Method for purifying spent acid

Details Method for purifying spent acid Method for purifying spent acid

2006-04-25

2006-04-25

Price, Elvis O. (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C568S899000, C568S896000, C568S913000, C568S918000, C568S383000, C210S709000, C210S703000, C210S704000, C210S708000, C210S744000, C210S196000, C516S041000

Reexamination Certificate

active

07034193

ABSTRACT:
A method for purifying a spent acid catalyst from an acid catalyzed chemical reaction that generates a mixture of a product, spent add and tar, includes the steps of separating the mixture of product, spent acid, and tar into a product fraction and a spent acid fraction, said spent acid fraction comprising a mixture of spent acid and tar, and separating the spent acid fraction, by flotation separation, centrifugation, or liquid-liquid coalescence, into a tar fraction and a de-tarred spent acid fraction. The fluidized tar and the de-tarred spent acid can each be further processed to produce concentrated acid.

REFERENCES:
patent: 4406760 (1983-09-01), Knudsen et al.
patent: 5156745 (1992-10-01), Cairo et al.
patent: 6197837 (2001-03-01), Hill et al.
patent: 6245216 (2001-06-01), Hill et al.

Affiliated with

Also associated with

Rating

Method for purifying spent acid does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for purifying spent acid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for purifying spent acid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3587624