A platform for research: civil engineering, architecture and urbanism
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A method for producing an alkali metal aluminosilicate is described. The method comprises: reacting a lithium-bearing mineral with an alkali metal carbonate in an aqueous medium to form alkali metal aluminosilicate and lithium carbonate, wherein said lithium-bearing mineral is selected from at least one of spodumene, lepidolite, petalite, eucryptite and hectorite, and wherein said alkali metal carbonate is selected from a carbonate of sodium, potassium and/or caesium; separating a solid product comprising at least a portion of the alkali metal aluminosilicate from the aqueous medium. The separated solid product may be used in a binder, such as a cementitious or geopolymer binder. The lithium carbonate may be converted to lithium hydroxide by addition of alkali earth metal hydroxide to the solid product prior to separation. The aluminosilicate may be analcime (sodium aluminosilicate). The alkali metal carbonate may be sodium carbonate.
A method for producing an alkali metal aluminosilicate is described. The method comprises: reacting a lithium-bearing mineral with an alkali metal carbonate in an aqueous medium to form alkali metal aluminosilicate and lithium carbonate, wherein said lithium-bearing mineral is selected from at least one of spodumene, lepidolite, petalite, eucryptite and hectorite, and wherein said alkali metal carbonate is selected from a carbonate of sodium, potassium and/or caesium; separating a solid product comprising at least a portion of the alkali metal aluminosilicate from the aqueous medium. The separated solid product may be used in a binder, such as a cementitious or geopolymer binder. The lithium carbonate may be converted to lithium hydroxide by addition of alkali earth metal hydroxide to the solid product prior to separation. The aluminosilicate may be analcime (sodium aluminosilicate). The alkali metal carbonate may be sodium carbonate.
Method for recovering lithium hydroxide
SEAN SARGENT (author)
2024-06-19
Patent
Electronic Resource
English
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