About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
New Directions in Mineral Processing, Extractive Metallurgy, Recycling and Waste Minimization: An EPD Symposium in Honor of Patrick R. Taylor
|
Presentation Title |
D-26: Critical Review of Chemical Metallurgy of Tungsten |
Author(s) |
Raj Pal Singh Gaur |
On-Site Speaker (Planned) |
Raj Pal Singh Gaur |
Abstract Scope |
Tungsten is one of the most important refractory metals. Tungsten from its concentrates and secondary sources is processed as high purity Ammonium Para Tungstate (APT) through a multiple steps process. This paper will review the literature, especially, related to new conceptual APT-process which could lead to increased efficiency, energy reduction and waste minimization. Currently, there are two main APT processes: one uses solid ion exchange and the other uses liquid ion exchange. Both processes generate large amount of process wastewater. This paper will review some of the process-related issues such as processing of low grade ores, equipment scaling and the separation of critical impurities and reduction in process steps. Some new chemistry, which may be helpful in generating energy from process by-products and wastewater and will make the APT process less energy dependent and more sustainable in the coming future, will also be discussed |
Proceedings Inclusion? |
Planned: |
Keywords |
Hydrometallurgy, Extraction and Processing, Powder Materials |