Synthesis of Isocyanic Acid from Nitric Oxide over Palladium and Iridium Catalysts
- 3 November 1978
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 202 (4367) , 525-526
- https://doi.org/10.1126/science.202.4367.525
Abstract
A novel and convenient synthesis of isocyanic acid (HNCO) and its trimer isocyanuric acid has been obtained by the conversion of nitric oxide (NO). Nitric oxide, carbon monoxide, and hydrogen mixed in helium at the level of 0.3 to 5 percent reacted over iridium and palladium catalysts at 280° to 450°C to form HNCO in 60 to 75 percent yield. Major side products were ammonium cyanate at low temperature and ammonia or nitrogen at high temperature. Total conversion of nitrogen from NO to NCO reached 73 percent over palladium and 86 percent over iridium.Keywords
This publication has 19 references indexed in Scilit:
- Synthesis of ammonium cyanate and urea from NO over Pt, Os, Ru, and Cu$z.sbnd;Ni catalystsJournal of Catalysis, 1978
- Synthesis of Ammonium Cyanate and Urea by Reduction of Nitric Oxide on Platinum, Rhodium, and Ruthenium CatalystsScience, 1978
- Continuous colorimetric monitoring of vapour-phase urea and cyanatesThe Analyst, 1978
- Study of the formation of isocyanate surface complexes on Pt/Al2O3 catalystsJournal of Catalysis, 1977
- HCN from the reduction of NO over platinum, palladium, ruthenium, monel and perovskite catalystsJournal of Catalysis, 1976
- An infrared study of the interaction between adsorbed CO and adsorbed NO on supported Ru and supported PtJournal of Catalysis, 1976
- Study of the formation and reactivity of surface isocyanate on Pd/Al2O3 catalystsReaction Kinetics and Catalysis Letters, 1975
- Photoemission spectra of adsorbed layers on Pd surfacesFaraday Discussions of the Chemical Society, 1974
- Infra-red spectrum and structure of the HNCO moleculeDiscussions of the Faraday Society, 1950
- CXLVII.—The constitution of carbamides. Part XIII. The constitution of cyanic acid, and the formation of urea from the interaction of ammonia and cyanic acid at low temperaturesJournal of the Chemical Society, Transactions, 1920