Separating tantalum and columbium by solvent extraction :HF- HCl-Diethyl ketone system

Author:	Hunter, W. L.
Additional Authors:	Higbie, Kenneth B.
Year:	1961
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:5918
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	5918
Subjects:	Tantalum
	Niobium
Link:	https://hdl.handle.net/2027/mdp.39015078529826