Prater, R. B. <br/><br/>
Defluorination of byproduct zinc concentrates / 
by R.B. Prater, Jr., V.R. Miller, and E.R. Cole, Jr. 
 - Pittsburgh, Pa. :  U.S. Dept. of the Interior, Bureau of Mines,  1985. 
 - 13 p. :  ill. ;  28 cm. 
 - Report of investigations ;  8957 .
 - Report of investigations (United States. Bureau of Mines) ;  8957. .
<br/><br/>Bibliography: p. 12-13. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zinc--Metallurgy.<br/>Fluorine.<br/>Leaching.<br/>Fluorspar.<br/>Sulphuric acid.
<br/><br/><label>LC Class. No.: </label>TN23  TN796  / .U43 no. 8957 
<br/><br/><label>Dewey Class. No.: </label>622 s  669/.52�19