A Silica/Fly Ash-Based technology for Controlling Pyrite Oxidation.

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The overall objective of this project is to develop methodologies by which sodium metasilicate or fly ash may produce an effective coating on pyrite surfaces for inhibiting pyrite oxidation. Milestones for the following periods include: First six-months - (1) Characterize pyrite surface reactions for understanding pyrite coating establishment. (2) Start a preliminary outdoor leaching - column experiment using 10 kg mine pyritic spoil treated with silicates to evaluate potential application of coatings on a large scale. Second six-months - (1) Characterize silicate - iron reactions in solution and on pyrite surface for understanding pyrite silica - coating formation. Third six-months ... continued below

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22 p.; Other: FDE: PDF; PL:

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Creator: Unknown. September 21, 1997.

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Description

The overall objective of this project is to develop methodologies by which sodium metasilicate or fly ash may produce an effective coating on pyrite surfaces for inhibiting pyrite oxidation. Milestones for the following periods include: First six-months - (1) Characterize pyrite surface reactions for understanding pyrite coating establishment. (2) Start a preliminary outdoor leaching - column experiment using 10 kg mine pyritic spoil treated with silicates to evaluate potential application of coatings on a large scale. Second six-months - (1) Characterize silicate - iron reactions in solution and on pyrite surface for understanding pyrite silica - coating formation. Third six-months - (1) Evaluate pyrite surface deposition of silicate having Na - silicate or fly ash as source. Fourth six- months - (1) Evaluate silicate coating durability in large outdoor columns.

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22 p.; Other: FDE: PDF; PL:

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OSTI as DE98051711

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  • Other Information: PBD: 21 Sep 1997

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  • Other: DE98051711
  • Report No.: DOE/PC/95226--T3
  • Grant Number: FG22-95PC95226
  • DOI: 10.2172/611787 | External Link
  • Office of Scientific & Technical Information Report Number: 611787
  • Archival Resource Key: ark:/67531/metadc691633

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • September 21, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • Nov. 10, 2015, 9:30 p.m.

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A Silica/Fly Ash-Based technology for Controlling Pyrite Oxidation., report, September 21, 1997; United States. (digital.library.unt.edu/ark:/67531/metadc691633/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.