Molybdenite flotation in the bulk copper/molybdenum flotation circuit at Kennecott Utah Copper was studied by means of a combination of plant metallurgical surveys, laboratory flotation tests ...

At lines 278-279 in page 8, you explained the floatability of molybdenum was affected by copper ions but I think it depends on the oxidation of molybdenum. Check it again. ... Introduction: The author should mention the current problem in the flotation of copper-molybdenum ore in seawater and must link to the recent research.

The flotation tests were carried out in the XFD flotation cell with a volume capacity of 1 L and 0.5 L. The 55% of feed samples with particle size less than 0.074 mm was used in tests. The flotation concentration was adjusted to a desired level by using tap water. The pulp concentration (solid%) was adjusted from 55% to 25%, respectively.

In the crushing department, which is designed for 8-hour per day operation, a heavy duty apron feeder, with plenty of length for picking …

38 + 20 m and 74 + 38 m, respectively. The actual molybdenum ores were obtained from the tailings of rougher particle flotation processes, produced by the Luanchuan Xinxin Mining Co. Ltd., Luoyang, Henan Province, China. As shown in Figure2, the D50 was 20.19 m and the D75 was 38.46 m. This indicated that the molybdenum …

minerals Article The Interaction between Ca2+ and Molybdenite Edges and Its Effect on Molybdenum Flotation He Wan 1,2,*, Wei Yang 1,*, Weicheng Cao 2, Tingshu He 1, Yanying Liu 2, Jianbo Yang 3, Lin Guo 3 and Yongjun Peng 4 1 College of Materials and Mineral Resources, Xi'an University of Architecture and Technology, Xi'an 710055, …

Keywords: Chalcopyrite; Molybdenite; Bulk flotation; Multiple factors Abstract. The present work mainly focuses on the influencing factors concerning copper molybdenum bulk flotation. Test samples which using four kinds of -100+200 mesh pure minerals contain Cu:0.4%, Mo:0.04%, S:3% respectively. The bulk flotation results show that using z-200+

zakhstan deposit using a combined flotation reagent in comparison with the basic mode in a closed cycle. The results of the flotation of the collective copper-molyb-denum cycle are presented in Table 1. Table 1 Results of c ollective flotation of copper-molybdenum ore in a closed cycle Name of the sample Yield/ % Content / % Extraction / %

In this manuscript, recent progress on molybdenite flotation and the corresponding mechanisms are discussed. 2. Commercial production and process …

In this paper, the influence of Ca2+ on the flotation of a skarn type molybdenum ore and pure molybdenite mineral at pH 8 was studied using diesel as the collector. It was found that Ca2+ had little effect on molybdenum flotation at low concentrations. By further increasing Ca2+ concentration, the floatability of …

Our work showed that HA could be utilized as a promising depressant for molybdenite during the flotation separation of copper-molybdenum sulfides over a wide range of pH. ... 1992, 5(3-5), 279-294 ...

As ore grades constantly decline, more copper tailings, which still contain a considerable amount of unrecovered copper, are expected to be produced as a byproduct of froth flotation. This research reveals the occurrence mechanism of copper minerals in typical copper sulfide tailings using quantitative mineral liberation analysis (MLA) …

During the Cu–Mo ore flotation using an optimally dispersed microemulsion of the combined collector agent, a collective Cu–Mo concentrate was obtained with a copper content of 18.2% with an ...

practice, Cu-Mo ores are often recovered together from sulphide minerals (bulk flotation) [3], followed by flotation to separate Cu from Mo. Satisfactory results are generally obtained in bulk flotation processes. Chalcopyrite (CuFeS. 2) and molybdenite (MoS. 2) are difficult to separate because of their high natural floatability [4,5].

Feed to the molybdenum flotation circuit is a bulk concentrate of 27% Cu and 0.9% Mo at 55 to 60% -325 mesh produced with the use of sodium isopropyl xanthate, fuel oil, aeroprotnoter 3302, and …

For instance, for the flotation separation of a ton of fine copper-molybdenum co-flotation concentrate to be used in this investigation, which assays around 26% Cu and 0.35% Mo with 90–92% mass below 50 μm, a sodium sulfide (Na 2 S) consumption of 20–30 kg was practically required for depression of chalcopyrite against …

The objective of this study is to provide a simple method based on mineralogical analysis to predict the flotation behavior of blended copper-molybdenum …

Molybdenum (often referred to as "Moly") is an important metal in both the industrial world and our daily lives. It was found to be a distinct element by Carl Wilhelm Scheele in 1778 but retained its name from the Greek word …

Before describing the role of surfactants in flotation at Climax Molybdenum Co., a brief history of the develop- ment of other flotation reagents is apropos. Prior to 1937, in essence the only flotation reagent employed at Climax as a frother-promoter was pine oil. Sodium cyanide, however, was also added as a depressant ...

Particle size is a very important factor affecting flotation properties of molybdenite. In porphyry copper–molybdenite ores the flotation conditions (grinding, reagents, bubble size, etc.) all are optimized with respect to Cu and not Mo. Fig. 2 shows that the optimum flotation particle size for molybdenite is around 20 μm, and the size …

One of the water constituents that has not been investigated in great detail for potential detrimental effect on mineral flotation is organic matter. This study investigates the effect of natural organic materials contained in water, such as humic, fulvic and tannic acids, on the flotation of copper and molybdenum sulphides in alkaline conditions and in …

Molybdenum Flotation Circuit and Flotation Cells With the steady increase of molybdenum demand worldwide and the favorable molybdenum market, many …

Abstract. Low flotation efficiency has been suffered in beneficiation of low-grade molybdenum ores due to finer size liberation and crystal anisotropy. As reported, polyethylene oxide (PEO) was proved to improve flotation efficiency of micro-fine molybdenite particles visibly. In this study, PEO was employed to investigate the …

1. Introduction. Froth flotation, a separation and concentration process based on the difference in the physicochemical properties of minerals to realize the selective separation of valuable minerals from gangue minerals, is deemed the most efficient and common recovery technology for most mineral resources [1], [2], [3].With the gradual …

Molybdenite is naturally floatable and can be separated from copper sulfide mineral using froth flotation. Properties of molybdenite such as mineralogy, microstructure, surface …

This study was designed to identify whether the dilution of process seawater in copper-molybdenum flotation plants benefits molybdenite flotation where NaHS is …

chambers. The collective copper–molybdenum flotation cycle included basic flotation, control flotationand three concentrate purifications. The crushed ore in the form of a pulp with a density of 30%–35% solid was stirred in a flotation machine with flotation agents for a certain agitation time. otor speed was 1150 revolutions per minute. The r

Molybdenum is a valuable mineral which could be found in porphyry copper deposits and molybdenum is the main mineral of molybdenite. According to our recent studies we have observed a new mineral of molybdenum …

Molybdenum is an essential metal used in high-strength steel alloys and other chemical applications (U.S. Geological Survey, 2018). To date, 95% of molybdenum production comes from molybdenite in porphyry Cu-Mo ores (John and Taylor, 2016). ... Flotation separation of chalcopyrite and molybdenite is an enormous challenge faced by …

Molybdenite, or molybdenum disulfide (MoS2), the primary ore mineral of molybdenum, is primarily recovered as a byproduct of the copper mining and concentration process. ... Sutulov A (1977) Flotation recovery of molybdenum. Can Metall Q 16:37–47. CrossRef CAS Google Scholar Shirley JF (1980) Byproduct molybdenite plant design. …