ION FLOTATION PROCESS, PROCESS FOR GOLD EXTRACTION BY ION FLOTATION, USE OF A FLOTATION REAGENT, PROCESS FOR PREPARING A FLOATING COMPOUND, AND ANIONIC SURFACE COMPOUNDS

摘要

Compounds of general formula (I), wherein Y+ is a metal cation or a hydrogen ion, and either R1 is an isothiouronium or amine group, m is 10 to 18, n is 0, and R2 is H, or R1 is H, m is 10 to 18, n is 1 to 4, and R2 is an isothiouronium or amine group. Methods for preparing the compounds of formula (I). Methods for ion flotation, especially of gold, using compounds of formula (I) as ion flotation reagents.