Studies on Removal of Fe₂O₃ Particles by Foam Washing

Part 5: The Effect of Number of Carbons in Sodium Alkyl Sulfonate on Detergency

Abstract

The effects of number of carbons in sodium alkyl sulfonate on foaming power, foam stability and blow ratio were discussed. Relation between these foam properties and removal of Fe₂O₃ particles was discussed from the view point of the detaching action and the transport action. The following results were obtained.
The foaming power, the foam stability and the blow ratio increased with increasing number of carbons at 70°C where all kinds of sodium alkyl sulfonate were soluble in water. C₁₆ sodium alkyl sulfonate have the high detaching action. The transport action was decided by the pressure in foam, dynamic film tension and thickness of film. Detergency was affected by the detaching action more than by the transport action. Removal of C₁₆ was highest by the excellent detaching action.