Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1996-01-16
1997-11-11
Rotman, Alan L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
546 6, 546 21, C07F 958, C07F 108, C07F 306
Patent
active
056866135
ABSTRACT:
Novel pyridine phosphonate ligands are disclosed that when combined with polyvalent metals results in useful catalyst compositions for the conversion of hydrogen sulfide to solid sulfur. Catalysts containing these novel ligands exhibit resistance to metal precipitation and demonstrate little or no oxidative chemical degradation when employed to convert hydrogen sulfide to elemental sulfur.
REFERENCES:
patent: 4011304 (1977-03-01), Mancini et al.
patent: 4189462 (1980-02-01), Thompson
patent: 4238462 (1980-12-01), Hardison
patent: 4622212 (1986-11-01), McManus et al.
patent: 5139753 (1992-08-01), Hardison
patent: 5273734 (1993-12-01), Sawyer et al.
Chemical Abstracts, Vo.78(No.6) abst.No.37,329a Feb. 12, 1973.
Chemical Abstracts, vol. 104(No. 18), abst.No.160,892m May 5, 1986.
Chemical Abstracts, Vo.103(No.18), abst.No.148,128p, Nov. 4, 1985.
Chemical Abstracts, vol. 102(No. 13), abst. No. 124,498n, Apr. 1, 1985.
Chemical Abstracts, vol. 102(No. 12), abst. No. 105,084h, Mar. 25, 1985.
Young-Shen Huang et al., Polyhedron, vol. 10. No. 19, pp. 2229-2233, Dec. 1991.
Oxidation of H.sub.2 S to S by Air With Fe(III)-NTA as a Catalyst: Catalyst Degradation; By Dian Chen, Ramunas J. Motekaitis, Arthur E. Martell, and Derek McManus; Canadian Journal of Chemistry, vol. 71, pp. 1524-1531, 1993 .
Chen Dian
Martell Arthur E.
McManus Derek
Rotman Alan L.
Wheelabrator Clean Air Systems Inc.
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