Microparticle Crystallite Diameter Control via Rotating Fluid Mixing
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Solution Overview
Problem
Current methods for producing microparticles struggle to control crystallite diameter effectively, leading to inefficiencies in achieving desired physical properties and increasing energy costs due to the need for specialized equipment and lengthy processes.
Innovation Solution
A method involving the mixing of raw material and separating fluids between rotating processing surfaces, where specific conditions such as substance type, concentration, pH, introduction temperature, and velocity are controlled to achieve controlled crystallite diameters, allowing for the production of microparticles with precise crystallite dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If solvothermal method or hydrothermal treatment is used to control crystallite diameter, then crystallite diameter can be controlled, but apparatus complexity and energy cost increase
Solution Approach 1:
The invention controls crystallite diameter by changing parameters of the separating fluid (pH, concentration, composition) rather than changing the fundamental process method. This allows precise control of crystallite diameter while using simple mixing apparatus, avoiding the need for complex solvothermal or hydrothermal equipment.
Solution Approach 2:
The invention replaces complex thermal and pressure-based systems (solvothermal, hydrothermal) with a simple mechanical mixing system where fluids are mixed between rotating processing surfaces. This substitution achieves crystallite diameter control through fluid dynamics and chemical parameters rather than extreme thermal/pressure conditions.
2Manufacturing precision
If solvothermal method or hydrothermal treatment is used to control crystallite diameter, then crystallite diameter can be controlled, but energy cost increases
Solution Approach 1:
The invention achieves crystallite diameter control by adjusting parameters of the separating fluid (pH, concentration, composition) during simple mixing, eliminating the need for energy-intensive heating and pressurization required by solvothermal and hydrothermal methods.
Solution Approach 2:
The invention replaces energy-intensive thermal and pressure systems with a low-energy mechanical mixing process, where the kinetic energy of rotating surfaces is sufficient to achieve the desired crystallite diameter control through fluid dynamics and chemical reactions.
3Manufacturing precision
If solvothermal method or hydrothermal treatment is used to control crystallite diameter, then crystallite diameter can be controlled, but processing time increases
Solution Approach 1:
The invention controls crystallite diameter through immediate adjustment of separating fluid parameters during mixing, achieving rapid control without the lengthy heating and holding periods required by solvothermal and hydrothermal methods.
Solution Approach 2:
The invention skips the time-consuming heating and pressurization stages of solvothermal and hydrothermal methods by using a direct mixing approach where crystallite diameter is controlled in real-time through fluid parameter adjustment, significantly reducing processing time.
4Productivity
If conventional methods are used to produce microparticles, then production can be achieved, but crystallite diameter cannot be precisely controlled
Solution Approach 1:
The invention introduces separating fluid parameters (pH, concentration, composition) as control variables that directly influence crystallite diameter during the mixing process, enabling precise control to be superimposed on continuous production without sacrificing productivity.
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
This approach enables the simple and continuous production of microparticles with controlled crystallite diameters, reducing production costs and energy consumption while allowing for selective variation of crystallite diameters, thereby providing microparticles with intended properties.
Implementation Method 1
mixing by using an apparatus in which a plurality of fluids to be processed are mixed in a thin film fluid formed between processing surfaces of processing members arranged so as to be able to approach to and separate from each other, at least any one of which rotates
Data Source
AI summary
At least two types of fluids to be processed are mixed in a thin film fluid formed between at least two processing surfaces which are approachably and separably disposed facing each other. At least one processing surface rotates relative to the other, and a substance to be separated giving a controlled crystallite diameter is caused to separate. Specific conditions related to a fluid to be processed are varied to control the crystallite diameter of the substance to be separated. The specific conditions are the type of substance to be separated; the concentration of the substance to be separated included in the raw material fluid and/or substance included in the separating fluid; the pH of the raw material fluid and/or separating material fluid; the introduction temperature of the raw material fluid and/or separating fluid; and the introduction velocity of the raw material fluid and/or separating fluid.