Nextraction of copper from its ore pdf files

Metals extraction of metals in this gcse chemistry quiz, one of a series on metals, we look at the extraction of metals such as copper from both high grade and low grade ores. The ore is crushed into a fine powder and a suspension is created in water. The ore is a mixture of minerals and rock called gangue. An investigation was carried out to study the dissolution of cobalt and copper from a cu co oxidized ore using organic acids. Options a carbon monoxide b copper i sulphide c sulphure dioxide d iron ii sulphide. Environmental protection agency office of solid waste special waste branch 401m street, sw washington, dc 20460. I know that it is used in froth flotation, but when else is it used. Underground mining is achieved by sinking shafts to the appropriate levels and then driving horizontal tunnels, called adits, to reach the ore. Pdf extraction of copper and cobalt from oxidized ore. Copper production about 80 % of primary copper production comes from lowgrade or poor sulfide ores. Conversion of cuii ion into copper metal via electrolysis.

The most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and pyrometallurgy, respectively, due to the different. The method used to extract copper from its ores depends on the nature of. It depended on the remarkable property possessed by nickel of. This page looks at the extraction of copper from its ores, its purification by electrolysis, and some of its uses. The ore samples were pulverized to 250 micro millimetres and leached. Copper minerals and ores are found in both igneous and sedimentary rocks. Go to the download section to access zip files of all resources for each subject. The mond process marked an entirely new departure in metallurgical practice and in the principles which had hitherto guided it. Hydrazones are prepared by bubbling chlorine in chicken dung leached solution. The percentage of copper in the actual ore is too low for direct extraction of copper to be viable. Extraction of copper from oxidised copper ore essay sample.

Sulphide ores such as chalcopyrite are converted to copper by a different method from silicate, carbonate or sulphate ores. Epa530r94031 ntis pb94200979 technical resource document extraction and beneficiation of ores and minerals volume 4 copper august 1994 u. In the extraction of copper from its sulphide ore, the metal. This means it is not consumed and can be used and reused. To this are added, collectors and froth stabilizers. G in kjmol values of 250 and 400 at 500k, respectively.

Growing role of solvent extraction in copper ores processing article pdf available in fizykochemiczne problemy mineralurgii 4242. Pdf copper extraction by wet chemical method researchgate. Ores containing 4% or more copper are treated by smelting process. Copper extraction refers to the methods used to obtain copper from its ores. The paper presents results of extraction of copper ii from ammonia leach solutions. Class12 cbse board extraction of copper and zinc from their oxides learnnext offers animated video lessons with neatly explained examples, study material, free. Pdf clean and efficient extraction of copper ions and deposition. Extraction of copper from oxidised copper ore essay example. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors. Mining of copper ores is carried out using one of two methods. Copper recovery using leachsolvent extractionelectrowinning technology 65 figure 2 and a catalytic amount of lix 63, was introduced in 19657 and in march 1968 the first commercial copper lsxew operation, the bluebird plan of ranchers exploration and development corporation, came on line1. Classroom resources extracting copper from ore aact.

Copper derives its value from its outstanding properties which include high electrical and thermal conductivity, malleability, and toughness. Accordingly twentyfiv grame s of ore wer e well mixed with an equal quantit sodiuy of peroxidm e and the mixture transferred to a fire cla crucibley ignitio. On industrial scale copper is extracted from its sulphide ore known as copper pyrite cufes 2 by smelting method. Extraction of copper pdf free download as pdf file. The concentration of ore is required and it is done by the froth flotation method. Underground mining is, however, relatively expensive and is.

Growing role of solvent extraction in copper ores processing 31 solvent extraction, in which the aqueous pregnant leach solution pls is vigorously mixed with an organic solvent, selectively recovers copper from pls, being acidic or ammonia solution. Extraction of copper by smelting process following steps are involved in the extraction of copper. Apr 06, 2012 2 powerpoints to cover 2 lessons on the extraction of copper from copper carbonate for high ability year 9. In this esource, well look at the ways of extracting copper from the ground. Hence, he named this new element after the traditional mineral. The metal completely dissolves out of copper concentrate or slag in the aerobic eutectic molten chloride salt in a graphite or glassy carbon pot, which serves as. The life cycle of copper, its coproducts and byproducts. Oct 14, 2019 in this lab, students extract copper from copper carbonate using two different methods, and then determine which industrial method is most effective. The copper mine in picture 4 produces 6 tonnes of copper from every tonnes of ore. Swedish scientist baron axel frederich cronstedt in 1751 finally isolated nickel from an ore closely resembling kupfernickel.

Extraction of copper from copper ore teaching resources. It is a measure of the value of copper that it is worth extracting it from such small concentrations. Copper is infinitely recyclable without losing any of its properties. What is the second step in the extraction process of copper from its ore. Even from the data of experiment 1 shown in table 2, it can be seen that sulfurization compared with direct roasting causes about a 10% increase. Comparing the extent of the dissolution of coppercobalt ores. Beneficiation by froth flotation of ore to give copper concentrate. To analyse how copper is obtained from oxidised copper ore using the processes of leaching, solidliquid separation, displacing and electrowinning. Purification of copper by electrolysis extraction from ore above the impure copper from a smelter is cast into a block to form the positive anode. Blocks of blister copper are used as anodes and thin sheets of pure copper act as cathodes. Apparently in the extraction of copper from its ore, water is used at least 3 times. Copper and cobalt are commodities of great economic value. In the following experiments, the mixture of oxidized copper ore and converter.

Aerial view of the opemiska copper mines quebec ltd. To analyse how copper is obtained from oxidised copper ore using the processes of leaching, solid. They had 20 questions yesno answers as a class to work out the method of extraction and risk assess it. Chapter 6 copper production technology the last boomin technological innovation for the copper industry occurred in the first two decades of this century, whenopen pit mining, flo tation concentration,and the reverberatory smelter were adapted to porphyry copper ores. Copper extraction by wet chemical method sciencedirect. Further, through the use of biooxidation, it is now possible to leach many of the copper sulfide minerals present in the ore. Extraction of copper from its ore by frein jarane castaneda. Copper processing is a complicated process that begins with mining of the ore less than 1% copper and ends with sheets of 99. The extraction of nickel from its ores by the mond process 1. The revovery of copper and cobalt from oxidized copper ore. However this is not the same as the percentage of copper in the ore as that also.

Go to the download section to access zip files of all resources for each subject and age group for use offline. The ore used in this study originated from the central african. In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide with. The ore contains some copper mineral and lot of waste rock. This is a pdf file of an unedited manuscript that has been accepted for publication. What links here related changes upload file special pages permanent link page information wikidata item cite this page. Class12 cbse board extraction of copper and zinc from their oxides learnnext offers animated video lessons with neatly explained examples, study material, free ncert solutions, exercises and tests. The effect of a type of extractant, its concentration and type of diluent in organic phase on extraction efficiency and ammonia transfer was studied. The extraction of nickel from its ores by the mond process. The townsite of chapais which serves the mine community is complete with all the necessary services including. The electrolyte is copper sulphate cuso4 mixed with a little amount of h2so4 to increase the electrical conductivity. At the time of its discovery nickel was thought to be useless but as its valuable properties came to light the demand for the metal increased.

Nov 17, 2012 conversion of cuii ion into copper metal via electrolysis. The second reaction is reversed to produce a more negative. This video was developed for rio tinto and has won multiple. Aug 21, 2009 this video showcases the importance of copper in our society. Faqs with regards to operating a cu er tankhouse above 400 am2 pdf. The knowledge of how to extract metals from their ores has played an incredibly important role in every known civilisation. After enrichment steps, the copper concentrates are usually treated by pyrometallurgical methods. When is water used in the extraction of copper from its ore. By the end of this lesson, students should be able to. This video showcases the importance of copper in our society. What is the second step in the extraction process of copper. The method used to extract copper from its ores depends on the nature of the ore. Pdf growing role of solvent extraction in copper ores. Extraction of copper and zinc from their oxides learnnext.

Chalcopyrite also known as copper pyrites and similar sulfide ores are the commonest ores of. Extraction of one tonne of copper from ore with a grade of 1 percent. The ore is fed to a crusher where it is broken down to a specified maximum size and passed through to a conveyor. Chemistry books extraction of copper from copper pyrites. While chalcopyrite remains refractory to ambient temperature bioleaching, other copper sulfide minerals the secondary sulfide minerals such as chalcocite, covellite, bornite, etc. Extraction of copper mining, concentration, smelting. Ayres et al the life cycle of copper, its coproducts and byproducts vi table 5. It also explores the mining of sulphide ores and the subsequent extraction of copper. These are dipped into an electrolyte of copper ii sulphate solution. Copper recovery using leachsolvent extractionelectrowinning. Copper is extracted from its ore by two principal methods. It walks the viewer, stepbystep, through the entire refining process. Energy consumption, emissions, wastes and byproducts from the production of 1 tonne of copper from secondary materialsa, germany 1992.

Very poor ores are treated by hydrometallurgical process. Pdf extraction of copper and cobalt from oxidized ore using. Extraction of copper from sulphide ore large amount of copper are obtained from copper pyrite cufes2 by smelting. Just like in blast furnaces, calcium carbonate is added as a flux to create the slag. Introduction the opemiska mine property is in levy township in chibougamau area of quebec and is comprised of 487 acres of patented claims contiguous with 2,215 acres held under development license. Lesson one students were shown one set of equipment and a lump of malachite.

Before you get too bogged down in the extraction of copper, make sure that you need it for whatever syllabus you are using. In the rst experiment the oxidized copper ore was sulfurized under autoclave conditions. About 80% of all copper extracted comes from sulphide ores. Copper smelting means that the concentrated ore is heated strongly with silicon dioxide silica, calcium carbonate caco 3 and air in a furnace. Generally, copper extraction follows the sequence see figure below. The cathode plates are coated with graphite in order to remove depositing copper. The leaching process used by the copper mining industry is known as solution. The conversion of copper consists of a series of physical and electrochemical processes. There are many steps in the extraction of copper, which are given below.