Flotation Tests in Copper Flotation to Depress Arsenopyrite

A copper mine experienced increased arsenic content in the feed ore which reports to the flotation concentrates. Laboratory work at the copper flotation plant used Pionera F-200 as arsenopyrite depressant.

Rougher flotation tests with copper sulfide ore from an European mine showed reduced recovery of arsenopyrite in the rougher concentrate compared to the standard reagent suite.

Check availability and packaging

Key takeaways:

  • The addition of Pionera F-200 reduces arsenic recovery to 5% compared to over 20% without depressant.
  • The mineralogy shows that the arsenic content is related to arsenopyrite.
  • Further tests required to optimize application point and dosage.


Reduced recovery for arsenic in a chalcopyrite flotation.

Contact Me About Pionera