TECHNOLOGY PROCESSING WASTE OF HARD ALLOYS

hydraulic metallurgy of refractory metals, electrochemical processing of waste of hard alloys containing wolfram. SUBSTANCE: technology processing waste of hard alloys includes anode dissolution of waste in electrolyte based on hydrochloric or sulfuric acid. Anode dissolution is carried out under co...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	ALKATSEV M.I, GURIEV V.R
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PRETREATMENT OF RAW MATERIALS PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF ALLOYS OR NON-FERROUS METALS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	hydraulic metallurgy of refractory metals, electrochemical processing of waste of hard alloys containing wolfram. SUBSTANCE: technology processing waste of hard alloys includes anode dissolution of waste in electrolyte based on hydrochloric or sulfuric acid. Anode dissolution is carried out under condition of asymmetric reversible current with exposure to forward electric current with periodic change-over of direction of current to backward direction. Process is conducted with concentration of hydrochloric or sulfuric acid equal to 30.0-150.0 g/l; duration of action of backward current taub=0.5-2.0 s; ratio of forward current to backward current tauf/taub= 5.0-15.0; density of forward current jf=1.0-5.0 kA/sq.m and ratio of backward current to forward current jb/jf=0.5-2.0, where tauf is duration of action of forward current, s; taub is duration of action of backward current, s; jf is density of forward current, kA/sq.m; jb is density of backward current, kA/sq.m. EFFECT: enhanced productivity of process of electrolysis, increased current efficiency, diminished usage of reagents and improved sanitary and hygiene conditions of work. 2 tbl