VERFAHREN ZUR RUECKGEWINNUNG VON RHENIUM

A process for the recovery of rhenium from a rhenium-containing catalytic composition comprising rhenium, platinum and alumina by treating the catalytic composition with an aqueous caustic soda solution in such a manner that the platinum- containing residue is removed from the solution, preferably b...

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Main Authors STRAUSS,RENATE, BECKER,KARL,.DR, NEUBAUER,HANS-DIETER,.DR, KOEGLER,WOLFGANG, HERING,RUDOLF,.DR
Format Patent
LanguageGerman
Published 05.04.1979
Edition2
Subjects
CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
FERROUS OR NON-FERROUS ALLOYS
INORGANIC CHEMISTRY
METALLURGY
PRETREATMENT OF RAW MATERIALS
PRODUCTION AND REFINING OF METALS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:A process for the recovery of rhenium from a rhenium-containing catalytic composition comprising rhenium, platinum and alumina by treating the catalytic composition with an aqueous caustic soda solution in such a manner that the platinum- containing residue is removed from the solution, preferably by filtration, the resultant solution containing perrhenate and approximately from 100 to 200 g Al2O3/litre and from 150 to 300 g NaOH/litre, adsorbing the perrhenate contained in the resultant solution on a macroporous anion- exchange resin carrying quaternary trialkylammonium anchor groups, and extracting perhenic acid from the anion-exchange resin by treatment with hydrohalic acid, e.g. hydrochloric acid, at an elevated temperature. A solution containing dissolved platinum and rhenium may be obtained by adding elemental platinum to the hydrohalic acid extract and chlorinating.
Bibliography:Application Number: DE19782836632