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An Evaluation of the USBM Sorting Machine on Native Copper Ores of the Keweenaw District.

Authors
Schultz-CW; Karkkainen-CW
Source
NTIS: PB 274 413 Available for Reference At Bureau Libraries :63 pages
Link
NIOSHTIC No.
10008311
Abstract
This report is a comprehensive evaluation of a Bureau of Mines developed induction balance sorting machine for separating rock fragments that contain metal from those that do not. The machine was evaluated using run-of-mine ore containing native copper from the Kingston and Centennial Mines, and waste rock that contains copper metal from the Champion Mine. The tests show that the sorter is capable of sorting efficiencies of 9.15 pct with a 97+ pct availability. Calculations suggest that if the capacity of the machine can be increased, the cost of mining native copper ores could be reduced.
Publication Date
19770101
Document Type
CP; Final Contract Report;
Fiscal Year
1977
NTIS Accession No.
PB-274413
NTIS Price
A05
Identifying No.
OFR 158-77
NIOSH Division
WO;
Source Name
NTIS: PB 274 413 Available for Reference At Bureau Libraries
State
MI;
Performing Organization
Michigan Technological Univ.
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