METHOD OF PYROMETALLURGICAL REFINING OF PLATINUM ALLOYS

• Main Authors: MAZALETSKIJ A.G, ERMAKOV A.V, DMITRIEV V.A, NIKIFOROV S.V, TIMOFEEV N.I, SIVKOV M.N, KHLEBNIKOV A.I
• Format: Patent
• Language: English
• Published: 20.07.1998
• Edition: 6
• Subjects: CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

FIELD: metal refining. SUBSTANCE: invention may find use in refining of platinum alloys by vacuum electron-beam zone melting in crystallizer employing at least two electron beams. First, one of the beams is exposed on metal surface and maintained motionless until metal melts in its focal spot zone,...