copper recovery from slag in Indonesia


Optimization of the flotation of copper smelter slags from

uctivity of the copper recovery from the slags the reactive area between the slags and the carbon reducer should be as high as possible In consequence the effect of the reducer s surface on the rate of the industrial slag reduc-tion was investigated in this study The attempt in early investigation on copper recovery from the slag of di-

Characteristics and utilisation of copper slag—a review

Minerals 2016 6 119 2 of 11 settled in the slag cannot be effectively utilized Main methods in use for iron recovery from copper slag include direct beneficiation for iron recovery 3 oxidative modification 4 5 of iron oxide for iron

The Recovery of Copper from Smelting Slag by Flotation

About 2 5 million tonnes of copper smelter slag are available in Küre northern part of Turkey This slag contains large amounts of metallic values such as copper and cobalt A representative slag sample containing 0 98 Cu 0 49 Co and 51 47 Fe was used in the experimental studies

Copper extraction - Wikipedia

Copper slag can also be used as a building material formed into blocks Copper slag is widely used in the sand blasting industry and it has been used in the manufacture of abrasive tools In general the spent copper slag is suitable to be used as a fill material for land reclamation

Copper Slag - General Information Process Products

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

Recovery of copper and cobalt from ancient slag - Gülay

Copper smelting slag is produced from copper pyrometallurgy both smelting and converting stages usually grading at 0 3-3 The slag may also contains lead zinc minerals like galena sphalerite Copper mainly dwells in the slag in the form of bornite chalcocite chalcopyrite and metallic copper

Recovery of Copper and Silver by Flotation from Smelting

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 …

HEAT RECOVERY FROM MELTED BLAST FURNACE SLAG …

The copper slag generated at Kure has been investigated by Acma et al 1997 for the recovery of copper cobalt and production of magnet grade iron oxide by pyro-hydrometallurgical route The fayalitic slag analysing about 0 8 Cu and 0 4 Co is reduced with coke graphite in a DC arc furnace to yield a liquid alloy rich in iron containing

RECOVERY OF COPPER FROM SMELTING SLAG BY …

Recovery of cobalt from converter slag of Chambishi Copper Smelter using reduction smelting process ZHAI Xiu-jing 1 LI Nai-jun2 ZHANG Xu FU Yan1 JIANG Lan1 1 School of Materials and Metallurgy Northeastern University Shenyang 110819 China

EFFICIENCY OF COPPER RECOVERY FROM A SLAG IN THE …

Improving Copper Recovery from Production Slags by Advances Stirring Methods Proceedings of EMC 2011 3 treated in the existing copper extraction route or separately in a subsequent reactor the slag phase can be used as construction material for example 1 2 Conventional pyrometallurgical copper slag …

Copper Recovery from Yimen Copper Smelting Slag--《Metal

It will be noted from the figures that the recovery of gold and silver into the copper base bullion is almost complete Recovery of copper is not as high some being lost into the slag but its value is slight Bars of copper base bullion produced to date total 16 in number

The Influence of the Carbon Surface on the Rate of Copper

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

Copper Smelting Slag Recovery- - Metalcess

The composition of Yimen copper smelting slag was complex with Cu grade of 1 83 Main copper minerals are copper sulfide accounting for 94 54 of total copper In order to high efficiently recover copper mineral processing tests were carried out The results showed that at the grinding fineness of the-0 045 mm accounted for 90 through the process of one roughing-three cleaning-two

RECOVERY OF COPPER FROM SMELTING SLAG BY …

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

Analysis of Slag The - journal library iisc ernet in

Copper smelting slag is the solid waste generated in the process of smelting copper Due to the limitations of the smelting technology most of the copper smelting slag contains a certain amount of copper Disposing and recycling copper can effectively reduce the waste of useful resources while generating considerable economic effectiveness

Recover Copper from Reverberatory Furnace Slag

Efficiency of Copper Recovery from a Slag in the Large Electric Furnace Figure 4 Calculated copper content in a slag versus time based on simple gravitational settling and gravitational coalescence model The gravitational coalescence model did not show significant removal of metallic copper

RECOVERY OF IRON FROM COPPER FLASH SMELTING SLAGS

consumption 183 million tons 2 in Japan However heat recovery from melted slag is not an easy task With heat removal the slag changes its phase from liquid to solid thus the direct heat recovery from the melted slag is not possible At this moment heat recovery from slag has not yet been conducted commercially

Improving Copper Recovery from Production Slags by

Copper can be lost from the matte in three ways as cuprous oxide Cu 2 O dissolved in the slag as sulfide copper dissolved in the slag or as tiny droplets or prills of matte suspended in the slag The amount of copper lost as oxide copper increases as the oxygen potential of the slag increases

Reductive-sulfurizing smelting treatment of smelter slag

In order to recover the iron in copper smelting slag quenched with water in smelters carbothermic reduction was adopted to reduce the iron oxide existing in different phase such as fayalite vitreous and magnetite in the slag to metal iron In the optimum conditions it was demonstrated that the metallization efficiency of iron could reach more than 86 1

The Recovery of Copper from Smelting Slag by Flotation

Recovery of copper from smelting slag by sulphation roasting and water leaching 411 Materials and experimental methods Experiments were conducted using a reverberatory furnace slag from the Bor Copper Concentrator Serbia The slag was sampled from the crushing line before entering the milling section of the concentrator

The Recovery of Copper from Smelting Slag by Flotation

The Use of Granulated Copper Slag as Cement Replacement in High-Performance Concrete Romy S Edwin1 Fatma The economic cost needed to recovery of such Copper slag is one of the by-product materials from the copper smelting In Indonesia around 400 000 tons of copper slag are produced per year by Freeport Company and

Effect of CaO Addition on Iron Recovery from Copper

Laboratory and pilot plant investigations have indicated that copper recoveries of 50 can be achieved with fine grinding and flotation of a copper reverberatory furnace slag Microscopic and microprobe studies indicate that the recoverable copper is in the form of matte chalcocite and metallic copper the percentage of copper in particles appearing to be copper-free was from 0 23 0 54

Iron Recovery from Discarded Copper Slag in a RHF Direct

Effect of CaO Addition on Iron Recovery from Copper Smelting Slags by Solid Carbon JUNG HO HEO BYUNG-SU KIM and JOO HYUN PARK We investigated the effect of flux lime addition on the

The Recovery of Copper from Smelting Slag by Flotation

Optimization of the flotation of copper smelter slags from Namibia Custom Smelters Slag Mill Plant Elias Sipunga A research report submitted to the Faculty of Engineering and the Built Environment University of the Witwatersrand in partial fulfillment of the requirements for the degree of Master of Science in Engineering

Why the world is demanding more cobalt and why new

Sep 29 2017· When designing processes for cobalt recovery it is important to analyze and overcome some of the technical challenges that lie ahead In terms of impurities manganese is the most troublesome impurity for cobalt recovery specifically from copper-cobalt ores in …

Recovery of Cobalt and Copper from Nchanga Mines Slag

ferrosilicon has the potential to increase the plant recovery of cobalt and copper from the CRF slag and consequently discarded in form of slag Referring to Figure 2 it can also be seen that an increase in coke dosage generally resulted in increased copper and cobalt recovery although the overall

Recovery of cobalt from converter slag of Chambishi Copper

reduction of metallic iron was evident when copper and cobalt levels in the slag fell below a lower value 18 This diluted the copper and cobalt levels in the matte and changed the properties of slag and eventually reduced the recovery of copper and cobalt Y Li et al JMM 54 1 B 2018 73 - 79 75

The Use of Granulated Copper Slag as Cement Replacement …

Recovery of Iron from Copper Flash Smelting Slags Figure 3 shows the rapid decreasing of copper content in the slag during the first 15 min-utes with the graphite rod introduced into the melt while the iron concentration is main-tained almost constant over same period of …

Recovery of copper cobalt and zinc from copper smelter

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 …

A study on copper recovery from the slag of Outokumpu

Recovery of copper from smelting slag by sulphation roasting and water leaching 411 Materials and experimental methods Experiments were conducted using a reverberatory furnace slag from the Bor Copper Concentrator Serbia The slag was sampled from the crushing line before entering the milling section of the concentrator