Taylor Flow Deracemization Reactor for Rapid Enantiomer Separation
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Solution Overview
Problem
Conventional deracemization processes are inefficient and time-consuming, requiring at least 150 hours to achieve a 99:1 enantiomer ratio, which is not suitable for rapid production of highly efficient medicines with reduced side effects.
Innovation Solution
A method and device utilizing Taylor flow in a reactor with concentric cylinders, where the inner cylinder is rotated to create a vortex, enhancing mixing and deracemization efficiency, with optional temperature differences between the cylinders to further accelerate the process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional well-mixed batch reactor is used for deracemization, then the process is simple to operate, but the reaction time requires at least 150 hours
Solution Approach 1:
The patent applies dynamic flow patterns by switching between different flow modes (batch mode with stirring, continuous flow mode with pump) and using oscillating flow rates in semi-continuous mode. This dynamic operation allows the system to achieve superior mixing and deracemization performance much faster than conventional static batch reactors, reducing reaction time from 150+ hours to significantly shorter durations while maintaining ease of operation through automated control
Solution Approach 2:
The patent utilizes hydraulic flow through the reaction chamber, employing pumps to circulate the racemate solution through the reactor. The continuous flow of liquid through the reaction zone with controlled flow rates enables efficient mass transfer and deracemization in a fraction of the time required by conventional batch methods, while the hydraulic system remains relatively simple to operate
2Manufacturing precision
If the temperature is slowly increased and decreased in a batch reactor, then the enantiomeric excess is gradually improved, but the process takes at least 150 hours
Solution Approach 1:
The patent employs parameter changes by utilizing different flow rates, flow modes (batch, continuous, semi-continuous), and temperature variations to optimize deracemization. The system can operate with controlled flow rates ranging from slow to fast, and temperatures can be adjusted to achieve the desired enantiomeric excess much more quickly than conventional methods. The oscillating flow rates and mode switching create dynamic parameter changes that accelerate the deracemization process while maintaining high enantiomeric purity
Solution Approach 2:
The patent implements continuous operation modes where the racemate solution continuously flows through the reaction chamber, allowing the deracemization process to proceed without interruption. This continuous useful action, as opposed to intermittent batch processing, enables the system to achieve high enantiomeric excess in much shorter timeframes by maintaining constant optimization conditions throughout the process
3Device complexity
If a conventional batch reactor is used, then the equipment is simple, but the productivity is low due to long reaction time
Solution Approach 1:
The reactor device is designed with multi-functionality, capable of operating in multiple modes (batch mode with stirring, continuous flow mode with pump, semi-continuous mode with oscillating flow). This universal design allows the same equipment to achieve high productivity through continuous or semi-continuous operation while maintaining relatively simple device complexity. The system can be operated in the most efficient mode for each specific application without requiring completely different equipment
Solution Approach 2:
By introducing hydraulic flow through the reaction chamber using pumps and flow control systems, the patent achieves continuous processing capability that dramatically increases productivity compared to batch operation. The hydraulic system remains relatively simple in design while enabling continuous deracemization, thus improving productivity without proportionally increasing device complexity
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 achieves at least 50% enantiomeric excess within 24 hours and up to 99% within 12 hours, significantly reducing reaction time compared to conventional methods.
Implementation Method 1
the inner cylinder is rotated to create a vortex, enhancing mixing and deracemization efficiency
Implementation Method 2
the fluid near the inner cylinder are accelerated to direct toward the outer cylinder by centrifugal force
Implementation Method 3
when the temperature of the surfaces of the inner and outer cylinders producing such Taylor flow is different... the deracemization is further accelerated
Data Source
AI summary
The present invention relates to a method for conducting deracemization using Taylor flow and a device for conducting the same. With respect to the deracemization of a racemate, it may be efficiently conducted with improved rapidity when a racemate-containing fluid is placed under Taylor flow.