Recovery of copper from converter slags by flotation. by V.E. Edlund and S.J. Hussey Download PDF EPUB FB2
In the flotation step, a copper concentrate containing approximately 11% Cu was produced with a 77% recovery while 93% of the cobalt stayed in the by: 3.
Aiming at the recovery of copper from smelting slag, a flotation approach was studied. It was found that this slag composed of fine particles with complex association and distribution, in which bornite was the main copper-bearing mineral after a detailed mineralogy analysis via polarizing microscope, SEM and : Jiaqi Fan, Hongxu Li, Liangtian Wei, Chao Li, Shi Sun.
For an air-cooled slag at optimized conditions, 72% of copper was recovered in one stage flotation and a % copper concentrate was achieved.
The best recovery efficiency was obtained when 30 g/t. Recovery of Copper and Cobalt from Converter Slag with a New Flotation Method Using H2S Recovery of Copper and Cobalt from Copper Slags as Content uploaded by. 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 Cu – oxides Cu – sulphides SiO 2 Al 2 O. Recovery of Copper and Cobalt from Converter Slag with a New Flotation Method Using H2S 70 sulfuric acids [12, 13] with and without pressure, ferric chloride [8, 14, 15], ferric sulfate, cyanide, thiosulphate leaching, ferric sulfate and ammonia sulfate solutions [7, 12, 17, 18].
RECOVERY OF COPPER FROM OXIDE COPPER ORE BY FLOTATION AND LEACHING Kiraz, Emirhan M.S., Department of Mining Engineering Supervisor: Prof. Mustafa Ümit Atalay December65 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.
A study of the recovery of copper, cobalt, nickel and zinc from copper converter slag by roasting with ferric sulphate is reported. Roasting of converter slag with ferric sulphate, followed by leaching with water, was carried out in order to bring the metal values into solution.
For copper and cobalt recovery from copper slags, a binary mixture primarily formed by taking pyrite/slag ratio. The mixture of slag/pyrite which is % of Cu and % of Co was subjected to roasting at high temperatures in a closed medium for 2 hours and then roasted at air atmosphere at oC at different times.
slag followed by milling and flotation, are inappropriate for cobalt recovery from converter slag [7−8]. Recently, hydrometallurgical processes for cobalt recovery from slag by selective leaching of metal values were reported [9−12].
For low content of cobalt in converter slag, however, plentiful slag is put through the entire process. and the other three models also gave good fit to the data for copper recovery as affected by pH of pulp in flotation process (Fig.
2) the X-max calculated from the quadratic equation show that pH of the pulp will result in maximum recovery, however, the two straight lines model show that pH of is the joining point with the highest. Abstract: The recovery of copper from smeltery furnace slag by flotation has been studied.
By analysis the slag containing % copper and g/t silver is available to recovery. The effective factors such as particle size, the amount and type of collector were examined. Copper smelting slags are hard materials. Therefore,to recover their copper by flotation method, grinding should be carried out to obtain optimal particle size.
Copper smelting slags in the Bardeskan district, with work index of kwh/st, were grinded for 65 minutes to reach an acceptable degree of freedom for the flotation tests, with particle size of 80%, smaller than 70 μm.
A flotation process in which copper ores or copper converter slags are ground and firstly have added thereto benzotriazole or alkyl benzotriazole as an activator and secondly one or more collectors selected from the group consisting of xanthates, dithiophosphates, thiocarbamate esters, dithiocarbamates, mercaptans and dixanthogens and further, if desired, a promoter such as kerosene, light oil.
A study on the recovery of copper, cobalt, and zinc from copper smelter and converter slags by roasting with sulfuric acid has been conducted. Acid roasting of slags followed by hot water leaching was carried out to bring the metal values into solution.
The slags cannot be discarded due to the high content of copper and hence they are sent to a milling and flotation plant (Slag Mill Plant) for liberation and recovery of copper.
The slag from the furnaces are rapidly cooled by means of granulation with water, therefore copper minerals tend to be trapped in solid gangue phases. Copper recovery from the secondary copper slag by the flotation method is an alternate route. The partial enrichment of Sn and Ni is also possible by this method.
Obtaining high recovery in copper flotation plants has been always under investigation in recent years. Misreported copper into tailing dramatically declines copper recovery. This study aims to find the possible reasons of copper loss to tailing and present the methods to improve the performance of the Sarcheshmeh copper plant flotation circuit.
The Effect of Copper Bearing Particles Liberation on Copper Recovery from Smelter Slag by Flotation. Although basic porphyry copper flotation and metallurgy has remained virtually the same for many years, the processing equipment as well as design of the mills has continually been improved to increase production while reducing operating and maintenance costs.
Also, considerable attention is paid to automatic sensing devices and automatic controls in order to assure maximum metallurgy and.
The reverberatory furnace slag that has been discarded in the vicinity of the Bor Copper Smelter, Serbia, is currently processed by flotation at the nearby Bor Copper Concentrator. The copper recovery was rather low (about 40%) mainly due to the presence of oxide copper and insufficient mineral liberation.
Converter slag crushing magnetic solutions copper flotation from converter slags 25, slag crusher machine for iron,copper,lead is used for crushing slag in the slag a study of the optimal model of the flotation kinetics of archives of mining sciences in this study the effect of.
To increase the copper recovery, a mixture of 6 g/t Z 6, 4 g/t Z 11, 30 g/t AEROand 20 g/t AERO were used to determine synergism effect of collectors on copper recovery. After doing flotation tests at optimal conditions with mixture of collectors, copper recovery was increased to %. procedure was successfully applied to recover copper spiked to some natural water samples.
A mechanism for sorption and flotation is suggested. INTRODUCTION It has been known for a long time that no life can develop or survive without the presence of heavy metals such as copper, zinc, etc.
(Yubin et al. Transition metals, in particular. hydrometallurgical 2 copper production. Tables and provide capsule summaries of these processes. 1 PyrometaIIurgy IS the extractIon of metaI from ores anD concen-trates using chemical reactions at high temperatures. 2 Hydrometallurgy is the recovery of metaIs from ores using water-based solutions.
As early as B. C., native copper. 13 Flotation of Copper-Zinc Ores. Some Geological and Mineralogical Features of Copper-Zinc Ores Relevant to Flotation.
Flotation Properties of Copper-Zinc Ores. Reagent Practice in Flotation of Low and Medium Iron Sulfide Content. Table 1: Grade/recovery performance of a hypothetical copper ore flotation process. Product % Weight % Cu Assay Feed Concentrate 10 Tailings 90 (a) From Table 1, the Ratio of Concentration can be calculated as F/C = /10 = If only.
Abstract: Copper removal from industrial wastewater studied for environmental protection and copper recovery. The paper shows is the copper removal of copper from industrial wastewater by ion flotation at a laboratory scale, using an anionic collector (Sodium Dodecyl Sulfate, SDS).
The copper in the leach liquor was recovered by cementation with iron and the dissolved iron crystallized as ferrous sulphate monohydrate. The cobalt in the mother-liquor rich in iron was recovered by either cementation or sulphide precipitation.
Operation variables in. The recovery of gold-containing pyrite to the copper concentrate is encouraged to achieve a higher total gold recovery provided that a saleable copper concentrate grade is still produced.
Mineralogical diagnosis of feed and product streams from the copper flotation circuit have shown that the copper bearing minerals are well liberated.
time, collector type and addition on efficiency of tennantite flotation. It was shown that maximum copper recovery of 95,3% was obtained at pH by was suggested to grind up to % of mm to achieve the optimum recovery of copper and high grade of arsenic in concentrate.The flotation of smelting copper slags in Yunnan has been studied in this paper.
The influences of grinding fineness, different kinds of collectors and the dosage of sodium sulfide, GZT, which influence the flotation results, are tested. The experimental results show that in the first stage of roughing, a good flotation result is obtained, the concentrate copper grade reaches % and the.The optimum conditions for the recovery of the base metals are collector dosage, 80g/t; pH, ; %solids, 25; and depressant dosage, g/t.
Relative significance of flotation parameters (based on difference between max and min. values) indicates that pH has the most significant effect on the recovery of nickel, copper and cobalt during.