flotation of mixed copper oxide and sulphide minerals with

Contact Us: cdche@xinhaimining.net

Flotation of mixed copper oxide and sulphide minerals with xanthate ...

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. In the case of the Minto operation the...

Read More

Flotation of mixed copper oxide and sulphide minerals with xanthate ...

Dec 20, 2017 ... Request (PDF) | Flotation of mixed c... | Sherwood Copper's Minto Mine processes a high grade copper–gold deposit in Yukon, Canada. The ore mined is from a primary copper sulphide deposit with separate additional deposits of copper oxides. In conjunction with Ausmelt Chemicals, Minto is currently...

Read More

Flotation of mixed copper oxide and sulphide minerals ... - Axis House

copper sulphides present in the blend were bornite and chalcopyrite, while the oxides were malachite and minor azurite. 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...

Read More

an investigation of copper recovery from a sulphide oxide ore

As a result, research into the improvement of sulphide-oxide copper ores processing through the use of mixed collector systems has surged. The flotation of a natural porphyry copper ore with bornite and malachite was investigated via fundamental work with pure minerals and a bench-scale testing regime. The processing...

Read More

Flotation of Low-grade DongChuan Copper Oxide Ores ... - CiteSeerX

Sep 10, 2013 ... oxidized based metal ores and minerals [4]. The most effective reagent of hydroxamates is potassium n-octy hydroxamate (AM28). Lee et al. have reported that using AM28 in conjunction with traditional sulphide collectors can successfully recover copper sulphides and oxides simultaneously by flotation.

Read More

Flotation Test of a High Silica Copper Oxide Ore in Yunnan

Abstract—In this paper, the beneficiation of a copper oxide ore of Yunnan was investigated through bench-scale froth flotation tests. During the froth flotation, the conditions that effect on the flotation performance was researched, including the grinding fineness and the dosage of lime as depressant, sodium sulphide as...

Read More

Development and optimization of mixed sulphide/oxide copper ore ...

The Kansanshi Mine (First Quantum Minerals Ltd) treats a mixed sulphide/oxide copper-gold vein deposit. Until June 2009, the sulphide and oxide minerals were respectively recovered by the well established xanthate flotation of sulphides and acid leaching of soluble oxide copper. The mixed (transitional) sulphide/oxide...

Read More

Treatment of Mixed Sulfide Oxide Ores of Copper - 911 Metallurgist

Where the oxidized minerals in a mixed ore consist largely of the carbonates and cuprite, a filming treatment and “sulfidizing flotation” appears to offer the greatest advantage. Both sulfide and oxidized minerals are recovered in the same concentrate and sent to the...

Read More

Mixed copper sulfide and oxide - Froth Flotation (Sulphide & Oxide ...

Sulphides will always float faster than oxides. You float sulphides with PAX and them add your Hydroxamate to get oxides (add NaHS if your material responds to the sulfidiser). In a traditional way, sulphide and oxide copper minerals do not recover at the same rate. You typically handle their flotation in a sequential manner:...

Read More

Hydroxamate Collectors - 911 Metallurgist

Mar 17, 2017 ... Let me point you to two good papers on the flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors. A great detailed thesis called “An Investigation of Copper Recovery from a Sulphide-Oxide Ore with a Mixed Collector System” and one called “Flotation of mixed...

Read More

Copper Mining and Processing: Processing of Copper Ores ...

The most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and pyrometallurgy, respectively, due to the different chemistries of the ore. ... The slurry is placed in a tank and a process called froth floatation is used to separate the copper minerals from the gangue.

Read More

Froth flotation - Wikipedia

In 1897, the Elmore brothers installed the world's first industrial size commercial flotation process for mineral beneficiation at the Glasdir mine. The process was not froth flotation but used oil to agglomerate (make balls of) pulverised sulphides and buoy them to the surface, and was patented in 1898 with a description of the...

Read More

EFFECT OF GRINDING CHEMISTRY ON THE ... - ORBi

TRANSITIONAL OXIDE-SULPHIDE COPPER ORE ... the flotation process. To have a better understanding of the fundamental mechanisms, the system was simplified. Oxidised sulphide mineral and oxide mineral were studied .... The recovery of copper by sulphidisation and flotation from a mixed ore has been studied in.

Read More

EFFECT OF pH ON SURFACE CHARACTERISTICS AND ...

Jun 22, 2015 ... Abstract: The effect of pH on surface characteristic and flotation of sulfidized cerussite was studied by micro-flotation tests ... sulfidization flotation, since oxidized minerals after sulfide-treatment have ..... LEE K., ARCHIBALD D., MCLEAN J., REUTER M.A., 2009, Flotation of mixed copper oxide and sulphide...

Read More

Flotation of a Copper-Lead Sulfide-Oxide Ore:Using a Combined ...

Advances in Chemical, Material and Metallurgical Engineering: Flotation of a Copper-Lead Sulfide-Oxide Ore:Using a Combined Depressant for Galena and an Effective Activator D2 for Copper Oxide Minerals.

Read More

Minerals | Free Full-Text | Comparison of Adsorption of Phenol O-O ...

Feb 14, 2017 ... Leaching-solvent extraction-electrowinning (L-SX-EW) and froth flotation are the two methods to beneficiate these ores, of which froth flotation is more economic. Particularly for mixed copper sulfide and oxide ores (e.g., Minto Mine in Yukon, Canada) that are not amenable to L-SX-EW, the development of...

Read More

Academic Papers | Axis House

Download Flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors (Minerals Engineering). K. Lee a, D. Archibald b, J. McLean c, M.A. Reuter c,*. Download The Investigation of Chrysocolla and Malachite Flotation using Hydroxamates. G.A. Hope a*, A. Numprasanthai a, A.N....

Read More

Copper mining. From ore to copper. - School Science

Part of an interactive on-line booklet about copper mining explaining the early, physical stages in the process.

Read More

Enhanced sulfidation xanthate flotation of malachite using ... - Nature

Sulfidation xanthate flotation is the most widely used method for dealing with copper oxide ore9, 12, 13. Sodium sulfide can promote the flotability of oxide copper ore14, resulting in the considerable increase of research atten- tion12, 13. Oxide mineral surface has an ionic bond, such that the polarization of water molecules...

Read More

Copper Oxide Flotation using Collector Mixture of Benzohydroxamic ...

Beneficiation of copper oxide ore is one of the recognized puzzles in mineral processing industry, and it is also the important research field for dressing workers. Copper oxide ore is the vital component of copper resource in the world, which has abundant reserves. Majority of sulphide deposits have oxidized zone on the top...

Read More

Copper Oxide Flotation using Collector Mixture of Benzohydroxamic ...

Beneficiation of copper oxide ore is one of the recognized puzzles in mineral processing industry, and it is also the important research field for dressing workers. Copper oxide ore is the vital component of copper resource in the world, which has abundant reserves. Majority of sulphide deposits have oxidized zone on the top...

Read More

Sulphide Minerals: Surface Oxidation and Selectivity in ... - DiVA portal

Sulphide Minerals: Surface Oxidation and. Selectivity in Complex Sulphide Ore. Flotation. Doctoral thesis. Alireza Javadi Nooshabadi. Division of Minerals and Metallurgical Engineering ... In addition, the effect of mixed sulphide minerals, i.e., pyrite–chalcopyrite, pyrite– galena ...... covalent copper sulphide as shown in Fig.

Read More

Froth Flotation - Department of Chemical Engineering

separating sulfide minerals from silica gangue (and from other sulfide minerals); separating potassium chloride (sylvite) from ... (e) Enrichment Ratio. Table 1: Grade/recovery performance of a hypothetical copper ore flotation process. Product. % Weight. % Cu Assay. Feed. 100. 2.09. Concentrate. 10. 20.0. Tailings. 90. 0.1.

Read More

M.A. Reuter - Google Scholar Citations

Flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors. K Lee, D Archibald, J McLean, MA Reuter. Minerals Engineering 22 (4), 395-401, 2009. 115, 2009. Fundamental limits for the recycling of end-of-life vehicles. MA Reuter, A Van Schaik, O Ignatenko, GJ De Haan. Minerals...

Read More

Axis House - Mining Technology

Flotation of Mixed Copper Oxide and Sulphide Minerals with Hydroxamate Collectors. Many copper sulphide mines around the world have significant copper oxide ore reserves associated with the larger primary copper sulphide deposit. The traditional techniques for processing oxide ores, either by leaching - SX/EW or...

Read More

Copper Mining and Extraction Sulfide Ores

changes some of the CuFeS2 to copper oxide. removes some of the sulfur as sulfur dioxide. This is done by heating the concentrated ore from froth flotation. It is heated to between 500 °C and 700 °C in air. The product from the roaster is called calcine. It is a solid mixture of oxides, sulfides and sulfates. One reaction that...

Read More

Introduction to Mineral Processing - Chevron Phillips Chemical

Froth flotation is considered to be the most widely used method for ore beneficiation. In ore beneficiation, flotation is a process in which valuable minerals are separated from worthless material or other valuable minerals by inducing them to gather in and on the surface of a froth layer. Sulfide and non-sulfide minerals as well...

Read More

Flotation '11 - Minerals Engineering International

the mineralogy of a copper-sulphide ore. B. Albijanic ... 11.20 Investigation of boundary conditions and assumptions in modelling of mineral froth flotation. G. Wierink and K. Heiskanen (Aalto University, Finland) .... 14.40 Impacts of grinding media composition on the flotation of mixed oxides-sulphides copper ores.

Read More

surface analytical studies of oxidation and collector ... - eCM Journal

Oxidation and collector adsorption in sulfide mineral flotation. 553 ... (3) galvanic interactions between different sulfide minerals to produce different reaction products on the mineral surfaces;. (4) interaction between particles in the form of aggregates and .... not yet clear whether a specific copper sulfide phase is formed in...

Read More

The use of alkyl hydroxamates as collectors for oxide minerals in ...

with the surfaces of chrysocolla and other oxide copper minerals, as well as with the native oxide on copper metal. ... sulfide lode and left unprocessed as the sulfide ore is simpler to recover by conventional flotation procedures and thus, more attractive to the ..... mineral copper reacts with hydroxamate collector. 3.2 Copper...

Read More

Effect of pH on Pulp Potential and Sulphide Mineral Flotation

this study the effect of pH on potential in solution and sulphur minerals flotation is discussed with various ... tion systems is the mixed potential and it is some- .... tion, XRF analyses were performed. The results are shown in Table 1. Table 1. XRF analyses of sulphide minerals used. Sample. Metal %. Cu. Pb. Zn. Fe.

Read More

Handbook of Flotation Reagents: Chemistry, Theory and Practice ...

20.2.1 Oxide lead and zinc minerals of economic value 20.2.2 Flotation properties of oxide lead minerals 20.2.3 Flotation properties of oxide zinc minerals 20.3 Practices in the Beneficiation of Mixed and Oxide Lead Zinc Ores 20.3.1 Reagent scheme and plant practice for beneficiation of mixed sulphide oxide ores

Read More

optimisation of the froth flotation process of chingola ... - Unza

refractory oxides and sulphide copper minerals with an average grade of 1.37% total copper. (TCu) with the goal ... flotation procedure since all copper minerals respond differently to different flotation conditions. Further ...... Copper oxide mixed ore (Type 1) – the main copper minerals found in these ores include malachite...

Read More

EFFECTS OF EDTA ON SELECTIVE FLOTATION OF SULPHIDE ...

copper minerals (mainly chalcopyrite) hampers flotation selectivity. Galvanic interaction between the ... Oxidation of sulphide minerals is inevitable during processing in plant conditions. Every sulphide mineral is ... mineral, when mixed with other sulphide minerals in an ore, can be substantially different from that predicted...

Read More

Untitled

and zinc. The flow sheet consisted of flotation of sulfide minerals, deslim ing and sulphidization-flotation of oxide minerals. The corresponding reagent system and techniques to the ... than that for cerussite and the recovery of smithsonite flotation increases with the dosage of sodium sulfide at low ... Pb Zn Cu S Cd Fe Cao.

Read More

US3403020A - Leaching of copper from ores with cyanide and ...

Mixed sulfide-oxide ore; scavenger tails A scavenger flotation tailing (1.05%) Cu), containing chalcocite (Cn S), chalcopyrite, cuprite (Cu O), and other oxidized minerals was leached with crude calcium cyanide at a mole ratio of NaCN equivalent to contained copper of 3.1:1. After A hour the leach residue was separated...

Read More

Copper - Base Metals - Ore Reserves and Mineral Resources ...

Collahuasi (OP), 44.0, %Cu, %Cu. Oxide, Mixed and Secondary Sulphides (TCu)(5), Proved, 0.2, 43.9, 1.60, 0.80, 4, 352. Heap Leach, Probable, 20.3, 31.2, 0.77, 0.88, 156, 275. Total, 20.5, 75.2, 0.78, 0.83, 160, 626. Sulphide (TCu)(6), Proved, 315.4, 279.0, 0.99, 0.99, 3,123, 2,762. Flotation – direct feed, Probable, 1,224.1...

Read More

Kinetic Studies of Sulfide Mineral Oxidation and Xanthate Adsorption

Therefore, the combined use of DETA and SO2 leads to the inhibition of both the collectorless flotation and the adsorption of xanthate. The adsorption of xanthate on sulfide minerals is a mixed-potential mechanism, i.e., the anodic oxidation of xanthate requires a cathodic counterpart. Normally, the cathodic reaction is...

Read More

investigation into the sulphidation process of mineral and ...

May 1, 2016 ... the applicability of flotation to sulphide rich and oxidized copper sources both natural and man-made. The object of the research is the mine tailings of the Zhezkazgan concentrating mill (ZhCM) and the mixed copper ore deposits of Bozschakol. The technology of copper minerals' sulphidation is studied in...

Read More

Effect of desXinhai on the flotation of a complax copper ore from China

The complex copper oxide ore sample was taken from Deerni copper deposit, Qinghai Province of. China. ... The flotation of oxidized Cu minerals, is much more difficult than the flotation of corresponding sulfide minerals. Several factors may influence oxidized Cu ... The materials were then well mixed and divided into 1 kg.

Read More