COLLECTORLESS FLOTATION OF SULPHIDE MINERALS ...

The plant-scale collectorless flotation of copper sulfide ore was carried out in 1989.The grade and recovery of copper concentrate were similar to those of collector-induced flotation.The collectorless flotation(CLF)is divided into three types according to mineral structures ...

Flotation of sulfide minerals

3. The process of claim 2 wherein the sulfide mineral is copper sulfide and the polyglycerol comprises, for each 100 parts by weight thereof, from about 55 to 80 parts by weight of a mixture of glycerol, diglyerol, triglycerol, tetraglycerol, and pentaglycerol, with the glycerol being present in an amount no greater than about 15 parts by ...

Recovering Moly from Copper Oxide and Sulfide

2021-9-16 · The copper recovery is by standard flotation reagents identified in the description of the copper mineral flotation. The naturally float molybdenum with copper but can be congested in the foam by the mineralization of copper and molybdenum collector use (such as diesel oil, kerosene, refined oils, pine oil or xanthate ester) improves its buoyancy.

Coarse-particle flotation applied to copper sulfide ores

2020-12-9 · Coarse-particle flotation applied to copper sulfide ores . J. Concha1, E Wasmund2, M. Mankosa3. 1. Deputy Managing Director, Eriez Flotation Division Peru, ... However, it is known that, for sulfide minerals, the best recoveries are usually obtained when conventional flotation cells process particle sizes in the ranges of 30 µm to 150 µm. In ...

Flotation of mixed oxide sulphide copper-cobalt minerals ...

2019-11-22 · sulphide cobalt-bearing copper minerals occur together, efficient recovery of copper and cobalt is known to be extremely difficult. This study investigates the flotation behaviour of a mixed oxide-sulphide ore where copper is hosted in sulphides phases such as bornite, chalcopyrite and chalcocite, and oxide phases such as malachite and

copper flotation

2021-3-26 · The sulphide flotation process is generally adopted in the mixed copper ore beneficiation, which mainly has two kinds: first, separate the copper sulfide minerals first, and then separate the copper oxide minerals after the tailings sulfidation. Second, float the copper oxide and copper sulfide at the same time after the sulphidation.

Starch chemical modification for selective flotation of ...

2020-9-1 · These copper minerals have different surface electronic structures and therefore exhibit different mineral surface properties critical to flotation (Acres et.al., 2010). It should be highlighted that chalcopyrite is an extremely important copper-bearing sulphide regarded as the principal industrial source of copper metal ( Buckley and Woods ...

(PDF) A Review of the Flotation of Copper Minerals

Sulphide ores are the major sources of base metals like Copper, Lead, Zinc, Nickel and Cobalt. Beneficiation of. these base metal sulphide minerals is predominantl y through …

Flotation performance, structure–activity relationship and ...

2021-6-15 · 1. Introduction. Copper is an extremely useful industrial metal and at present, the most important source of copper is the copper sulfide ores,,,, .The copper grade in nature copper sulfide ores is low, and froth flotation has been widely applied to separate copper sulfides from its gangues to obtain high-grade copper concentrate for further processing, .

Mining Industry | Copper Sulfide Ore and Flotation Process ...

2019-7-9 · 1 Types of copper sulfide ore (1) Single copper mineral Its ore characteristic is relatively simple, and the only useful component that can be recycled is copper. The gangue minerals are mainly quartz, carbonate and silicate. (2) Copper-sulfur ore Called copper-bearing pyrite. In addition to copper minerals, iron sulfide can be recovered, and the main mineral of sulfur is pyrite.

The effect of surface oxidation of copper sulfide minerals ...

2011-12-1 · The collectorless flotation of copper sulfide minerals is attributed to polysulfides on the surface as a result of mild surface oxidation (Lekki and Drzymala, 1990, Ekmekçi and Demirel, 1997). Metal hydroxides on the mineral surface decrease the flotation of copper sulfide minerals even in the presence of collector (Senior and Trahar, 1991).

Effect of Desliming on Flotation Response of Kansanshi ...

The Kansanshi mixed copper sulfide-oxide ore contains significant proportions of fine material manifesting in a variety of processing challenges. This paper presents the work which was carried out to evaluate the efficacy of desliming in improving the flotation response of the ore. Two modes of desliming were investigated, namely; sieving and elutriation after which the deslimed material was ...

Molecular modelling and synthesis of a new collector O ...

Molecular modelling and synthesis of a new collector O-butyl S-(1-chloroethyl)carbonodithioate for copper sulfide ore and its flotation behavior. Xiaopeng Chi * abc, Yunshan Guo abc, Shuiping Zhong a, Guoyao Li a and Xulong Lv d a State Key Laboratory of Comprehensive Utilization of Low-Grade Refractory Gold Ores, Zijin Mining Group Co.,Ltd., Shanghang, 364200, China.

Copper minerals flotation in flotation plant of the ...

2019-12-31 · Copper minerals flotation cycle is especially sensitive to selectivity and sometimes there is a higher content of lead and zinc minerals present in copper concentrate which is penalized. In this paper laboratory research results of lowering galena and zinc content in copper concentrate possibility due to extended time of cleaning are shown.

12.3: FLOTATION PROPERTIES OF INDIVIDUAL COPPER …

2021-8-23 · In most copper sulfide deposits, chalcopyrite is the primary copper mineral, while in a large majority of porphyry copper ores, chalcopyrite is a secondary copper mineral. In some cases, chalcopyrite is also present with bornite and covellite. Chalcopyrite from coarse-grained sulfide ores floats readily with xanthate collector in a pH region 5 ...

Copper Sulfide Flotation

2016-4-13 · Copper Sulfide Flotation Circuit. Beneficiation of Copper Sulfide by Flotation. Copper, due to the present world demand and price, is of foremost interest to the …

Flotation of a copper sulphide ore from Okiep using thiol ...

2009-8-26 · Flotation of a copper sulphide ore from Okiep using thiol collectors and their mixtures The Journal of The South African Institute of Mining and Metallurgy VOLUME 105 NON-REFEREED PAPER MARCH 2005 201 Figure 1—The final cumulative copper recovery vs. collector dosage obtained with C2-X, di-C2-DTP and di-C2-DTC in the flotation of the Okiep copper ore

Mineralogical characterization of copper sulfide tailings ...

2020-2-18 · 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) integrated with scanning electron microscopy–energy ...

floatation of copper sulphide ore

Flotation of mixed copper oxide and sulphide . Copper oxide ores Copper sulphide ores Flotation collectors Mineral processing Alkyl hydroxamates abstract Sherwood Coppers Minto Mine processes a high grade coppergold deposit in Yukon, Canada. The ore mined is from a primary copper sulphide deposit with separate additional deposits of copper oxides.

Current Situation on Flotation of Cu-Pb-Zn Sulfide Ore

Current Situation on Flotation of Cu-Pb-Zn Sulfide Ore Jian-Tao Lang1, Si-Qing Liu2,*, Xu Dong3,Yi Pei4 1,2,3,4 Kunming University of Science and Technology, Kunming City, Yunnan Province, China *[email protected] Keywords: Copper-lead-zinc sulfide ore, Flotation process, Separation of bulk concentrate, Flotation column Abstract. In the flotation of copper - lead - zinc polymetallic sulfide ...

COPPER Copper production

2008-12-16 · Flotation of non-sulfide copper minerals is rare because these ores are mostly subjected to hydrometallurgical copper recovery, for example, heap leaching. In Zambia and Zaire, however, siliceous copper oxide ores are floated with fatty acid collectors, and dolomitic copper oxide ores are sulfidized with sodium hydrogensulfide and then floated ...

The effect of surface oxidation of copper sulfide minerals ...

Copper Sulfide Flotation - Mineral Processing & Metallurgy

Enhancing flotation separation of chalcopyrite and ...

2021-3-18 · As for the talc type Copper-Nickel Sulfide Ores, the talc entrained in flotation concentrate with foam will affect the grade of copper sulfide ore, so gum Arabic (GA) is a good depressant to ...

Surface properties of copper-sulfide minerals with sodium ...

2020-9-1 · A Chilean copper ore sample that contained chalcocite, bornite, and chalcopyrite was used in the rougher flotation tests. The mineral composition of the samples that was analyzed using a Mineral Liberation Analyser (MLA 650, FEI) is shown in Table 2, Table 3.The copper grade was 1.01%, and the sample contained bornite, chalcopyrite, and chalcocite as copper-sulfide minerals and calcite ...

GALVANIC INTERACTIONS OF SULFIDE MINERALS IN …

2010-9-13 · Galvanic interactions of sulfide minerals in leaching of flotation concentrate 25 Table 1. Mineralogical composition of the copper flotation concentrates at the KGHM concentrators (mean values for 2007-2008, Łuszczkiewicz, 2009) Concentrator mean data 2007-2008 Bornite Chalcocite, digenite Chalco-pyrite Pyrite, marcasite Covellite Sphalerite

Process mineralogy as a key factor affecting the flotation ...

2018-5-10 · The aim of this study is to apply process mineralogy as a practical tool for further understanding and predicting the flotation kinetics of the copper sulfide minerals. The minerals'' composition and association, grain distribution, and liberation within the ore samples were analyzed in the feed, concentrate, and the tailings of the flotation processes with two pulp densities of 25wt% and …

EFFECTS OF EDTA ON SELECTIVE FLOTATION OF …

2004-10-13 · Key words: flotation, sulphide minerals, activation, EDTA INTRODUCTION Oxidation of sulphide minerals is inevitable during processing in plant conditions. Every sulphide mineral is influenced at different degrees of oxidation by its chemical composition, crystal structure and most important its electrochemical reactivity (Ekmekçi et al. 2003).

FLOTATION OF COPPER-NICKEL SULFIDE ORES

FLOTATION OF COPPER-NICKEL SULFIDE ORES. United States Patent 3667690. Abstract: Flotation of sulphide minerals from their ores is achieved by a process in which two or more conditioning steps are carried out prior to a froth flotation step. The first step comprises conditioning a pulp of the ore in the presence of at least one alkaline agent ...

and Depressed Copper Sulfide Minerals

Mixed Copper Sulfide Minerals Ore Sample for Mixture Mineral Flotation Tests A Chilean copper ore sample that contained chalcocite, bornite, and chalcopyrite was used in ... Copper-Sulfide ...

6-Hexyl-1,2,4,5-tetrazinane-3-thione: Flotation ...

2020-6-15 · While their flotation performance to sulfide minerals has been rarely reported. In this paper, 6-hexyl-1,2,4,5-tetrazinane-3-thione (HTT) was recommended as a collector for flotation of copper sulfide mineral. Its flotation response to chalcopyrite and pyrite was …

AN INVESTIGATION OF COPPER RECOVERY FROM A …

2010-1-19 · Current copper deposits contain significant amounts of secondary non-sulphide minerals and newly discovered deposits are increasingly complex. 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 ...

Method of flotation of sulfide copper-zinc ores

(57) Abstract: Usage: mineral processing, in particular flotation of copper-zinc sulphide ores and products. Method of flotation of sulfide copper-zinc ores includes the conditioning of the pulp in a calcareous environment with reagents-regulators sulfur, sodium, and zinc sulfate, the introduction of collector and Frother and subsequent separation with separation of copper minerals in the ...

RECOVERY OF COPPER FROM OXIDE COPPER ORE BY …

2014-12-24 · main copper minerals in the test sample. Quartz, calcite, illite, chlorite, and plagioclase were determined as the main gangue minerals of the sample. The mesh of grind size of copper minerals was determined as 75 microns after examination of ground particles under microscope. During the flotation tests; the effects of type and

DE-ZINCING OF LEAD-COPPER SULPHIDE MINERALS …

DE-ZINCING OF LEAD-COPPER SULPHIDE MINERALS FLOTATION NGURAH ARDHA R & D Centre for Mineral and Coal Technology Jalan Jenderal Sudirman 623 Bandung 40211, Ph. 022 6030483, fax. 022 6003373 e-mail: [email protected] ABSTRACT Typical lead-copper-zinc sulphide minerals were found hard to be separated selectively by froth flotation in