2017-3-19 flotation machines (Cao et al., 2012; Gui et al., 2013; Zhang et al., 2013). In this work, the flotation behavior of nickel sulfide ore in the cyclonic flotation column was evaluated in the laboratory scale. The function of the column cyclonic zone was evaluated by comparing quality of the tailing and circulation middling. The
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2018-1-1 In order to improve the flotation of nickel sulphides, sodium hexametaphosphate, sodium silicate, carboxymethyl cellulose (CMC), and other agents are used to disperse serpentine coating from sulphide surfaces in the flotation of the Jinchuan deposit and other nickel ores in China ( Kirjavainen and Heiskanen, 2007; Lu, et al., 2011).
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2013-12-1 The sulphidation of a nickeliferous lateritic ore was studied at temperatures between 450 and 1100 °C and for sulphur additions of 25–1000 kg of sulphur per tonne of ore. The experiments demonstrated that the nickel could be selectively sulphidized to form a nickel–iron sulphide. It was found that both the grade and the sulphidation degree
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Flotation of low grade nickel sulfide ores into a concentrate suitable for smelting, and at acceptable nickel recovery, can be challenging. Alteration of the gangue minerals can mean talc is present in considerable quantities. Talc floats naturally and can be very difficult to depress without significant nickel losses. High talc bearing ores have often been considered untreatable.
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2020-1-8 the flotation recovery of Ni, Cu and Co from a nickel-copper sulphide ore. The effect on flotation performance of various parameters such as pH, collector dosage, % solids and depressant dosage at different levels was investigated. Therefore, the main objective of the study was to optimize the process parameters for the flotation of base metals
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2014-8-11 The flotation by surface sulphidisation of the oxidized copper-cobalt-bearing ore from Kimpe (1.97% Cu; 0.66% Co) was studied in order to
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Sulphide Flotation. In practice, sulfide flotation plants operate at pulp potentials that are in the range of +50 to +200mV versus SHE (Grano, 2004) and the value depends on the pulp pH, type and quantity of sulfide minerals, the type and quantity of grinding media (Rao et al., 1976), and the amount of air–pulp contact in and after the grinding circuit (Teague et al., 1999b).
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2007-12-31 Flotation practice differs by geographical location. Bulk sulfide flotation is generally carried out on Western Australian nickel ores which tend to
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2017-5-27 pulp and the flotation response was investigated through a series of rheological and batch flotation tests. The nickel-sulfide ore from the Mt. Keith plant (Western Australia) was used for the tests. It is a low-grade nickel sulfide ore which is characterized by complex mineralogical composition with a large content of serpentine minerals.
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2016-6-7 A typical example of a nickel sulRde plant operat-ing with highly Soatable talcose gangue is at Trojan mineinZimbabwe.TheZimbabweansulRdedeposits contain very low grades of nickel (0.6%) and copper (0.04}0.4%). The easily Soatable non-sulRde min-erals dilute the grade of the concentrate and also result in nickel losses into the tailings. This
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1973-12-17 Flotation of nickel sulfide ores 申请号 US42540973 申请日 1973-12-17 公开(公告)号 US3852167A 公开(公告)日 1974-12-03 申请人 DOW CHEMICAL CO; 发明人 HARRIS G; COLLINS D; 摘要 WHEREIN X is oxygen or sulfur and R is hydrogen or a
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2 天前 of ferronickel and nickel pig iron (NPI) as lower cost substi-tutes for class 1 nickel in stainless steel production (Campagnol et al. 2017; McRae 2018, 2020b). The extraction of nickel from sulfide ores typically com-mences with comminution and flotation to produce a sulfide
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What I claim as my invention is 1. A process for the flotation recovery of copper and nickel sulphide minerals from ore containing both such minerals by a process in which at least two conditioning steps precede flotation, said process comprising: -- conditioning a pulp of the ore in the presence of an alkaline agent to produce a conditioned alkaline pulp; then, in at least one
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2020-1-8 the flotation recovery of Ni, Cu and Co from a nickel-copper sulphide ore. The effect on flotation performance of various parameters such as pH, collector dosage, % solids and depressant dosage at different levels was investigated. Therefore, the main objective of the study was to optimize the process parameters for the flotation of base metals
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2007-12-31 Flotation practice differs by geographical location. Bulk sulfide flotation is generally carried out on Western Australian nickel ores which tend to
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2018-7-26 A nickel-copper sulfide system usually coexists with serpentine in deposits. Low nickel-copper recovery and high content of serpentine in concentration adversely affects subsequent metallurgical processes. In this
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2017-5-27 pulp and the flotation response was investigated through a series of rheological and batch flotation tests. The nickel-sulfide ore from the Mt. Keith plant (Western Australia) was used for the tests. It is a low-grade nickel sulfide ore which is characterized by complex mineralogical composition with a large content of serpentine minerals.
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2011-12-1 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
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Download scientific diagram SEM image of as-synthesized nickel sulfide. from publication: Nickel(II) dithiocarbamate complexes containing pyrrole moiety for sensing of
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2022-2-2 The samples were the tailings after copper sulfide and nickel sulfide flotation. Each of the HOG and LOG samples was homogeneously divided into 3 different charges with different particle size distribution, through grinding and passing sieves of 200 mesh, 325 mesh, and 400 mesh, respectively. As a result, six sub-samples were obtained and
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A method of concentrating nickel sulfide ores by flotation which comprises subjecting the ore in the form of a pulp to a flotation process in the presence of an effective quantity of a flotation collector comprising a dithiocarbamate compound corresponding to the formula ##SPC1## Wherein X is oxygen or sulfur and R is hydrogen or a hydrocarbon radical containing from 1 to
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Process mineralogy of copper-nickel sulphide flotation by. Keywords: cyclonic-static micro-bubble flotation column; process mineralogy; copper-nickel sulphide; micro-fine particles 1 Introduction Nickel, called the “vitamin of industry”, is a very important raw material of the nonferrous metals. With the development of the economy and the
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2 天前 of ferronickel and nickel pig iron (NPI) as lower cost substi-tutes for class 1 nickel in stainless steel production (Campagnol et al. 2017; McRae 2018, 2020b). The extraction of nickel from sulfide ores typically com-mences with comminution and flotation to produce a sulfide
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1973-12-17 Flotation of nickel sulfide ores 申请号 US42540973 申请日 1973-12-17 公开(公告)号 US3852167A 公开(公告)日 1974-12-03 申请人 DOW CHEMICAL CO; 发明人 HARRIS G; COLLINS D; 摘要 WHEREIN X is oxygen or sulfur and R is hydrogen or a hydrocarbon
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2020-1-8 the flotation recovery of Ni, Cu and Co from a nickel-copper sulphide ore. The effect on flotation performance of various parameters such as pH, collector dosage, % solids and depressant dosage at different levels was investigated. Therefore, the main objective of the study was to optimize the process parameters for the flotation of base metals
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2022-3-17 Abstract. Abstract: Effect of butyl xanthate， butylamine aerofloat and thiamine esters used alone and in combination on flotation of low-grade nickel sulphide ore were studied. The results showed that the nickel grade of rougher concentrate was up to 3% when butyl xanthate or thiamine esters was used alone for flotation of nickel sulphide ore
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16.1 ORE TYPES AND MINERALOGY. There are more than 45 different nickel minerals, but only a few are of economic importance. Table 16.1 lists some of the most important nickel minerals. Nickel, in various ores can also be found in other minerals, such as pyrrhotite and various cobalt minerals as an exsolution in isomorphic phases.
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2020-1-7 Here are four processes used in the froth flotation process of copper-nickel sulfide ore. 1. Differential flotation or partial differential flotation process. When the content of copper is much more than nickel in the ore, this process can be used to separate the copper as the single concentrate. The advantage of this process is that the copper
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In hydrometallurgical processes, nickel sulfide ores undergo flotation (differential flotation if Ni/Fe ratio is too low) and then smelted. After producing the nickel matte, further processing is done via the Sherritt-Gordon process. First, copper is removed by adding hydrogen sulfide, leaving a concentrate of only cobalt and nickel. Then
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Download scientific diagram SEM image of as-synthesized nickel sulfide. from publication: Nickel(II) dithiocarbamate complexes containing pyrrole moiety for sensing of
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