Copper Flotation Leaching

Leaching characteristics and mechanism of copper

2015-5-7  The copper deposit in Yangla zone of China is large, and its recovery is low only using flotation process. Therefore, the copper in the flotation tailings is leached by sulfuric acid can improve copper recovery. The factors affecting leaching process and the leaching

More

Leaching characteristics of copper flotation waste before ...

2006-12-1  Leaching of Cu, Zn and Pb metal ions decreased as the level of SiO 2 increased. While Cu release from vitrified copper flotation waste was 5.2 mg/L, Cu release from vitrified copper flotation waste with addition of 20% and 60% SiO 2 was 1.3 and 0.3 mg/L, respectively. Similar results were determined for Zn and Pb release.

More

Ferric leaching of copper slag flotation tailings ...

2009-1-1  Copper can be recovered from the slags by froth flotation after cooling, crushing, and grinding. The obtained Cu-concentrate is sent to the pyrometallurgical process. If grinding is not fine enough for efficient flotation, copper is lost in tailings. In this paper, the ferric leaching of slag flotation

More

(PDF) Ferric leaching of copper slag flotation tailings

If grinding is not fine enough for efficient flotation, copper is lost in tailings. In this paper, the ferric leaching of slag flotation tailings is studied. Copper extractions of 66% are achieved ...

More

Leaching behaviour and mechanical properties of copper ...

Leaching behaviour and mechanical properties of copper flotation waste in stabilized/solidified products. Mesci B(1), Coruh S, Ergun ON. Author information: (1)Department of Civil Engineering, Ondokuz Mayis University, 55139 Samsun, Turkey.

More

RECOVERY OF COPPER FROM OXIDE COPPER ORE BY

2014-12-24  RECOVERY OF COPPER FROM OXIDE COPPER ORE BY FLOTATION AND LEACHING Kiraz, Emirhan M.S., Department of Mining Engineering Supervisor: Prof. Dr. Mustafa Ümit Atalay December 2014, 65 pages The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H 2 SO 4) leaching.

More

LEACHING OF FLOTATION TAILINGS - TMT 2018

2018-1-4  leaching process has no significant effect on degree of copper. Optimum leaching time is 4 h. Based on the results, shown in Figure 4, the optimal ratio of S:L for the copper leaching process from flotation tailings is 1:2.5. The highest degree of copper leaching of 56% was achieved in the following

More

PRE-FLOTATION LEACHING OF POLISH CARBONATE

2009-2-9  Pre-flotation leaching of Polish carbonate copper ore 89 Fig. 3. pH-time relationship for non-oxidative leaching. Copper ore at various degrees of carbon-ate decomposition (from 30 to 100 %) was investigated The leaching process appeared to be very rapid. After 5–10 minutes the

More

RECOVERY OF COPPER FROM COPPER SLAG AND

2014-9-8  flotation. Low copper extractions both from the slag and the slag flotation tailings indicate that sulphuric acid is not a suitable reagent for leaching these materials, at room temperature. This conclusion is in line with the study by Banza et al. (2002) where the leaching of copper smelter slag with sulphuric acid (500 kg/Mg slag)

More

Cyanide Leaching of Flotation Concentrate - 911 Metallurgist

2016-2-11  Cyanide Leaching of Flotation Concentrate. When Charles Butters began to take up the work of flotation in our Oakland laboratory, one of the first points brought to our attention was the treatment of the concentrate produced by flotation; J. E. Clennell was accordingly instructed to undertake the researches detailed in the present paper.

More

Leaching characteristics and mechanism of copper

2015-5-7  The copper deposit in Yangla zone of China is large, and its recovery is low only using flotation process. Therefore, the copper in the flotation tailings is leached by sulfuric acid can improve copper recovery. The factors affecting leaching process and the leaching mechanism were investigated in this study. Copper

More

Copper Flotation And Leaching - mangalya-ophira

2021-4-22  The copper deposit in Yangla zone of China is large, and its recovery is low only using flotation process. Therefore, the copper in the flotation tailings is leached by sulfuric acid can improve copper recovery. The factors affecting leaching process and the leaching mechanism were investigated in this study. Copper is leached at a rate of 53.8 when initial H2SO4 concentration is 0.428 molL ...

More

Leaching of a copper flotation concentrate with

2014-8-3  The leaching behavior of a copper flotation concentrate was investigated using ammonium persulfate (APS) in an autoclave system. The decomposition products of APS, active oxygen, and acidic medium were used to extract metals from the concentrate. Leaching experiments were performed to compare the availability of APS as an oxidizing agent for leaching of the concentrate under

More

Flotation and Leaching Process of a Copper Oxide Ore

2014-3-13  The copper sulphide and part of malachite and azurite were enriched by flotation. The concentrate grade of copper from flotation was 25.04% with the recovery rate of 57.25%. The azurite and chrysocolla that remained in the tailings were leached by sulfuric acid, and the grade of copper decreased from 0.94% to 0.05%, the leaching rate of copper was 94.68%, leading to the high recovery rate of ...

More

Recovery of Copper from Flotation Tailings by Leaching ...

The best leaching conditions are stirring speed of 30 m/min, H2SO4 concentration of 150 Kg/t ore, leaching time of 30 minutes. Under the best conditions, the acid leaching test presented that the production of per ton copper consumes sulfuric acid of 17.31 t, and Cu leaching rate is 84.70%.

More

Copper Leaching Practices

2021-2-5  Oxidized copper ores, mixed oxide-sulfide ores, and those sulfide ores too low in grade to concentrate by froth flotation are treated by various copper leaching methods. The principal copper oxide minerals dissolved by leaching are azurite, chrysocolla, and malachite, although varying amounts of cuprite, tenorite, and native copper

More

LEACHING OF FLOTATION TAILINGS - TMT 2018

2018-1-4  leaching process has no significant effect on degree of copper. Optimum leaching time is 4 h. Based on the results, shown in Figure 4, the optimal ratio of S:L for the copper leaching process from flotation tailings is 1:2.5. The highest degree of copper leaching of 56% was achieved in the following

More

PRE-FLOTATION LEACHING OF POLISH CARBONATE

2009-2-9  Pre-flotation leaching of Polish carbonate copper ore 89 Fig. 3. pH-time relationship for non-oxidative leaching. Copper ore at various degrees of carbon-ate decomposition (from 30 to 100 %) was investigated The leaching process appeared to be very rapid. After 5–10 minutes the

More

Acid leaching of oxide–sulfide copper ore prior the ...

2015-11-26  453 Acid leaching of oxide–sulfide copper ore prior the flotation – A way for an increased metal recovery Miroslav D. Sokić1, Vladan D. Milošević1, Velizar D. Stanković2, Vladislav Lj.Matković1, Branislav R. Marković1 1Institute for Technology of Nuclear and Other Mineral Raw Materials, Belgrade, Serbia 2University of Belgrade, Technical Faculty, Bor, Serbia

More

Influence of Ferric and Ferrous Iron on Chemical and ...

2013-12-24  of copper and iron from flotation concentrates including both primary and secondary copper sulfides has not been well studied as yet. Hence, this research was done to in-vestigate the effect of these cations on chemical and bac-terial leaching of Sarcheshmeh copper concentrate in the presence and absence of mixed cultures of moderately

More

copper flotation and leaching - kueche-wohnen

2021-9-16  gold leaching flotation separator copper refining Water Consumption at Copper Mines in Arizona AZ. Silver processing Britannica Silver was discovered after gold and copper about bce when it was used in jewelry Since virtually all the ores are sulfides they are amenable to flotation Upon electrolytic refining of the copper insoluble impurities called slimes This is called inquartation and the ...

More

Leaching of a copper flotation concentrate with

2014-8-3  The leaching behavior of a copper flotation concentrate was investigated using ammonium persulfate (APS) in an autoclave system. The decomposition products of APS, active oxygen, and acidic medium were used to extract metals from the concentrate. Leaching experiments were performed to compare the availability of APS as an oxidizing agent for leaching of the concentrate under

More

Flotation and Leaching Process of a Copper Oxide Ore

2014-3-13  The copper sulphide and part of malachite and azurite were enriched by flotation. The concentrate grade of copper from flotation was 25.04% with the recovery rate of 57.25%. The azurite and chrysocolla that remained in the tailings were leached by sulfuric acid, and the grade of copper decreased from 0.94% to 0.05%, the leaching rate of copper was 94.68%, leading to the high recovery rate of ...

More

Copper Flotation And Leaching

Copper Leaching From Refractory Flotation Tailings. Copper sulfide and free oxidation copper in the raw ore were recycled by flotation, but the other refractory copper oxides, mainly the combination copper oxide, were not thoroughly recycled and the majority were lost in the tailings. as is typical for flotation tailings containing silicate gangue minerals, high temperature leaching was used 12.

More

Recovery of Copper from Flotation Tailings by Leaching ...

The best leaching conditions are stirring speed of 30 m/min, H2SO4 concentration of 150 Kg/t ore, leaching time of 30 minutes. Under the best conditions, the acid leaching test presented that the production of per ton copper consumes sulfuric acid of 17.31 t, and Cu leaching rate is 84.70%.

More

Copper Flotation And Leaching

Copper extraction . Supergene sulfide ores rich in native copper minerals are refractory to treatment with sulfuric acid leaching on all practicable time scales and the dense metal particles do not react with froth flotation media Typically if native copper is a minor part of a supergene profile it will not be recovered and will report to the tailings

More

Agitated Copper Leaching Cementation Process

2016-4-14  Copper Agitated Leaching and cementation process of copper problem: The treatment of copper ores, both oxides and sulfides by means of flotation, hydrometallurgy or other processes has been well established for many years. Flotation has been

More

Flotation and Tailing Discarding of Copper Cobalt Sulfide ...

Download Citation Flotation and Tailing Discarding of Copper Cobalt Sulfide Ores Based on the Process Mineralogy Characteristics The mineral composition of copper–cobalt ores is more complex ...

More

难处理混合铜矿选冶联合试验研究-A Technique for ...

The free copper oxide and the refractory combined copper oxide in the flotation tailings were recovered by the heating leaching method. When the leaching temperature was 70 °C, the liquid-solid ratio was 2:1; the concentrated sulfuric acid was 60 kg/t, and the leaching time was 4 h, the copper leaching

More

Experimental investigation and adaptive neural fuzzy ...

2018-5-17  The potential of copper recovery from flotation tailings was experimentally investigated using a laboratory-mixing tank. The experiments were performed with solid weight percentages of 30wt%, 35wt%, 40wt% and 45wt% in water. The measurements revealed that adding sulfuric acid all at once to the tank rapidly increased the efficiency of the leaching process, which was attributed to the rapid ...

More

Copyright © 2020.Company name All rights reserved.SiteMap