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overburden and gangue in mining

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  • Reutilization of gangue wastes in underground backfilling ...

    2020-9-30 · Gangue backfilling mining (GBM) can effectively alleviate the gangue accumulation pollution and the overburden aquifer destruction. To efficiently evaluate the reutilization of gangue wastes by GBM and its advantage in overburden aquifer protection, non-Darcy hydraulic properties and deformation behaviors of granular gangues were studied through laboratorial, …

  • What is the waste material called that is left behind ...

    2016-3-20 · Gangue is the term you are looking for. In mining, gangue is the commercially worthless material that surrounds, or is closely mixed with, a wanted mineral in an ore deposit. It is thus distinct from overburden, which is the waste rock or materials overlying an ore or mineral body that are displaced during mining without being processed (Wiki).

  • APES mining review Flashcards

    Type of mining used where the terrain is flat. An earthmover strips away the overburden, and a power shovel digs a cut to remove the mineral deposit. After removal of the mineral, the trench is filled with overburden, and a new cut is made parallel to the previous one. The process is repeated over the entire site.

  • TENORM: Copper Mining and Production Wastes | US EPA

    2021-6-7 · This chemical reaction produces acid mine drainage (AMD), a pollutant that is present at many abandoned mine sites. Learn more about abandoned mine drainage. Copper mining waste storage piles may be as large as 1,000 acres and typically include three types of waste; tailings, dump and heap leach wastes, and waste rock and overburden.

  • Overburden

    2019-4-30 · Overburden Last updated April 30, 2019 Overburden at a coal mining site. In mining, overburden (also called waste or spoil) is the material that lies above an area that lends itself to economical exploitation, such as the rock, soil, and ecosystem that lies above a coal seam or ore body. Overburden is distinct from tailings, the material that remains after economically …

  • Chapter 6 Copper Production Technology

    1996-11-20 · (gangue) Copper minerals, iron and other metallic pyrites, byproducts, and gangue Same as mining but in the form of fine particles Copper minerals, iron pyrites, miscellaneous minerals (including valuable byproducts), and water (8-10%) Copper sulfide (CU2S), iron sulfide (FeS), byproducts, tramp elements, and up to 3°/0 dissolved oxygen

  • The Movement and Deformation Research about …

    The Movement and Deformation Research about Overburden Surface Filled by Coal GangueCN

  • Mechanics criterion and factors affecting overburden ...

    2017-5-1 · The factors affecting the stability of the overburden in solid dense filling mining were also analyzed, including the thickness and elasticity modulus of the main roof strata, overlying strata loads, advanced distance and length of workface, and elastic foundation coefficient of backfill body. ... Solid filling coal mining method uses gangue ...

  • PROBLEMS OF MINING WASTES MANAGEMENT IN …

    2013-3-7 · PROBLEMS OF MINING WASTES MANAGEMENT IN INDIA AND ITS SUGGESTIVE MEASURES – CASE STUDIES Dr. B. K. Pal1, Er. D. K. Khanda2 and S. Dey3 ABSTRACT Mining generates significant quantity of wastes, especially solid wastes in …

  • Recycling in Mining –Greener Possibilities

    2019-3-13 · Recycling in Mining –Greener Possibilities. World over, Waste Management has been the number one priority and challenging for more than a couple of decades now. Scarcity of resources and predictions of fast depletion in the near future has bothered even the United Nations and brought on heated arguments in the Earth summit and other ...

  • Reutilization of gangue wastes in underground backfilling ...

    Gangue backfilling mining (GBM) can effectively alleviate the gangue accumulation pollution and the overburden aquifer destruction. To efficiently evaluate the reutilization of gangue wastes by ...

  • APES Mining Unit Flashcards

    Gigantic mechanized equipment strips away the overburden of rocks and soil. Spoils. Overburden that is disposed of as waste material ... Surface Mining Control and Reclamation Act (1977) Requires mining companies to restore most surface-mined land by grading and replanting it. Gangue. The waste material from ore mining. Smelting. Roasting of ...

  • Height of overburden fracture based on key strata theory ...

    2020-1-24 · Among the three overburden zones (the caving zone, the fracture zone, and the continuous deformation zone) in longwall coal mining, the continuous deformation zone is often considered to be continuous without cracks, so continuum mechanics can be used to calculate the subsidence of overburden strata. Longwall coal mining, however, will induce the generation of …

  • Field Measurement and Study on Overburden Fracture and ...

    2021-12-9 · In order to predict the surface subsidence scientifically in solid filling mining, it is necessary to establish a complete subsidence prediction model and parameter system according to the evolution law of overburden structure and strata movement characteristics. Mine pressure monitoring and borehole peeping show that the overburden in solid filling mining is mainly a …

  • Mineral Processing Part 1

    1996-11-20 · (gangue) Copper minerals, iron and other metallic pyrites, byproducts, and gangue Same as mining but in the form of fine particles Copper minerals, iron pyrites, miscellaneous minerals (including valuable byproducts), and water (8-10%) Copper sulfide (CU2S), iron sulfide (FeS), byproducts, tramp elements, and up to 3°/0 dissolved oxygen

  • Chapter 2: An introduction to mining

    CHAPTER 2: AN INTRODUCTION TO MINING. This chapter covers mining and mining processes, machinery and methods used and how ore and waste rock travel within the mine complex. Mining projects generally involves extracting minerals from the ground and separating different minerals from each other. Extraction is typically carried out in an open pit ...

  • Theoretical Analysis on Stress and Deformation of ...

    2021-2-27 · fill, mining heights, and thicknesses of soft layers. 2. Mechanical Mole of Overburden Strata in SBCM In longwall mining, the overburden strata movement and deformation along tilt direction of the working face are the same, except both ends of working face. Therefore, the over-burden strata mechanical model in the central stope can be

  • Mine Waste Transfer and Disposal Methods

    Overburden -> Gangue -> Tailings. Overburden. Waste rock or overburden refers to the often large mass of initial soil and rock that is removed to get to the …

  • Subsidence prediction of overburden strata and ground ...

    2021-9-23 · Physical simulation. In order to reveal the overburden strata and ground surface subsidence of No. 1-2 seam mining, the physical simulation model was built with the following dimensions: 5 m long ...

  • Ore vs. Gangue

    2019-12-11 · Gangue In mining, gangue () is the commercially worthless material that surrounds, or is closely mixed with, a wanted mineral in an ore deposit. It is thus distinct from overburden, which is the waste rock or materials overlying an ore or mineral body that are displaced during mining without being processed, and from tailings, which is rock ...

  • Overburden And Gangue In Mining

    2020-8-15 · Overburden And Gangue In Mining - Gangue mineral for fluorite for gold mining Gangue Revolvy Dec 06 2015 In mining gangue [1] is the commercially worthless material that surrounds or is closely mixed with a wanted mineral in an ore deposit It is thus distinct from overburden which is the waste rock or materials overlying an ore or mineral body that are …

  • Mining Terms

    2008-11-12 · Overburden: is non-valuable minerals above ore which must be removed to extract the ore. Pit Limit: is the maximum vertical and lateral extent which may be excavated economically in an open pit mine. Pit Slope: is the angle from the horizontal which the wall of a open pit stands as measured from crest to toe.

  • Mine Waste Transfer and Disposal Methods

    Mineral Processing Part 1 | Geology for Investors

  • Tailings vs Overburden vs Other Materials

    Overburden is the term applied to all of the material that lies above the deposit of ore or minerals that are going to be removed. It is generally low in any kind of coal, ore, or other valuable material. It can include solid rock that is blasted or drilled out of place, but it also includes a large volume of mixed rock, sand, dirt, and even ...

  • Tailings vs Interburden vs Overburden

    Tailings vs Interburden vs Overburden. While overburden represents the largest single stream of waste generated by most surface mining operations, it''s far from the only material that needs special handling on the site. It''s often confused with other mixed ground rock materials like interburden, tailings, and gangue.

  • Mineral Processing Part 1

    2020-11-13 · In mining, this is called overburden: the waste or unwanted rock that overlies the ore body. Overburden is typically removed without being processed. The economically useless material within an ore body is called gangue. Gangue …

  • Report to Congress: Wastes from the Extraction and ...

    2021-6-25 · Overburden from Uranium Mining, and Oil Shale" presenting the results of studies carried out pursuant to Sections 8002 (f) and (p) of the Resource ... gangue, the rock in which the ore occurs. Some low-grade ore, waste rock, and tailings are used in dump or heap leaching, a process that the mining industry

  • Reutilization of gangue wastes in underground backfilling ...

    Gangue backfilling mining (GBM) can effectively alleviate the gangue accumulation pollution and the overburden aquifer destruction. To efficiently evaluate the reutilization of gangue wastes by GBM and its advantage in overburden aquifer protection, non-Darcy hydraulic properties and deformation behaviors of granular gangues were studied through laboratorial, theoretical, and …

  • Mining and the environment | SpringerLink

    2013-8-23 · Mining products are vital and indispensable to our modern society and contribute significantly to our wealth. ... the local landscape: open-pit mining operations, for instance, leave large cavities in the scenery. Leachates from overburden and gangue materials that do not contain a substantial amount of sulphidic minerals create seldom a ...

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