Froth Flotation of Insoluble Slimes from Sylvinite Ores

Details

• Personal Author:
  Huiatt, Jerry L. ; Seidel, Don C. ; Thompson, Philip
• Description:
  Sylvinite ores are treated for removing insoluble slimes by froth flotation, which includes flocculating the slimes with a nonionic or polyacrylamide flocculant and using a nonionic or anionic flotation collector, including a mixture of fuel oil or fatty acid and a defoamer of the glycol ester or polyglycol ester type. Thus, 1,000 g of sylvinite containing k2o 12.6, Na 26.5, and water-insoluble compounds 5 pct, was pulped to 27 pct solids at ph 7.6, Scrubbed, and mixed with 0.2 Lb/ton of ore betz 1160 cationic flocculant. After stirring, 0.1 Lb/ton of ore caprylic acid was added, stirred, mixed with 1 drop of frother, and froth floated for 4 min. The process was repeated 4 times with hcl addition to bring the ph down to 2. The slimes contained 72.3 pct water-insoluble materials. Chem. Abstr. 92:218,669W (see also chem. Abstr. 91:143,995T) sylvinite ores are treated for the removal of insoluble slimes by froth flotation, which includes flocculating the slimes with nonionic or polyacrylamide flocculant, then using a nonionic or anionic flotation collector including a mixture of fuel oil or a fatty acid and a defoamer of the glycol ester or polyglycol ester type. Thus sylvinite containing 5 pct insolubles was pulped to 27 pct solids and treated with 0.2 Lb betz 1160/ton of ore as cationic flocculant. After 15 s, 0.1 Lb caprylic acid/ton of ore was added. After 5 min flotation, with hcl additions to give ph 2, the water-insolubles removal was 77.3 pct. [Description provided by NIOSH]
• Subjects:
  Mining Occupational Health Safety
• Series:
  Mining Publications
• Document Type:
  Text
• Genre:
  Other
• 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:
  10 pdf pages
• NIOSHTIC Number:
  nn:10007164
• Citation:
  U S Pat 4 192 737 1980 Mar; :
• Federal Fiscal Year:
  1980
• Peer Reviewed:
  False
• Source Full Name:
  U.S. Pat. 4,192,737, Mar. 11, 1980; Chem. Abstr. 91:143,995T
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:f5165ad95e1c5056a396fd28424cebcbfaf112fb233600b5e7f28047bf059d4bc027af25b4d7c2c5b6fcebb19727267498652a45b76344a7c5de5bc167786e3a
• Download URL:
  https://stacks.cdc.gov/view/cdc/236333/cdc_236333_DS1.pdf
• File Type:
  [PDF - 704.68 KB ]