Methods for regenerating a sulfur scavenging compound from a pro

Details Methods for regenerating a sulfur scavenging compound from a pro Methods for regenerating a sulfur scavenging compound from a pro

1993-03-05

1994-09-13

Raymond, Richard L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544180, 544215, 544358, 544404, 546184, 548215, 5483001, 5483351, 564 8, 564437, 564457, 564461, 564487, 564506, 564511, 423226, 423228, C07C21109, C07D25104

Patent

active

053470036

ABSTRACT:
Methods are provided whereby an N-C-N compound is regenerated from a product of a sulfur scavenging reaction, in which said N-C-N compound removes a sulfur atom from a sulfur compound, to form the original N-C-N compound. The N-C-N compound is represented by the formula (I): ##STR1## The product includes a hetero compound having sulfur, carbon and nitrogen atoms in its backbone. In one embodiment, the product is mixed with (1) a nitrogen compound represented by the formula (II): ##STR2## and (2) an alkaline compound selected from alkali metal, alkaline earth metal and transition metal compounds, to form a solution, slurry or dispersion. The hetero compound is reacted with the nitrogen compound in the presence of the alkaline compound, such that a sulfur atom of the hetero compound is replaced by a nitrogen atom of the nitrogen compound. If necessary, the pH of the solution may be adjusted to about 8 to about 13 to facilitate the reaction. In alternative embodiments, the product also includes an amine complex. The nitrogen atom being substituted for the sulfur atom in the hetero compound may be obtained from either the nitrogen compound or the amine complex.

REFERENCES:
patent: 2776870 (1957-01-01), Fischer
patent: 4112051 (1978-09-01), Sartori et al.
patent: 4624838 (1986-11-01), Pan et al.
patent: 4647397 (1987-03-01), Starkston et al.
patent: 4775519 (1988-10-01), Yit Nieh
patent: 4978512 (1990-12-01), Dillon
patent: 5128049 (1992-07-01), Gatlin

Affiliated with

Also associated with

Rating

Methods for regenerating a sulfur scavenging compound from a pro does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods for regenerating a sulfur scavenging compound from a pro, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods for regenerating a sulfur scavenging compound from a pro will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1121407