Liquid-liquid extraction with particulate polymeric adsorbent

Details Liquid-liquid extraction with particulate polymeric adsorbent Liquid-liquid extraction with particulate polymeric adsorbent

1989-12-21

1992-05-05

Naff, David M.

Chemistry: molecular biology and microbiology

Enzyme , proenzyme; compositions thereof; process for...

210634, 210638, 530363, 435206, 435208, C12N 900, B01D 1104, B01D 1504

Patent

active

051107333

ABSTRACT:
The extraction or purification of biomaterials and other products by liquid-liquid extraction in an aqueous system is enhanced by introducing a particulate polymeric adsorbent into the extraction system and agitating the system, whereupon the adsorbent reversibly binds the product or material to be separated from the product, to form a complex, and the complex preferentially partitions into one of the liquid phases. The complex is then separated, and the product recovered from the complex or the remaining liquid. Ion exchange resins comprising beads or ground particles, of 0.01-10 micrometer average diameter, are representative adsorbents.

REFERENCES:
patent: 4690892 (1987-09-01), Ananthapadmanabhan et al.
patent: 4743550 (1988-05-01), Ananthapadmanabhan et al.

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