Tungsten recovery from low-grade concentrates by amine solvent extraction / by P.E. Churchward and D.W. Bridges.
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| Format: | Government Document Book |
| Language: | English |
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[Washington, D.C.] :
U.S. Dept. of the Interior, Bureau of Mines,
1966.
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| Series: | Report of investigations (United States. Bureau of Mines) ;
6845. |
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