Compositions – Preservative agents – Anti-corrosion
Patent
1990-07-26
1992-06-30
Dawson, Robert A.
Compositions
Preservative agents
Anti-corrosion
210925, 252312, 252351, 252354, 252DIG6, B01F 1742
Patent
active
051260735
ABSTRACT:
The invention concerns a method for treatment of solid and fluid materials contaminated by at least predominantly lipophilic harmful substances, in particular hydrocarbons and the like, especially for oil-infested grounds and waters, as well as suitable systems and emulsifier substances for carrying out the method. The contaminated materials, for microdispersed emulsifying of the harmful substances, is intimately mixed with at least one emulsifying substance as well as possibly with water. Subsequently, the emulsion is separated from the material while adding water, and preferentially biologically decomposed. The treatment is conducted with an emulsifying composition containing biologically decomposable organic compounds including a member with emulsification (causing lipophilic and hydrophilic functional groups) a fatty alcohol polyglycol ether-type tenside member and a member having one or more functional groups recognizable by bacterial cell membranes as being absorbable.
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Dawson Robert A.
Drodge Joseph
Ethyl Petroleum Additives Inc.
Sieberth John F.
Thompson Doris M.
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