| Title | A laboratory and pilot plant investigation on a molybdenite ore from Pressac Molybdenite Mines Limited, Cadillac, Abitibi-East, Qubec |
| Download | Not digitized. Availability |
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| Author | Mathieu, G I; Bruce, R W |
| Source | Canada Mines Branch, Investigation Report IR 63-122, 1963, 42 pages, https://doi.org/10.4095/325140  Open Access |
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| Year | 1963 |
| Publisher | Canada Department of Energy, Mines and Resources |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Province | Quebec |
| Released | 1963 01 01 |
| Abstract | (Summary)
Selective flotation tests on a sample of ore, assaying 0.44% MoS? and 0.07% Bi, gave a molybdenite concentrate assaying 95% MoS? and 0.4% Bi with a 93% Molybdenite recovery, and a
bismuth concentrate assaying 9.2% Bi with a 75% Bi recovery. It was not possible to upgrade the bismuth concentrate further in bench-scale tests due to the small amount of material available for cleaning. The results of small scale tests were
confirmed in the pilot plant investigation except that the grade of the molybdenite concentrate was reduced slightly and a larger percentage of the fine bismuth minerals were mechanically entrained in the molybdenite concentrate. The amount of copper
and other impurities in the molybdenite concentrate were with, in market specifications. The molybdenite concentrate would require leaching with straight hydrochloric acid to reduce its bismuth content. Selective flotation of the bismuth minerals in
the pilot plant investigation produced a bismuth concentrate assaying 44% Bi. Tabling of some of these concentrates raised the grade to 74% Bi. |
| GEOSCAN ID | 325140 |
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