Copper flotation process pdf

Until quite recently copper ore had to be handpicked if the extraction of the metal was to be economical. Optimization of reagent dosages for copper flotation using. Graderecovery performance of a hypothetical copper ore flotation process. They have a common theme in that pyrite forms the principal floatable. Pdf bulk flotation of complex copper ore khmer lee. Materials the nickel copper sulphide ore used in this study was supplied by trojan nickel mine located in bindura, zimbabwe. 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. Innovations in copper mineral processing technology. Various process chemicals are used in the froth flotation of metallic ore of uranium, copper, zinc, lead, and iron. May 05, 2010 froth floatation process froth flotation is a process for selectively separating hydrophobic materials from hydrophilic. This flowchart made of machinery icons explains or expresses in simple but clear terms the step of the copper mining and copper extraction process starting from either openpit or underground mining and using a different relevant treatment method for oxide or sulphide copper mineral ore.

Another method of concentration of ores is the froth flotation method. In a twostage process, the skimair is used as a rougher unit to produce a lower grade concentrate at. Reagent schemes used for the treatment of porphyry copper and copper molybdenum ores are relatively. This is used in mineral processing, paper recycling and wastewater treatment industries. Metallurgical contenta copper flotation flowsheetcopper miningcrushing copper orecopper ore storagegrinding copper orecopper flotation circuitcopper thickening and filteringprocess controlscopper flotation process summaryflotation of copper ores although basic porphyry copper flotation and metallurgy has remained virtually the same for many years, the. Pdf froth flotation is the most common technique used in beneficiation of complex structured valuable sulphide minerals as chalcopyrite, galena.

Therefore, the main objective of the study was to optimize the process parameters for the flotation of base metals from a nickel copper sulphide ore. To maximize the yield of copper, ph control is necessary in the flotation tanks. The metallurgical behaviour of fluorine in the flotation process is also discussed. Sulphide flotation an overview sciencedirect topics. Our commercial columns are up to 6 metres in diameter, and are being used in most of the worlds largest copper concentrators. Heavy medium separation is the process of separating copper ores by a specific medium ferrosilicon density. Recognition of the operational statuses of reagent addition. It is shown that the underground mine water has a deleterious effect on flotation performance. Investigation of flotation parameters for copper recovery from. The single stage process can be recovery or gradedriven. Pdf copper is most commonly present in the earths crust as copperironsulphide and copper sulphide minerals, for example, chalcopyrite.

In commercial plants, the control of reagent additions is the most important aspect of the flotation strategy6. Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic. It made possible the development of the giant bingham canyon mine in utah. The figure above is a simplified flow sheet showing the basic steps involved in a copper mill producing the byproduct molybdenum. Advanced ph controllers were implemented to ensure a desired ph control that promotes selectivity of nickel and copper at bulk flotation and separation circuits respectively. Ngandu synopsis the experience of mufulira concentrator, of the zambia consolidated copper mines limited, with underground mine drainage water, which is used in milling operations is discussed. Us4022686a flotation process for copper ores and copper. Many complex ore mixtures formerly of little value have become major sources of certain metals by means of the flotation process. The analysis of the results indicates that the advanced process control apc system has improved the.

The particles with attached air bubbles are then carried to the surface and. Froth flotation process for copper pdf ball mill is the key equipment for grinding after the crushing process, which is widely used in the manufacture industries, such as cement, silicate, new building material, refractory material, fertilizer, ferrous metal, nonferrous metal and glass ceramics and can be used for the dry and wet grinding for. Flotation plants, process control, online analyser, grinding circuit, benefits from process control system. The sulfurized samples were subjected to flotation and the results were evaluated. Modeling and control of lime addition in a flotation process rasmus tammia. Water quality, flotation equipment size and type, temperature, and ore body variation are just a few of the variables affecting the flotation process. The impact of water quality on flotation performance. In fact, in the last century, ores of 4 percent grade were regarded as almost valueless. A flotation pretreatment study for the separation of enargite cu3ass4 from chalcopyrite cufes2 ores of different origins was investigated in. In this study, we attempted flotation of oxidized copper ore.

Flotation can separate this mineral from waste materials or from another mineral. 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. Pdf copper is most commonly present in the earths crust as copperiron sulphide and copper sulphide minerals, for example, chalcopyrite. The platsol process was originally developed in collaboration with the university of british columbia, kane consultants ltd. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century. Recovery of values from a porphory copper tailings stream michael j. Chilean copper commission cochilco, 2008, best practices and efficient use of water in the mining industry. Metallurgical contenta copper flotation flowsheetcopper miningcrushing copper orecopper ore storagegrinding copper orecopper flotation circuitcopper thickening and filteringprocess controlscopper flotation process summaryflotation of copper ores although basic porphyry copper flotation and metallurgy has remained virtually the same for many years, the processing equipment as well as design of. In a twostage process, the skimair is used as a rougher unit to produce a lower grade concentrate at high recovery, and an outotec tankcell is used as a cleaner to. A new application for flotation of oxidized copper ore. Thebehaviourofminerals insulphideflotation processes.

This process design is compatible with the kundip metallurgical domains but not compatible with the trilogy metallurgical domains because of the elevated silver to gold ratio in these ores. Up to now, sulfide flotation is still one of the most widely used processes in copper oxide ore dressing, but it is unable to solve the problem of low. Master of science thesis in electrical engineering modeling and control of lime addition in a flotation process rasmus tammia lithisyex175071se supervisor. Hydrophobicity differences between valuable minerals and waste gangue are increased through the use of surfactants and wetting agents. Copper flotation process with the measurement setup. Our range of sparging technologies allow us to choose the right sparging technology for your application. Investigation of copper recovery process from flotation tailings background of the study copper mining and ore processing is one of the most stable and profitable branch of the polish economy and one of the fastest growing industry. In this video i discussed trick to learn froth flotation process metallurgy tricks. A very simple status recognition method is presented in this paper to the operational status recognition based on the bayesian inference after the statistical distribution features under predefined operational statuses typical operational statuses of reagent addition are learned. First results exhibit cu recov eries of 50 % with cu concentrations of about 5 %.

Flotation of nonsulfide copper minerals is rare because these ores are mostly subjected to hydrometallurgical copper recovery, for example, heap leaching. Ball mill is the key equipment for grinding after the crushing process, which is widely used in the manufacture industries, such as cement, silicate, new building material, refractory material, fertilizer, ferrous metal, nonferrous metal and glass ceramics and can be used for the dry and wet grinding for. Hellyers sequential flotation circuit versus cadias simple copper gold flotation circuit. Optimization of the flotation of copper smelter slags from.

Froth floatation process froth flotation is a process for selectively separating hydrophobic materials from hydrophilic. The flotation process can separate a required mineral such as copper, nickel, molybdenum or zinc from ore. In conventional flash flotation, a skimair cell is operated as a standalone cell in a single stage process. Consequently, the development of the froth flotation process was a major step forward in mineral processing. Flotation of copper sulfide ores pdf free download. Mustafa umit 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. Investigation of copper recovery process from flotation. Crushed ore containing 1 to 2 % copper, along with water and a lime. Modeling and control of lime addition in a flotation process. When this was unsuccessful, we used a sulfurization process developed in our previous studies. During the flotation of copper molybdenum ores, fuel oil or kerosene is added to the grinding to enhance molybdenum recovery. Rich copper concentrate is produced from crude copper sulfide ore by means of a flotation process that takes advantage of the physical and chemical properties of small copper ore particles. A block diagram showing the overall flow sheet is shown in figure 1. Copper flotation process mining separating minerals by flotation measurement made easy introduction the flotation process can separate a required mineral such as copper, nickel, molybdenum or zinc from ore.

Froth flotation of copper and copper compounds from fine. Thus, before the flotation, process of sulfurization was made in order to change the ore structure and surface properties 9, 10 and 11. Flotation circuit optimisation and design imperial spiral. 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. Inthisregard, itis pertinent torepeat thecomments of woodburnl, that theformulation of flotation models can only be improved ifaclear understanding of therolethat themodelisdestined to. Flotation is widely used to concentrate copper, lead, and zinc minerals, which commonly accompany one another in their ores. Froth flotation is a process for separating minerals from gangue by taking advantage of differences in their hydrophobicity. The performance of each of these process routes depends on the degree of oxidation as predicted by the proportion of acid soluble copper present in the ore. The types and quantity of the reagents are the most important part of the flotation process. The effect of sulfurization process on flotation of copper.

Aylmore, in gold ore processing second edition, 2016. Copper processing is a complicated process that begins with mining of the ore less than 1% copper and ends with sheets of 99. Main areas where development efforts in full swing are equipment, reagents and process control. In the twentieth century, most ores were concentrated before smelting. Chalcopyrite also known as copper pyrites and similar sulphide ores are the commonest ores of copper. Copper ion exchanges for zinc ion of the mineral surface, and the sphalerite particle then behaves in flotation like a copper sulphide particle. Jun 16, 2014 the flotation machine is used for the separation of the nonferrous black metal as well as the separation of the nonmetallic materials such as the coal fluorite and the talc. The effect of underground mine water on performance of the. Estimated water requirements for the conventional flotation of. Recovery of copper from oxide copper ore by flotation and leaching kiraz, emirhan m. Materials the copper ore containing gold and silver used in this study was obtained from.

The flotation chemicals are mainly isooctyl acid phosphate, sodium isopropyl xanthate and potassium amyl xanthate as conditioner and collector, mibc as frothers, and sodium cyanide and copper sulfate as depressors. This presentation will outline the role of innovation and cite several historical examples such as the bayer and hall heroult processes, cyanidation, froth flotation, the kroll process, rare. The most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and pyrometallurgy, respectively, due to the different. Rich copper concentrate is produced from crude copper sulfide ore by means of a flotation process that takes advantage of the physical and chemical properties. Introduction flotation is the most comprehensive and versatile mineral processing operation. Advanced flotation process control system at a base metal.

This paper sets out to provide justification for the development of this methodology to examine process water quality and treatment integrated with mineral surface chemistry and separation or leaching response across the complete. Introduction to mineral processing chevron phillips chemical. A continuous process called floatation, which uses water, various flotation chemicals, and compressed air, separates the ore into fractions. Froth flotation is a very important mineral concentration process that is used to recover a vast array of different minerals containing valuable commodities such as copper, lead, zinc, nickel, molybdenum, tungsten, silver, gold, phosphate and potash. This report provides a perspective on the amount of water used by a conventional copper flotation plant, including the makeup water required to compensate for water losses.

The floatability of molybdenum during copper flotation also depends on many factors, including type of collector, type of frother, flotation ph and type of hydrocarbon oil used. This is the process for concentration of primarily sulphide ores. Luttrell2 1eriez flotation division 2200 asbury road erie, pennsylvania usa 16506 corresponding author. Copper recovery, froth flotation, municipal solid waste incineration.

The ores typically contain low percentages of copper and have to be concentrated by, for example, froth flotation before refining. Report on flotation pilot plant design and arrangement. Cupriferous mica, chalcocite, bornite, chalcopyrite, malachite and pseudomalachite were the significant copper. Estimated water requirements for the conventional flotation of copper ores. As a result of this process a new surface forms on the oxidized copper particles and flotation. Introduction ok tedi mining limited otml mines and concentrates 600 000 tonnes of copper concentrate annually in the star mountains of the western province of. Process parameters must be aligned to optimize the recovery and grade. Separation of special copper ores such as those containing molybdenite or with high zinc or lead content canada is also possible by flotation methods. Efd is the leading supplier of with over 170 installations worldwide.