Flotation of a variety of non-sulphide and mixed sulphide plus non-sulphide copper ores is disclosed. Stabilization of non-sulphide copper mineral surfaces by sulphidization is initially required and a selective complexing agent able to complex with the copper sulphide surface is then added as conditioner.
The critical role of pulp density on flotation separation of nickel-copper sulfide from fine serpentine. Minerals 8 8 2018 p. 317.
Copper Sulfide Flotation Circuit. Beneficiation of Copper Sulfide by Flotation. Copper due to the present world demand and price is of foremost interest to the mining industry. Many new properties are either in the process of being brought into production or are being given consideration.
The copper flotation tailings were cyanided for 4 hours; 28.9 percent of the total gold and 35.8 percent of the total silver were extracted giving overall recoveries of 91.2 percent of the Gold and 97.0 percent of the silver. Cyanide consumption was 4.7 pounds per ton of original ore.
To reduce the environmental impact caused by highly toxic dichromate in flotation separation of copper-lead sulfide the replacement of dichromate with depressants mixture humic substance and hydrogen peroxide was investigated in this paper.
In nickel-copper sulfide ore processing serpentine is a common gangue mineral encountered in complex sulfide ores and can easily cause entrainment during flotation . Large amounts of serpentine in the flotation concentrate reduces the effectiveness of smelting often resulting in the imposition of smelter penalties on mineral processing
6 Copper-cobalt ore Copper mineral and cobalt-containing pyrite and other cobalt minerals. 7 Arsenic sulfide copper ore The ore has a high content of arsenic which is mainly in the form of arsenopyrite. Flotation process to solve the problem of copper and arsenic separation reduce the arsenic content in the copper concentrate as much as
A sequential flotation process for the recovery of high-grade concentrates of copper lead and cobalt-nickel from sulfide ores is provided. A primary grind ore pulp is conditioned with SO 2 as H 2 SO 3 under intense aeration and the conditioned pulp subjected to sequential flotation with regrinding and conditioning of a copper rougher concentrate obtained in the first flotation step for copper.