The flowsheet in this study was designed to treat 500 tons per day of a complex base metal ore containing gold and silver values. The presence of free gold offers opportunity to recover these values in the grinding circuit so that the gold could be amalgamated, and marketed directly to the mint. The ore as … Read more
Copper Agitated Leaching and cementation process of copper problem: 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 … Read more
The Problem with separating Copper from Zinc by flotation The treatment of heavy sulphide ores of copper containing zinc and pyrite is often extremely difficult particularly if soluble copper and sulphates are present. This is usually the case in ore deposits near the surface or in tropical countries where the annual rainfall is quite high. The … Read more
The Problem with copper-pyrite ores This flowsheet, is designed for the treatment of a copper-iron sulfide ore containing appreciable values in gold. The major portion of the gold is associated with the copper but the pyrite contains appreciable gold values also. The demand for pyrite for sulphuric acid also gives added incentive for the recovery … Read more
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. Copper minerals usually occur in low grade deposits and require … Read more
To understand froth flotation, first read that article and come back to read about sequential flotation of Copper, Lead and Zinc. Given a baseline amount of frother and collector, these curves are the approximate/relative rate of flotation recovery of Copper (Chalcopyrite/Bornite/Chalcocite/Covellite/Tennantite/Enargite/Tetrahedrite /Freibergite ), Lead (Galena) and Zinc (Sphalerite) as well as iron (pyrite/arsenopyrite) minerals VS … Read more
A copper flotation concentrate is over limit on Fluorine (F) content and Contamination. When assaying and plotting Copper (Cu) from times concentrates and the related fluorine and Magnesium Oxide (MgO) assays in various ways as shown below; one can see the obvious relationships. In the case, reducing Fluorine content and contamination of the copper conc … Read more
To improve the selectivity between copper and lead, a sequential copper-lead-zinc rougher circuit was tested. Each of the rougher circuits had a dedicated regrind and cleaner circuit. The advantages of the sequential circuits are that the levels of selectivity can be increased, particularly for copper and lead. With this process, copper was recovered first with MBS depression of lead, … Read more
A two-week strike at the Angamos port is severely affecting Chile’s copper exports and the main companies operating in the country. Almost $130 million worth of Codelco’s December income has been sliced due to the tie-up, now joined by six other Chilean terminals. Workers at the seaports of Iquique, Antofagasta and San Antonio, for instance, stopped … Read more
The company Itronics Inc. has recently announced it’s updating its technology developments and plans “with a focus on potential applications for silver-gold mines that have a silver to gold ratio exceeding 4 to 1 in the ore”, it’s possible to read on the firm’s website. According to the Nevada-based business, its technology may also “prove to … Read more