Novel Continuous Solvent Extraction Without Moving Parts

Solvent extraction is an efficient method for selectively removing, purifying and concentrating certain elements or compounds from a solution because the solutes can be selectively removed and they can be concentrated from a very dilute stream.
Two types of solvent extraction systems are commonly used: the mixer settler and the pulse or spray column.
*The mixer-settler units can be operated with a very high degree of contact between the two phases, but the equipment and operations are quite complex. The mixer-settlers also occupy considerable floor space and are difficult to clean and maintain.
*The pulse or spray columns are simple and contain no moving parts, but the throughput rate is low and the columns suffer from severe backmixing, the latter of which greatly reduces the efficiency.
This invention overcomes the shortcomings experienced in both of the above methods.

This invention is useful in any solvent extraction process, especially for the treatment of industrial waste liquids.

Stage of Development
A patent (5,641,462) has been issued from the United States Patent and Trademark Office.
This technology is available for developmental research support/licensing under either exclusive or non-exclusive terms.

Additional Info

Inventor(s): Dusita Doungdeethaveeratana, Hong Yong Sohn

Type of Offer: Licensing

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