flotation copper tailings

Dynamic froth stability of copper flotation tailings ...

2018-8-1 · Samples of copper tailings were collected from the overflow and underflow streams of the primary hydrocyclone at the processing plant discussed in Section 2.1.The d90s of these samples were 63.7 μ m and 279 μ m respectively and the particle size distributions of each can be found in Fig. 1.The samples were obtained as slurry, which was subsequently dried and the two sizes combined in ...

(PDF) Old copper flotation tailings waste reprocessing

The average copper content is. 0.3 per cent, gold 0.8 g/t, silver 2.4 g/t and sulphur 12.7 per cent. The fl otation tailings pond is located nearby Bor city centre and has great environmental ...

Recovery of pyrite from copper tailings by flotation ...

2019-9-1 · The pyrite grade in the fresh tailing sample and in the flotation product was determined indirectly from the content sulfur, copper and iron. Calculations carried out considering the elemental chemical composition presented in Table 1 and the mineralogical species that contained sulfur, identified by the XRD analysis, allowed to determine that the fresh tailings sample contained 4.56% FeS 2 ...

(PDF) Recovery of pyrite from copper tailings by flotation

Tailings that are generated in the copper concentrate production contain great amount of sulfide mineral, in particular pyrite. Pyrite in contact with water and oxygen might

(PDF) Ferric leaching of copper slag flotation tailings

In this paper, the ferric leaching of slag flotation tailings is studied. Copper extractions of 66% are achieved by ferric leaching, and Cu content in tailings is reduced from 0.78% to 0.24%.

Recovery of Copper from Cyanidation Tailing by Flotation ...

2015-12-10 · In addition, the depression effect of hexacyanoferrous and hexacyanoferric complexes on chalcopyrite flotation is pronounced.17 Therefore, in order to recycle copper from cyanide tailings, it is necessary to eliminate depression effect of cyanide. At present, many studies of chalcopyrite activation are based on no depression.19,20 In this case, copper sulfate is usually used to activate ...

Ultrasound treatment on tailings to enhance copper ...

2016-12-1 · As ore grades fall, the amount of tailings production for the same copper production is expected to rise. Flotation recovery of copper sulfide from the El Teniente plant has deteriorated in recent years, in this regard ultrasound treatment of tailings for enhanced copper recovery was evaluated in laboratory experiments.

Evaluation of the possibility of copper recovery from ...

2018-1-10 · The present research aims at recovering copper by reprocessing of tailings at China Molybdenum Co. Ltd. (CMOC) from bench-scale to industrial tests. It focuses on the determination of the reagents' dosage and pulp concentration that enables to obtain the highest recovery of copper by flotation of the studied tailings.

REPROCESSING OF THE OLD FLOTATION TAILINGS

2018-12-31 · Copper content in the flotation tailings had been changing in the same period from 0.5% at the begin-ning to less than 0.1% at the flotation process ending, depending on the copper ore quality and the flotation process parameters applied at that time. Characterization of the OFT

RECOVERY OF VALUES FROM A PORPHORY COPPER

2016-8-31 · RECOVERY OF VALUES FROM A PORPHORY COPPER TAILINGS STREAM *Michael J. Mankosa1, Jaisen N. Kohmuench1, Lance Christodoulou1 and Gerald H. Luttrell2 1Eriez Flotation Division 2200 Asbury Road Erie, Pennsylvania USA 16506 (*Corresponding author: [email protected])

(PDF) Old copper flotation tailings waste reprocessing

The average copper content is. 0.3 per cent, gold 0.8 g/t, silver 2.4 g/t and sulphur 12.7 per cent. The fl otation tailings pond is located nearby Bor city centre and has great environmental ...

RECOVERY OF VALUES FROM A PORPHORY COPPER

2016-8-31 · RECOVERY OF VALUES FROM A PORPHORY COPPER TAILINGS STREAM *Michael J. Mankosa1, Jaisen N. Kohmuench1, Lance Christodoulou1 and Gerald H. Luttrell2 1Eriez Flotation Division 2200 Asbury Road Erie, Pennsylvania USA 16506 (*Corresponding author: [email protected])

REPROCESSING OF THE OLD FLOTATION TAILINGS

2018-12-31 · Copper content in the flotation tailings had been changing in the same period from 0.5% at the begin-ning to less than 0.1% at the flotation process ending, depending on the copper ore quality and the flotation process parameters applied at that time. Characterization of the OFT

(PDF) Recovery of pyrite from copper tailings by flotation

Tailings that are generated in the copper concentrate production contain great amount of sulfide mineral, in particular pyrite. Pyrite in contact with water and oxygen might oxidize spontaneously ...

(PDF) Ferric leaching of copper slag flotation tailings

In this paper, the ferric leaching of slag flotation tailings is studied. Copper extractions of 66% are achieved by ferric leaching, and Cu content in tailings is reduced from 0.78% to 0.24%.

Copper Sulfide Flotation - Mineral Processing & Metallurgy

2016-4-13 · Flowsheet for treatment of Copper Sulfide ores rich inminerals such as chalcopyrite with gold and silver as well as arsenopyrite. The above flowsheet is designed for the treatment by flotation of copper as chalcopyrite with gold and silver values. The

Recovery of Copper from Ammoniacal Leachates by Ion

2021-4-27 · Copper and zinc extraction by ammoniacal leaching from microwave-roasted Cu-Zn-Pb sulfidic tailings followed by recovery of copper and zinc by ion flotation and precipitation. Introduction Tailings are mixtures of fine-grained unwanted fractions after mineral beneficiation of ores at a mining site that are considered as a waste [ 1 , 2 ].

Review of Practices in the Managements of Mineral Wastes ...

2021-6-25 · Tailings from the flotation beneficiation of copper ores can be used, in combination with other components, in ceramics production as well as aggregate in road construction (Kudełko, 2018). Throughout the world, there is an increasing number cases of tailings reprocessing in view of extracting valuable metals (Almeida et al., 2020 ; Borra et ...

RECOVERY OF COPPER FROM COPPER SLAG AND

2014-9-8 · Recovery of copper from copper slag and copper slag flotation tailings 75by oxidative leaching Table 1. Chemical compositions of the copper smelter slag and the slag flotation tailings Constituent Content (wt.%) Copper Slag Slag Flotation Tailings Cu – total 0.97 0.59 Cu – oxides 0.15 0.06 Cu – sulphides 0.82 0.53 SiO 2 33.75 34.62 Al 2 O

Copper Leaching from Refractory Flotation Tailings

Copper Leaching from Refractory Flotation Tailings Xu Bai 1,2 , Shuming Wen 1,2 , Jian Liu 1,2, * and Yilin Lin 2 1 State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,

Study on Flotation Technique to Recycle Copper from

A copper dressing plant in Jiangxi province of China deals with raw ore in the capacity of 185,000 t/a, and its copper recovery is 86.5% while 13.5% copper still remained in tailings, and a considerable amount of copper is lost in coarse particles tailings. Coarse particles with large size and big mass are very easily detached from bubbles in flotation process, so it is difficult for the plant ...

(PDF) Recovery of pyrite from copper tailings by flotation

Tailings that are generated in the copper concentrate production contain great amount of sulfide mineral, in particular pyrite. Pyrite in contact with water and oxygen might oxidize spontaneously ...

Copper Leaching from Refractory Flotation Tailings

Copper Leaching from Refractory Flotation Tailings Xu Bai 1,2 , Shuming Wen 1,2 , Jian Liu 1,2, * and Yilin Lin 2 1 State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,

HydroFloatTM Case Study: Copper Recovery from

2021-10-25 · • Roughly 75% of copper in flotation tailings exists as unliberated fine-grained copper sulfides in gangue-mineral composite particles Figures: Vollert, L., Akerstrom, ., Seaman, ., and Kohmuench, J., 2019. Newcrest’s industry first application of Eriez HydroFloatTM technology for copper recovery from tailings at Cadia Valley Operations.

RECOVERY OF COPPER FROM COPPER SLAG AND

2014-9-8 · Recovery of copper from copper slag and copper slag flotation tailings 75by oxidative leaching Table 1. Chemical compositions of the copper smelter slag and the slag flotation tailings Constituent Content (wt.%) Copper Slag Slag Flotation Tailings Cu – total 0.97 0.59 Cu – oxides 0.15 0.06 Cu – sulphides 0.82 0.53 SiO 2 33.75 34.62 Al 2 O

Pyrite-Gold Recovery in Copper Rougher Flotation Tailings ...

The present study investigates the effect of regrinding and aeration on the separation of pyrite from gold in copper rougher flotation tailings (0.07% Cu, 0.61g/t Au, tail grades).

Recovery of Copper from Ammoniacal Leachates by Ion

2021-4-27 · Copper and zinc extraction by ammoniacal leaching from microwave-roasted Cu-Zn-Pb sulfidic tailings followed by recovery of copper and zinc by ion flotation and precipitation. Introduction Tailings are mixtures of fine-grained unwanted fractions after mineral beneficiation of ores at a mining site that are considered as a waste [ 1 , 2 ].

RECOVERY OF VALUES FROM A PORPHORY COPPER

2016-8-31 · RECOVERY OF VALUES FROM A PORPHORY COPPER TAILINGS STREAM *Michael J. Mankosa1, Jaisen N. Kohmuench1, Lance Christodoulou1 and Gerald H. Luttrell2 1Eriez Flotation Division 2200 Asbury Road Erie, Pennsylvania USA 16506 (*Corresponding author: [email protected])

1 Froth Flotation – Fundamental Principles

2009-8-27 · 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 (a) From Table 1, the Ratio of Concentration can be calculated as F/C = 100/10 = 10. If only

Copper Flotation - Elmhurst University

2015-4-10 · The copper minerals and waste rock are separated at the mill using froth flotation. The copper ore slurry from the grinding mills is mixed with milk of lime (simply water and ground-up limestone) to give a basic pH, pine oil (yes, it comes from trees --

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