Decolorization process

Details Decolorization process Decolorization process

1998-07-22

2000-03-28

Wong, Edna

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

568366, C07B 6300, C07C 4500

Patent

active

060426985

ABSTRACT:
The present invention is a process for reducing the color intensity of discolored isophorone, said process comprising exposing the discolored isophorone to UV radiation suitably having a wavelength in the region of about 370-400 nanometers. The decolorization method is advantageous in that the use of `foreign chemicals` is avoided. Furthermore there are no waste-disposal problems that are encountered with the use of carbon or Fuller's earth.

REFERENCES:
patent: 4248673 (1981-02-01), Cheminal et al.
patent: 4434301 (1984-02-01), Papa
patent: 4917783 (1990-04-01), Yokota et al.
patent: 5358611 (1994-10-01), Bauer, Jr. et al.
Derwent Publications, No. 91-054738, XP002083318 (1991). No Month Available.
Derwent Publications, No. 87-339782, XP002083319 (1987). No Month Available.
Patent Abs. of Japan, vol. 005, No. 071 (1981), Feb. 1981.

Affiliated with

Also associated with

Rating

Decolorization process 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 process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Decolorization process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1322907