Surface magnetic enhancement for coal cleaning

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The fundamental chemistry for selective adsorption of magnetizing reagent on coal-associated minerals to enhance the magnetic susceptibilities of minerals have been established in Phase 1 study. The application of the results on coal cleaning for the Phase 2 study is completed this quarter. Illinois No. 6, Ohio Lower Kittanning, and West Virginia Pocahontas coals have been investigated to determine the most effective way of using the magnetizing method for coal cleaning. The results show that the best separation performance is obtained on finely ground coals. Up to 91% ash reduction (from 22% to 3.3% ash content) and 93% pyritic sulfur ... continued below

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Pages: (19 p)

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Hwang, J.Y. January 1, 1990.

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Description

The fundamental chemistry for selective adsorption of magnetizing reagent on coal-associated minerals to enhance the magnetic susceptibilities of minerals have been established in Phase 1 study. The application of the results on coal cleaning for the Phase 2 study is completed this quarter. Illinois No. 6, Ohio Lower Kittanning, and West Virginia Pocahontas coals have been investigated to determine the most effective way of using the magnetizing method for coal cleaning. The results show that the best separation performance is obtained on finely ground coals. Up to 91% ash reduction (from 22% to 3.3% ash content) and 93% pyritic sulfur reduction at 70% BTU recovery can be obtained with the magnetizing approach when Illinois No. 6 coal is processed at 90% passing 500 mesh. Even at a coarser sizes such as 90% passing 200 mesh, 86% ash reduction and 87% pyritic sulfur reduction with 74% coal TBU recovery can still be obtained. Similar results are obtained for Lower Kittanning and Pocahontas coal.

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Pages: (19 p)

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OSTI; NTIS; GPO Dep.

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  • Other: DE92016142
  • Report No.: DOE/PC/88856-T9
  • Grant Number: AC22-88PC88856
  • DOI: 10.2172/5101195 | External Link
  • Office of Scientific & Technical Information Report Number: 5101195
  • Archival Resource Key: ark:/67531/metadc1053067

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Office of Scientific & Technical Information Technical Reports

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Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • January 1, 1990

Added to The UNT Digital Library

  • Jan. 22, 2018, 7:23 a.m.

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  • Jan. 29, 2018, 1:53 p.m.

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Hwang, J.Y. Surface magnetic enhancement for coal cleaning, report, January 1, 1990; United States. (digital.library.unt.edu/ark:/67531/metadc1053067/: accessed June 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.