The final tungsten concentrate obtained meets the specifications required to produce tungsten metal, ferrotungsten
and tungsten based chemicals (Guar, 2006).
We looked for a better technology of manufacturing the chemically clean hexachlorid of tungsten ([WCl.sub.6]) through chlorination of ferrotungsten. Then, in the 1970's, I continued this experimental research study at the Baikov Institute of Metallurgy, Russian Academy of Sciences.
Study of the Experimental Method of Manufacturing the Hexachloride of Tungsten through Chlorination of Ferrotungsten and Tungsten.
The Pre-feasibility Study for the Big Hill Tungsten Deposit confirmed Big Hill as a source of feedstock for the Company's majority-owned ATC Ferrotungsten
Project in Vietnam, which is expecting its first production over the coming months.
The website also reported that Chinese Government imposed export taxes varying from 5% to 15% on primary tungsten products on January 1 this year, including APT, tungsten carbonate, tungsten powder, ferrotungsten
and scrap tungsten, as well as canceling export tax rebates on tungsten products.
High-grade tungsten concentrates (>65% [WO.sub.3]) can be smelted directly with charcoal or coke in an electric arc furnace to produce ferrotungsten
Hazelwood Resources Limited (ASX:HAZ), which has a majority stake in the ATC Ferrotungsten
Project in Vietnam said that construction of the ferrotungsten
refinery, which is the largest of its kind outside of China, is nearing completion.