Amide Compound Production with pH Control for Low-Foam Solutions
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Solution Overview
Problem
The production of amide compounds using biocatalysts faces challenges due to foaming issues in the aqueous solutions, which complicates handling, storage, and reduces the yield of amide compound-based polymers.
Innovation Solution
Increasing the pH of the reaction solution during the hydration reaction, particularly in the latter half, suppresses foaming and improves handling of the amide compound aqueous solution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a biocatalyst having nitrile hydratase activity is used to produce an amide compound, then the reaction proceeds under mild conditions with high purity, but the obtained aqueous amide compound solution foams due to protein impurities
Solution Approach 1:
The patent applies parameter changes by adjusting the pH of the reaction solution during the hydration reaction. Specifically, the pH is increased in the middle of the reaction to suppress foaming caused by protein impurities from the biocatalyst, while maintaining the high purity advantage of biocatalytic methods
2Productivity
If the amide compound aqueous solution is used for polymerization, then the amide compound-based polymer can be obtained, but the solution overflows from the polymerization kettle due to foaming, reducing the yield
Solution Approach 1:
The patent uses parameter changes by controlling the pH of the reaction solution during the hydration reaction. By increasing the pH in the middle of the reaction, the foaming tendency of the aqueous solution is suppressed, preventing overflow during subsequent polymerization and maintaining high yield of the amide compound-based polymer
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 effectively reduces foaming, facilitating the handling of the reaction solution and maintaining high yield of amide compounds.
Implementation Method 1
performing a hydration reaction on a nitrile compound in the presence of a biocatalyst having nitrile hydratase activity
Data Source
AI summary
A method for producing an amide compound from a nitrile compound using a biocatalyst by producing an amide compound aqueous solution having low foamability.