Distillation: processes – separatory – Convective distillation with normally gaseous medium – e.g. – air
Patent
1993-09-21
1996-10-08
Manoharan, Virginia
Distillation: processes, separatory
Convective distillation with normally gaseous medium, e.g., air
159 134, 159 161, 159 262, 159 49, 203 72, 203 89, 549377, 568615, 568621, B01D 114, B01D 122, B01D 328, B01D 334
Patent
active
055628087
ABSTRACT:
A method and apparatus are disclosed for decontaminating a liquid surfactant of a dioxane having a vapor pressure which is higher than the surfactant. A contaminated liquid surfactant is directed through an inclined conduit. A gas is directed into the inclined conduit, whereby the gas contacts the surfactant and transports the dioxane contaminant, which has volatilized in the inclined conduit, out of the inclined conduit, thereby decontaminating the surfactant. The liquid surfactant is discharged from the inclined conduit.
REFERENCES:
patent: 2486684 (1949-11-01), Schlesman et al.
patent: 2720280 (1955-10-01), Doyle
patent: 3127243 (1964-03-01), Konikoff
patent: 3555786 (1971-01-01), Cochran
patent: 3732668 (1973-05-01), Nichols
patent: 3864214 (1975-02-01), Ohakas
patent: 3970511 (1976-07-01), Rat et al.
patent: 4285881 (1981-08-01), Yang
patent: 4306058 (1981-12-01), Copelin
patent: 4375437 (1983-03-01), Katz et al.
patent: 4405799 (1983-09-01), Chakrabarti et al.
patent: 4443634 (1984-04-01), Ziegenhain et al.
patent: 4946561 (1990-08-01), Braun et al.
patent: 5061458 (1991-10-01), Miller
Saito, Y. et al., "The Determination of the Poly(oxyethylene) Oligomer Distribution in a Non-ionic Surfactant by Means of Thin-Layer Chromatography," Bull. Chem. Soc. Jpn., 62(11):3709-3710 (1989).
Desbene, P. L. et al., "Polarographic Detection of Non-Ionic Surfactants Analyzed by Reversed-Phase Partition Chromatography," J. Chromatography, 465:69-74 (1989).
Desbene, P. L. et al., "Analytical Study of Non-Ionic Surfactants Used in Enhanced Oil Recovery," J. Chromatography, 461:305-313 (1989).
Levsen, K. et al., "On-Line Liquid Chromatography-Mass Spectrometry Analysis of Non-Ionic Surfactants," J. Chromatography, 323:135-141 (1985).
CA 105 (16): 135979h.
CA 110 (3): 23341n.
CA 115 (2): 9673X.
CA 71 (16): 77101g.
Gabriel Richard L.
Sachdeva Yesh P.
Manoharan Virginia
Pharm-Eco Laboratories, Inc.
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