Chemistry of inorganic compounds – Nitrogen or compound thereof – Carbon containing
Patent
1990-10-09
1992-03-17
Langel, Wayne
Chemistry of inorganic compounds
Nitrogen or compound thereof
Carbon containing
502527, C01C 302
Patent
active
050966871
ABSTRACT:
The manufacture of hydrogen cyanide by the catalytic reaction of air, ammonia and a hydrocarbon gas employing a catalyst pack which consists of a top layer of platinum-rhodium alloy catalyst gauze or granular catalyst and a bottom layer of platinum-rhodium alloy metal catalyst gauze or granular catalyst, wherein the top layer is a finer mesh than the bottom layer.
REFERENCES:
patent: 2607663 (1952-08-01), Perry et al.
patent: 2666689 (1954-01-01), Heider
patent: 3033658 (1962-05-01), Gross et al.
patent: 3056655 (1962-10-01), Inman
patent: 3215495 (1965-11-01), Jenks et al.
patent: 4469666 (1984-09-01), Stephenson et al.
E. I. Du Pont de Nemours and Company
Krukiel Charles E.
Langel Wayne
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