Decolorization of aqueous glyoxal solutions

Details Decolorization of aqueous glyoxal solutions Decolorization of aqueous glyoxal solutions

1986-10-06

1988-03-01

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210694, 210917, 568492, B01D 1500

Patent

active

047284358

ABSTRACT:
An aqueous glyoxal solution is decolorized by a process in which the said solution is passed over granulated active carbon which is arranged in a fixed bed and whose differential pore radius distribution has a maximum of from 10 to 100 A, the Peclet number being from 500 to 5000, the decolorized glyoxal solution is discharged, the active carbon bed is then regenerated by treating it with an aqueous solution of an alkaline agent and then with an aqueous acid, and further glyoxal solution to be decolorized is passed over the active carbon regenerated in this manner.

REFERENCES:
patent: 1189896 (1916-07-01), Wijnberg
patent: 1709284 (1929-04-01), Sauer et al.
patent: 3270062 (1966-08-01), Merz et al.
patent: 3507764 (1970-04-01), Asahi et al.
patent: 3574765 (1971-04-01), Kuryla et al.
patent: 3860656 (1975-01-01), McCain, Jr. et al.
patent: 4521632 (1985-06-01), Wickenhaeuser et al.

Affiliated with

Also associated with

Rating

Decolorization of aqueous glyoxal solutions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Decolorization of aqueous glyoxal solutions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Decolorization of aqueous glyoxal solutions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-996230