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Title: Method for preparing membranes with adjustable separation performance

Methods for adjustable separation of solutes and solvents involve the combination of the use of a maximally swollen membrane and subsequent vacuum depressurization exerted on the permeate side of that membrane. By adjusting the extent of depressurization it is possible to separate solvent from solutes and solutes from each other. Improved control of separation parameters as well as improved flux rates characterize the present invention. 2 figs.
Inventors:
; ;
Issue Date:
OSTI Identifier:
6603275
Assignee:
EG and G Idaho, Inc., Idaho Falls, ID (United States) PTO; EDB-95-036965
Patent Number(s):
US 5385672; A
Application Number:
PPN: US 8-135223
Contract Number:
AC07-76ID01570
Resource Relation:
Patent File Date: 13 Oct 1993
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; MEMBRANES; FABRICATION; PRESSURE CONTROL; SEPARATION PROCESSES; PROCESS CONTROL; MEMBRANE TRANSPORT; CONTROL 400105* -- Separation Procedures; 320303 -- Energy Conservation, Consumption, & Utilization-- Industrial & Agricultural Processes-- Equipment & Processes