Principles and practice of sulphide mineral flotation
Mechanisms of the action of various flotation reagents, including collectors, activators and depressants, commonly used in sulphide mineral flotation are discussed in terms of the chemical and electrochemical principles presented within this paper.
The depressant-free flotation separation of Cu/Zn sulfide …
Analysis of DEHTT used to prepare the experimental solution revealed the presence of N 1 s, O 1 s, and S 2p species in accord with the chemical formula of C 7 H 12 N 4 OS, ... Lime use and functionality in sulphide mineral flotation: A review. Miner. Eng., 143 (2019), Article 105922. View PDF View article View in Scopus Google Scholar [6]
FLOTATION OF SULFIDE MINERAL SPECIES WITH OILS
characterized by: the use of compounds without sulfur as reagents in the selective flotation by of certain mineral sulfides and metallic compounds. such non-sulfur reagents, which are compatible with ing agents, are used alone or in mixtures with commercial reagents containing sulfur, and are preferred an essential oil, with at least a compound of …
Flotation of sulfide mineral species with oils
A method for beneficiation of a mineral sulfide-containing material by air-injection froth flotation in the presence of a collector, the method comprising: a) providing an aqueous slurry of the …
Insight into mineral flotation fundamentals through the DFT …
Flotation is a complex process that occurs in solid–liquid-gas multiphase systems, and its main factors include the minerals, separation medium, as well as various flotation reagents. The study of mineral properties and interactions with other components such as reagents and water lays the basic theoretical foundation for flotation.
Enhanced flotation of sulfide fines using the emulsified oil …
1.. IntroductionOne of the major (and old) technical challenges in the area of mineral processing is the recovery, by flotation, of the fine (< 37 µm) mineral particles (Trahar, 1981, Sivamohan, 1990, Collins and Read, 1971, Shibata and Fuerstenau, 2003, Rubio et al., 2003, Rubio et al., 2006).The mineral fines formation or generation is diverse, from many …
US Patent 7461745 Flotation of sulfide mineral species with oils
US Patent 7461745 Flotation of sulfide mineral species with oils. Patent 7461745 was granted and assigned to Nalco (company) on December, 2008 by the United States Patent and Trademark Office. Overview Structured Data Issues Contributors Activity. Contents. Is a. Patent. 0. Patent attributes.
Insights into the flotation performance of ethylenediamine …
Hemimorphite (Zn 4 Si 2 O 7 (OH) 2 ·H 2 O) is a notable Zn oxide mineral, where the Zn site serves as the primary active site during flotation [8].However, the intricate internal arrangement of hemimorphite results in the irregularity of the mineral surface structure. Zinc on the mineral surface is often shielded by SiO 4 during interactions with reagents, resulting in a …
Flotation of Xinhua molybdenite using sodium sulfide as …
International Journal of Mineral Processing, 2003, 72: 151−162. [16] RALSTON J. E h and its consequences in sulfide mineral flotation [J]. Minerals Engineering, 1991, 4: 859−878. [17] JONES M H. Some recent developments in the measurement and control of xanthate, perxanthate, sulphide and redox potential in flotation [J].
Flotation of mixed copper oxide and sulphide minerals with …
The conditioning and flotation times to collect each concentrate were the same as used in the sulphide batch flotation tests. ... For data simplification, the mineral species were grouped as listed in Table 3. The mineral abundance (mass%) for the feed, concentrate and tail for the blend composite is summarised in Table 4 and Fig. 1.
Recent progress on research of molybdenite flotation: A …
In a copper‑molybdenum processing plant, copper sulfide concentrate (such as chalcopyrite) is floated together with molybdenite in the first stage. [7] The separation of molybdenite and copper sulfide is achieved in the second stage through flotation. [8] In most scenarios, copper sulfides, such as chalcopyrite, are depressed using a depressant (e.g. …
Sulfide Flotation
Sulfide flotation refers to the electrochemical process in which sulfide minerals are recovered by froth flotation, involving the transfer of electrons between different sulfide minerals. This …
FLOTATION OF SULFIDE MINERAL SPECIES WITH OILS …
corpus id: 62830861; flotation of sulfide mineral species with oils cross-reference to related applications
US 20060000753A1
These non-sulfur-containing compounds may be from natural sources, such as vegetable oils, or synthesized commercial sources. These non-sulfide collectors can be used singularly, in …
Comparing the Performance of the Use of Recycled Vegetable Oil …
Flotation is the traditional process used for concentrating sulfide ores, based on the differences in hydrophobicity exhibited by the minerals which are enhanced by collectors. Xanthates are the collectors widely used in the flotation of minerals such as common sulfides (Cu, Mo, Pb, Zn, Co, Ni) and native metals. However, xanthates have negative impacts on …
CHAPTER 7 FLOTATION OF SULPHIDE MINERALS
In this model the role of the oxygen is to oxidise lattice sulphide ion to sulphur. Flotation of Galena (PbS) Complete flotation of galena is achieved from pH 2 to pH 10 using ethyl xanthate The collector adsorption mechanisms were discussed above. The hydrophobic metal-collector species responsible for flotation is PbX 2.
Flotation mechanisms of molybdenite fines by neutral oils
The flotation mechanisms of molybdenite fines by neutral oils were investigated through microflotation test, turbidity measurements, infrared spectroscopy, and interfacial interaction calculations. The results of the flotation test show that at pH 2−11, the floatability of molybdenite fines in the presence of transformer oil is markedly better than that in the …
NEW Patent CD for Flotation of sulfide mineral species with oils
NEW Patent CD for Flotation of sulfide mineral species with oils : Everything Else. Skip to main content.us. Delivering to Lebanon 66952 Update location All. Select the department you want to search in. Search Amazon. EN. Hello, sign in. Account & Lists Returns & Orders. Cart All ...
CHAPTER 7 FLOTATION OF SULPHIDE MINERALS
Chalcocite (Cu2S) and chalcopyrite (CuFeS2) are the two most commonly floated copper sulphide minerals. Bornite (Cu5FeS4) and covellite (CuS) and energite (Cu3AsS4) are …
Evaluation of the Use of Recycled Vegetable Oil as a …
In this research, the technical feasibility of using recycled vegetable oil (RVO) as a collector of copper sulfide minerals in the flotation process using seawater was studied.
Flotation chemistry of nonsulfide minerals
This situation further complicates the analysis of nonsulfide flotation chemistry, and in view of the foregoing, it is evident that the flotation chemistry is distinctly dtfferentfrom the flotation chemistry of sulfide minerals. Nonsulfideflotation technology also differs from sLtlfide flotation technology with respect to particle size.
Optimizing the industrial flotation performance of sulfide …
In this paper a detailed example will be given to show why this change in collector approach is necessary for naturally floatable sulfide minerals. The example to be given is …
Challenges in flotation of Cu-Mo sulfide ores in sea water
The results of the flotation of Cu−Mo sulfide ores with seawater at pH 11 and natural pH presented in this investigation confirm the results presented in the studies by Castro 13 and Jeldres et ...
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This invention is directed to the use of non-sulfur containing compounds as collectors in the froth flotation of certain mineral sulfide and metallic compounds. These non-sulfur-c
WO2000009268A1
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Lime use and functionality in sulphide mineral flotation: A …
Lotter et al. (2016) overlapped the results of previous flotation studies on a number of sulphide minerals with the Pourbaix stability diagrams of both xanthate and dithiophosphate species in water solution, identifying regions in the pH-Eh domain in which collector adsorption is more or less likely on each mineral, and selective flotation can ...
Flotation Chemistry of Complex Sulphide Ores
Recycling of process water in sulphide flotation: Part 3. Effect of calcium and sulphate species on sphalerite flotation to be submitted to Journal of Colloid and Interface Science. 4. Fatai K Ikumapayi, Maria Makitalo, Björn Johansson, K Hanumantha Rao, Recycling of process water in sulphide flotation: Part 4. Effect of calcium and sulphate ...
Effects of oils and lubricants on the flotation of copper sulphide
The effects of the addition of oils and lubricants commonly encountered in mining and processing copper sulphide ores on the subsequent flotation of copper minerals was investigated by laboratory scale testing. ... in the subsequent copper mineral flotation but other oils and lubricants used at the plant had detrimental effects on selectivity ...
Flotation of sulfide mineral species with oils
a technology of sulfide mineral species and oil, which is applied in the direction of flotation, solid separation, etc., can solve the problems of high cost of collectors, and toxic sulfur based …
Flotation of an Oxidized Copper Sulfide Ore
Kansanshi copper mine is situated in the north western province of Zambia. As a result of the mineral variations, the processing plant treats three distinct ore types, viz. oxide, sulphide and mixed.