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typically contain 28 pct Cu and from 0.5 to 1.5 pct each of nickel and cobalt. Most of the nickel and cobalt are present as the mineral siegenite, (Ni,Co)3S4 ' almost none of which is recovered presently. The Bureau of Mines, U.S. Depart ment of the Interior, has been conducting research on
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Aug 01, 2015 Patents by Petrovich, 1975a, Petrovich, 1975b suggested the use of iminophenols and phenolaldimines as collectors for garnierite (nickel silicate) using small scale laboratory tests. Flotation results indicated concentrate grades of 13.6% Ni at 89.4% Ni recovery using cresyaldiminooctanol and 10.4% Ni grade at 94.2% Ni recovery using methylimino-di-hydroxybenzoic acidRead More
Flotation Reagent. Flotation reagents include copper sulfate, sodium isobutyl xanthate (SIBX) as the primary collector, a dithiophoshate promoter, and two frothers, MIBC and Interfroth 60. From: Gold Ore Processing (Second Edition), 2016. Related terms: Frothers; Xanthate; Depressant; pH; Pyrite; Reagent; Adsorption; Oxidation; OxideRead More
The latter may be problematic when intergrown inclusions of pentlandite or nickel in solid solution are present (Rao, 2000). Rejecting hexagonal pyrrhotite may be achieved by (i) staged flotationRead More
flotation tests are the most widely used method to evaluate reagents, characterise ore variability and obtain suitable model parameters using various scale up factors Runge (2101) other methodsRead More
Conventional flotation technology has historically failed to achieve high recoveries when treating 15 μm particles (Lynch et al, 1981). The new StackCell™ flotation technology was developed to specifically target this particle size range, and was tested at pilot plant scale at Mt Keith Nickel ConcentratorRead More
in flotation. The same reagent is also sometimes used in water treatment ... recovery of nickel at the large nickel ... where the economies of scale permit the use of sulphide in the form of H. 2. S generated at site from the reaction of hydrogen gas with molten sulphur. In recent yearsRead More
Jun 08, 2016 The flotation reagents can be added in a feed-forward fashion based on the plant raw coal tonnage. Automatic feedback control of the flotation reagent addition rates has been lacking due to the unavailability of sensors for determining the quality of the froth cell tailings. Expensive nuclear-based sensors have been tried with limited successRead More
flotation technology. the froth flotation process is used to sepa- rate coal and mineral mixtures with particles showing different physico-chemical surface properties towards water. these properties are either natural or can be produced and even enhanced by treatment with surface- active reagents. Basically, the flotation process itself takes place when mineral particles attach to air bub- bles and rise up. since the beginning of the 20th century froth flotationRead More
Mar 25, 2019 For a flotation reagent with a small dosage, if the concentration is too large, it would be difficult to properly control the dosage of it, and the transportation would be inconvenient too. When preparing an aqueous solution, we often dissolve the flotation reagent in the container with a small amount of waterRead More
The new StackCell™ flotation technology was developed to specifically target this particle size range, and was tested at pilot plant scale at Mt Keith Nickel Concentrator. The streams tested, Slimes Rougher Tailings and Fines/Slimes Cleaner Tailings, represent 21% and 11% of the total nickelRead More
Nov 01, 2011 Nov 01, 2011 Xstrata Technology considers “the most noticeable has been the increase in sizes of the flotation machines, from the multiple small square cells that were initially used, to the 300 m round cells used today that are the norm in large scale plants. “Other changes have been more subtle, but equally as importantRead More
The results of separation nickel showed an overall upgrade of Ni from 0.4 to 0.7% Ni in the flotation feed sample, at a recovery of 87% and from recovery gold showed there was no change in gold recoveries when the amount of oxide gangue (quartz) in the ore was increased, indicating absence of competition between gold and quartz gangueRead More