In the production of organic acids such as citric acid and lactic acid, the traditional calcium salt method is lengthy, costly, and heavily polluting. As an advanced alternative, solvent extraction method offers significant advantages, but its efficiency depends directly on the performance of the extraction equipment. Traditional equipment such as mixer-settlers have clear drawbacks — low mass transfer efficiency, tendency to emulsify, incomplete phase separation, long residence time leading to degradation risks, as well as clogging and high maintenance costs. Tiei Extraction's centrifugal extraction technology, leveraging its deep understanding of extraction mechanisms, provides an efficient solution for the industry.
Extraction Mechanism: How to achieve precise separation achieved?
Extracting organic acids from fermentation broth is a precise process based on partitioning and reaction:
pH regulation and partitioning: By adjusting the pH of the fermentation broth, organic acids are converted into their free molecular form, which can then be selectively dissolved by the organic extractant.
Reactive extraction enhancement: By introducing complexing extractants (such as tertiary amines), reversible complexes are formed with organic acid molecules, significantly improving extraction efficiency and selectivity.
Tiei Centrifugal Extraction Technology
The centrifugal extraction technology mainly consists of two working stages:the mixing and mass transfer process and the phase separation process.
Mixing and Mass Transfer
The light and heavy phases enter the mixing zone separately through their respective inlets at controlled flow rates. Within this zone, the two phases are rapidly mixed and dispersed, allowing thorough mass transfer to occur—thus completing the mixing and mass transfer process.
Phase Separation
After the mixed liquid enters the drum, under the action of centrifugal force, the heavy phase liquid with a higher specific gravity gradually moves away from the center of the drum and moves toward the drum wall during the upward flow; the light phase liquid with a lower specific gravity gradually moves away from the drum wall and moves toward the center. The clarified two-phase liquids are respectively led out of the machine through the guide pipes, completing the two-phase separation process.
CWL-M Series Centrifugal Extractor
Efficient Mixing: High-speed shearing generates micron-sized droplets, greatly increasing the mass transfer area and enabling reactions to complete within seconds.
Powerful Separation: Thousands of times the force of gravity ensures complete phase separation, effective demulsification, and extremely low solvent carryover.
Continuous Countercurrent Operation: Multiple units connected in series achieve high recovery rates (>95%), maximizing resource utilization.
Sealed Operation: The entire system operates in a closed configuration, ensuring safety, environmental protection, and compliance with green production standards.
Core Value of Tiei Extraction’s Fermentation Broth Extraction System
Higher Profitability: Recovery rate >95%, improved product purity, and significantly reduced costs.
Superior Operation: Continuous and automated process with minimal solvent loss and reduced waste residue.
Lower Investment: Compact equipment design with a small footprint and rapid return on investment.
Greater Flexibility: A professional team provides process optimization and customized solutions.
Choosing Tiei Extraction means choosing efficiency and reliability. Let us help you maximize the value of your fermentation resources!
Email: sales@tieiextraction.com
Whatsapp: +86 19069612820
