FOERFARANDE FOER RENING AV AEDELMETALLER

• Main Authors: HOLLOWAY, JOHN HENRY, STANGER, GILLIAN, BOYD, DAVID ALAN
• Format: Patent
• Language: Finnish
• Published: 18.08.1989
• Edition: 4
• 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

Feed mixtures containing one or more platinum group metals are fluorinated to form at least one volatile fluoride product which is separated from the residual solid. Separations of different fluorides may be effected by collecting different fractions of volatile fluorides. Palladium does not form a...