TY  - BOOK
AU  - Petersen,A.E.
ED  - United States.
TI  - Production of titanium dioxide from perovskite concentrates, acid sulfation method
T2  - Report of investigations / Bureau of Mines, U.S. Dept. of the Interior
PY  - 1990///
CY  - [Washington, D.C.]
PB  - U.S. Dept. of the Interior
KW  - Titanium
KW  - Metallurgy
KW  - Perovskite
KW  - Sulphuric acid
N1  - Includes bibliographical references
ER  -