Modified phyllosilicates for use in solid chemical oxygen generating compositions, oxygen generator, and method of generating oxygen
AssigneeDiehl Aviation Gilching GmbH
InventorsChristoph Kallfass, Arthur Hejczyk
Life of this patent
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Abstract
A composition for generating oxygen includes at least one oxygen source selected from chlorates and perchlorates. An oxygen generating device includes such a composition. Oxygen is generated by decomposing such a composition. In the context, phyllosilicate compounds are used as multifunctional components in the oxygen generating compositions.
Claims15
A composition for generating oxygen in an oxygen candle, the composition being configured to maintain a size and a shape during a reaction process, the composition comprising:
- at least one oxygen source selected from the group consisting of alkali metal chlorates, alkali metal perchlorates, alkaline earth metal chlorates, alkaline earth metal perchlorates, and mixtures thereof;
- and
- at least one phyllosilicate compound having at least one transition metal ion intercalated between phyllosilicate sheets, the phyllosilicate compound being formed by extracting magnesium therefrom and replacing the magnesium with the transition metal ion at least at 98% of the sites becoming vacancies due to the extraction of the magnesium.
A method of generating oxygen in an oxygen candle, the method comprising:
- providing a phyllosilicate compound having at least one transition metal ion intercalated between phyllosilicate sheets, the phyllosilicate compound being formed by extracting magnesium therefrom and replacing the magnesium with the transition metal ion at at least 98% of sites becoming vacancies due to the extraction of the magnesium, the phyllosilicate compound forming a multifunctional component in a composition for generating oxygen, the composition including at least one oxygen source selected from the group consisting of alkali metal chlorates, alkali metal perchlorates, alkaline earth metal chlorates, alkaline earth metal perchlorates, and mixtures thereof;
- and
- using the phyllosilicate compound as a multifunctional component being multifunctional to act as a binder and as a catalyst catalyzing the decomposition of the oxygen source.
A method for generating oxygen, the method comprising:
- providing a composition including at least one oxygen source selected from the group consisting of alkali metal chlorates, alkali metal perchlorates, alkaline earth metal chlorates, alkaline earth metal perchlorates, and mixtures thereof;
- decomposing the composition in the container while maintaining a size and a shape thereof;
- and
- avoiding melting or localized melting of the composition during the decomposition by including into the composition at least one phyllosilicate compound having at least one transition metal ion intercalated between phyllosilicate sheets, the phyllosilicate compound being formed by extracting magnesium therefrom and replacing the magnesium with the transition metal ion at at least 98% of sites becoming vacancies due to the extraction of the magnesium.
Dependencies are inferred from the claim text.