How Mineral Ores Are Processed PDF

How mineral ores are processed Title and Content Layout with List ▪ Add your first bullet point here ▪ Add your second bullet point here ▪ Add your third bullet point here ▪ Mining- the process of mineral extraction from a rock seam or ore. ▪ Mineral- a naturally occurring element or compound...

How mineral ores are processed Title and Content Layout with List ▪ Add your first bullet point here ▪ Add your second bullet point here ▪ Add your third bullet point here ▪ Mining- the process of mineral extraction from a rock seam or ore. ▪ Mineral- a naturally occurring element or compound. ▪ Ore- a rock or sediment containing a high percentage one or more mineral. It can also be a mineral consisting of important solid element/mineral. (ORE) (ORE) (ORE)  2 Methods of Mining ▪ SURFACE MINING ▪ UNDERGROUND MINING -is used to extract ore -is used to extract the rocks and minerals near the surface minerals that can be found beneath of the earth. The soil and the earth’s surface. In underground rocks that covered the mining, miners need to create a tunnel ores are removed through so they can reach the ore minerals. blasting. Blasting is a This kind of mining is more expensive controlled use of and dangerous as compared to surface mining because miners need to use explosives and gas explosive devices to remove the exposure to break rocks. minerals from the rocks that cover them.  2 Methods of Mining ▪ SURFACE MINING ▪ UNDERGROUND MINING Carmen Copper Mine in Maco mine by Apex mining Co. Cebu  TYPES OF SURFACE MINING 1. Open-pit mining- This is the most common type of surface mining. Open pit means a big hole (or pit) in the ground. The pit in mine is created by blasting with explosives and drilling. It is used to mine gravel and sand and even rock.  SURFACE MINING 2. Strip mining – This mining type involves the removal of a thin strip of overburden (earth or soil) above a desired deposit, dumping the removed overburden behind the deposit, extracting the desired deposit, creating a second, parallel strip in the same manner and depositing the waste materials from that second (new) strip onto the first strip. This mining method is used for coal, phosphates, clays, and tar mining.  SURFACE MINING 3. Dredging – This is the process of mining materials from the bottom of a body of water, including rivers, lakes, and oceans. Underground Mining Underground mining is the process of extracting minerals, rocks and other industrial materials other than oil, coal and gas from the earth through the development of shafts and entries from the surface to the deposits or seam before recovering the products and using underground extraction methods.  Mineral processing Mineral processing is the process of extracting minerals 1. Sampling – is the removal of a portion which from the ore, represents a whole needed for the analysis of refining them, and this material. preparing these 2. Analysis – is important to evaluate the minerals for use. valuable component in an ore. This includes The primary steps chemical, mineral and particle size analysis. involved in processing minerals include: Mineral processing Mineral processing 3. Comminution – is the process where the valuable is the process of components of the ore are separated through extracting minerals crushing and grinding. This process begins by crushing from the ore, the ores to a particular size and finishes it by grinding refining them, and the ores into a powder form. preparing these 4. Concentration – involves the separation of the minerals for use. valuable minerals from the raw materials. The primary steps 5. Dewatering – uses the concentration to convert it involved in to usable minerals. This involves filtration and processing sedimentation of the suspension and drying of the minerals include: solid materials harvested from this suspension.