PROCEDIMENTO PERFEZIONATO DI FLOTTAZIONE.

摘要

Flotation processes are provided, wherein a vinyl sulfonic acid polymer or an allyl sulfonic acid polymer is added to the pulp in a minor amount as a depressant for constituents which preferably should be floated to a minimum degree. Thus the polymers are effective barite-depressants in the flotation of fluoride minerals and rare earth carbonates. Also the polymers are useful as monazite depressants.