Cyandiation of the Fine Fraction - 325

Conditions

• Weight of the sample    = 0.300 Kg.
• Solid-liquid relation      = 1:3
• Percentage of cyanide   = 0.13%
• pH                                 = 10.5
• Time of contact             = 24, 48 and 72 hours.

Concentration of Thick Fraction + 325

Fraction Flotation

- Grinding

• Weight of the sample      1.00 Kg.
• % of solids                       50%
• Time                                5 minutes
• pH                                    7.4

- Rougher Flotation

         Reactives                                         K/TM

• Aeropromotor 404                        0.030
• Aerofloat 242                                0.020
• Aeroxanate 350                             0.050
• Pine oil                                          0.020
• Conditioning                                       8 minutes
• Foaming                                              5 minutes

- Scavenger Flotation

         Reactives                                         K/TM

• Aeropromotor 404                        0.020
• Aerofloat 242                                0.010
• Aeroxanate 350                             0.020
• Pine oil                                          0.010
• Conditioning                                       5 minutes
• Foaming                                              4 minutes
• - Cleaning
• Without reactives
• Conditioning                                       5 minutes
• Foaming                                              4 minutes