Process for extracting and disposing of nitrophenolic by-product

Details Process for extracting and disposing of nitrophenolic by-product Process for extracting and disposing of nitrophenolic by-product

1988-09-12

1990-05-15

Spear, Frank

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210909, C02F 126

Patent

active

049255657

ABSTRACT:
A process for treating nitrophenolic by-products contained in nitration waste water including the steps of solvent extraction, solvent and nitrophenolic residue recovery by distillation, and incineration of the nitrophenolic residue is disclosed. The extraction process involves the extraction of the nitrophenolic by-products from the nitration waste water utilizing a solvent in the presence of an acid at an elevated temperature and acidic pH. The extraction produces a nitrophenolic solvent solution which is subjected to a distillation to recover the solvent for reuse and produce a residue containing the nitrophenolic materials. The residue can be disposed of by incineration.

REFERENCES:
patent: 2812305 (1957-11-01), Manka
patent: 4401570 (1983-08-01), Blytas et al.
patent: 4418221 (1983-11-01), Yasuda et al.
patent: 4597875 (1986-07-01), Carr et al.
patent: 4793931 (1988-12-01), Stevens et al.

Affiliated with

Also associated with

Rating

Process for extracting and disposing of nitrophenolic by-product does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for extracting and disposing of nitrophenolic by-product, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for extracting and disposing of nitrophenolic by-product will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-620005