Patent ID: 6174505
Filing Date: 2001-01-16
Classification: B01D,B01J,C08F,G21F,Y10T

Abstract:
A process of removing oxygen from a gaseous mixture containing oxygen comprising the step of contacting said gaseous mixture containing oxygen with a tri-, tetra- or penta-azamacrocyclic complex of transition metals of formulas (IV), (V) or (VI): ##STR23##in which n, m, p, q and r, which can be the same or different, are equal to 2 or 3, M is a transition metal that is selected from the group consisting of Ti, Mn, Fe, Co, Ni, Cu, Ru, Rh and Ir, R.sub.1 is a solid support and R.sub.2 represents a hydrogen atom or the group (CH.sub.2).sub.2 --R.sub.3, R.sub.3 is a functional group that is selected from the group consisting of COOH, CONH.sub.2, CH.sub.2 OH, CN and COOR.sub.4, R.sub.4 representing an alkyl or benzyl group, or R.sub.2 representing (CH.sub.2)--R.sub.5, R.sub.5 representing COOH or PO.sub.3 R.sub.6, and R.sub.6 representing hydrogen or an alkyl group.