Preparation of hydroxylammonium salts

Details Preparation of hydroxylammonium salts Preparation of hydroxylammonium salts

1982-02-01

1983-09-13

Vertiz, O. R.

Chemistry of inorganic compounds

Nitrogen or compound thereof

Oxygen containing

423388, C01B 2114

Patent

active

044041764

ABSTRACT:
A process for the preparation of hydroxylammonium salts by catalytic reduction of nitric oxide with hydrogen in a dilute aqueous solution of a mineral acid, in the presence of a suspended supported platinum catalyst, at elevated temperatures, wherein the reaction is carried out in a conventional manner, in one or more reaction zones, under superatmospheric pressure, and the exit gases produced are let down to a lower pressure, and are reacted, in a downstream reaction zone, with the reaction mixture, containing hydroxylammonium salt, the ammonium salt, the supported platinum catalyst and residual mineral acid, from the upstream reaction zone or zones, or with a fresh aqueous solution of the mineral acid, which contains the supported platinum catalyst in suspension.

REFERENCES:
patent: 3954946 (1976-05-01), Graf et al.

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