National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

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

PB274413

Publication Date	1977
Personal Author	Schultz, C. W.; Karkkainen, C. W.
Page Count	67
Abstract	The 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 91.5% with a 97+% availability. Calculations suggest that, if the capacity of the machine can be increased, the cost of mining native copper ores could be reduced.
Keywords	Concentrators Beneficiation Copper ores Separation Electromagnetic induction Evaluation Efficiency Keweenaw Peninsula Michigan Sorting machines
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries
Corporate Authors	Michigan Technological Univ., Houghton. Inst. of Mineral Research.; Bureau of Mines, Denver, Colo.
Document Type	Technical Report
Title Note	Contract research rept.
NTIS Issue Number	197804
Contract Number	J0265059

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

An Evaluation of the USBM Sorting Machine on Native Copper Ores of the Keweenaw District.
PB274413

Publication Date	1977
Personal Author	Schultz, C. W.; Karkkainen, C. W.
Page Count	67
Abstract	The 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 91.5% with a 97+% availability. Calculations suggest that, if the capacity of the machine can be increased, the cost of mining native copper ores could be reduced.
Keywords	Concentrators Beneficiation Copper ores Separation Electromagnetic induction Evaluation Efficiency Keweenaw Peninsula Michigan Sorting machines
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries
Corporate Authors	Michigan Technological Univ., Houghton. Inst. of Mineral Research.; Bureau of Mines, Denver, Colo.
Document Type	Technical Report
Title Note	Contract research rept.
NTIS Issue Number	197804
Contract Number	J0265059