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Flotation of a copper sulphide ore from Okiep using thiol collectors and their mixtures The Journal of The South African Institute of Mining and Metallurgy VOLUME 105 NON REFEREED PAPER MARCH 2005 201 Figure 1The final cumulative copper recovery vs. collector dosage obtained with C2 X, di C2 DTP and di C2 DTC in the flotation of the Okiep copper ore
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Aug 25, 1987What is claimed is 1. A method of beneficiating copper from copper bearing ore by froth flotation, whereby flotation is conducted in the presence of synergistic mixture of a collector blend and a collector additive, said collector being a blend of (A) about 80% by weight of an alkyl xanthogen alkyl formate of the formula ##STR5## wherein X is a branched or straight chain alkyl substituent
The present invention relates to the drainage or dewatering of ore concentrates and more particularly to an improved method for dewatering as by filtration, to produce solids which have a desirably low moisture content and which are readily and easily handled by conventional methods of materials handling. The method employs the use of linear or branched alkyl ethoxylated alcohols as dewatering
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History of Sulphide ore flotation dates back to beginning of 20th century. Sulphide ores are major sources of base metals like Copper, Lead, Zinc, Nickel, Cobalt etc. Beneficiation of these base metal sulphide minerals is predominating through froth flotation technique. This technology has acclaimed
Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic.This is used in mineral processing, paper recycling and waste water treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century.
A sequential flotation process for the separation of components of an ore containing sulfides of copper and molybdenum involves initially effecting selective flotation of the copper component directly from the ore by conditioning the ore with a combination of a source of bisulfite ion and causticized starch to produce a conditioned ore
A sequential flotation process for the separation of components of an ore containing sulfides of copper and molybdenum involves initially effecting selective flotation of the copper component directly from the ore by conditioning the ore with a combination of a source of bisulfite ion and causticized starch to produce a conditioned ore having a pH between approximately 5.2 and 6.2, and
parameters in the separation of copper molybdenum (Bulatovic, 2007). The floatability of molybdenum in porphyry copper ores depends on some factors such as the effect of mineralogy, slime coatings, grinding and mineral liberation, and flotation reagents (Shirley and Sutulov, 1985; Hernlund, 1961).
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The present invention provides a new collector for use in the froth flotation of metal values from their ores. The collector comprises a synergistic mixture of alkyl xanthogen alkyl formates and dialkyl thionocarbamates, and yields metal recoveries superior to that achieved with either collector alone. According to the present invention the novel collector for use in froth flotation comprises
A Comparative Study of Kinetics of Flotation of a Copper Nickel Ore by The time recovery plots are shown in Figure 3 to Figure 4, and were fit for the modified rate equation (Eq. 8) to obtain the first order rate constant k and the recovery at infinite time IL., The rate constants
On some ores the desired results were not obtained with hydroxamates for reasons unrelated to the chemistry of the collector. Oxide copper in the ore is perhaps not recoverable by flotation. Insufficient efforts have been made to demonstrate the efficacy and cost benefits of using alkyl hydroxamates in a
A Review of the Flotation of Copper Minerals. Tinashe O. Ndoro, Lordwell K. Witika. Abstract. L. Evrard and J. DeCyper, "Flotation of copper cobalt ores with alkyl hydroxamates," in Proceedings of the 11th International Mineral Processing Congress, Cagliari, 1975.
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The process involves a series of flotation known as the differential flotation. In the flotation of copper zinc massive sulfide ores, flotation properties of copper and zinc are determined by the nature and composition of the ore. Copper zinc massive sulfide is even regarded as the most complex ore and consequently the most difficult to treat.
flotation of mixed copper ore tfg. Segregation Process of Mixed Sulphide Copper Ore. Sulphide copper ores are normally concentrated by flotation while the oxide ores undergo hydrometallurgical treatments. The mixed sulphideoxide copper ores may be processed by combined methods such as flotation followed by leaching and precipitation of the
Selectivity and power of frothers in copper ore flotation 517 The ore was crushed in a jaw crusher to obtain particles smaller than 1 mm in size. Prior to each flotation experiment, the crushed material was wet ground in a steel ball mill. The size distribution of the ore, used as the flotation feed, is presented