Common Additives 、Activators and Collectors for flotation o
2020-06-29 15:09Introduction：Abstract : The flotation recovery rate of gold has been improved from 62.19% to 82.83% and concentrate grade of gold has been improved from 23.63 g/t to 33.95 g/t , with Na 2 CO 3 as pulp pH regulator and slurry dispersant, with T 9 as new
Abstract: The flotation recovery rate of gold has been improved from 62.19% to 82.83% and concentrate grade of gold has been improved from 23.63 g/t to 33.95 g/t , with Na2CO3 as pulp pH regulator and slurry dispersant, with T9 as new regulator and L1 as new activator for gold carrier minerals and with L4 as collector for oxidized gold ore. The mine achieves better economic benefit.Sodium carbonate(Na2CO3)
In the process of gold flotation, lime is commonly used as the pH adjuster of pulp, because the carrier mineral of gold is pyrite, and lime is the depressant of pyrite. So in order to avoid the effect of pH adjuster on pyrite, sodium carbonate is used as pH adjuster and slurry dispersant, which is mainly added in ball mill or classifier. The flotation effect of pyrite and arsenopyrite can be improved significantly, and the recovery rate of gold can be improved, especially the gold ore with arsenic and carbon.
Activators copper sulfate and L1
Cupric sulfate is a common activator of nonferrous metal ore, which has limited activation effect on arsenic-containing carbon-bearing oxidized ore of gold. The activation effect of copper sulfate on arsenic-bearing carbon-bearing gold deposit can be improved by adding the chelating agent L1 properly. The recovery rate and concentrate grade of gold can be improved by adding Copper sulfate and L1 according to a certain ratio. and we can Produce qualified gold powder.
BF-8 xanthate
Ding Ji xanthate, pentyl potassium xanthate or BF-8 xanthate are used alone in the flotation process of gold oxide ores containing arsenic and carbon. The flotation recovery is not ideal, but the mixed use should be used (Ding Ji xanthate). The addition of amyl potassium xanthate and BF-8 xanthate in a certain proportion has a synergistic effect among different xanthins, which can significantly improve the floatability of useful minerals and the recovery of gold.
Liquid collector L4
Further adding a small amount of liquid collector L4 to the above reagent system can further improve the flotation recovery and concentrate grade of arsenic-containing and carbon-bearing gold deposits.
