Methods of extracting metals by jake eyers on prezi. View and download powerpoint presentations on extraction of metals ppt. Boardworks ltd 20066 of 27 there are two main ways of extracting metals from their ores. The metal in the ore is said to be reduced by reaction with carbon when is electrolysis used for extraction. Also, some sulfidic ores that are too lean to treat by flotation are also leached in heaps or dumps. Apr 07, 2015 a quick animation about extracting metals from ores and the reactivity series.
They are used for making machines, railways, motor vehicles, bridges, buildings, agricultural tools, aircrafts. May 15, 2011 mr crooksextraction of metals from their ores slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Metals are extracted from their ores in three main steps. When the metal is dug up, a method must be used to separate the metal from the rest of the ore. Metals can be extracted from ores using a range of methods. Most metals are found combined with other elements, as compounds in ores. Topic 4 extracting metals and equilibria education using. Chemistry 4 chemical changes education using powerpoint. The south african mining industry alone employs 800,000 people. The extraction of metals and minerals is the fifthlargest industry in the world. The majority of metals do not occur native and, instead, are compounds like sulphides or oxides.
Ppt metals and their properties powerpoint presentation. The basic step of extracting metals is called concentration of ores. Extracting the required metal using a suitable process. The knowledge of how to extract metals from their ores has played an incredibly important role in every known civilisation. Can contain metals, other elements, and nonmetallic minerals.
Extraction of metals chemistry science made by my teacher mrs. 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. Mixed oxide and sulfide copper ores are leached following the same process stages as in figure 4. An ore is a mineral, which is a metal compound that contains enough quantity of the metal to be extracted.
These metals need to be separated from the other elements that they are combined with using chemical reactions. The recovery of metals from sulfides in this way utilizes bacteria either naturally present or inoculated into the material. Methods of extraction of metals from ores chemistry. Give two methods for extracting copper from lowgrade ores bioleaching using bacteria. The process of extracting the metals from their ores and refining them is called. This makes it more difficult for the layers to slide over each other, so alloys are harder than the pure metal.
Ppt extracting metals from ores powerpoint presentation, download presentation extracting metals from ores an imagelink below is provided as is to download presentation download policy. Metal extraction slides share and discover knowledge on. Chemistry of elements metals and their alloys are extensively used in our daytoday life. The ores are very different from the finished metals that we see in buildings and. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Extraction of metals a describe the ease of obtaining metals from.
Chemical changes reactivity of metals more resources by this contributor 3. So non oxide ores are converted into oxide form before reduction. These compounds are called minerals and a rock which contains a mineral is known as an ore. These transformations may produce pure metals, or intermediate. Feb 14, 2008 powerpoint presentation for gcse chemistry on metals. Metals in the middle of the activity series like zn, fe, pb, are found as oxide, sulphide or carbonate ores. The unreactive metals are removed form their ores simply by heating. Mr crooksextraction of metals from their ores slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Isolation of elements in chemistry class 12 aims to teach the students about various processes of extraction of metals from ores. Most metals are extracted from naturally occurring compounds called ores, which are mined from the ground. The process of extracting metal ores buried deep underground is called mining. Extraction of metals from ores powerpoint ppt presentation oct 09, 2014 download presentation extraction of metals from ores an imagelink below is provided as is to download presentation download policy. What is a metal ore a solid element or compound which occurs naturally in the earths crust is called a mineral.
We are a largescale manufacturer specializing in producing various mining machines including different types of sand and gravel equipment, milling equipment, mineral processing equipment and building materials equipment. Electrolysis uses electricity to extract metal from ores. Content on the website is provided to you as is for your information and personal use and may not be sold licensed shared on other websites without. Why can one method be used to extract one metal, but not another. Definition of extraction of metals free physics dictionary.
Extracting metals from sulfide ores electrochemistry knowledge. Ores contain enough metal to make the extraction of that metal economic. The properties of a metal are changed by adding other elements to it. As a result metals must be mined and then separated from their ores by metal extraction extraction of metals from their. Dec 15, 2011 extracting metals from their ores pearsonmy. Pyrometallurgy pyrometallurgy uses high temperatures to transform metals and their ores.
Content on the website is provided to you as is for your information and personal use and may not be sold licensed shared on other. An ore is a rock or mineral that has enough metal in it to make it worth extracting. A mixture of two or more elements, where at least one element is a metal, is called an alloy. When the electricity is turned on the the metal becomes. Gcse chemistry extraction of metals what is a metal. Two graphite electrodes are lowered into the solution one positive anode and one negative cathode. Archaeometallurgy is one of the most interdisciplinary of all branches of historical. Instead they exist combined with other elements typically o or sulphur as. The process of extracting the metals from their ores and refining them is calledmetallurgy. First the metal usually as an oxide is made into a solution. Topic 4 extracting metals and equilibria education.
The picture shows extraction of iron ore in a mine. The choice of the process depends upon the nature of the ore and the type of the metal. This presentation steps students through extracting metals from ores as well as the recycling of aluminium as aligned with the australian year 11 chemistry. Displaying powerpoint presentation on extracting metals from theirores igcse coordinated sciences available to view or download. Extraction of metals methods of extraction of metals. Extracting metals from theirores igcse coordinated sciences. Copper processing powerpoint oresome resources oresome.
Extraction of metals low in the activity series the ores of the metals are generally sulphides which is reduced by heating in the presence of oxygen name the process in which ore is heated in presence of oxygen. Mining copper about 200 years ago the uk was an important world source of copper and tin and there were mines in cornwall and devon. These transformations may produce pure metals, or intermediate minerals or alloys, suitable as feed for other refining or commercial applications. Find powerpoint presentations and slides using the power of, find free presentations research about extraction of metals ppt. General principles of extraction of metals the process of extracting the metals from their ores and refining them is calledmetallurgy. Pyrometallurgy uses high temperatures to transform metals and their ores. Ppt extracting metals from ores powerpoint presentation. Ppt extraction of metals from ores powerpoint presentation. Metals such as zinc, nickel, tin, lead and copper need to be heated with carbon or carbon monoxide to extract them. Metals that are found in the ground as uncombined elements do not require further extraction. Extraction of metals a describe the ease of obtaining metals from their ores by relating the elements to their positions in the reactivity series recycling of metals a describe metal ores as a finite resource and hence the need to recycle metals, e. Whole lesson covering the content of aqa 91 chemistry c14.
The occurrence of metals in nature is only a part of the process, these metals also have to be extracted. Occurrence and extraction of metals module 6 chemistry of elements 16 occurrence and extraction of metals metals and their alloys are extensively used in our daytoday life. Download the powerpoint resource subscribers only see other resources. Alloys contain atoms of different sizes, which distort the regular arrangements of atoms. Extracting metals from theirores igcse coordinated sciences powerpoint presentation. Iron is the 4th most plentiful element on earth almost never found in metallic state mixed with various compounds called ores mining natural ores of iron iron ore sources table 1. A free powerpoint ppt presentation displayed as a flash slide show on id. The metal ores are found in the earths crust in varying abundance. What methods can be used in extracting metals from mineral ores. The more reactive the metal, the more difficult it is to. Ppt metal extraction powerpoint presentation, free download id. The metal content in the ore can vary depending upon the impurities present and chemical composition of the ore. Including ores, reactivity, extracting iron, steel and alloys. Ppt extraction of metals from their ores powerpoint.
Non oxide ores can be converted into oxide form by roasting or calcination. Download extracting metals from theirores igcse coordinated sciences ppt for free. There are two main ways of extracting metals from their ores. The extraction of metals from ores is what allows us to use the minerals in the ground. Mining for ores is expensive and so is only carried out where minerals are abundant enough for this to be profitable. Metals less reactive than carbon can be extracted from their ores by. An ore is usually a compound of the metal mixed with impurities. Extracting metals from theirores igcse coordinated. Powerpoint presentation for gcse chemistry on metals. Details for the extraction of aluminium, copper, iron and titanium are.
In some places, the mineral deposits in rock contain a high concentration of one metal. After choosing a suitable process based on the reactivity of the required metal several precautions need to be taken since many ores do not contain just one metal hence a suitable process in which the metals can be separated needs to be used. This unit covers topic 4 from the 2016 edexcel course, including. This is a powerpoint presentation showing the properties, uses and extraction of copper. Rocks are a mixture of minerals and from some we can make useful substances. This page looks at the various factors which influence the choice of method for extracting metals from their ores, including reduction by carbon, reduction by a reactive metal like sodium or magnesium, and by electrolysis. If you continue browsing the site, you agree to the use of cookies on this website. It is easier to obtain metals from their oxides than from their sulphides or carbonates. An ore is a mineral deposit that can be mined and refined at profit. Jul 14, 2016 this presentation steps students through extracting metals from ores as well as the recycling of aluminium as aligned with the australian year 11 chemistry. Find out how copper ore is extracted and turned into copper metal. Apr 22, 2015 today, most copper comes from ores containing 0. Methods of extraction many metals are found in the earths crust as ores.
Use this powerpoint file to help teach the chemical changes topic 4 unit from the aqa syllabus. Refining of metals the metals extracted from ores is impure. Iron, however, is removed in a blast furnace, like the one. Occurrence and extraction of metals module 6 chemistry of elements 16 occurrence and. A mineral which contains a high enough percentage of a metal for economic extraction is called a metal ore. Bioleaching can be applied to various ore types through microbial generation of.
They are used for making machines, railways, motor vehicles, bridges, buildings, agricultural tools, aircrafts, ships etc. Jul 20 2014 download presentation extracting metals from their ores an imagelink below is provided as is to download presentation download policy content on the website is provided to you as is for your information and personal use and may not be sold licensed shared on other websites. Metals need to be extracted from ores before they can be turned into useful products, such as cars or cutlery. Extracting metals from their ores the majority of metals do not occur native and, instead, are compounds like sulphides or oxides. Metallurgy metallurgy is the science of extracting metals from ores. Metals above carbon in the reactivity series potassium, sodium, lithium, calcium, magnesium and aluminium are extracted by electrolysis. Extraction of metals from ores ppt download slideplayer. Extracting metals a quick 10 question quiz covering aspects of metal extraction.