Whitlockite Manufacturing via Hydrothermal Parameter Control
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Solution Overview
Problem
Conventional methods for manufacturing whitlockite are complex, costly, and generate byproducts, making it difficult to produce highly pure nano-sized whitlockite for various applications, particularly in biomedical fields where calcium phosphate compounds are used.
Innovation Solution
A method involving the addition of a calcium ion supplying material and a cation supplying material to water, followed by the addition of phosphoric acid, aging the solution, and drying to form whitlockite powder, which allows for the suppression of byproduct formation and mass production of nano-sized whitlockite with high purity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional methods are used to manufacture whitlockite, then whitlockite can be produced, but the manufacturing process becomes complicated and costs increase
Solution Approach 1:
The patent changes the chemical parameters of the reaction system by using specific molar ratios of calcium to phosphorus (Ca/P ratio), controlling the concentration of cations, and adjusting pH levels to selectively form whitlockite while suppressing byproduct formation. This allows high purity whitlockite to be produced through a simplified single-step hydrothermal process rather than multiple processing steps.
2Manufacturing precision
If conventional methods are used to manufacture whitlockite, then whitlockite can be produced, but manufacturing costs increase
Solution Approach 1:
The patent optimizes reaction parameters including temperature (100-200°C), pressure, and molar ratios to achieve high purity whitlockite in a single hydrothermal step, eliminating the need for multiple processing steps and reducing manufacturing costs.
Solution Approach 2:
The patent extracts or eliminates the need for complex multi-step processes by implementing a direct single-step hydrothermal synthesis method that produces high purity whitlockite without requiring subsequent purification or processing steps.
3Manufacturing precision
If conventional methods are used to manufacture whitlockite, then whitlockite can be produced, but byproducts such as HAP are generated
Solution Approach 1:
The patent carefully controls the Ca/P molar ratio and cation concentration parameters to shift the reaction pathway toward selective whitlockite formation while suppressing the formation of byproducts like hydroxyapatite. This is achieved by maintaining specific chemical conditions during the hydrothermal process.
Solution Approach 2:
The patent applies preliminary anti-action by pre-adjusting the reaction parameters (Ca/P ratio, cation concentration, pH) before the reaction occurs to prevent byproduct formation from the beginning, rather than dealing with byproducts after they are formed.
4Manufacturing precision
If nano-sized whitlockite is produced using conventional techniques, then some whitlockite can be obtained, but mass production is limited
Solution Approach 1:
The patent produces nano-sized whitlockite particles with controlled size and morphology through the hydrothermal process, creating uniform nanoscale structures that can be mass-produced.
Solution Approach 2:
The patent controls particle size and enables mass production by optimizing hydrothermal reaction parameters including temperature, pressure, reaction time, and precursor concentrations, allowing scalable production of nano-sized whitlockite.
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 method simplifies the manufacturing process, reduces costs, and enables the production of highly pure nano-sized whitlockite, which can be applied in fields where hydroxyapatite and beta-tricalcium phosphate are used, such as in biomedical applications.
Implementation Method 1
adding, to water, a calcium ion supplying material and a cation supplying material containing a cation (X) other than the calcium ion to prepare a cation aqueous solution
Implementation Method 2
adding a phosphoric acid supplying material to the cation aqueous solution, and aging the cation aqueous solution including the phosphoric acid
Data Source
AI summary
This invention relates to whitlockite and a method for manufacturing the same. The method includes adding, to water, a calcium ion supplying material and a cation supplying material containing a cation (X) other than the calcium ion to prepare a cation aqueous solution, adding a phosphoric acid supplying material to the cation aqueous solution, and aging the cation aqueous solution including the phosphoric acid supplying material. As a result, whitlockite having high purity and high crystallinity can be mass produced using a simple process.