Production of titanium dioxide from perovskite concentrates, acid sulfation method / 
by A.E. Peterson, ... [et al.]. 
 - [Washington, D.C.] :  U.S. Dept. of the Interior,  1990. 
 - iv, 47 p. :  ill. 
 - Report of investigations / Bureau of Mines, U.S. Dept. of the Interior ;  9397 .
 - Report of investigations (United States.  9397 .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>LCCN: </label>92035197     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Titanium--Metallurgy.<br/>Perovskite.<br/>Sulphuric acid.