Surfactant-aided removal of organics

Details Surfactant-aided removal of organics Surfactant-aided removal of organics

1993-08-31

2000-02-29

Straub, Gary P.

Cleaning and liquid contact with solids

Processes

Oils, grease, tar, or wax removal, by dissolving

405263, 588205, 210908, 210925, 134 42, B08B 700, C09K 1700, A62D 300

Patent

active

060304677

ABSTRACT:
The present invention relates to a surfactant solution, and to using an aqueous solution of the surfactants, optionally with an antifoaming additive, for removing or washing MFAC contaminants from equipment, sludge, scale, and soil, among others. Examples of MFAC and related contaminants that can be removed by practicing the invention include at least a member of the tetraalkylleads, including but not limited too, tetramethyllead, trimethylethyllead, dimethyldiethyllead, methyltriethyllead, and tetraethyllead. While any suitable surfactant can be used for practicing the invention, an aqueous solution containing at least one member from the group of nonionic alcohol ethoxylates, including but not limited to the polyethoxylated aliphatic alcohols, is particularly effective at removing MFAC contaminants.

REFERENCES:
patent: 2748080 (1956-05-01), Newcombe et al.
patent: 2882973 (1959-04-01), Doscher et al.
patent: 3375872 (1968-04-01), McLaughlin et al.
patent: 3770423 (1973-11-01), Lores et al.
patent: 3877887 (1975-04-01), Moore et al.
patent: 4422940 (1983-12-01), Cousino et al.
patent: 4732213 (1988-03-01), Bennett et al.
patent: 4783263 (1988-11-01), Trost et al.
patent: 5055196 (1991-10-01), Darian et al.
patent: 5120428 (1992-06-01), Ikura et al.
patent: 5122194 (1992-06-01), Miller et al.
patent: 5181796 (1993-01-01), DeYoung
patent: 5232596 (1993-08-01), Castaldi
patent: 5252138 (1993-10-01), Guymon
patent: 5266494 (1993-11-01), Lahoda et al.
patent: 5302287 (1994-04-01), Losack
patent: 5302320 (1994-04-01), Hosmer et al.
Paul Becher, Emulsions: Theory and Practice, Second Edition, Reinhold Publishing Corp. 209-266, 1965.
William C. Griffin, Calculation of HLB Values of Non-Ionic Surfactants, Atlas Powder Company, 249-256.
Handbook on In Situ Treatment of Hazardous Waste-Contaminated Soils, EPA Jan. 1990.
Paul Becher, Emulsions: Theory and Practice, Second Edition, Robert E. Krieger Publishing Company , 1977.
James H. Nash, Field Studies of In Situ Soil Washing, EPA, Feb. 1988.
Milton J. Rosen, Surfactants and Interfacial Phenomena, A Wiley-Interscience Publication, 1978.
Milton J. Rosen, Surfactants and Interfacial Phenomena, A Wiley-Interscience Pub., Second Edition, 1989.

Affiliated with

Also associated with

Rating

Surfactant-aided removal of organics does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Surfactant-aided removal of organics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surfactant-aided removal of organics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-679186