Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1980-01-21
1985-07-30
Garner, Vivian
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
210638, 568907, 2603973, 570259, 2603975, 570261, 2604109R, 260417, 423437, 549525, 560 24, 560132, 560157, 560204, 560231, 560246, 560265, 562527, 562529, 562530, 562543, 562593, 564 57, 568 6, 568357, 568360, 568361, 568363, 568403, 568485, 568557, 568833, 568836, 568877, 568880, C01B 3120, C07C 5127, C07C 51305, C07C 5131, C07C 5514, C07C12715, C07D30114, C07J 100
Patent
active
045323470
ABSTRACT:
The instant invention relates to a membrane solvent extraction and reaction system. More particularly it pertains to an improvement in the membrane solvent extraction system wherein a solute is extracted through a polymeric membrane from one solvent liquid phase to an extracting solvent liquid without direct contact between the liquid phases which are separated by the membrane and in which the extracting solvent has no greater solubility and usually substantially less solubility for the solute than the feed solvent. The impovement comprises converting the solute permeating across the membrane to a different chemical compound, whereby a high concentration gradient for the solute across the membrane is maintained to improve the separation of the solute from the feed solvent liquid phase. This improved process is particularly useful for the separation of partially oxygenated hydrocarbons from admixture with hydrocarbons and conversion of the permeating oxygenated hydrocarbons by oxidation in an extracting aqueous solvent containing an oxidizing agent, and in which extracting solvent the oxygenated hydrocarbon solute is less soluble than in the hydrocarbon solvent. This process is especially useful for the separation of the oxidation products of cyclohexane, e.g., cyclohexanol and cyclohexanone, by permeation through a hydrophilic membrane, e.g., fluorocarbon polymers containing pendant sulfonic acid and/or carboxylic acid groups and the salts thereof, into an aqueous solvent comprising an oxidant, e.g., nitric acid. In this embodiment, the oxidation products of cyclohexane may be continuously separated from unoxidized cyclohexane and converted into adipic acid.
REFERENCES:
patent: 2923749 (1960-02-01), Lee et al.
patent: 3299157 (1967-01-01), Baddour et al.
patent: 3784399 (1974-01-01), Grot
patent: 3956112 (1976-05-01), Lee et al.
Garner Vivian
Tonkin Charles J.
Varen Technology
LandOfFree
Membrane solvent extraction process does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Membrane solvent extraction process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Membrane solvent extraction process will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2374309