File:Graphite (1920) (14784681865).jpg

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Identifier: graphite00cana (find matches)
Title: Graphite
Year: 1920 (1920s)
Authors: Canada. Mines Branch (1901-1936) Spence, Hugh S. (Hugh Swaine), 1885-
Subjects: Graphite
Publisher: Ottawa : Thomas Mulvey
Contributing Library: University of Connecticut Libraries
Digitizing Sponsor: LYRASIS Members and Sloan Foundation

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92 ^
Text Appearing After Image:
51) <t d 1 ^__y 93 Ore: Disseminated flake graphite—chief impurities, calcite, mica,quartz, pyrites. Heads, by products, 12-81 per cent carbon. Ground to40 mesh and oiled at the rate of 11 pounds per ton. Oils used: GeneralEngineering Companys No. 136, 90 per cent; No. 56, 10 per cent. Test made by General Engineering Companys laboratory, Ottawa. Treatment. Sample No. Description. Weight,per cent. Assay,per centcarbon. Carbon content= assay X per centof weight. Percentage ofrecoveryor loss,carbon. Sample No. 1floated in Cal- 231 First flotation concen- 24-8 75-2 50-280-46 12-81 1,246-8634-60 97-3 low pneumaticmachine. First flotation tailings. . 2-7 Heads, by products 100-0 1,281-46 100-0 Sample No. 2(flotation con- 45 2 Second flotation concen- 14-210-6 85-2 3-5 50-3 1,209-7637-10 94-41 centrates) re-floated in Cal- Second flotation midd- 2-89 low pneumaticmachine Feed, by products. 24-8 1,246-86 97-30 Sample No. 4(second flota- 6 7 4 + 80 mesh 9-05-2 91-574-3 85-2 823-50386-26

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Flickr tags
InfoField
  • bookid:graphite00cana
  • bookyear:1920
  • bookdecade:1920
  • bookcentury:1900
  • bookauthor:Canada__Mines_Branch__1901_1936_
  • bookauthor:Spence__Hugh_S___Hugh_Swaine___1885_
  • booksubject:Graphite
  • bookpublisher:Ottawa___Thomas_Mulvey
  • bookcontributor:University_of_Connecticut_Libraries
  • booksponsor:LYRASIS_Members_and_Sloan_Foundation
  • bookleafnumber:124
  • bookcollection:uconn_libraries
  • bookcollection:americana
Flickr posted date
InfoField
30 July 2014

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