Metal chelate process to remove pollutants from fluids

Details Metal chelate process to remove pollutants from fluids Metal chelate process to remove pollutants from fluids

1992-10-29

1994-12-06

Lewis, Michael

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

4232422, 42324301, C01B 2100

Patent

active

053708490

ABSTRACT:
The present invention relates to improved methods using an organic iron chelate to remove pollutants from fluids, such as flue gas. Specifically, the present invention relates to a process to remove NO.sub.x and optionally SO.sub.2 from a fluid using a metal ion (Fe.sup.2+) chelate wherein the ligand is a dimercapto compound wherein the --SH groups are attached to adjacent carbon atoms (HS--C--C--SH) or (SH--C--CCSH) and contain a polar functional group so that the ligand of DMC chelate is water soluble. Alternatively, the DMC' is covalently attached to a water insoluble substrate such as a polymer or resin, e.g., polystyrene. The chelate is regenerated using electroreduction or a chemical additive. The dimercapto compound bonded to a water insoluble substrate is also useful to lower the concentration or remove hazardous metal ions from an aqueous solution.

REFERENCES:
patent: 3984522 (1976-10-01), Saito et al.
patent: 4732744 (1988-03-01), Chang et al.

Affiliated with

Also associated with

Rating

Metal chelate process to remove pollutants from fluids does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Metal chelate process to remove pollutants from fluids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metal chelate process to remove pollutants from fluids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-212793