermochemical production of glassy cementitious reagents with spheroidal morphology. The apparatuses, systems and methods makes use of an in-flight melting/quenching technology such that solid particles are flown in suspension, melted in suspension, and then quenched in suspension. The cementitious reagents can be used in concrete to substantially reduce the CO2 emission associated with cement production.
Claims8
A method for producing a cementitious reagent from aluminosilicate materials, comprising the steps of:
- providing a solid aluminosilicate material;
- milling the solid aluminosilicate material to have a particle size distribution with D[3,2] of less than 20 μm;
- melting, by in-flight melting, of the aluminosilicate material in a kiln;
- and
- quenching, by in-flight quenching, of the aluminosilicate material to produce solid microspheroidal glassy particles.
Dependencies are inferred from the claim text.