In this work, the prediction and optimisation of copper flotation has been conducted in the rougher flotation circuit. The copper-recovery prediction involved the application of support vector machine (SVM), Gaussian process regression (GPR), multi-layer perceptron artificial neural network (ANN), linear regression (LR), and random …
A combined process of flotation and high-gradient magnetic separation was proposed to utilize Yulong complex copper oxide ore. The effects of particle size, activators, Na2S dosage, LA (a mixture ...
Therefore, this study uses a new combination of flotation and metallurgical processes to recycle complex copper oxide. According to the ore characteristics, a …
While, hydroxamates show the unsatisfactory selectivity against Ca/Fe-bearing gangue minerals [3,27], and xanthates suffer from the surface-sulfidized species of oxide copper minerals despite sulfidization xanthate approach has become a common technique for flotation recovery of copper, lead or zinc oxide minerals [[28], [29], [30], …
Highlights • A novel surfactant phenylethyl hydroxamic acid (BEHA) eliminates the sulfidation step and reduces environmental pollution in sulfide flotation. • …
In this paper, we have reviewed the surface properties of common copper oxide minerals and summarized application of direct flotation, sulfidization flotation, and activation flotation in recovery of copper oxide minerals.
The recovery of these copper minerals by flotation or hydrometallurgy from ores, typically containing 0.5%TCu (open pit mines) and 1-2%TCu (underground mines) is of great commercial importance.
From previous flotation investigations of mixed copper oxide and sulphide minerals using xanthate and hydroxamate collectors it was hard to distinguish the impact of the alkyl hydroxamate collector on sulphide recovery as the sulphide and oxide minerals occurred naturally together.
The blend of ore units in various ratios affects the efficiency of the process by decrementing the recovery and mass pull due to copper oxide-sulphate in the ore Madnueli V. HSC Chemistry® software was used to simulate the metallurgical response of blended ores based on mineral compositions of the ores, Klimpel kinetic rectangular …
This study is focused on the froth flotation reprocessing of a copper mineral from flotation tailings. The effects of flotation parameters including pulp density, collector dosage, frother dosage ...
Tangdan copper oxide ore deposit, located in the northeast Yunnan province of China, is the largest independent copper oxide deposit in China. The ore from the deposit is characterized by low grade, high oxidation ratio and fine-grained dissemination, which results in the poor flotation recovery.
RECOVERY OF COPPER FROM OXIDE COPPER ORE BY FLOTATION AND LEACHING Kiraz, Emirhan M.S., Department of Mining Engineering Supervisor: Prof. Dr. Mustafa Ümit Atalay December 2014, 65 pages The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H 2 SO 4) leaching.
AbstractA combined process of flotation and high-gradient magnetic separation was proposed to utilize Yulong complex copper oxide ore. The effects of particle size, activators, Na2S dosage, LA (a mixture of ammonium sulfate and ethylenediamine) dosage, activating time, collectors, COC (a combination collector of modified hydroxyl oxime acid …
Malachite is a representative copper oxide mineral, and its direct flotation using the xanthate method is challenging in industrial settings. Therefore, the selection of activators becomes pivotal for malachite enrichment.
The flotation behavior of mixed copper ore during selective copper flotation was investigated using a geometallurgical approach. To this end, samples were taken from a production block at the Ouansimi copper deposit and subjected to laboratory batch kinetics tests...
The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H2SO4) leaching. The ore with 4.21% copper grade used in this study was ...
Copper Oxide Ore by Flotation and Metallurgical Processing ... is effective for refractory copper oxide recovery and is the main development direction for this sorting technology. Copper oxide ore from Zambia, Africa, has a high proportion of oxidation. Moreover, the propor-
Flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors ... The overall copper recovery by flotation is understated in this case because the mineralogical examination found copper bearing goethite minerals which are not amenable to flotation (Lee et al., 1998). ...
The batch flotation results indicated that the copper oxide flotation recovery increased from 79.67% to 83.38%, and the grade also raised from 18.08% to 18.14% after using …
The increase in solids recovery after the introduction of NaHS, whether by slug sulphidisation or CPS, can be partially attributed to the recovery of oxide minerals which were not recovered during flotation with SIBX only. The grade-recovery results are summarised in Fig. 2. In the case of slug sulphidisation, Cu recovery increased with ...
A copper–molybdenum iso-flotability flotation process has been developed to efficiently improve the recovery of molybdenite from Duobaoshan porphyry C…
While, hydroxamates show the unsatisfactory selectivity against Ca/Fe-bearing gangue minerals [3, 27], and xanthates suffer from the surface-sulfidized species of oxide copper minerals despite sulfidization xanthate approach has become a common technique for flotation recovery of copper, lead or zinc oxide minerals [[28], [29], [30], …
Ion flotation is an efficient separation technique for the recovery of metal ions from dilute aqueous solutions. Provided that both the collected metal and the surfactant are recovered from the phase, it could be considered as an alternative to ion exchange, adsorption or solvent extraction in hydrometallurgy. However, most studies …
A new method, staged flotation for effectively increasing the recovery of ultra-fine copper oxide ore with a new type of collector (ZH-1, C3-5 carbon chain xanthate) is proposed for the first time. The flotation process and mechanism were examined by
The results showed that 74.08% Cu was recovered by flotation, while the average grade of the copper concentrates was 21.68%. Another 17.34% Cu was further …
A new method, staged flotation for effectively increasing the recovery of ultra-fine copper oxide ore with a new type of collector (ZH-1, C3-5 carbon chain …
The presence of thiosulphate ions in the water used for oxidized ore flotation has shown significant influence on copper and cobalt recovery. At high thiosulphate concentrations a decrease in the concentrate mass pull could be assumed. Reusing process water has thus induced decrease in copper and cobalt recovery.
Results of size-by-size recovery analysis showed that the highest sulfide copper loss occurred in coarse particles (>74 µm) and the highest oxide copper loss happened in fine particles (<9 µm). From batch flotation experiments, it was found that the ultimate recovery increased to a certain value with increasing the collector dosage (50 …
Copper oxide is an important source of copper that is found in the aerobic regions of copper sulfide deposits. The common method of copper oxide flotation …
If the idea is try to recover, by flotation, copper oxides that are located in the upper part of the deposit. According to geology department the main copper oxide minerals are chrysocolla and atacamite.