Process for preparing hydroxylammonium salts

Details Process for preparing hydroxylammonium salts Process for preparing hydroxylammonium salts

C - Chemistry, Metallurgy

01

B

C01B 21/14 (2006.01) B01J 23/42 (2006.01) B01J 23/44 (2006.01) B01J 27/13 (2006.01) B01J 37/22 (2006.01)

Patent

CA 2269845

The invention relates to a process for preparing a hydroxylammonium salt through catalytic reduction of nitrate ions in an acid medium in the presence of a palladium and/or platinum catalyst on a carrier in which at least 0.00025 mmol halogen ions are present per m2 of palladium and/or platinum area.

La présente invention se rapporte à un procédé de préparation d'un sel d'hydroxylammonium par réduction catalytique d'ions nitrate dans un milieu acide, en présence d'un catalyseur au palladium et/ou au platine, sur un support comportant au moins 0,00025 millimole d'ions halogènes par m?2¿ de surface de palladium et/ou de platine.

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