Process for removing nitrosating agents from 1-chloro-2,6-dinitr

Details Process for removing nitrosating agents from 1-chloro-2,6-dinitr Process for removing nitrosating agents from 1-chloro-2,6-dinitr

1982-04-22

1984-04-03

Sebastian, Leland A.

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

Organic compounds

Oxygen containing

C07C 7912

Patent

active

044409621

ABSTRACT:
To obtain technical TRIFLURALIN with a nitrosoamine content not exceeding 1 ppm, for use as a herbicide, 1-chloro-2,6-dinitro-4-(trifluoromethyl) benzene (DINITRO-PCBT) is freed from nitrosating agents by a process in which DINITRO-PCBT is treated with an aqueous bisulphite solution having an SO.sub.2 concentration of between 1% and 5% at a pH of between 1 and 3, at a temperature of between 50.degree. and 100.degree. C. for a time of between 1 and 3 hours. The organic layer is then separated from the aqueous layer, and the acidity and last traces of the bisulphite solution are eliminated from the organic layer by means of an aqueous alkaline solution.

REFERENCES:
patent: 4120905 (1978-10-01), Cannon et al.
patent: 4128425 (1978-12-01), Greenwald
patent: 4338473 (1982-07-01), Habig et al.

Affiliated with

Also associated with

Rating

Process for removing nitrosating agents from 1-chloro-2,6-dinitr 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 removing nitrosating agents from 1-chloro-2,6-dinitr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for removing nitrosating agents from 1-chloro-2,6-dinitr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-668412