| 摘要 |
The present invention relates to a process for treating a cassiterite ore, characterized in that, just before the flotation operation, said ore is subjected to a preliminary flotation operation, using an amphoteric collector of formula: <IMAGE> in which: R is R1 or R1-O- or <IMAGE> R' is H, CH3, polyoxyalkyl or R(CH2)3 or Aq-Z, R'' is H or Aq-Z Ap and Aq are polymethylene chains, Z is selected from the carboxylic, sulfonic or phosphonic groups. |
