Direct flotation of potash from insoluble-slime-bearing Sylvinite and Carnallite ores.

Details

• Personal Author:
  Foot DG Jr. ; Huiatt, J. L.
• Description:
  The Bureau of Mines devised a direct flotation method for treating low-grade carnallite (kcl-mgcl2.6H2o) and sylvinite (a mixture of kcl and nacl) ores characterized by a high content of water- insoluble impurities. The procedure consists of (1) flocculation- depression of the insoluble slimes, (2) decomposition leach (carnallite only), (3) potash rougher, cleaner, and recleaner flotation, and (4) final product leaching. The technique eliminates the necessity of removing the water-insoluble slimes by mechanical or flotation desliming. Laboratory results demonstrated that the direct flotation procedure, when compared with conventional techniques, yielded equivalent or improved flotation results with equal or less reagent consumptions. The direct flotation method recovered 81.6 pct of the solid-phase kcl from carnallite ore and 79.7 pct of the kcl from sylvinite ore in final products containing 60.5 pct and 60.9 pct k20. A flowsheet incorporating the described flotation procedure is presented. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• ISBN:
  0895204150
• Document Type:
  Text
• Genre:
  Journal Article ; Proceedings
• Place as Subject:
  Illinois ; OSHA Region 5 ; OSHA Region 8 ; Utah
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  SLRC - Salt Lake City Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-8
• Volume:
  272
• NIOSHTIC Number:
  nn:10006959
• Citation:
  AIME Transactions 1981 Feb; 272:1-8
• Federal Fiscal Year:
  1981
• Peer Reviewed:
  False
• Source Full Name:
  AIME Transactions
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7dc847c09aedf140bc731323e8446b4703641ae07d6ad9e7b7238120dab30b8f7dcaa9b938d34d035f87873a0fe7fec262d5d13dcaf290925445e82b6de3b57d
• Download URL:
  https://stacks.cdc.gov/view/cdc/240320/cdc_240320_DS1.pdf
• File Type:
  [PDF - 168.02 KB ]