On-stream analysis of hematite ore fractions using radioisotopes

Journal Article · Tue Jan 01 04:00:00 EST 1974 · X-Ray Spectrom., v. 3, no. 1, pp. 15-20

DOI:https://doi.org/10.1002/xrs.1300030104· OSTI ID:4301345

Reed, D J; Dalton, J L; Gillieson, A H

Hematite ore fractions in the form of circulating slurries of various solids content were analyzed for iron and silicon, their principal metallic constituents, to determine the relationships and factors significant to such analyses. Radioisotopes were used to excite the characteristic radiations which were measured nondispersively. Counts were also taken for the exciting radiations. The measured intensities for Fe K alpha and Si K alpha were corrected by backscatter and absorption fuctors derived by the comparison of counts from the slurries to those from water. Regression lines were used to convent all counts to a 40% solids basis. The iron content of the ore fractions was determined with a standard error of less than 2%. The determination of silicon was not satisfactory at low concentrations because all components of the slurries absorb Si K alpha strongly. (auth)

• Research Organization: Dept. of Energy, Mines, and Resources, Ottawa
• NSA Number: NSA-29-029048
• OSTI ID: 4301345
• Journal Information: X-Ray Spectrom., v. 3, no. 1, pp. 15-20, Journal Name: X-Ray Spectrom., v. 3, no. 1, pp. 15-20; ISSN XRSPA
• Country of Publication: United Kingdom
• Language: English

Related Subjects

*HEMATITE-- X-RAY FLUORESCENCE ANALYSIS
*ORE PROCESSING-- ON-LINE MEASUREMENT SYSTEMS
CADMIUM 109
ERRORS
IRON
IRON 55
N40130* --Chemistry--Analytical & Separations Chemistry-- Radiometric & Radiochemical Procedures
N47320 --Isotope & Radiation Source Technology--Radiation Sources--Industrial Uses
SILICON
SLURRIES