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bulk flotation of complex copper ore

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(PDF) BULK FLOTATION OF COMPLEX COPPER ORE | Khmer …

The complexity of the ore leads to certain ways of treating it by the use of sequential flotation in which copper and zinc are floated in series of operation that may involve a bulk flotation of copper and zinc feeding it to another circuit of copper and zinc separation in order to produce both marketable value of copper and zinc concentrate (Bulatovic, 2007).

BULK FLOTATION OF COMPLEX COPPER ORE - Flotacao - 2

III METHODOLOGY 17 3.1 Sample Preparation 17 3.2 Bulk Flotation 17 3.3 Reagents 18 3.4 Chemical Analysis 19 3.5 Microscopy 19 3.6 Recovery Calculations 20 3.7 Experimental Design and Statistical Methods of Analysis 21 viii PAGE IV RESULTS AND DISCUSSION 22 4.1 Ore Characterization 22 4.2 Flotation Results of Copper, Zinc, and Arsenic 26 V CONCLUSIONS AND RECOMMENDATIONS …

A study of the flotation characteristics of a complex ...

implementation of a new selective collector for copper sulphide ore at FQML, Kansanshi mine. Proceedings of the 6th International Flotation Conference (Flotation ’13). 18-21 November 2013. Cape Town. Kalichini, M., orin, K.., O’onnor .T. & Simukanga, S. (2014). A study of the flotation characteristics of a complex copper ore.

Flotation of Copper-Lead-Zinc Ores - ResearchGate

In the flotation of copper–zinc massive sulfide ores, the flotation properties of copper and zinc are determined by the nature and composition of the ore. Selectivity between chalcopyrite and...

Flotation experiment research on a polymetallic sulfide …

PH ADJUSTMENT TEST OF COPPER/LEAD BULK FLOTATION The flotation of the polymetallic sulfide ore of copper, lead, and zinc is generally suitable at alkaline pH conditions. Lime and soda are common agents used in adjusting the pH of the slurry. These agents were used and the effects of

Improvement of copper–molybdenum ore beneficiation …

Jan 01, 2013 Thus, the investigations performed have demonstrated that the middlings from bulk flotation cycle of copper–molybdenum ores are characterized by higher content of secondary sulfide and oxidized copper minerals (57.1%), higher content of pyrite (18.3%), lower content of carbonaceous rock-forming minerals (up to 0.8%) and a significant part of aggregates (up to 28%), including locked …

The Effect of Oxidation on the Flotation Behaviour of ...

In this paper, the flotation behaviour of nickel-copper ores processed in the Sudbury area is discusse~ with emphasis on the effect of oxidation on individual minerals, pnmarily pyrrhOlite. In general, moderate oxidation of a freshly ground ore promotes the flotability of all principal sulphides in the ore leading to a bulk flotation concentrate.

EVALUATION OF ORGANIC CARBON SEPARATION …

The presence of shale, the source of carbonaceous matter in the ore, has also a negative effect on flotation and pyrometallurgical processes. The presence of clay minerals and organic carbon in shale makes the production of high quality flotation concentrates, without excessive loss of copper and other metals in the flotation tailing, difficult.

(PDF) Beneficiation of Copper, Lead and Zinc Concentrates ...

Complex ores including copper -lead-zinc are usually subjected to two stage separation processes, producing in the first stage a copper -lead bulk concentrate – most readily floatable minerals,...

bulk flotation of complex copper ore

Pdf Flotation Characteristics Of A Complex Copper Ore A. Flotation of copper gold ores for the bulk otation of copper minerals and gold from supergene copper ores it is normal practice to add a xanthate as the primary collector and dithiophosphate as a secondary …

Flotation of Copper-Lead-Zinc Ores - ResearchGate

In the flotation of copper–zinc massive sulfide ores, the flotation properties of copper and zinc are determined by the nature and composition of the ore. Selectivity between chalcopyrite and...

Study on the Bulk Flotation of a Low Grade Copper ...

Based on the analysis of the properties of the copper-molybdenum ore from Yunnan province, a suitable technical route was presented for processing of eligible molybdenum and copper concentrate with a high recovery. Moreover, the main factors i.e. grinding fineness and collector dosage, affecting the quality of roughing concentration was investigated.

Improvement of copper–molybdenum ore beneficiation …

Jan 01, 2013 Thus, the investigations performed have demonstrated that the middlings from bulk flotation cycle of copper–molybdenum ores are characterized by higher content of secondary sulfide and oxidized copper minerals (57.1%), higher content of pyrite (18.3%), lower content of carbonaceous rock-forming minerals (up to 0.8%) and a significant part of aggregates (up to 28%), including locked …

Processing of Complex Ores | ScienceDirect

Detailed flotation tests on three diverse copper ores, using different types of collectors, and two Cu-Mo concentrates have revealed that the optimum potentials for copper flotation are in the range of -400 to -600 mV (vs. Ag/AgC1 reference).

Copper-Lead-Zinc ores

Addition rates of these depressants can be critical if any recirculating load is returned to the bulk rougher circuit. This flotation step is conducted at alkaline pH. In the case where galena is floated and the copper minerals are depressed, copper depression can be achieved by using sodium sulphide, hydrosulfite, lime, cyanide, zinc-cyanide and/or ferricyanide complexes. Selection of flotation reagents and frothers is an …

Effect of microwave pretreatment on grinding and flotation ...

The present work initially studies the kinetics of microwave-assisted grinding and flotation in a porphyry copper deposit. The kinetics tests were carried out on the untreated and microwave irradiated samples by varying the exposure time from 15-150 sec. Optical microscopy, energy-dispersive X-ray spectroscopy and scanning electron microscopy were used for determining the mineral liberation ...

Complex Sulphide Ores: Processing Options | SpringerLink

Complex sulphide ores represent considerable reserves and resources in base non ferrous metals, in precious metals, and in sulphur. Some of their essential characteristics, which allow a general presentation of the complexity of their processing options, from the ore to the pure metals or finished products, have already been presented by the author (1,2).

Handbook of Flotation Reagents - MESA

Handbook of Flotation Reagents Chemistry, Theory and Practice: Flotation of Sulfide Ores by Srdjan M. Bulatovic • ISBN: 0444530290 • Publisher: Elsevier Science & Technology Books • Pub. Date: April 2007

Copper Concentrates - Cargo Handbook - the world's …

The average grade of copper ores in the 21st century is below 0.6% copper, with a proportion of economic ore minerals (including copper) being less than 2% of the total volume of the ore rock. A key objective in the metallurgical treatment of any ore is the separation of ore …

EVALUATION OF ORGANIC CARBON SEPARATION …

The presence of shale, the source of carbonaceous matter in the ore, has also a negative effect on flotation and pyrometallurgical processes. The presence of clay minerals and organic carbon in shale makes the production of high quality flotation concentrates, without excessive loss of copper and other metals in the flotation tailing, difficult.

Investigation on Improving the Recovery of Molybdenum in ...

Abstract: Improving the recovery of molybdenum is a research hotspot in the bulk flotation of Mo-copper sulphide ore. In this paper, the optimum flotation parameters for a kind of molybdenite ore obtained form Yunnan province, involving the grinding fineness, pulp concentration, dosages of kerosene and butyl xanthate, were determined in order to improve the recovery of Mo in the bulk Mo-copper flotation.

Flotation of Fully Liberated Low Grade Copper-Nickel Ore

carried out using a 60 mm impeller size. Flotation was initiated by adding the chemical reagent and conditioned for 5 min, and pulp level was adjusted by adding make up water. Flotation was started by opening the air valve, and the air flow was adjusted to 4 L/min, while the copper concentrate was collected for five minutes followed by the

Copper Lead Concentrate Separation

Mar 19, 2017 Copper Lead Separation Flowsheet A: A bulk copper and lead flotation, followed by a copper depression reverse. This scheme uses cyanide to depress the copper in the reverse process. With the use of cyanide in the reverse, cyanide was also used in the bulk flotation process to depress sphalerite and pyrite.

Bulk Flotation of Complex Copper Ore From Siocon ...

BULK FLOTATION OF COMPLEX COPPER ORE FROM SIOCON, ZAMBOANGA SIBUGAY - Free download as PDF File (.pdf), Text File (.txt) or read online for free.

bulk flotation of complex copper ore

BULK FLOTATION OF COMPLEX COPPER ORE FROM SIOCON. One kilogram of ore, at -200 mesh was used as feed to the bulk flotation that was conducted for 8 minutes. Two collectors, inde pendently added, were used at 3 different dosages: 20, 30, and 40 g/ton.

Flotation of a western complex ore

the oaaplex atlph1d. ore. whioh 1a. the. subject. ot. this investigation, has been 1n progress on a large scale tor seTeral yS8.1 s. As. the. operation haa bea sucoeesfUl lt tollon that the ore dressing methods have been deTeloped. in. much. detaU. For turther 1mproveents. an. intense. 1D.T•• tllation ls. re qulred. The. oaDplex Dature ...

Flotation of Fully Liberated Low Grade Copper-Nickel Ore

carried out using a 60 mm impeller size. Flotation was initiated by adding the chemical reagent and conditioned for 5 min, and pulp level was adjusted by adding make up water. Flotation was started by opening the air valve, and the air flow was adjusted to 4 L/min, while the copper concentrate was collected for five minutes followed by the

Efficiently Utilizing a Low Grade and Complex Copper Ore ...

Based on the analysis of the properties of the copper ore from Jinggu area in Yunnan province, a suitable technical route was presented for processing of eligible copper concentrate and the main factors i.e. grinding fineness, Na2S dosage and collector dosage, affecting the quality of roughing concentration was investigated. On this basis, a close-circuit flotation test scheme was preceded ...

Copper-Lead-Zinc ores

Addition rates of these depressants can be critical if any recirculating load is returned to the bulk rougher circuit. This flotation step is conducted at alkaline pH. In the case where galena is floated and the copper minerals are depressed, copper depression can be achieved by using sodium sulphide, hydrosulfite, lime, cyanide, zinc-cyanide and/or ferricyanide complexes. Selection of flotation reagents and frothers is an …

Developing a Bulk Circuit Suitable for Chalcopyrite …

After characterizing the ore, the objective was to apply bulk rougher flotation of both the copper minerals and pyrite for the copper-gold-pyrite ore at natural pH. Hence, no lime or other pyrite depressants were required in bulk roughing. The bulk rougher concentrate was upgraded in a …

Handbook of Flotation Reagents - MESA

Handbook of Flotation Reagents Chemistry, Theory and Practice: Flotation of Sulfide Ores by Srdjan M. Bulatovic • ISBN: 0444530290 • Publisher: Elsevier Science & Technology Books • Pub. Date: April 2007

Copper Concentrates - Cargo Handbook - the world's largest ...

The production of concentrates implies the crushing and later milling of the ore down to a particle size allows releasing copper by flotation. The concentrates from different regions have approximately between 24% up to 36% of copper. Copper concentrates are then submitted to a final filtration and drying process to decrease the humidity to 8-9%.

Lead-Zinc ores

The copper ions replace zinc atoms on the sphalerite surface creating a pseudocopper mineral surface coverage on the sphalerite which is then collected using copper flotation type collectors. Because most of the iron sulphides also report to the lead flotation tails and so feeds the zinc flotation circuit, typically lime is used to raise pH for ...

FLOTATION OF COPPER MINERALS FROM NORTH M. …

122 million tons of copper ore of the North Waziristan area.Pilot-scale flotation studies were carried out to upgrade its copper-content by physical concentration method to a level which is suitable for metallurgical treatment to produce blister copper. Flotation-process parameters, such as collector type and dosage,

Increased liberation and flotation performance of bulk ...

[en] Flotation concentrate originating from the Asarel-Medet porphyry copper mining and processing complex in Bulgaria has been subjected to regrinding using a Ro-Star mill and the effects from which on the downstream metallurgical behavior are discussed. Particularly the effect on the liberation degree was studied through an optical microscopy and MLA-SEM automated mineralogy.

Geometallurgical approach to understand how the ...

flotation and magnetic separation, following a geometallurgical approach to better understand and predict the behavior of such ore types in processing plant. The first hypothesis in this thesis is that by addition of copper sulfate and increased collector dosage, Zn recovery will be improved without being detrimental to galena flotation.

Flotation Of Copper Ore - Steampot

Selective Flotation Of A Copper Molybdenum Bulk The copper ore concentrate product contained 21.17 cu and containing 0.07 mo and the recovery rate of copper was 99.92.The selective separation of copper.

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