Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By addition of extraneous agent – e.g. – solvent – etc.
Patent
1990-09-17
1992-06-09
Garvin, Patrick P.
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By addition of extraneous agent, e.g., solvent, etc.
585854, 585868, C07C 710
Patent
active
051209020
ABSTRACT:
A process for the preparation of a cumene feed for cumene oxidation from a fresh cumene stream and a recycle cumene stream containing trace quantities of at least one organic acid compound by means of introducing the fresh cumene stream and the recycle cumene stream containing trace quantities of an organic acid compound into a lower zone of a generally vertical elongated countercurrent contacting zone having a caustic/hydrocarbon contacting section in a lower portion of the countercurrent contacting zone and a water/hydrocarbon contacting section in an upper portion of the countercurrent contacting zone; introducing a water stream to provide water to the water/hydrocarbon contacting section; including an aqueous caustic scrubbing solution to provide caustic solution to the caustic/hydrocarbon contacting section; removing spent aqueous caustic solution from the countercurrent contacting zone; and removing and recovering a cumene feed from the countercurrent contacting zone.
REFERENCES:
patent: 2884377 (1956-08-01), Bozich et al.
patent: 3284506 (1966-11-01), Mantegazza et al.
Phenol, Encyclopedia of Chemical Technology, Kirk-Othmer, vol. 17, pp. 373-384.
Schulz Russell C.
Tagamolila Constante P.
Cutts, Jr. John G.
Garvin Patrick P.
Irzinski E. D.
McBride Thomas K.
Tolomei John G.
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