Treatment of lower glycol-containing operative fluids

Details Treatment of lower glycol-containing operative fluids Treatment of lower glycol-containing operative fluids

1991-12-18

1993-03-16

Sever, Frank

Liquid purification or separation

Processes

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

21050041, B01D 6100

Patent

active

051941597

ABSTRACT:
Operative fluids containing lower glycol are contacted with semi-permeable membranes under reverse osmosis conditions to permeate lower glycol to provide a reclaimed lower glycol product. Exemplary operative fluids include antifreeze solutions, heat transfer fluids, deicers, quenchants, hydraulic fluids, lubricants, solvents and absorbents.

REFERENCES:
patent: 3467604 (1969-09-01), Michaels
patent: 3875096 (1975-04-01), Graefe
patent: 3904656 (1975-09-01), Broz
patent: 4225394 (1980-09-01), Cox et al.
patent: 4277344 (1981-07-01), Cadotte
patent: 4427507 (1984-01-01), van Aken et al.
patent: 4737325 (1988-04-01), Kamiyama et al.
patent: 4830712 (1989-05-01), Crandall et al.
patent: 4830885 (1989-05-01), Tran et al.
patent: 4851120 (1989-07-01), Reineke et al.
Chemical Abstracts, vol. III-(20); 177607 q, summarixing Shub, et al., "Utilization of Used Antifreeze", Khim. Tekhnol. Topl. Masel (8) 16-18 1989.
Chemical Abstracts, vol. 101 (4); 25944 c, summarizing Hungarian patent publication 29752, Feb. 28, 1984.
Chemical Abstracts, vol. 104 (22); 189692s, summarizing Wehner, et al., "Process of Residues from Solvent Regeneration for Selective Separation Processes", East German Patent No. 226557, Aug. 28, 1985.
Chemical Abstracts, vol. 104 (20); 170054 d, reporting on Japanese patent application Kokai 60.216884, Oct. 30, 1985.

Affiliated with

Also associated with

Rating

Treatment of lower glycol-containing operative fluids does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Treatment of lower glycol-containing operative fluids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Treatment of lower glycol-containing operative fluids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-349642