Notes OCCURRENCE AND EXTRACTION OF METALS

The process of extracting the metals from their ores and refining them is called metallurgy. The choice of the process depends upon the nature of the ore and the type of the metal. The metal content in the ore can vary depending upon the impurities present and chemical composition of the ore

Processing of Nickel Laterite Ores on the Rise

Image: Nickel Ore Dryer. Some novel processes may employ pelletizing at this stage of the process, where drying also facilitates pulverization of the ore in preparation of processing on a disc pelletizer.. Pelletizing may also be used as a means of reintroducing recycle to the process.

Process Safety Management (PSM) - Module Two - Overview

Process Safety Management (PSM) - Module Two - Overview of the PSM Rule Subject: PSM Training Presentation Author: Division of Occupational Safety & Health (DOSH) Keywords: PSM Training Module 2, PSM rule training, DOSH PSM rule training Last modified by: Lynch, Michael H (LNI) Created Date: 6/21/2007 5:41:24 PM egory: Safety Training

CLASS - XII CHEMISTRY Metallurgy

• Roasting is the process of heating the ore strongly in the presence of excess or regular supply of air in a furnace at a temperature below the melting point of the metal. • Sulphide ores roasted Reduction of oxide to the metal: Reduction of the metal oxide usually

METALS AND MINING - IBEF

minerals, 10 metallic minerals, 23 non-metallic minerals, 3 atomic minerals and 55 minor minerals (including building and other minerals). 100 per cent FDI allowed in the mining sector and exploration of metal and non metal ores under the Automatic Route. Approval of MMDR Bill (2011) to provide better legislative environment for

Industrial wastewater treatment - Wikipedia

Industrial wastewater treatment describes the processes used for treating wastewater that is produced by industries as an undesirable by-product. After treatment, the treated industrial wastewater (or effluent) may be reused or released to a sanitary sewer or to a surface water in the environment.. Most industries produce some wastewater.Recent trends have been to minimize such production or

Metallurgy - Definition, Principles & Examples

This process is known as pulverization. 2. The concentration of ores: The process of removing impurities from ore is known as a concentration of minerals or ore dressing. In metallurgy, we concentrate the ores mainly by the following methods. 3. Hydrolytic method: In this method, we pour the ore over a sloping, vibrating corrugated table with

PowerPoint Presentation - Minerals and Rocks

Compounds of metallic ions and oxygen. Important for many metal . ores. needed to make things (e.g., iron, chromium, titanium) Ores are economically useful (i.e., possible to mine) mineral deposits

02. Extracting Metals.ppt | Redox | Metals | Free 30-day

In industry, an ore is a rock that contains enough metal to make mining and extraction economical. However, the value of ores changes over time due to society and technology. For example, rocks containing only 5% copper would have been considered unprofitable in the 19th century. Today, most copper comes from ores containing 0.4 to 1% copper. 5

Metallurgy - SlideShare

Oct 28, 2017· • The separation of mineral from gangue is known as mineral processing. 5. EXTRACTIVE TECHNIQUES • It is the process of removing impurities or undesired materials from the ore leaving behind the required metal. • Different process followed are i. Hydraulic washing ii. Magnetic separation iii. Froth floatation iv. Leaching 6.

General Principles and Processes of Isolation of Elements

B) Isolation of the metal from its concentrated ore: i) Conversion of Ore in to Metal oxide: → Roasting: The process in which the ores are heated in presence of excess of oxygen. This process is mainly used for Sulphide ores. ZnS + O 2 ZnO + SO 2 →Calcination: It involves heating when the volatile matter escapes leaving behind the metal oxide.

Metal extraction slides

Sep 03, 2014· Metal extraction slides 1. 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.g. the recycling of iron (b) discuss the social, economic and environmental issues of recycling metals Iron (a

PPT – MINERAL RESOURCES PowerPoint presentation | free to

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METALS AND MINING - IBEF

minerals, 10 metallic minerals, 23 non-metallic minerals, 3 atomic minerals and 55 minor minerals (including building and other minerals). 100 per cent FDI allowed in the mining sector and exploration of metal and non metal ores under the Automatic Route. Approval of MMDR Bill (2011) to provide better legislative environment for

PPT – Extraction of metals from their ores PowerPoint

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METALS AND NON-METALS.ppt - Google Slides

The oxide ore is then reduced to the metal by heating with a reducing agent. The most common reducing agent is coke (carbon). Eg :- ZnO + C Zn + CO. heat. heat. heat. Thermit reactions:-Sometimes reactive metals like Na, Ca, Al etc. are used as reducing agents to obtain metals from their oxides. Eg :-

11.24 Metallic Minerals Processing

process of separating valued minerals from the matrix rock. The nuer of crushing steps necessary to reduce ore to the proper size vary with the type of ore. Hard ores, including some copper, gold, iron, and molybdenum ores, may require as much as a tertiary crushing. Softer ores, such as some uranium, bauxite, and titanium/zirconium ores, require

Presentation On Copper, Cu - SlideShare

Feb 16, 2011· Presentation On Copper, Cu Craig S. Thames, PE A Little About Copper§ Distinctive Reddish Orange Color§ Mostly Found In Ore Form§ Density = 8.9 g/cm3§ Melting Point = 1083°C§ Boiling Point =2595°C 3 4. History Of Copper 4 An Excellent Thermal Conductor• 2nd Best Heat Transfer Metal (400W/m°K)• Ag (429W/m°K), Al (250W/m°K

iron ore beneficiation equipments ppt

Tonogold – Iron Ore Mexico. This presentation contains certain statements which may constitute Simple ore beneficiation process Additional mining equipment purchased from cash.get price. iron ore beneficiation process ppt - . Jul 19, 2013 Get the price of machines:

PowerPoint Presentation

* * Introduction OAW is a welding process that heats the base metal with a controlled mixture of acetylene and oxygen gas. Mild Steel Welds Mild Steel Welds Factors Affecting the Weld Step 7&8 Coupling Distance and Torch Manipulation PowerPoint Presentation PowerPoint Presentation PowerPoint Presentation If the buildup on both welds is