TW280839B - Process for recovery of tungsten carbide scraps by selective electrolysis - Google Patents

Process for recovery of tungsten carbide scraps by selective electrolysis

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Publication number
TW280839B
TW280839B TW082108557A TW82108557A TW280839B TW 280839 B TW280839 B TW 280839B TW 082108557 A TW082108557 A TW 082108557A TW 82108557 A TW82108557 A TW 82108557A TW 280839 B TW280839 B TW 280839B
Authority
TW
Taiwan
Prior art keywords
tungsten carbide
acid
anode
scraps
electrolyte
Prior art date
Application number
TW082108557A
Other languages
Chinese (zh)
Inventor
Jiing-Chyi Lin
Shenq-Long Lii
Jiann-Yuan Lin
Original Assignee
Nat Science Council
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nat Science Council filed Critical Nat Science Council
Priority to TW082108557A priority Critical patent/TW280839B/en
Application granted granted Critical
Publication of TW280839B publication Critical patent/TW280839B/en

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Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Manufacture And Refinement Of Metals (AREA)

Abstract

A process for the recovery of Tungsten Carbide from Tungsten Carbide Scraps of Cobalt as a binder includes the following steps : (a) soaking Tungsten Carbide Scraps (10) in electrolyte (9) of electrolysis tank (1); the electrolysis tank (1) consisted of Cathode and Anode; the electrolyte (9) selected from one of the acid solutions of Hydrochloric Acid, Nitric Acid, Sulfuric Acid, Phosphoric Acid; also included a selection from one of the Coordination Agents of Citric Acid, Aminoacetic Acid, Oxalic, Ammonium Chloride, EDTA; while connecting the Tungsten Carbide Scraps (10) to that Anode; in which the addition of Coordination Agent is between 0.1N~5.0N; the addition of that acid solution is between 5~50 g/l; (b) connecting electric current from Potentiometer to that Cathode and Anode, controlling the electric potential of Anode at 200~600mV and undergoing selective electrolysis, to dissolve Cobalt binder of Tungsten Carbide Scraps in electrolyte; (c) recovering Tungsten Carbide pellets.
TW082108557A 1993-10-15 1993-10-15 Process for recovery of tungsten carbide scraps by selective electrolysis TW280839B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW082108557A TW280839B (en) 1993-10-15 1993-10-15 Process for recovery of tungsten carbide scraps by selective electrolysis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW082108557A TW280839B (en) 1993-10-15 1993-10-15 Process for recovery of tungsten carbide scraps by selective electrolysis

Publications (1)

Publication Number Publication Date
TW280839B true TW280839B (en) 1996-07-11

Family

ID=51397595

Family Applications (1)

Application Number Title Priority Date Filing Date
TW082108557A TW280839B (en) 1993-10-15 1993-10-15 Process for recovery of tungsten carbide scraps by selective electrolysis

Country Status (1)

Country Link
TW (1) TW280839B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI612013B (en) * 2015-03-31 2018-01-21 Jx Nippon Mining & Metals Corp Method for manufacturing tungsten carbide
US11958115B2 (en) 2017-08-11 2024-04-16 Kennametal Inc. Grade powders and sintered cemented carbide compositions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI612013B (en) * 2015-03-31 2018-01-21 Jx Nippon Mining & Metals Corp Method for manufacturing tungsten carbide
US11958115B2 (en) 2017-08-11 2024-04-16 Kennametal Inc. Grade powders and sintered cemented carbide compositions

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