WASHABILITY EXAMINATIONS OF CORE SAMPLES OF SAN JUAN BASIN COALS, NEW MEXICO AND COLORADO

This report describes the washability characteristics of 18 coal samples taken from 11 drill hole cores from the San Juan Basin area of New Mexico and Colorado. The ash content of these coals could generally be substantially reduced by removing the heavy impurities. The coals were characteristically low in sulfur content; only one sample contained more than 1 percent sulfur after removing the sink 1.50 specific gravity material. The coals ranged in rank from subituminous C to high volatile C; 11 of the samples were subituminous A. Many of these core samples came from areas where very little fieldwork has been done; consequently, an outgrowth of this work has been an increase in known coal reserves of the San Juan Basin area.

  • Supplemental Notes:
    • Notification of this report of investigations appeared in the Bureau of Mines--New Publications, March 1972, Monthly List 683.
  • Corporate Authors:

    Bureau of Mines

    College Park Research Center
    College Park, MD  USA  20742
  • Authors:
    • Deurbrouck, A W
  • Publication Date: 1972

Media Info

  • Features: Figures;
  • Pagination: 26 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00040988
  • Record Type: Publication
  • Source Agency: Bureau of Mines
  • Report/Paper Numbers: RI 7608
  • Files: TRIS
  • Created Date: Apr 27 1973 12:00AM