Fhb. Decastro et Ag. Borrego, THE INFLUENCE OF TEMPERATURE DURING FLOTATION OF CELESTITE AND CALCITE WITH SODIUM OLEATE AND QUEBRACHO, International journal of mineral processing, 46(1-2), 1996, pp. 35-52
Citations number
23
Categorie Soggetti
Mineralogy,"Mining & Mineral Processing","Engineering, Chemical
A study has been made on the influence of temperature during flotation
of the celestite and calcite mineral species, using sodium oleate as
the collector and quebracho as the depressant, for a particle size ran
ging between 80/100 A.S.T.M. mesh (177/149 mu m). The experiments were
conducted on pure minerals in a thermostatted Hallimond tube with wor
king temperatures between 293 and 323 K. Results indicate that celesti
te can be depressed during flotation with sodium oleate due to the act
ion of quebracho, although when the temperature in the bath is increas
ed, the depressor action is slightly inhibited, thus increasing recove
ry of the mineral. The results for calcite show similar findings, alth
ough with a less pronounced depressor effect due to quebracho.