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US 2022/0348493 A1Published application
Method for removing disturbing metals from glass
OwnerOliver PIESTERTinventor
Life of this patent
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Abstract
A method for producing glass by removing coloring ions through reduction is described, as are products obtained by this method.
Claims15
A method for producing a glass composition, comprising the steps of:
- i) preparing a molten raw material glass composition,
- ii) adding one or more reducing agents to the raw material glass composition before, during or after melting in step i), and
- iii) optionally removing precipitates formed after steps i) and ii) from the molten glass composition.
A method of reducing the concentration of one or more ions selected from iron ions, chromium ions, manganese ions, copper ions, nickel ions, cobalt ions and uranium ions in a molten glass composition, the method comprising using one or more reducing agents.
A method of increasing transparency and/or reducing colouring of a glass composition, the method comprising using one or more reducing agents.
Dependencies are inferred from the claim text.