Dust Control

Coal & Bulk Solid Dust Suppression Applications


  • Ellis, C., U.S. Patent 943,667, December 21, 1909
    Composition for Laying Road-Dust and Hardening Road-Beds
  • I.G. Farben Industries, British Patent 435,351, September 19, 1935
    Improvements in or Relating to the Precipitation of Dust
  • Van Order, R.B., U.S. Patent 2,621,115, December 9, 1952
    Simultaneous Blueing and Dustproofing of Solid Carboniferous Fuels
  • Rostler, F.S., U.S. Patent 2,646,361, July 21, 1953
    Dust-Laying Emulsion
  • Cole, H.W., U.S. Patent 3,811,660, May 21, 1974
    Equipment for Making Foam for Dust Suppression and Other Purposes
  • Cole, H.W., U.S. Patent 3,847,571, November 12, 1974
    Cyclone Separation with Foam Supply
  • Nippon Mining, Japanese Patent Application 88,061, April 14, 1975
    Dusting Inhibitor Asphalt Emulsions — Applied to Coal and Ores
  • Salyer, I.O., et al., U.S. Patent 3,954,662, May 4, 1976
    Aqueous Foam Compositions to Suppress Coal Dust
  • Cole, H.W., U.S. Patent 4,000,992, January 4, 1977
    Dust Suppression with Small Bubble Foam in Cyclone
  • Netting, D.I., U.S. Patent 4,380,459, April 19, 1983
    Method for Reducing the Amount of Coal Dust in the Environment Surrounding Coal Mining
  • Cole, H.W., U.S. Patent 4,400,220, August 23, 1983
    Suppression of Respirable Dust with Foam
  • Bhattacharyya, B.R. and Roe, W.J., U.S. Patent 4,417,992, November 29, 1983
    Dust Control
  • Salihar, M.W., U.S. Patent 4,551,261, November 5, 1985
    Dust Suppression with Elastomer-Containing Foam
  • Kittle, P.A., U.S. Patent 4,561,905, December 31, 1985
    Method for Suppressing Coal Dust
  • Roe, D.C., U.S. Patent 4,780,143, October 25, 1988
    Methods for Suppressing Cement Clinker Dust Emissions
  • Roe, D.C., U.S. Patent 4,780,233, October 25, 1988
    Dust Suppression Methods and Compositions
  • Roe, D.C., U.S. Patent 4,897,218, January 30, 1990
    Methods for Suppressing Cement Clinker Dust Emissions
  • Roe, D.C., U.S. Patent 4,971,720, November 20, 1990
    Method for Suppressing Process Dust Emissions
  • Roe, D.C., U.S. Patent 5,128,178, July 7, 1992
    Method for Suppressing Dust Emissions from Bulk Solids
  • Roe, D.C., U.S. Patent 5,143,645, September 1, 1992
    Method for Suppressing Process Dust Emissions Using a Salt of a Fatty Acid as a Foaming Agent
  • Roe, D.C., U.S. Patent 5,194,174, March 16, 1993
    Methods for Suppressing Fugitive Dust Emissions
  • Roe, D.C., U.S. Patent 5,256,419, October 26, 1993
    Biological and Dust Control Methods for Bulk/Granular Solids
  • Roe, D.C., U.S. Patent 5,500,220, March 19, 1996
    Biological and Dust Control Methods for Bulk/Granular Solids
  • Roe, D.C., U.S. Patent 5,639,397, June 17, 1997
    Method for Suppressing Dust Emissions
  • Roe, D.C., U.S. Patent 5,648,116, July 15, 1997
    Method for Suppressing Dust Emissions

Other Publications

  • Coal Mining Dust Suppression
    Price, F.H., Trans. Inst. Mining Engrs. (London), 105, 244 (1946)
    Chem. Abstr. 40, 6236 (1946)
  • Ferrous Sulfide and Barium Sulfate Dust Control
    Mukhlenov, I.P., et al., Zh. Prikl. Khim., 28, 922 (1955).
  • Carbon Dust Removal Using Foam Containing Pitch Oil
    Katunin, V.Kh., et al., Gidroliz. i Lesokhim. Prom., 12, No.7:10 (1959)
    Chem. Abstr., 54, 3942 (1960)
  • Carbon Dust Removal
    Zemskov, I.F., et al., Zh. Prikl. Khim., 35, 2467 (1962)
  • Coal Mining Dust Suppression
    Rozenberg, B.A., et al., Zh. Prikl. Khim., 37, 908 (1964)
    Erler, H.R., et al., Freiberger Forschungsh., 85B, 119 (1965)
    Chem. Abstr., 64, 1705 (1966)
  • Dust Removal Using Foam (undefined dust composition)
    Balakirev, A.A., et al., Kolloidn. Ah., 30, 191 (1968)
  • Salyer, I.O., et al.,
    "Foam Suppression of Respirable Coal Dust," Final Report,
    Bureau of Mines, Contract H0100179, Monsanto Research Corp., Dayton, OH 45407, December, 1970
    (This is a large file. DSL download requires at least 10 minutes. This report can also be obtained from NTIS, PB204522.)
  • Cole, H.W., "Microfoam for the Control of Source and Fugitive Dust Emissions"
    A DeTer Company publication, date unknown
  • Guarnaschelli, C., "In-transit Control of Coal Dust from Unit Trains"
    Report EPS 4-PR-77-1, May, 1977
    (This is not a foam application, but it could be.)
  • "Petroleum Based DCA's to Control Fugitive Dust"
    Proceedings of the Annual Meeting of the Fertilizer Industry Roundtable, 1977, Series 27, pages 94-96
  • Glanville, J.O., "Actions of Wetting Agents on Coal Dust"
    Fuel, 58, 819 (1979)
    (This is not a foam application, but it could be.)
  • Rittenhouse, R.C., "Additives: The Answer to Freezing, Dust and Sludge Instability"
    Power Engineering, July, 1986, pages 38-41


Aqueous foam has been used successfully for dust suppression on longwall mining systems and reported in a submission to the U.S. Bureau of Mines, Singh, M.M. and Laurito, A.W., "Field Tests of a Foam Dust Suppression System with Longwall Shearers." As far as I know, the report is not available from conventional sources. In testing done in Utah there were some underground photographs showing foam application, post foam application, dust suppression in the crusher, foam on the outrigger, head drum, and tail drum.


  • Lai, F.S., et al., "Examining the Use of Additives to Control Grain Dust"
    A Report for the Fire and Explosion Research Council, National Grain and Feed Association, Washington, DC, 20005, prepared by U.S.D.A., Grain Marketing Research Laboratory, Manhattan, KS 66502, June 28, 1982.
  • "Soybean Oil: New technology for Controlling Grain Dust"
    American Soybean Association, 12125 Woodcrest Executive Drive, Suite 100, St. Louis, MO 63141-5009. Telephone: 314-576-1770; fax: 314-576-2786.
  • Cole, H.W., U.S. Patent 5,039,348, August 13, 1991
    Edible Small Bubble Foam for Suppressing Dust in Grain Handling and Storage
  • Cole, H.W., U.S. Patent 5,069,723, December 3, 1991
    Method for Controlling Dust in Grain
  • Cole, H.W., U.S. Patent 5,153,014, October 6, 1992
    Method for Suppressing Dust in Grain Handling and Storage Using Edible Small Bubble Foam


The two grain dust suppression items are both condensed phase, non-foam, applications. Using the emulsion technology outlined in U.S. Patent 4,561,905 with soy bean oil, could convert these grain applications into foam systems.

There was a U.S. study of coal train dust suppression several years ago. It was conducted by Simpson Weather Associates, 809 East Jefferson Street, PO Box 5508, Charlottesville, VA 22901. Telephone: 804-979-3571; fax: 804-979-5599. No known email address. The study was not foam related, just condensed phase.

  • Mathai, C.V., "Charged Fog Technology. Part I: Theoretical Background and Instrument Development"
    J. Air Poll. Control Assoc., 33, No. 7, 664-669(1983)