Frother analysis: Some plant experiences

A colorimetric technique, originally developed for methyl iso butyl carbinol (MIBC) based on the Komarowsky reaction, has been extended to a wide range of common mineral flotation frothers. The procedure, which is briefly described, is suited to on-site determination as shown in a series of industrial case studies. Some observations described include: distribution of frother down a bank and between pulp and froth; evidence of alcohol contaminants; and mass balancing. The ability to monitor frother will help interpret cell hydrodynamics and should help optimize the type, amount and location of frother addition.