• US4120935A Dump leaching of copper Google

    US4120935A US05/850,442 US85044277A US4120935A US 4120935 A US4120935 A US 4120935A US 85044277 A US85044277 A US 85044277A US 4120935 A US4120935 A US 4120935A Authority US United States Prior art keywords ore dump copper acid containing Prior art date 1976-06-04 Legal status (The legal status is an assumption and is not a legal conclusion.

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  • Dump leaching Wikipedia

    Dump leaching is an industrial process to extract precious metals and copper from ores.. Dump leaching is similar to heap leaching, however in the case of dump leaching ore is taken directly from the mine and stacked on the leach pad without crushing where, in the case of gold and silver, the dump is irrigated with a dilute cyanide solution that percolates through the ore to dissolve gold and

  • Co-products: Tailings, Gangue, Slag, Clinker, Chat, Red
  • Dump Leaching Metallurgist & Mineral

    Table of ContentsColumn Leach StudiesNature of Iron Species involved in Dump LeachingStudy of the Chemical Composition of DumpsIron Oxidation and Hydrolysis The dump leaching of low-grade copper ores, as an integral part of the open-pit mining operations in the Southwest, has been practiced for the last fifty years and is increasing in importance as one of the major sources of copper. The

  • dump leaching ocmd.co.za

    dump leaching. Potential Problems in Copper Dump Leaching Abstract Background . Potential Problems in Dump Leaching Mark E. Smith with very few major glitches, and some lost economic opportunities some projects suffered from over-conservatism.

  • Dump Leaching Copper Recovery

    Dump leaching requires years to extract part of the copper, and leach dumps often become impermeable owing to precipitation of iron salts which greatly reduces the copper leaching rate. In an effort to improve dump leaching technology, the Bureau of Mines did research as part of a program to assure adequate domestic supplies of minerals.

  • What is DUMP LEACHING? What does DUMP

    10-9-2017· Dump leaching is similar to heap leaching, however in the case of dump leaching ore is taken directly from the mine and stacked on the leach pad without crushing where, in the case of gold and

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  • What is DUMP LEACHING? What does DUMP

    10-9-2017· Dump leaching is similar to heap leaching, however in the case of dump leaching ore is taken directly from the mine and stacked on the leach pad without crushing where, in the case of gold and

  • Auteur: The Audiopedia
  • dump leaching plant dutchcookingexperience

    US4120935A Dump leaching of copper Google Patents The improvement in the method of recovering copper from low grade ore containing oxidized copper ore which comprises establishing a dump of such ore in fragmented form, substantially completely wetting the ore in the dump with strong aqueous sulfuric acid containing at least about 100 g/l H 2 SO 4,allowing the acid wetted ore to age for a

  • Proposed Heap Leach Process YouTube

    15-8-2013· This video demonstrates the proposed process for mineral extraction being considered for GoGold's Parral Tailings Project In Parral, Mexico.

  • Auteur: GoGold Resources
  • US Patent # 4,120,935. Dump leaching of copper

    Dump leaching of copper Abstract. The improvement in the method of recovering copper from low grade ore containing oxidized copper ore which comprises establishing a dump of such ore in fragmented form, substantially completely wetting the ore in the dump with strong aqueous sulfuric acid containing at least about 100 g/l H.sub.2 SO.sub.4, allowing the acid wetted ore to age for a period of at

  • dump leaching 935 woningbedrijfwarnsveld

    Dump leaching Wikipedia. Dump leaching is an industrial process to extract precious metals and copper from ores. Dump leaching is similar to heap leaching, however in the case of dump leaching ore is taken directly from the mine and stacked on the leach pad without crushing where,

  • Dump leaching WikiMili, The Free Encyclopedia

    Dump leaching is similar to heap leaching, however in the case of dump leaching ore is taken directly from the mine and stacked on the leach pad without crushing where, in the case of gold and silver, the dump is irrigated with a dilute cyanide solution that percolates through the ore to dissolve gold and silver. The solution containing gold and silver exits the base of the dump, is collected

  • Heap leaching Wikipedia

    Heap leaching is an industrial mining process used to extract precious metals, copper, uranium, and other compounds from ore using a series of chemical reactions that absorb specific minerals and re-separate them after their division from other earth materials. Similar to in situ mining, heap leach mining differs in that it places ore on a liner, then adds the chemicals via drip systems to the

  • In-situ and dump leaching technology:

    The technology of in-situ and dump leaching, used widely by hydrometallurgists, can be applied with advantage to the exploitation of phosphate rock deposits especially those low in limestone. Nitric or hydrochloric acids of certain concentrations would be used instead of H2SO4 and the solutions obtained treated to remove radium and recover uranium and the lanthanides if desired, then

  • Dump leaching BioMineWiki Skellefteå

    Dump leaching is one of several leaching methods. Dump leaching is carried out on rejected off-grade material that during normal mining has been put aside in big dumps at the mine site. The particle size of the material is generally big and the ore is processed for many years by sprinkling acidified water on the dump

  • Leaching Wikipedia

    Leaching is the loss or extraction of certain materials from a carrier into a liquid (usually, but not always a solvent). and may refer to: . Leaching (agriculture), the loss of water-soluble plant nutrients from the soil; or applying a small amount of excess irrigation to avoid soil salinity Leaching (chemistry), the process of extracting substances from a solid by dissolving them in a liquid

  • CA1093837A Dump leaching Google Patents

    DUMP LEACHING ABSTRACT OF THE DISCLOSURE The improvement in the method of recovering copper from low grade ore containing oxidized copper ore which com-prises establishing a dump of such ore in fragmented form, sub-stantially completely wetting the ore in the dump with strong aqueous sulfuric acid containing at least about 100 g/1 H2SO4, allowing the acid wetted ore to age for a period

  • In-situ and dump leaching technology:

    The technology of in-situ and dump leaching, used widely by hydrometallurgists, can be applied with advantage to the exploitation of phosphate rock deposits especially those low in limestone. Nitric or hydrochloric acids of certain concentrations would be used instead of H2SO4 and the solutions obtained treated to remove radium and recover uranium and the lanthanides if desired, then

  • Dump leaching Project Gutenberg Self

    Dump leaching: |Dump leaching| is an |industrial process| to extract |precious metals| and |copper| from World Heritage Encyclopedia, the aggregation of the largest online encyclopedias available, and the most definitive collection ever assembled.

  • dump leaching flow sheet

    dump leaching flow sheet 99+ customer review Dried Tech Data Sheet Yara processing of ilmenite ore in the, copper and zinc ash ratio,, A flow sheet was, dump leaching flow sheet . Theory and Practice of Copper Sulphide Leaching in Dumps . Get price. v116n6a10 Copper solvent extraction: status, operating .

  • Heap leaching: Could it be an alternative to

    Ultimate recovery of the target mineral can range from 30% of contained run-of-mine dump leaching sulphide copper ores to over 90% for the ores that are easiest to leach, some oxide gold ores.

  • Copper Dump Leaching and Management

    United States Environmental Protection Agency Hazardous Waste Engineering Research Laboratory Cincinnati OH 45268 Research and Development EPA/600/S2-88/005 Mar. 1988 c/EPA Project Summary Copper Dump Leaching and Management Practices That Minimize the Potential for Environmental Releases Robert L. Hearn and Robert Hoye The full report presents a description of

  • Science Break Metal Leaching Mar 2017 CSEG

    Waste Dump Leaching Copper. Dump leaching is an important supplement to open pitmill production of copper providing about 10 percent of the total copper recovered Because dump leaching is slow and incomplete much copper remains in the dumps after leaching has been terminated. More Details Ferric Cure Dump Leaching Process

  • dump leaching Vertaling Engels-Duits

    Online vertaalwoordenboek. DE:dump leaching. Mijnwoordenboek is een onafhankelijk privé-initiatief, gestart in 2004.

  • dump leaching flow sheet arb-group

    gold ore processing dump leach . high quality gold vat leaching processing plant. different heap leach operations with a total production of 198 tonnes of gold per year On the other end of the scale, some very high grade ores up to 15 grams per tonne 0.5 Buildings include process plant, laboratory, maintenance shop and employed: dump leaching and vat leaching vat leaching is

  • operation de dump leaching sankatmochan

    operation de dump leaching . operation de dump leaching. Producing Copper Nature's Way: Bioleaching. In 2001, bioleaching constituted approximately 10% of Chilean copper production and heap and dump leaching, in general, constituted approximately 30% of Chilean production. 2 The first Chilean plant to be put into operation was S.M. Pudahuel