Ultrafiltration polyamide membrane and its use for recovery of d

Details Ultrafiltration polyamide membrane and its use for recovery of d Ultrafiltration polyamide membrane and its use for recovery of d

1989-02-16

1990-03-13

Foelak, Morton

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

21050039, 264 41, 264216, 26433112, B01D 1300

Patent

active

049081349

ABSTRACT:
Polyimide ultrafiltration membranes made using a single solvent and containing a pore forming agent have been produced and have been found to be useful for recovering dewaxing aid used in dewaxing process.

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"High-Temperature Ultrafiltration Membrane", Sarbolouki, JPL Invention Report 30-4918/NPO-15431, 1982.
"New Polyimide Ultrafiltration Membrane For Organic Use", Iwama, et al, Journal of Membrane Science 11, (1982) 297-309.

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