copper

Froth Flotation Process

flotation separators

The Froth Flotation Process is about taking advantage of the natural hydrophobicity of liberated (well ground) minerals/metals and making/playing on making them hydrophobic (water-repel) individually to carefully separate them from one another and the slurry they are in. For this purpose we use chemicals/reagents: Frothers (MIBC) is what allows the formation of air bubbles. Think … Read more

Acid Leaching – Copper Ore Treatment Method

The treatment of copper ores, both oxides and sulfides by means of flotation, hydrometallurgy or other processes has been well established for many years. Flotation has been applied generally to the treatment of sulfide ores, both in small and large scale operations. Hydrometallurgical methods alone or in combination with flotation have mainly been applied to … Read more

How is Copper Ore Processed

In 1948 Trefoil was privileged to publish an Engineering Notebook Bulletin on Development and Pilot Plant Operations at the Nchanga Consolidated Copper Mines Ltd., Chingola, Northern Rhodesia. This article was authored by Mr. H. L. Talbot, then Consulting Metallurgist to the Anglo-American Group of Companies in Northern Rhodesia. It is now our privilege to bring … Read more

Flotation Uranium bearing Copper ore

Uraninite and masuyite are the major uranium minerals, essentially fine grained, in the ores studied. Over 40% of the uranium is distributed in the -8µm fractions compared with copper, which is concentrated mainly in the +8-20µm range. Uranium is concentrated mainly in the copper ore zones, with only marginal levels in the gold-only ores. Poor liberation … Read more

Segregation Process of Mixed Sulphide Copper Ore

Sulphide copper ores are normally concentrated by flotation while the oxide ores undergo hydrometallurgical treatments. The mixed sulphide-oxide copper ores may be processed by combined methods such as flotation followed by leaching and precipitation of the oxidized portion, or vice-versa. Also a Leach-Precipitation-Float Process (LPF Process) has been successfully applied. However, when oxide or mixed … Read more

LPF Process Metallurgical Testing

EXECUTIVE SUMMARY A Metallurgical Laboratory had completed preliminary economic studies on various processing options applicable to the Minerals Project in South America, containing oxide, transition and sulfide ore reserves. These included heap leaching with SX-EW; use of Roast-Leach-EW of sulfide concentrates to produce CuSO4 crystals; and potential application of the Leach-Precipitation-Flotation (LPF) option to treat … Read more

Copper Flotation

Although basic porphyry copper flotation and metallurgy has remained virtually the same for many years, the processing equipment as well as design of the mills has continually been improved to increase production while reducing operating and maintenance costs. Also, considerable attention is paid to automatic sensing devices and automatic controls in order to assure maximum … Read more

Copper LPF Leach Precipitation and Flotation Process

The LPF process is uses for treatment of copper ores in which part or all of the copper occurs in oxidized form presents a problem for recovery. Sulphidization of the oxidized copper minerals using sodium sulphide or sodium sulphydrate is sometimes effective to render the minerals floatable, but generally sulphidization techniques produce low recoveries. Many … Read more

Molybdenum Ore Processing by Flotation

This molybdenum flotation circuit, based on 250-500 tons per 24 hours is designed for low-grade molybdenum ore having high-grade streaks and with pyrite-quartz gangue. It is also basically sound for many other friable sulphide ores, such as antimony, silver and even some lead ores. The basic ideas stressed in this moly flotation flowsheet are the importance … Read more