Method for producing ammonia
AssigneeSpawnt Private S.à.r.l.
InventorsNorbert Auner, Banibrata Pandey
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Abstract
A method for producing ammonia includes reacting SiO2 and/or Al2O3, or material containing SiO2 and/or Al2O3, with addition of a carbon source, with gaseous nitrogen at elevated temperature to give silicon nitride (Si3N4) and/or aluminum nitride (AlN), or material containing silicon nitride and/or aluminum nitride, and reacting resultant silicon nitride and/or aluminum nitride, or material containing silicon nitride and/or aluminum nitride, in the presence of a basic alkali metal compound and/or alkaline earth metal compound, with water at elevated temperature to give ammonia and alkali metal silicates and/or alkaline earth metal silicates.
Claims20
A method for producing ammonia comprising:
- reacting SiO2 and/or Al2O3, or material containing SiO2 and/or Al2O3, with addition of a carbon source, with gaseous nitrogen at elevated temperature to produce silicon nitride (Si3N4) and/or aluminum nitride (AlN), or material containing silicon nitride and/or aluminum nitride, and
- reacting resultant silicon nitride and/or aluminum nitride, or material containing silicon nitride and/or aluminum nitride, in the presence of a basic alkali metal compound and/or alkaline earth metal compound, with water at elevated temperature to produce ammonia and alkali metal silicates and/or alkaline earth metal silicates.
Dependencies are inferred from the claim text.