UTILISATION METHOD OF WASTES OF HARD ALLOYS CONTAINING TUNGSTEN CARBIDE AND COBALT AS BINDING AGENT Russian patent published in 2013 - IPC C22B7/00 C22B34/36 C25C1/06 

Abstract RU 2489504 C2

FIELD: metallurgy.

SUBSTANCE: method involves dipping of wastes into acid electrolyte, connection to a positive pole of an electric current source and performance of electrolysis with conversion of cobalt to a solution and tungsten to slurry. Electrolysis is performed using direct current. As electrolyte there used is 5-15% of sulphuric acid solution containing 2% of a reducing agent. As a result, tungsten is obtained in slurry in the form of tungsten carbide powder.

EFFECT: excluding formation of tungstic acid in slurry.

1 dwg, 1 ex

Similar patents RU2489504C2

Title Year Author Number
METHOD OF PROCESSING CARBIDE WASTE ORIGINATED FROM SOLID ALLOYS 1996
  • Palant A.A.
  • Levin A.M.
  • Brjukvin V.A.
RU2110590C1
METHOD FOR PROCESSING OF SCRAP OF TUNGSTEN-CONTAINING CERMET COMPOSITIONS 1992
  • Krasikov B.S.
  • Nikolaeva L.A.
  • Jakovleva S.V.
RU2048561C1
TECHNOLOGY PROCESSING WASTE OF HARD ALLOYS 2001
  • Alkatsev M.I.
  • Guriev V.R.
RU2189402C1
METHOD TO REPROCESS WASTES OF HARD ALLOY 1992
  • Nikolaev A.I.
  • Majorov V.G.
  • Nikolaev V.P.
  • Kopkov V.K.
RU2025519C1
METHOD OF PROCESSING LUMP WASTES OF SOLID ALLOYS 1996
  • Zharkov D.V.
  • Zykus M.Ju.
  • Medvedev A.S.
  • Fisenkov M.V.
RU2101375C1
METHOD FOR PROCESSING HARD ALLOY SCRAP CONTAINING COBALT AND TUNGSTEN 1993
  • Nikolaev A.I.
  • Majorov V.G.
  • Kopkov V.K.
  • Nikolaev V.P.
RU2080296C1
METHOD OF ELECTROCHEMICAL PROCESSING REFRACTORY NICKEL ALLOY WASTES BEARING RHENIUM, TUNGSTEN, TANTALUM AND OTHER VALUABLE METALS 2012
  • Levin Aleksandr Mikhajlovich
  • Palant Aleksej Aleksandrovich
  • Brjukvin Vladimir Aleksandrovich
  • Lebedev Aleksandr Denisovich
  • Palant Leonid Alekseevich
  • Levchuk Oksana Mikhajlovna
RU2484159C1
VALUABLE METAL EXTRACTION PROCESS FROM SUPER-ALLOYS 2002
  • Shtoller Viktor
  • Ol'Brikh Armin
  • Meeze-Marktsheffel' Julianeh
  • Mati Vol'Fgang
  • Erb Mikhaehl'
  • Nitfel'D Georg
  • Gille Gerkhard
RU2313589C2
METHOD TO APPLY COATINGS WITH TUNGSTEN CARBIDES 2011
  • Tikhonov Aleksandr Alekseevich
RU2463392C1

RU 2 489 504 C2

Authors

Petrov Viktor Viktorovich

Dmitriev Ehduard Anatol'Evich

Moiseev Andrej Vladimirovich

Kirillov Aleksej Vital'Evich

Sablin Pavel Alekseevich

Dates

2013-08-10Published

2011-10-24Filed