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Recovery of heavy minerals from Alabama sand and gravel operations.

Authors
Sullivan GV; Browning JS
Source
Tuscaloosa, AL: U.S. Department of the Interior, Bureau of Mines, TPR 22, 1970 Mar; :1-14
NIOSHTIC No.
10009726
Abstract
The Bureau of Mines studied 25 samples from 15 Alabama sand and gravel operations to determine their heavy mineral content. All of the samples contained some heavy minerals (4 to 188 pounds per ton), and 80 percent contained 20 or more pounds of heavy minerals per ton of sand and gravel. Valuable heavy minerals, in order of decreasing amounts, were ilmenite, kyanite, zircon, rutile, and monazite. Large-scale concentration tests were made on samples from three of the state's major producers.
Keywords
Gravel; Sand; Minerals; Industries; Recovery; Purification; Gravity; Sampling; Distillation; Ores; Metal sources; Titanium; Silicates; Zirconium; Oxides; Separation; Heavy minerals; Ilmenite; Kyanite; Zircon; Rutile; Monazite; Heavy mineral analysis
Publication Date
19700301
Document Type
IH; Other
Fiscal Year
1970
NTIS Accession No.
PB-190997
NTIS Price
A03
Identifying No.
TPR 22
NIOSH Division
TURC
Source Name
Tuscaloosa, AL: U.S. Department of the Interior, Bureau of Mines, TPR 22
State
AL
Page last reviewed: June 28, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division