آخرین محصولات
Recent Progress on Research of Molybdenite Flotation: A …
Molybdenite is naturally floatable and can be separated from copper sulfide mineral using froth flotation. Properties of molybdenite such as mineralogy, microstructure, surface …
Depression effect of pseudo glycolythiourea acid in flotation …
The copper recovery was improved by about 3.2% with dextrin at 200 g/t. LING [13] studied the flotation process of certain molybdenum ore with a new depressant BK510. The grade and recovery of molybdenum in molybdenum concentrate were 51.07% and 89.09% with the depressant at 30 g/t.
A Review of Recent Advances in Depression Techniques for …
The separation/recovery of copper and molybdenum from these deposits is typically processed by a flotation series, that is, bulk flotation to remove gangue minerals and …
Estimation of Copper and Molybdenum Grades and …
25 E. Allahkarami et al. In this research, the best structure and geometry of the ANN model 10-10-10-4 (Figure 3), which adequately recognized the effects of different operational conditions and feed characteristics on the flotation process, can predict copper and molybdenum grades and their recoveries. 4.
Recent progress on research of molybdenite …
rougher flotation process to recover molybdenite before it is contaminated with collectors. ... copper/molybdenum separation stage si nce the cleaner concentrate was uncontaminated with thiol .
Improving the Copper-Molybdenum Ores …
The search for effective reagents for the flotation of non-ferrous metals from mineral raw materials is an actual problem. The article discusses the results of research on improving the technology of …
New Flotation Reagents for Copper–Molybdenum Ore
treated with a bulk flotation process followed by copper–molybdenum separation to produce molybdenum concentrate and copper concentrate (Sun et al., 2013). Generally, during the copper-molybdenum bulk flotation process, we add a large amount of lime to depress pyrite and ensure the production of high-grade copper–molybdenum bulk …
A study of mechanisms affecting molybdenite recovery in a bulk copper
The quality of recycled process water is an important issue in the flotation of Cu–Mo ores. Processing of Cu–Mo ores includes two steps: a bulk flotation where molybdenite is recovered together with Cu sulfides, and a subsequent selective flotation step where molybdenite is separated from depressed copper sulfides.
Operational optimization of copper flotation process based …
The results of data experiments on the real-world copper flotation process show that the proposed methods are effective and can be applied to column cleaning processes. 7. Further Investigation. The problem of operational optimization for complex industrial processes is addressed in this paper, and the effectiveness and feasibility of …
A process mineralogy approach to optimize molybdenite flotation …
Journal Article: A process mineralogy approach to optimize molybdenite flotation in copper – molybdenum processing plants ... Process mineralogy as a key factor affecting the flotation kinetics of copper sulfide minerals. Bahrami, Ataallah; Mirmohammadi, Mirsaleh; Ghorbani, Yousef;
Copper Removal from Molybdenite by Sulfidation-Leaching Process …
Molybdenite (MoS 2) concentrates are produced by differential flotation from bulk copper-molybdenum concentrates.However, complete separation of molybdenum by flotation is very difficult, thus, molybdenum concentrates produced by this route requires a further step of chemical purification in order to reduce the copper content to a suitable level for …
A process mineralogy approach to optimize molybdenite flotation …
The efficiency of grinding and flotation process in copper-molybdenum processing circuit, largely affected by performance of thickeners and hydrocyclones devices. The goal of this paper is to ...
Effect of clay slimes on copper, molybdenum flotation from porphyry
The coating of clay minerals not only depresses the mineral flotation but also reduces the concentrate grade (Chen & Peng, 2018). In addition, the coating of fine particles increases the ...
(PDF) Recovery of molybdenum and copper from porphyry …
A copper–molybdenum iso-flotability flotation process has been developed to efficiently improve the recovery of molybdenite from Duobaoshan porphyry Cu–Mo ores.
Molybdenum Ore Beneficiation Process Technology
The beneficiation process of molybdenum ore is mainly performed by flotation separation methods, and the recovered molybdenum mineral is molybdenite(MoS2).Sometimes in order to improve the quality of molybdenum concentrate and remove impurities, the concentrated molybdenite would be subjected to a further …
A process mineralogy approach to optimize molybdenite …
The Sungun copper-molybdenum operation in Iran uses a typical copper-molybdenum flowsheet to produce separate copper and molybdenum concentrates …
Copper–molybdenum ores flotation in sea water: …
Enhanced mixed flotation of copper–molybdenum ore using dodecyl dimethyl betaine-emulsified kerosene as environmentally friendly collector. 2024, Journal of Cleaner Production ... Negative effects of the presence of clays on the flotation process include modification of the rheology of slurries, changes in the hydrodynamics of the …
Molybdenite flotation from copper/molybdenum …
Abstract. Typically, rougher molybdenite flotation and recovery from bulk copper/molybdenum concentrates involves the use of alkalisulfides, Nokes reagents, …
Estimated Water Requirements for the Conventional …
Copper sulfide ores must be concentrated before they can be economically transported to a smelter. Froth flotation is part of a copper beneficiation process in which finely ground ore is placed in aerated tanks that contain a water-based solution from which a copper-sulfide-rich froth is recovered
Enhanced mixed flotation of copper–molybdenum ore …
The beneficiation processes of porphyry copper–molybdenum ores include mixed, preferential, and iso–flotability flotation process. Because of its mature technology and good indicators, mixed flotation is widely used for the treatment of copper-molybdenum ores. However, research on the remaining two processes is still ongoing.
A process mineralogy approach to optimize molybdenite flotation …
DOI: 10.1016/j.mineng.2020.106557 Corpus ID: 224911691; A process mineralogy approach to optimize molybdenite flotation in copper – molybdenum processing plants @article{Abdollahi2020APM, title={A process mineralogy approach to optimize molybdenite flotation in copper – molybdenum processing plants}, author={Morteza Abdollahi and …
A process mineralogy approach to optimize molybdenite flotation …
One of the challenges for the flotation of copper-molybdenum ores is the presence of copper sulphide minerals in molybdenum concentrate. Small grains of chalcopyrite (smaller than 50 μm), as well as pyrite, are the major impurities in the molybdenum concentrate. ... optimum particle size for the flotation process feed, …
Recent progress on research of molybdenite flotation: A review
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]
A Review of Recent Advances in Depression Techniques for Flotation …
Porphyry copper deposits (PCDs) are some of the most important sources of copper (Cu) and molybdenum (Mo). Typically, the separation and recovery of chalcopyrite (CuFeS2) and molybdenite (MoS2), the major Cu and Mo minerals, respectively, in PCDs are achieved by two-step flotation involving (1) bulk flotation to separate Cu–Mo …
Analysis of the reasons for molybdenite losses and …
The poor molybdenite flotation behavior in high-calcium water is mainly caused by the fact that Ca 2+ ions can inhibit the adsorption effect of hydrocarbon oils on the molybdenite surface.
Depression effect of pseudo glycolythiourea acid in flotation
These flotation results demonstrate that Na 2 S 2 O 5 treatment in seawater selectively depresses the floatability of copper minerals. Consequently, molybdenum can be separated from copper minerals under a weakly acidic condition in seawater. In addition, this study discusses the effects of various pH conditions and dosages of Na 2 S 2 O 5.
Investigation of effective parameters for molybdenite …
The Sarcheshmeh copper mine is a significant copper and molybdenum producer. Sampling of the Sarcheshmeh flotation circuit (in a six-month period) showed that a large share of waste of molybdenite ...
Molybdenum Flotation Process
1. Crushing: The molybdenum ore is coarsely crushed by the jaw crusher, and then crushed to a reasonable particle size by the fine jaw crusher. 2. Grinding: The feeder is evenly fed into the ball mill, and the ore is …
Nitrogen Gas Molybdenum Flotation from Copper …
The copper concentrator produces 1050 mt/day of bulk Cu-Mo concentrate averaging 27% Cu and 0.6% Mo. Molybdenum plant feed is thickened to 62% solids and stored in two 150 cubic meter tanks. Two identical flotation circuits are fed from a constant head tank through changeable orifice plates thus maintaining steady feed rates.
Improving the Copper-Molybdenum Ores Flotation …
The cycle of collective copper–molybdenum flotation includes the main flotation, control flotation, and three re-cleanings of concentrate. In the basic mode, …
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