Continuous Silver Salt PUFA Extraction Process
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Solution Overview
Problem
The existing methods for producing polyunsaturated fatty acids (PUFAs) are inefficient and costly due to the need for large-scale facilities, accelerated deterioration of silver salt solutions, and high costs associated with regenerating silver, which increases the overall production costs.
Innovation Solution
A method involving the continuous supply and collection of an aqueous silver salt solution into a reaction vessel, where it contacts a raw material solution containing an alkyl ester of PUFA, allowing for the formation of a PUFA-silver complex, which is then extracted, reducing the amount of silver salt solution required and preventing deterioration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a large amount of aqueous silver salt solution is used and stirred to increase contact with PUFA-containing raw material, then the production of PUFA-silver complex is promoted, but the facility scale becomes large and the silver salt solution deteriorates faster
Solution Approach 1:
The patent implements continuous circulation of the aqueous silver salt solution through the reaction vessel, replacing batch processing with continuous flow. This allows the silver salt solution to continuously contact the PUFA-containing raw material without requiring large facility scale, while maintaining high production efficiency and reducing deterioration through minimized exposure to oxygen and light
Solution Approach 2:
The patent introduces nitrogen gas as an intermediary to create an inert atmosphere in the reaction vessel. This nitrogen atmosphere prevents oxidation of the silver salt solution by excluding oxygen, thereby maintaining solution stability and reliability while allowing continuous efficient production
2Loss of substance
If the aqueous silver salt solution is collected and regenerated after each extraction, then the silver salt solution can be re-used, but the production cost increases due to regeneration and re-processing costs
Solution Approach 1:
The continuous circulation system allows the silver salt solution to be reused multiple times without interruption. The solution flows continuously through the reaction vessel, extracting PUFA repeatedly, and is only regenerated when its capacity is exhausted, significantly reducing regeneration frequency and cost compared to batch processing
Solution Approach 2:
The patent monitors and utilizes changes in solution parameters (such as color change indicating silver ion consumption) to determine optimal regeneration timing. This allows the solution to be used to its full capacity before regeneration, maximizing its utility and minimizing regeneration costs
3Productivity
If the aqueous silver salt solution contacts oxygen multiple times during batch processing, then the extraction can be completed, but the deterioration of the silver salt solution is accelerated
Solution Approach 1:
The patent fills the reaction vessel with nitrogen gas to create an inert atmosphere that excludes oxygen. The aqueous silver salt solution circulates continuously within this oxygen-free environment, preventing oxidation and deterioration while maintaining extraction efficiency. The nitrogen atmosphere is maintained throughout the continuous processing operation
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 method enhances the efficiency and reduces the cost of PUFA production by minimizing the amount of silver salt solution needed and preventing oxidation, allowing for repeated use of the silver salt solution, thus reducing facility size and operational costs.
Implementation Method 1
produce a complex of the PUFA and silver
Data Source
AI summary
Provided is a method for producing a polyunsaturated fatty acid while preventing deterioration of a silver salt solution. A method for producing a composition comprising a polyunsaturated fatty acid, comprising: supplying an aqueous solution comprising a silver salt into a reaction vessel to contact the aqueous solution with a raw material solution comprising an alkyl ester of the polyunsaturated fatty acid; and collecting the aqueous solution comprising the silver salt which has been contacted with the raw material solution from the reaction vessel, wherein the supply of the aqueous solution comprising the silver salt into the reaction vessel and the collection of the aqueous solution comprising the silver salt from the reaction vessel are carried out concurrently with each other.