Neutral oil recovery process for the production of naphthenic ac

Details Neutral oil recovery process for the production of naphthenic ac Neutral oil recovery process for the production of naphthenic ac

1990-01-16

1991-04-30

Manoharan, Virginia

Distillation: processes, separatory

With chemical reaction

Including step of adding catalyst or reacting material

159 21, 159 49, 203 72, 203 73, 203 88, 203 89, 560100, 562490, B01D 306, B01D 334

Patent

active

050115790

ABSTRACT:
A process for treating naphthenic fractions with a caustic blend of sodium and potassium hydroxide, preflashing the naphthenic fraction to remove water and then flashing the dewatered fraction to remove the neutral oils and the materials that were not formed into the acid salts. The naphthenic salt mixture is then quenched and acidified so as to recover the naphthenic acids. Naphthenic acids recovered from the process of the present invention have acid numbers which are generally higher than the naphthenic acids heretofore produced from the corresponding feed streams. The process provides for the flashing of the water which otherwise would cause foaming and not permit the recovery of the acid salt for the enhanced separation of the naphthenic acids.

REFERENCES:
patent: 2039106 (1936-04-01), Nelson et al.
patent: 2085287 (1937-06-01), Bailey
patent: 3525777 (1970-08-01), Johnson et al.
patent: 3923644 (1975-12-01), Hindman
patent: 3968002 (1976-07-01), Standiford
patent: 4225394 (1980-09-01), Cox et al.
patent: 4227020 (1980-10-01), Zeinalov et al.
"Napthenic Acid"; Edgar S. Lower; Specialty Chemicals, vol. 7, No. 2, pp. 76-82.
"Recover Napthenic Acids Continuously"; D. B. Todd and F. C. Rac; reprinted from Hydrocarbon Processing, Aug. 1967.

Affiliated with

Also associated with

Rating

Neutral oil recovery process for the production of naphthenic ac does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Neutral oil recovery process for the production of naphthenic ac, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Neutral oil recovery process for the production of naphthenic ac will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-638800