Report of Investigations 8609: Beneficiation of High-Magnesium Phosphate from Southern Florida

Details

• Personal Author:
  Davis, Broderick E. ; Hansen, John P. ; Llewellyn, T. O. ; Sullivan, Gerald V.
• Corporate Authors:
  United States. Bureau of Mines
• Description:
  The Bureau of Mines, as part of its goal to develop technology that can conserve domestic mineral resources investigated beneficiation methods for recovering phosphate minerals from two southern Florida deposits with high magnesium content. Chemical analyses of sized fractions indicated that no coarse pebble concentrate could be produced from either deposit. Conventional fatty acid-fuel oil batch flotation tests on two phosphate samples, analyzing 6.8 And 8.5 pct p2o5, yielded concentrates containing 28.97 to 29.80 pct p2o5 at recoveries ranging from 72.4 to 76.9 pct of the flotation feed. The mgo content ranged from 1.20 to 1.36 pct. Bubbling so2 gas through an aqueous concentrate slurry, further reduced the mgo content of these phosphate concentrates to 0.5 and 0.8 pct, but with a concomitant loss in the phosphate recovery. Settling characteristics of slimes from both phosphate samples showed a slow settling rate, which is a typical characteristic of other slimes in the region. [Description provided by NIOSH]
• Subjects:
  Magnesium Compounds Mining Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Report of Investigations
• ISSN:
  1066-5552 (print)
• Publisher:
  United States. Bureau of Mines
• Document Type:
  Text
• Genre:
  Case Report
• Place as Subject:
  Florida ; OSHA Region 4
• Rights:
  Public Domain
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  TURC - Tuscaloosa Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  26 pdf pages
• NIOSHTIC Number:
  nn:10006326
• Federal Fiscal Year:
  1982
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:cff5ab8b9152414732e14f2deca5828c0d288b3304c7c765256e59da53aa889e660a31b1eb30c58a5de82de684cce44041ab828bc829ea268e5236f1992d3a61
• Download URL:
  https://stacks.cdc.gov/view/cdc/201781/cdc_201781_DS1.pdf
• File Type:
  [PDF - 1.04 MB ]