Abstract
The promising nature of flotation with a combination of collecting agents is well known. The synergetic effect of combinations of collectors develops as hydrophobization of a mineral surface during adsorption and as reduction in surface tension at gas-liquid interface. The earlier proved mechanism of physisorption of an agent is based on the connection of its surface characteristics (surface pressure, spreading rate) and their collectability. It is assumed that the ratio of agents in their combination for flotation can be selected from the maximum synergistic effect achieved. This study focuses on adsorption at the gas-liquid interface in aqueous solutions of binary mixtures of sodium lauroyl sarcosinate and hexadecyltrimethylammonium bromide. The interaction parameters and the ratio of the components in the solution so that the maximum synergistic effect is achieved are determined.
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