OneMine | Flotation of Problematic Cu-Zn Ores in ÇBI (Turkey)
"In this paper, a case study from Çayeli Bakir Isletmeleri A.S. (Rize, Turkey) about the selective flotation of copper minerals from sphalerite is discussed. Çayeli Cu-Zn Sulfide Ore contains different ore types, such as yellow ore, clastic ore, bornite-clastic ore, bornite-yellow ore, and black ore. For some of these ore types, selective flotation of …Web
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OneMine | Molybdenite Flotation by Controlling Pulp Potential
"Molybdenite flotation at the Sarcheshmeh Copper Complex has been studied as a function of pulp potential controlled using two types of sodium sulfide (mineral and chemical origin). Air and either plant or laboratory nitrogen was used as a flotation carrier. Potential measurements were taken in the rougher cells as it was proved to be …Web
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OneMine | New Flotation Modifiers Used in Complex Ores …
Cyanide-free technology of complex copper-lead ores flotation may be improved through enlarged range of pH values, enhanced copper recovery into copper concentrates due to additional recovery of secondary copper sulfides, as well as through enhanced efficiency of lead sulfides depression in process of new flotation modifiers …Web
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OneMine | Thirty-Year Plant Practice of Sulphidisation
Since 1960, the Dongchuan Copper Mining Bureau, Yunnan Province, China, has treated copper oxidised ores by sulphidisation - flotation technique only to recover …Web
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Selective Flotation of Chalcopyrite and Pyrite from a Mixed Copper
A process that allows selective flotation separation of low Cu/S ratio minerals (chalcopyrite and pyrite) from high Cu/S ratio minerals (bornite and chalcocite) from a mixed copper mineral concentrate under controlled oxidative-reductive potential conditions has been developed. The process has been extensively tested on samples with varying …Web
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OneMine | Appraisal of the Jameson Flotation Cell for Recovery …
Jameson cell pilot plant trials were conducted in a number of areas in the Red Dome gold/copper flotation plant during 1991. The aim of testwork was to reduce the amount of cyanide soluble copper reporting in tailing to the gold leach plant, and hence reduce cyanide consumption. A number of these tests were conducted in parallel with …Web
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OneMine | Operating Flotation Cells of the KFM Series in the …
The flotation cell proved to be much more efficient than originally expected in the process description in the design phase,flotation of the copper-zinc ore from Novo-Shemur deposit (PJSC Svyatogor concentrator) in two KFM- 1400M cells recovers up to 65% of copper and 70% of zinc in a high-grade bulk copper-zinc concentrate containing …Web
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OneMine | Use Of Ozone In The Differential Flotation Of Bulk Copper
Differential flotation of bulk sulfide concentrates from Duluth gabbro into copper and nickel concentrates could be implemented by first destroying the hydrophobic coating with ozone and then by recovering the copper concentrate with a copper-selective collector. A number of parameters involved in the use of ozone, such as the sequence and the conditioning …Web
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OneMine | The Use of Diisobutyl Thiophosphinates in the Flotation …
"The purpose of the study is to study the feasibility of using sodium diisobutyl dithiophosphinate (DDP) to enhance the recovery of platinum group elements from low-grade refractory copper-nickel ores characterized by a portion of nickel and platinum group elements (PGEs) locked in the dominant sulfide mineral — pyrrhotite. These ore …Web
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OneMine | Increasing Final Concentrate Grade of the Sarcheshmeh Copper
The Sarcheshmeh copper complex flotation circuit of plant consists of two identical north and south sections where each includes four rougher (each bank consists of 14 cells), two cleaners (each bank consists of 8 cells), two recleaners (each bank consists of 2 cells), and two scavenger banks (each bank consists of 10 cells). The reduction of …Web
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OneMine | Applying Reagents Containing the Thioamide Group in …
"The problem of separation of copper minerals and arsenopyrite remains relevant because of environmental requirements. The selective action of reagents with the thioamide group (thioamides) is known in iron sulfide's flotation of pyrite and pyrrhotite. The aim of this study was to reduce the arsenic content in the copper concentrate when …Web
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OneMine | Uranium-Copper Mineralogical Characterization Of A Flotation
This study investigates the mode of occurrence of uranium in a copper concentrate from the Prominent Hill mine. Mineralogical and liberation studies of a high grade Cu concentrate (monthly composite) containing uranium (U) were undertaken using QEM-Scan in combination with QXRD and ICP-MS. The study aimed at determining in …Web
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OneMine | Characteristics of Modern Copper Flotation Circuits
This paper outlines the cell and ore floatability characteristics of each copper plant and provides a discussion on the differences between these plants. In general, …Web
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OneMine | Flotation Mass Loaded of Metals
The adsorpbing flotation technique for copper, arsenic (III, V), chromium removal of metals on pyrite mineral fines (suitable industrial by- product) is an effective process.Dissolved-air flotation was also apllied in the case of dolomite/lead aggregates removal. A fatty acid was used as a flotation surfactant. ... info@OneMine +1 303 …Web
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OneMine | Flotation Recovery of Copper from Calcium-Ferrite …
The objective of the flotation work was to maximise copper recovery and iron rejection from slags made in the process.The slags treated included a reduced low …Web
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OneMine | Flash Flotation Circuit Design Considerations
"The first SkimAir flash flotation cell was installed in Outokumpu's Hammaslahti Copper Concentrator in 1982 to prevent overgrinding of soft sulphides in the milling circuit. Since this first installation the popularity of the flash flotation has fluctuated depending on metal market conditions and regional preferences. Units have been …Web
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OneMine | Minimising Copper Activation of Iron Sulfide Minerals …
High flotation of iron sulfide minerals at high pH values in copper ores is mainly due to the activation of these minerals by copper species dissolved from copper sulfide minerals during grinding. Several methods have been tested to reduce this copper activation during grinding and therefore to depress iron sulfide flotation. They include …Web
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OneMine | Controlled-potential sulphidization and rougher-cleaner
Previous results have shown how con- trolled-potential sulphidization (CPS) can give improved metallurgy during rougher flo- tation of mixed oxide-sulphide copper ores. …Web
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OneMine | Acidic Pretreatment of Hard-to-treat Copper Ore Flotation
Unique mineralogical and petrological properties of black shale in the copper ore deposit of the Foresudetic Monocline (SW Poland) resulting from three lithological layers have been described in terms of its unfavorable behavior in the ore processing circuits. A concept of processing of a part of the black shale fraction from the flotation circuit of the …Web
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OneMine | A Methodology for Measuring the Floatability of Ores û …
The methodology involves detailed flotation plant campaigns which require large quantities of data to fit models that can be used in JKSimFloat (a steady state simulator for the flotation process). The methodology to date, although widely accepted as the best flotation optimisation technology available, is limited to existing circuit ...Web
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OneMine | Hydrometallurgical processing for recovery of base …
Metallurgical treatments of sulfide ores containing copper and zinc are characterized by significant losses of base metals, particularly formation of the flotation tailings and slags during the dressing and pyrometallurgical treatment respectively. In addition, SO2 gas obtained during roasting and converting may be as raw material for …Web
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OneMine | The Role of Soluble Sodium Silicate for Enhancing Flotation
Sodium silicate(s), also known as "water glass", are one of the oldest and most widely used industrial chemicals. Its first use in North American mining operations can be traced back to around 1925, which coincided with early use of xanthates in mineral flotation. Silicate functions as a sulphide and non-sulphide gangue mineral dispersant, depressant …Web
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OneMine | Differential Flotation of Copper-Zinc at Prieska Copper …
The differential flotation process finally worked out involves a comparatively coarse grind, flotation of the copper at near-neutral pH with the use of a zinc-cyande sphalerite depressant, followed by flotation of the reactivated sphalerite. This procedure has had such success that the construction of a full-scale plant is proceeding with ...Web
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OneMine | A Multidisciplinary Approach to the Optimisation and …
"Cayeli Bakir Isletmeleri is an underground copper-zinc mine in turkey. The ore is highly variable with feed grades ranging from 1–4 per cent copper and 1–10 per cent zinc. Due to this variability, ore characterisation and blending strategies are crucial for performance optimisation.This paper presents a case study for a multidisciplinary …Web
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OneMine | Characteristics of Modern Copper Flotation Circuits
As part of the Australian Mineral Industries Research Association (AMIRA) P9 project, methods of characterising both the ore and the machines in flotation circuits have matured considerably over the past 15 years. Machine characteristics include gas dispersion measurements, such as bubble size, gas hold-up and superficial gas velocity. Ores can …Web
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OneMine | Application of Phosphorus Containing Reagent at Flotation …
The phosphorus-containing reagent has been obtained by interaction of the anabasine base, sulfur and dimethyl phosphite, due to sulfur and nitrogen atoms it can form complex compounds with heavy metal ions.Studying flotation of copper-sulfide ore of the Sayak field with the use of the phosphorus-containing reagent-collector anabasinium has …Web
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OneMine | Benchmarking Performance of the Two-Stage …
The results from on-site pilot scale work conducted on typical copper concentrator rougher flotation feed showed retention time gains on the order of 6 to 9 times when compared with conventional flotation equipment. This finding has the potential of reducing capital demands for rougher flotation circuit designs when incorporating the …Web
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OneMine | Grinding Chemistry and its Impact on Copper Flotation
Grinding with an electrochemically inert grinding media (i.e. high chrome white iron, or Magotteaux's Duromax® alloys) shifts the pulp potentials to more oxidising conditions, increases the dissolved oxygen content and reduces the EDTA extractable iron concentration when compared with milling with electrochemically active grinding media …Web
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OneMine | Selectively Depress Copper-Activated Pyrite in Copper
Pyrite depression in the flotation of copper ores is difficult due to the activation of Cu2+ ions on pyrite surface. In this study, the radical chain reaction involving the redox cycling of Cu(I/II) induced by sodium metabisulphite (MBS) was exploited to selectively depress the flotation of copper-activated pyrite at pH 8.0. Electrochemical …Web
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OneMine | Flotation of a Porphyry Copper Ore with Cellulose …
The present work showcases a study on the impact on flotation performance of cellulose surfactant derivatives and their mixtures with commercial frothers. Bubble size and property measurements were run in a two-phase system along with laboratory-scale flotation experiments conducted using a porphyry copper ore from a mine in Finland.Web
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