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Recovery of Potash Feldspar from Molybdenite Tailings.

Authors
Sullivan-YWHGV
Source
MISSING :22 pages
Link
NIOSHTIC No.
10006906
Abstract
The Bureau of Mines used several laboratory batch flotation schemes combined with magnetic separation to investigate the feasibility of recovering potash feldspar and glass sands from molybdenite tailings. Four molybdenite tailings of prospective tailings were used as test samples. Feldspar concentrates containing from 10.7 pct to 12.0 pct k2o were recovered from three of the four samples. The alkali content of the fourth sample met the grade for a mixed feldspar. All the feldspar concentrates contained iron in excess of the 0.10-Pct-fe2o3 specification for most uses. Electron-beam microprobe examination of the feldspar concentrates showed the presence of an iron-bearing potash feldspar in quantities that were excessive with respect to most iron specifications. However, a high- quality glass sand was produced from all of the samples.
Publication Date
19800101
Document Type
IH; Report of Investigation;
Fiscal Year
1980
NTIS Accession No.
NTIS Price
Identifying No.
RI 8475
NIOSH Division
TURC;
Source Name
MISSING
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