Recovery of Tungsten and Copper from Waste Tungsten Copper Borings

Autores

  • Nicky Kisku Department of Metallurgical and Materials Engineering, Indian Institute of Technology, Kharagpur, West Bengal, India
  • D.C. Sau Council of Scientific and Industrial Research-National Metallurgical Laboratory, Jamshedpur, Jharkhand, India

Palavras-chave:

Tungsten-copper borings, APT, leaching, electrolysis, hydrometallurgy

Resumo

During the last many years, the unused tungsten and copper alloy from the discarded electric and electronic equipment and industrial scraps are gathering attention as a section of waste. Because of tungsten's many diverse uses, numerous types of scrap were available for recycling by a wide variety of processes. In the present study, tungsten and copper was recovered by leaching process in ammonium hydroxide solution followed by electro winning process. This results the production of APT crystals and when heated it gives tungstic acid. On further heating, this tungstic acid with coke at around 1000°C gives tungsten powder and by electro winning process pure copper is obtained. Ammonium Paratungstate has a wide usage such as tungsten metal powders, tungsten oxides of high purity or as a laboratory reagent. It is also used in some other applications like coloring agent and in catalyst industry.Cite this Article Nicky Kisku, Sau DC. Recovery of tungsten and copper from waste tungsten copper borings. Journal of Materials & Metallurgical Engineering. 2017; 7(1): 1–8p. 

Downloads

Publicado

2017-02-23

Edição

Vol. 7 N.º 1 (2017)

Secção

Research Articles

Licença

Declaration and Copyright Transfer Form

(to be completed by authors)

 

I/ We, the undersigned author(s) of the submitted manuscript, hereby declare, that the above manuscript which is submitted for publication in the STM Journals(s), is not published already in part or whole (except in the form of abstract) in any journal or magazine for private or public circulation, and, is not under consideration of publication elsewhere.

·         I/We will not withdraw the manuscript after 1 week of submission as I have read the Author Guidelines and will adhere to the guidelines.

·         I/We Author(s ) have niether given nor will give this manuscript elsewhere for publishing after submitting in STM Journal(s).

·         I/ We have read the original version of the manuscript and am/ are responsible for the thought contents embodied in it. The work dealt in the manuscript is my/ our own, and my/ our individual contribution to this work is significant enough to qualify for authorship.

·          I/We also agree to the authorship of the article in the following order:

Author’s name                                    

 

1. ________________

2. ________________

3. ________________

4. _______________

 

We  Author(s) tick this box and would request you to consider it as our signature as we agree to the terms of this Copyright Notice, which will apply to this submission if and when it is published by this journal.