Continuous Flow Reactor Deformation Portion Mixing
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Solution Overview
Problem
The production of modified polymerization initiators is hindered by non-uniform mixing of reactants and excessive side reactions, leading to reduced conversion rates and productivity issues, particularly in the preparation of rubber materials for tires where high conversion ratios and uniform mixing ratios are crucial for achieving desired properties like low hysteresis loss and wet skid resistance.
Innovation Solution
A method involving continuous introduction of a first fluid with a modified functional group-containing compound and a second fluid with a polymerization-initiating functional group-containing compound into a reactor, where the flow rates are maintained constant, and the flow rate of the first fluid is increased through a deformation portion to enhance mixing power, ensuring a uniform mixing ratio and minimizing side reactions, thereby achieving a high conversion rate of the modified polymerization initiator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional batch mixing method is used to prepare modified polymerization initiator, then equipment complexity is low, but mixing uniformity is poor leading to excessive side reactions and low conversion rate
Solution Approach 1:
The patent replaces conventional mechanical batch mixing with a continuous flow mixing system where reactants are delivered through fluid inlets and mixed in a deformation portion of the reactor. This substitution of mechanical stirring with flow-driven mixing achieves superior mixing uniformity while maintaining relatively simple equipment structure.
Solution Approach 2:
The patent implements continuous mixing and reaction of the modified polymerization initiator components, replacing batch processing with continuous flow. This continuous action ensures uniform mixing ratios throughout the reaction, minimizing side reactions and achieving high conversion rates while keeping equipment complexity low.
2Productivity
If conventional batch reaction method is used, then process simplicity is high, but productivity is low due to long reaction times and low conversion rates
Solution Approach 1:
The patent employs continuous flow reaction methodology where reactants are continuously introduced through fluid inlets, mixed in the deformation portion, and reacted in the mixing portion. This continuous process eliminates idle times between batches, significantly improving productivity while maintaining a relatively simple reactor structure consisting of basic flow paths and mixing zones.
Solution Approach 2:
The patent introduces a deformation portion in the reactor that dynamically enhances mixing by creating flow patterns and turbulence as reactants pass through. This dynamic flow structure improves reaction efficiency and conversion rate without requiring complex mechanical stirring mechanisms, thus maintaining process simplicity while boosting productivity.
3Manufacturing precision
If mixing power is insufficient in initiator preparation, then equipment simplicity is maintained, but side reactions increase and conversion rate decreases
Solution Approach 1:
The patent utilizes a deformation portion with curved or tapered geometry in the reactor design. This curved structure creates flow convergence and enhances mixing power through fluid dynamics alone, eliminating the need for complex mechanical mixing systems while achieving high conversion rates by ensuring thorough mixing of reactants.
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 allows for efficient preparation of modified polymerization initiators with high conversion rates, minimizing unmodified initiator remnants and oligomer generation, and improving the mixing ratio, which is essential for producing rubber materials with optimal properties for tire applications.
Implementation Method 1
a deformation portion for increasing the flow rate of the first fluid; the deformation portion exhibits a shape in which the inner diameter, outer diameter or cross-sectional area of the reactor through which the first fluids flows before the time when the first fluid and the second fluid are mixed is reduced or gradually decreased
Data Source
Figure 1
AI summary
The present invention relates to a method for producing a modified polymerization initiator, and more particularly, to a method for preparing a modified polymerization initiator, wherein the method includes the steps of: (S1) introducing a first fluid through an first fluid inlet and a second fluid through a second fluid inlet into a reactor having the first fluid inlet including a first functional group-containing compound and the second fluid inlet including a second functional group-containing compound, and reacting the first functional group-containing compound with the second functional group-containing compound, and (S2) obtaining the modified polymerization initiator prepared by the reaction of the step (S1) through an outlet of the reactor, wherein the step (S1) and step (S2) are continuously performed, wherein in the step (S1), the flow amount of the first fluid and the second fluid is maintained constant at the time when the first fluid and the second fluid are mixed, and the flow rate of the first fluid is increased. Also, the present invention provides an apparatus for producing a modified polymerization initiator for performing the same.