Ortho-phosphate Binders for Solid Oxygen Generators
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Solution Overview
Problem
Conventional oxygen generators face issues with mechanical destabilization due to localized melting during decomposition and oxygen loss, leading to interrupted oxygen flow, especially in vibrating environments, and produce oxygen at high temperatures.
Innovation Solution
Incorporating specific ortho-phosphate and vanadate compounds as multifunctional components that act as both binders and catalysts, replacing conventional binders and catalysts, to prevent liquid phase formation and maintain structural integrity, ensuring continuous and stable oxygen production at lower temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional binders and catalysts are used in oxygen generators, then the decomposition reaction can proceed, but liquid phase formation occurs during decomposition causing mechanical destabilization and interrupted oxygen flow
Solution Approach 1:
The ortho-phosphate compound serves multiple functions simultaneously: it acts as a binder to maintain structural integrity, as a catalyst to promote decomposition reaction, and as a melting point elevation agent to prevent liquid phase formation. This multi-functionality resolves the contradiction by eliminating the need for separate conventional binders and catalysts that fail to prevent melting.
Solution Approach 2:
The invention changes the chemical composition parameter by using ortho-phosphate compounds with high melting points (typically above 1000°C) to replace conventional binders and catalysts. This parameter change elevates the overall melting point of the composition, preventing liquid phase formation during decomposition and maintaining mechanical stability throughout the oxygen generation process.
2Productivity
If high decomposition temperatures are used to decompose chlorates and perchlorates, then oxygen generation is achieved, but the produced oxygen is at high temperature and requires cooling
Solution Approach 1:
The invention changes the reaction temperature parameter by using ortho-phosphate compounds that enable effective decomposition at lower temperatures. The catalytic activity of ortho-phosphates allows the decomposition to proceed efficiently at temperatures that produce cooler oxygen, reducing the need for extensive cooling while maintaining high oxygen generation rates.
3Speed
If conventional catalysts are used to speed up decomposition, then reaction rate increases, but structural integrity is compromised due to melting
Solution Approach 1:
The ortho-phosphate compound provides universal functionality by simultaneously acting as a catalyst to accelerate decomposition and as a structural stabilizer to maintain integrity. Its high melting point ensures it remains solid and structurally sound during the reaction, unlike conventional catalysts that may cause or participate in liquid phase formation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The use of multifunctional phosphates and vanadates stabilizes the composition, preventing liquid phase formation and maintaining mechanical stability, allowing for continuous oxygen flow and reducing reaction heat, resulting in breathable, pure oxygen at lower temperatures.
Implementation Method 1
the use of specific ortho-phosphate and vanadate compounds as multifunctional components that act as both binders and catalysts
Implementation Method 2
the compositions produce oxygen by thermal decomposition of alkali metal chlorates or perchlorates or alkaline earth metal chlorates or perchlorates
Implementation Method 3
preventing liquid phase formation and maintaining structural integrity
Data Source
AI summary
The present invention relates to a composition for generating oxygen, comprising at least one oxygen source selected from chlorates and perchlorates, to an oxygen generator comprising such a composition, and a method for generating oxygen by decomposing such a composition. The present invention further relates to the use of transition metal ortho-phosphate compounds ortho-vanadate compounds and mixed ortho-phosphate-vanadate compounds as multifunctional components in the oxygen generating compositions.