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optimum conditions for the flotation of , copper and cobalt from a -copper sulphide . The parameters investigated include collector dosage, percentage solids, depressant dosage and pH. The effects of these parameters at three different levels on the of Ni, Cu and Co were investigated using an L 9 Taguchi orthogonal array.read more
exports confirmed at 2.5 Mwmt +54% vs 2019. ... Testwork key findings: > %. grade >13% in concentrate. Negligible arsenic in concentrate. Very attractive Fe ...read more
The content of laterites varies widely: at Le in New Caledonia, for example, the delivered to the smelter in 1900 contained 9 percent currently it contains 1 to 3 percent. Mining. With found in two radically different types of , it is not surprising that the mining methods differ.read more
FIELD: metallurgy. SUBSTANCE: invention concerns metallurgy field. Particularly it concerns and cobalt . Method of and cobalt from - and cobalt-containing laterite ores includes burning of source in deoxidising atmosphere in rotary calciner for selective reduction of and cobalt, at that before burning reducer either is not added at all or is ...read more
Copper- Flotation Process. When process copper-sulfide , collector and frother will be used in order to better results. A basic principle of copper-sulfide process is that it is better to let copper assimilate into rather than the opposite. For it is easier to cooper from concentrate.read more
This method recovers in high yield, usually about percent, based on the content of the -bearing however, the product of this reduction is an iron- alloy, e.g., ferronickel, where the content of the alloy is about 25 percent.read more
The Dumont deposit contains approximately 6.1 billion pounds of in the proven and probable reserve categories a proven and probable reserve of 1,028 million tonnes at 0.27% and 9.75 billion pounds of resources in the measured and indicated category a measured resource of 372 million tonnes at 0.28% and an ...read more
processing - processing - Extraction and refining: The extraction of from follows much the same route as copper, and indeed, in a number of cases, similar processes and equipment are used. The major differences in equipment are the use of higher-temperature refractories and the increased cooling required to accommodate the higher operating temperatures in ...read more
The new flotation circuit will improve from the existing while improving operations and enabling control of concentrate grades to the smelter. The CORe project is fast-tracked and the construction strategy was built around tying in to the existing plant during the 2011 and 2012 planned maintenance shutdowns.read more
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