Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By contact with solid sorbent
Patent
1988-03-29
1989-05-30
Caldarola, Glenn
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By contact with solid sorbent
208310Z, C07C 712
Patent
active
048353345
ABSTRACT:
A two stage adsorptive separation process for recovering purified 2,6 Dimethylnaphthalene ["2,6 DMN"] from a fresh feed mixture comprising 2,6 DMN and at least one isomer thereof, which process comprises a first stage, employing a first stage adsorbent and desorbent material and operating at 2,6 DMN rejective conditions, with at least a portion of the raffinate product of such stage being fed to a second stage, employing a second stage adsorbent and desorbent material and operating at 2,6 DMN extractive conditions, thereby producing a second stage extract product containing purified 2,6 DMN. The adsorbent(s) and desorbent material(s) used in the process will depend upon the embodiment of the process employed. The most preferred embodiment of the subject invention concerns the use of a distinct adsorbent in each stage and a desorbent material common to both stages.
REFERENCES:
patent: 2564532 (1951-08-01), Hirschler
patent: 2967896 (1961-01-01), Fleck et al.
patent: 3133126 (1964-05-01), Fleck et al.
patent: 3668267 (1972-06-01), Hedge
patent: 3707550 (1972-12-01), Stine et al.
patent: 3772267 (1973-11-01), Hedge
patent: 3840610 (1974-10-01), Hedge
patent: 3895080 (1975-07-01), Davis
patent: 3957896 (1976-05-01), Yokoyama et al.
patent: 4014949 (1977-03-01), Hedge
Japanese Public Disclosure 240632/87 dated 10/21/87 (T. Taniguchi and the other).
Barder Timothy J.
Hobbs Simon H.
Caldarola Glenn
McBride Thomas K.
Spears Jr. John F.
Stec John M.
UOP
LandOfFree
Two-stage adsorptive separation process for purifying 2,6 Dimeth does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Two-stage adsorptive separation process for purifying 2,6 Dimeth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-stage adsorptive separation process for purifying 2,6 Dimeth will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2154238