Glass microspheres made from a redox active glass, and methods of producing glass microspheres
AssigneesHamid Hojaji, Laura Gabriela Kocs
InventorsHAMID HOJAJI, LAURA GABRIELA KOCS
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Abstract
A method for manufacturing a plurality of glass microspheres comprises: melting a batch into a first glass melt in a melter system, processing the first glass melt into a second glass, pulverizing the second glass into a plurality of glass fragments, thermally processing the plurality of glass fragments into a plurality of glass microspheres, providing at least one of a plurality of redox reactions and a plurality of events in at least one of the first glass melt and a melt of the second glass, and the plurality of redox reactions and the plurality of events are induced by a plurality of redox active group (RAG) components.
Claims24
1-6. (canceled)
A method of producing microspheres, comprising:
- melting a batch into a first glass melt;
- processing the first glass melt into a second glass;
- providing at least one of a plurality of redox reactions and a plurality of events in the first glass melt, wherein said at least one of said plurality of redox reactions and said plurality of events are induced by adding a plurality of redox active group (RAG) components to the batch and/or the first glass melt;
- pulverizing the second glass into a plurality of glass fragments comprising (i) sulfide and/or carbon, and (ii) sulfate, and
- thermally processing the plurality of glass fragments into microspheres, wherein the thermally processing comprises heating to cause reaction of (i) the sulfide and/or carbon, with (ii) the sulfate, to form SO2 gas.
(canceled)
A method of producing microspheres, comprising:
- melting a batch into a first glass melt;
- processing the first glass melt into a second glass;
- providing at least one of a plurality of redox reactions and a plurality of events in the first glass melt, wherein said at least one of said plurality of redox reactions and said plurality of events are induced by adding a plurality of redox active group (RAG) components to the batch and/or the first glass melt;
- pulverizing the second glass into a plurality of glass fragments, and
- thermally processing the plurality of glass fragments into microspheres;
- wherein said first glass melt and second glass comprise sodium oxide, and
- wherein a concentration of said sodium oxide is less than 4 wt % based on a mass of either said first glass melt or said second glass.
(canceled)
A method of producing microspheres, comprising:
- preparing glass fragments comprising (i) sulfide and/or carbon, and (ii) sulfate;
- and
- thermally processing the glass fragments into glass microspheres;
- wherein the thermally processing comprises heating to cause reaction of (i) the sulfide and/or carbon, with (ii) the sulfate, to form SO2 gas.
Dependencies are inferred from the claim text.