Details:

Personal Author:
Kotlyar, D. G. ; Tolley, W. K. (William K.) ; Rice, David A. (David Arthur)
Kotlyar, D. G. ; Tolley, W. K. (William K.) ; Rice, David A. (David Arthur) Less -
Corporate Authors:
United States. Bureau of Mines.
Description:
"The effects of oxidation on the floation of chromite and olivine were studied in an effort to improve chromite recovery from domestic sources. The flotation behavior of pure chromite, pure olivine, and a chromite gravity concentrate were investigated. Freshly prepared chromite floated well between pH 2.2 and pH 4.5, but floated poorly at pH greater than 5. Oxidation at 150 deg. C increased chromite floatability above pH 5 to about 30%. In contrast, oxidation did not measurably affect olivine flotation. This suggested that controlled oxidation may improve selectivity in the flotation of chromite from olivine. This concept was tested using a chromite gravity concentrate. Both flotation recovery and Cr2O3 grade increased slightly following oxidation of the concentrate. Although the benefit from oxidation was small, this result shows some promise for improving flotation selectivity using oxidation." - NIOSHTIC-2

NIOSHTIC no. 19950101


Subject:
[+]
Chromite -- Metallurgy.
Flotation.
Olivine -- Metallurgy.
Oxidation.

Series:
Report of investigations (United States. Bureau of Mines) ; 9575
Document Type:
Report
Collection(s):
National Institute for Occupational Safety and Health
Main Document Checksum:
[+]
urn:sha256:5fdfa7c2f274a7cdbdd1188e74536f7ad0383ffab57901d31f2aaccd5b6ba0fc
File Type:

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