METHOD OF OBTAINING HYDROXYL AMMONIA SALTS

METHOD OF OBTAINING HYDROXYL AMMONIA SALTS

Prepn. of hydroxylammonium salts (I) involves catalytic redn. of NO with H2 in the presence of a hydrogenation catalyst (II). The novel features are that: (a) the reaction mixt. is filtered to give (I) soln. and a filter residue contg. a mixt. of (II) and (I) soln.; and (b) the filter residue is sub...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SCHULZ ROBERT, WILMS AXEL, SCHNEIDER HEINZ-WALTER, MICHELSEN KLAUS, SCHMITZ RUEDIGER
Format: Patent
Sprache:eng
Schlagworte:
AMMONIA
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS THEREOF
CYANOGEN
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Beschreibung
Zusammenfassung:Prepn. of hydroxylammonium salts (I) involves catalytic redn. of NO with H2 in the presence of a hydrogenation catalyst (II). The novel features are that: (a) the reaction mixt. is filtered to give (I) soln. and a filter residue contg. a mixt. of (II) and (I) soln.; and (b) the filter residue is subjected to sedimentation to enrich (II), giving 2 mixts., the first contg. more (II) and the second less (II) than the filter residue.