Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By addition of extraneous agent – e.g. – solvent – etc.
Patent
1998-05-11
1999-12-21
Griffin, Walter D.
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By addition of extraneous agent, e.g., solvent, etc.
585826, 585860, 585864, 585865, 585867, 585857, 208313, C10G 700, C10G 710, C10G 717
Patent
active
060051574
ABSTRACT:
Disclosed is a process for separating at least one cycloalkane containing 5-10 carbon atoms per molecule from at least one close-boiling alkane by extractive distillation of a feed consisting essentially of said at least one cycloalkane and said at least one alkane, the improvement comprising the use of certain pyrrolidones, certain morpholines, sulfoxides, sulfolanes, glycol compounds, or mixtures thereof, and optionally water; wherein said extractive distillation process produces (i) an overhead distillate product which contains a smaller volume percentage of said at least one cycloalkane and a larger volume percentage of said at least one alkane than said feed, and (ii) a bottoms product which contains said solvent and a larger volume percentage of said at least one cycloalkane and a smaller volume percentage of said at least one alkane than said feed; and wherein said at least one cycloalkane is separated from said solvent and recovered from said bottoms product.
REFERENCES:
patent: 2508723 (1950-05-01), Mayland et al.
patent: 2771494 (1956-11-01), Weedman
patent: 2846485 (1958-08-01), Meason et al.
patent: 2891894 (1959-06-01), Cier et al.
patent: 3034969 (1962-05-01), Makin, Jr.
patent: 3114783 (1963-12-01), Butler et al.
patent: 3899412 (1975-08-01), Rowe et al.
patent: 4053369 (1977-10-01), Cines
patent: 4170547 (1979-10-01), Atlani et al.
patent: 4921581 (1990-05-01), Lee et al.
patent: 4944849 (1990-07-01), Lee
patent: 4948470 (1990-08-01), Lee
patent: 4948472 (1990-08-01), Lee et al.
patent: 4954224 (1990-09-01), Brown et al.
patent: 4955468 (1990-09-01), Lee
patent: 5032232 (1991-07-01), Lee et al.
patent: 5055162 (1991-10-01), Brown et al.
patent: 5069756 (1991-12-01), Berg
Atkins, G.T. and Boyer, C.M., "Application of McCabe-Thiele Method to Extractive Distillation Calculations," Sep. 1949, Chem. Eng. Prog., vol. 45, No. 9, pp. 553-562.
Chambers, J.M., "Extractive Distillation, Design and Application," Nov. 1951, Chem. Eng. Prog., vol. 47, No. 11, pp. 555-565.
Hachmuth, K.H., "Industrial Viewpoints on Separation Processes," Dec. 1952, Chem. Eng. Prog., vol. 48, No. 12, pp. 617-626.
"Enhanced Distillation," Perry's Chemical Engineers' Handbook, 6.sup.th Edition, McGraw-Hill Book Company, 1984, pp. 13-75-13-81.
Lee Fu-Ming
Wytcherley Randa Wright
Griffin Walter D.
HFM International, Inc.
Nguyen Tam M.
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