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3 edition of Recovery of Copper From Converter Slags by Flotation. (Rev.). found in the catalog.

Recovery of Copper From Converter Slags by Flotation. (Rev.).

United States. Bureau of Mines.

Recovery of Copper From Converter Slags by Flotation. (Rev.).

by United States. Bureau of Mines.

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Published by s.n in S.l .
Written in English


Edition Notes

1

SeriesReport of investigations (United States. Bureau of Mines) -- 7562
ContributionsEdlund, V., Hussey, S.
ID Numbers
Open LibraryOL21740265M

Currently, the slags are sent to a milling and flotation plant for liberation and recovery of residual copper. The copper recoveries realized in the plant are much lower than expected and it has been postulated that some copper minerals may be occurring in forms that are more difficult to float like oxides or fine disseminations in the gangue. Recovery of copper from converter slags by flotation Vernal Recovery of copper from converter slags by flotation. Vernal E. Edlund, S. J. Hussey, United States. Bureau of Mines. شرکت ملی صنایع مس ایران National Iranian.

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 .   It should be mentioned that milling and flotation of converter slags to recover copper therefrom is well known in the art. A good study thereof is made in RI of the Bureau of Mines Report of Investigations/, published by the United States Department of the Interior.

The recovery of copper values from the discarded slag has been explored by applying a flotation technique using con- ventional sodium isopropyl xanthate (SIX) as the collector. The effects of flotation parameters such as pH and collector con-. DOI: /SX(02)X Corpus ID: Base metals recovery from copper smelter slag by oxidising leaching and solvent extraction @inproceedings{BanzaBaseMR, title={Base metals recovery from copper smelter slag by oxidising leaching and solvent extraction}, author={A. N. Banza and Eberhard Gock and K. .


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Recovery of Copper From Converter Slags by Flotation. (Rev.) by United States. Bureau of Mines. Download PDF EPUB FB2

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.

Get this from a library. Recovery of copper from converter slags by flotation. [V E Edlund; S J Hussey; United States. Bureau of Mines,].

The recovery of copper and cobalt from ancient copper slags from the Küre region of Turkey was investigated. A fayalitic-type of ancient copper slag. This study was designed to recover copper and cobalt hydrometallurgically from an enriched concentrate of flotation and converter slag.

Three slag samples collected from the Ergani Copper Co. The recovery of copper from reverberatory furnace slag utilizing flotation has been studied. The effective factors such as particle size, pH, the amount and type of collector and additives, and flotation time were examined. The effect of cooling rate on flotation behavior of the slag was also by: 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].

The copper content of the slags range between to 5 wt. % and this is considered too high for disposal to the environment. Currently, the slags are sent to a milling and flotation plant for liberation and recovery of residual copper.

hydrometallurgy ELSEVIER Hydrometallurgy 44 () Technical Note Metal recovery from copper converter slag by roasting with ferric sulphate H.S.

Altundogn, F. Ten Department of Chemical Engineering, Firat University, ElazigTurkey Received 25 November ; accepted 13 April Abstract A study of the recovery of copper, cobalt, nickel and zinc from copper converter slag.

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.

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.

This work focuses on optimizing the recovery of copper minerals in copper smelter slags by. 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.

approximately 12 million tons of copper slag is produced every year, and the amount of accumulated waster copper slag reached million ton by in China [6]. Generally, copper slag contains about 35–45 wt. % iron and – wt. % copper, indicating that it is a valuable secondary resource for recycling and utilization [3].

Recently smelter copper slags stockpiled in dumps are being reprocessed by crushing, milling and flotation to recover entrained copper contents. This technique produces a flotation concentrate copper grade of approximately 25 to 30% with copper recoveries of between 60 and 70%. However, the.

This study was designed to recover copper and cobalt hydrometallurgically from an enriched concentrate of flotation and converter slag. Three slag samples collected from the Ergani Copper Co. of Etibank were studied. In order to convert the copper and cobalt into sulfate compounds, samples were roasted after sulfurization and leached with water.

Recovery of cobalt from converter slag of Chambishi Copper techniques, such as slag cleaning, slow cooling of the slag followed by milling and flotation, are inappropriate for cobalt recovery from converter slag [7−8]. Read More. The analysis of highly reduced slags has shown that it is possible to remove virtually all of the cobalt and nickel from the olivine in the slag.

Nickel-copper converter slag 'B' - MVA. Large-scale testwork on converter slag was conducted, duringon a MVA DC-arc furnace operating at a power level of kW. 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.

Laboratory batch flotation tests were conducted on copper converter slags to evaluate the relative merits of recovering copper from slow- cooled versus water-quenched slags. Three slags containing, and percent copper were used. The amount of copper flash smelting slag has increased during the recent years along with an increasing slag-to-metal ratio.

During slag tapping, some copper sulfide is mechanically entrained. As a result, it is necessary to recover copper matte from the slag by suitable methods. At present, the most common way is slow, controlled cooling in a transfer ladle. However. following three methods are generally utilized for recovering the copper from these slags on an industrial scale: (i) recycling of the converter slag to the smelting furnace, (ii) cleaning of smelting and/or converter slags in electric furnaces and (iii) flotation.

Metallic copper and sulphide copper present in these slags can be floated very. copper slag recovery through a flotation route. Almost in all of the flotation methods used to recover copper from slags, the Cu recovery was associated with many problems such as high grade of copper in tailing.

In the present study, the use of grinding time increased the copper slag recovery a lot.Ausmelt furnace slag contains about % Cu (mass %). With increasing the amount of Ausmelt furnace slag, the recovery of copper from it will produce an enormous economic yield.

The recovery of copper by floatation from slow cooled Ausmelt furnace slag was studied in this paper. The phases and composition of the slow cooled slag were analyzed.Reverberatory furnaces can additionally be fed with molten slag from the later converting stage to recover the contained copper and other materials with a high copper content.

[27] Because the reverberatory furnace bath is quiescent, very little oxidation of the feed occurs (and thus very little sulfur is eliminated from the concentrate).