Verfahren zur Herstellung von Hydroxylammoniumsalzen
1,174,779. Activating mole metal catalysts. FARBENFABRIKEN BAYER A.G. 7 Dec., 1966 [28 Dec., 1965], No. 54770/66. Heading B1E. [Also in Division Cl] The activity and selectivity of a catalyst, consisting of rhodium, palladium, irridium, platinum or an alloy of one of these deposited on an activated...
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Zusammenfassung: | 1,174,779. Activating mole metal catalysts. FARBENFABRIKEN BAYER A.G. 7 Dec., 1966 [28 Dec., 1965], No. 54770/66. Heading B1E. [Also in Division Cl] The activity and selectivity of a catalyst, consisting of rhodium, palladium, irridium, platinum or an alloy of one of these deposited on an activated carbon or graphite support, are increased by contact with 2-50 % sulphuric acid for at least 24 hours at up to 100C. The treated catalyst is used in the preparation of hydroxylamine salts from nitric oxide and hydrogen in an acidic solution at 0-60C. |
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