Abstract
This report deals with study of detergency of nonionic surfactant to asphaltic soil with non-polar solvent to which nonionic surfactant is added to determine detergency of surfactant in organic solvents.
Among the agents tested markedly effective were those of alkylamine-ethylene oxide condensates, particularly those in which gram moles of ethylene oxide were 4 moles or less.
In addition, n-alkylmercaptane-4 moles ethylene oxide condensates indicated fairly good results; while higher alcohol and alkylphenol-ethylene oxide condensates did not yield so good effects.
It was also found that anionic surfactants were much inferior to those described above.
