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2016-6-7 Figure 5 Flotation selectivity in the separation of pentlandite from pyrrhotite using sulfur dioxide and diethylenetriamine with sodium isobutyl xanthate (pH+9.2, 25 g t 1 Dow froth!250). (Reprinted with permissionfrom the CanadianInstitute of Mining, Metallurgy and Petroleum.) Figure 6 Flotation results obtained with Clarabelle ore from
ContactFlotation of cobalt sulfide ores can be best achieved at acidic pH (~. 4) with xanthate collectors and at pH of about 7.5 for oxide ores with nitrosonaphthol chelating reagents, while their
Contact2016-6-7 100 million pounds of cobalt and 150 million pounds of nicke 1 (1., .§.)3 is of enhanced importance because the cobalt and nickel content can be upgraded as a result of mill-ing operations. Although the ore contains an average of less than 0.04 pct Co plus Ni, 50 to 55 pct of this content is concentrated
ContactThe major cobalt source in the ore is the mineral siegenite. Separation and concentration of siegenite by froth flotation is complicated by the mineralogy of the ore. The siegenite is often present as an intimate replacement in tergrowth with chalcopyrite (fig. 1), sphalerite, galena (fig. 2), and the iron sulfides, pyrite and marcasite.
ContactCobalt and copper are extracted by (1) flotation concentrate production, (2) sulfation roasting, (3) leaching (sometimes along with additional “oxide” concentrate or ore), (4) solvent extraction separation of Cu from Co, (5) copper electrowinning, (6) Co-rich raffinate purification, (7) Co(OH) 2 precipitation, and (8) Co(OH) 2 releach and
Contact2020-4-16 Flotation kinetics was treated for study the variation of the cumulative recovery of a component (copper and cobalt) proportionally to flotation time [18], as a time-rate recovery process. II. MATERIALS AND METHODS A. Sample The ore sample on which we worked was from mine of Kalukuluku in Lubumbashi in the Democratic Republic of Congo.
Contact2007-4-6 Extraction of cobalt from complex ore flotation concentrates obtained from the Blackbird Mine. Idaho. USA is reviewed. After flotation of a primary copper concentrate, a bulk concentrate is recovered containing major amounts of cobalt, arsenic, and iron, with minor amounts of copper and nickel.
Contact2011-2-1 Flotation of the oxidized ore was performed with fatty acid type Rinkalore. Copper and cobalt present in the ore were concentrated with optimal doses of sodium silicate, Rinkalore mixture of 500 g/t, 1500 g/t respectively and optimum tall oil and pH of 23% and 9.5 respectively. The influence of Rinkalore Bioex, Rinkalore Booster Q, pH and
Contact2020-9-1 The ore from the Nchanga open pit contains pockets of ore with higher grades of cobalt, typically about 0.3% cobalt and 1.3% copper. This ore is processed in campaigns through the cobalt flotation circuit, which is illustrated schematically in Fig. 11. The concentrate typically contains about 16% copper and 4% cobalt.
Contact2019-5-8 The principle process of “copper-cobalt bulk flotation” was determined according to the ore characteristics. Then the efficient recovery of the ore resources was realized by applying the process of "1 roughing-2 scavenging-3cleaning-rough concentrate regrinding” combining the use of new efficient collector BK404B and the new copper-cobalt activator BKNA.
ContactNICKEL AND COBALT ORES : FLOTATION. Most of the world’s nickel is extracted from the mineral pentlandite, (Ni, Fe)9S8, which frequently occurs in ores containing predominantly pyrrhotite and various non-sulRdes, some of which contain magnesium (Table 1). The nickel content in such sulRde ores is generally low (0.2}3%) and varies from place to
ContactThe flotation by surface sulphidisation of the oxidized copper-cobalt-bearing ore from Kimpe (1.97% Cu; 0.66% Co) was studied in order to evaluate its behavior by the analysis of its most
Contact2009-8-26 The RC 1 concentrate value for cobalt for this ore was invariably lower than the second and third etc concentrate values for repeat tests indicating an initial sluggishness of the cobalt minerals to flotation.
Contact2019-11-22 Flotation of mixed oxide sulphide copper-cobalt minerals using xanthate, dithiophosphate, thiocarbamate and blended collectors L.T. Tijsseling, Q. Dehaine, G.K. Rollinson, H.J. Glass⁎ UniversityofExeter,CamborneSchoolofMines,Penryn,CornwallTR109FE,UnitedKingdom
ContactAs part of a study investigating the influence of mineralogical variability in a sediment hosted copper–cobalt deposit in the Democratic Republic of Congo on flotation performance, the flotation of nine sulphide ore samples was
Contact2007-4-6 Extraction of cobalt from complex ore flotation concentrates obtained from the Blackbird Mine. Idaho. USA is reviewed. After flotation of a primary copper concentrate, a bulk concentrate is recovered containing major amounts of cobalt, arsenic, and iron, with minor amounts of copper and nickel.
Contact2020-4-16 Flotation kinetics was treated for study the variation of the cumulative recovery of a component (copper and cobalt) proportionally to flotation time [18], as a time-rate recovery process. II. MATERIALS AND METHODS A. Sample The ore sample on which we worked was from mine of Kalukuluku in Lubumbashi in the Democratic Republic of Congo.
Contact2021-4-26 4000 tons of the ore, producing 55 tons of concentrate assaying 17*7% cobalt. There was little activity in the area after this until 1938 when the Uncle Sam Mining Co. constructed a 75-ton flotation mill. Ho attempt was made to recover the
Contact2021-10-21 Hunan Tongju Chemical Co.,Ltd. its products mainly include flotation reagents for sulfide ore and oxide ore, metal extraction agents, contact number:136-3740-6610
Contact2019-5-8 The principle process of “copper-cobalt bulk flotation” was determined according to the ore characteristics. Then the efficient recovery of the ore resources was realized by applying the process of "1 roughing-2 scavenging-3cleaning-rough concentrate regrinding” combining the use of new efficient collector BK404B and the new copper-cobalt activator BKNA.
ContactNICKEL AND COBALT ORES : FLOTATION. Most of the world’s nickel is extracted from the mineral pentlandite, (Ni, Fe)9S8, which frequently occurs in ores containing predominantly pyrrhotite and various non-sulRdes, some of which contain magnesium (Table 1). The nickel content in such sulRde ores is generally low (0.2}3%) and varies from place to
ContactIntroduction of cobalt flotation : The flotation machine impeller rotates by triangle belt of the motor, with produces centrifugal function and causes negative pressure.On one hand it draws in enough air mixed with ore magma; on the other hand it agitates
ContactThe mineral composition of copper–cobalt ores is more complex than that of copper sulfides, and it is also difficult to discard tailing efficiently in primary flotation for the fine-grained disseminated of ore. In this work, a mineral liberation analyzer (MLA) was employed to study the characteristics of minerals. As a significant mineralogical characteristic, the liberation degree of useful
Contact2019-11-22 Flotation of mixed oxide sulphide copper-cobalt minerals using xanthate, dithiophosphate, thiocarbamate and blended collectors L.T. Tijsseling, Q. Dehaine, G.K. Rollinson, H.J. Glass⁎ UniversityofExeter,CamborneSchoolofMines,Penryn,CornwallTR109FE,UnitedKingdom
Contact2009-8-26 The RC 1 concentrate value for cobalt for this ore was invariably lower than the second and third etc concentrate values for repeat tests indicating an initial sluggishness of the cobalt minerals to flotation.
Contact2020-4-16 Flotation kinetics was treated for study the variation of the cumulative recovery of a component (copper and cobalt) proportionally to flotation time [18], as a time-rate recovery process. II. MATERIALS AND METHODS A. Sample The ore sample on which we worked was from mine of Kalukuluku in Lubumbashi in the Democratic Republic of Congo.
Contact2007-4-6 Extraction of cobalt from complex ore flotation concentrates obtained from the Blackbird Mine. Idaho. USA is reviewed. After flotation of a primary copper concentrate, a bulk concentrate is recovered containing major amounts of cobalt, arsenic, and iron, with minor amounts of copper and nickel.
Contact2021-4-26 4000 tons of the ore, producing 55 tons of concentrate assaying 17*7% cobalt. There was little activity in the area after this until 1938 when the Uncle Sam Mining Co. constructed a 75-ton flotation mill. Ho attempt was made to recover the
Contact2011-12-1 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 importance as a versatile process for
Contact2021-11-2 excellent cobalt-nickel separation primary leach liquor by Cyanex 272. However, manganese extraction from the leach liquor along with cobalt could not be avoided, thus increasing the cost of the process. For sulphide ores, there is another alternative; if the ore can be concentrated by flotation, matte smelting is used instead of leaching.
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