Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1992-08-10
1993-03-23
Silverman, Stanley S.
Liquid purification or separation
Processes
Ion exchange or selective sorption
210673, 210675, 210670, B01D 1504
Patent
active
051961229
ABSTRACT:
A method for regenerating exhausted anion and cation exchange resins for service in an associated mixed bed demineralizer. The method utilizes a portion of the exhausted anion and cation resins to form buffer zones which reduce cross-contamination between the anion and cation resins during regeneration. Alternatively, a relatively inert material having a specific density intermediate to that of the anion and cation resins can be used to form the buffer zones. The materials which form the buffer zones remain in the regeneration system and are not returned to the service vessels with the regenerated resin. The method includes an improved technique for terminating the transfer of cation resin from a separation vessel.
REFERENCES:
patent: 2666741 (1954-01-01), McMullen
patent: 3382169 (1968-05-01), Thompson
patent: 3385787 (1968-05-01), Crits et al.
patent: 3414508 (1968-12-01), Applebaum et al.
patent: 3429807 (1969-02-01), Burgess
patent: 3537989 (1970-11-01), Crits
patent: 3582504 (1971-06-01), Salem et al.
patent: 3583908 (1971-06-01), Crits
patent: 3617558 (1971-11-01), Jones
patent: 3634229 (1972-01-01), Stanley
patent: 3719591 (1973-03-01), Crits
patent: 3826761 (1974-07-01), Short
patent: 4120786 (1978-10-01), Peterson et al.
patent: 4191644 (1980-03-01), Lambo et al.
patent: 4264439 (1981-04-01), Lefevre et al.
patent: 4298696 (1981-11-01), Emmett
patent: 4369114 (1983-01-01), Siegers
patent: 4388417 (1983-06-01), Down et al.
patent: 4400278 (1983-08-01), Martinola
patent: 4519917 (1985-05-01), Martinola
Nessler Cynthia L.
Silverman Stanley S.
The Graver Company
LandOfFree
External regeneration system for mixed bed ion exchangers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with External regeneration system for mixed bed ion exchangers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and External regeneration system for mixed bed ion exchangers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1349718