us8070851b2 chloride heap leaching

USB2 Chloride heap leaching Google Patents

A heap leaching method to recover copper from a primary copper sulphide mineral wherein the mineral is leached in an acidic chloride/sulphate solution in the presence of oxygen with the surface potential of the mineral below 600 mV (vs SHE) to cause dissolution of the copper sulphide USB2 Chloride heap leaching Google PatentsThe invention claimed is: 1 A hydrometallurgical method of recovering copper from a material, in a heap, that contains a copper sulphide mineral which contains at least chalcopyrite comprising leaching the material in an acidic chloride solution or a mixed chloride/sulphate solution in the presence of dissolved oxygen and maintaining the mineral's surface potential within a range ofChloride heap leaching BHP Billiton SA Limitedheap leaching chloride chloride heap leaching heap Prior art date Application number APA Other languages English (en) Other versions AP2268A (en Inventor Elmar L Muller Petrus Basson Michael J Nicol Original Assignee Bhp Billiton Sa Ltd Priority date (The priority date is an assumption and is not a legal conclusionAPA0 Chloride heap leaching Google Patents

Leaching Chalcocite in Chloride Media—A Review

Oct 28, 2021· Figure 1 shows the effect of chloride ions in a heap leaching process at an industrial level (Chilean mine company) For an acid medium without the addition of chloride, extractions of 35% Cu are obtained, while when working at 20 and 50 g/L of chloride, extractions of 50% and 55% Cu are obtained, respectively (for 90 days) [ 56 ]oxidation, ferric sulphate leaching and copper chloride leaching The effect of mineralogy on the choice of processing technology is discussed as well as some of the unit processes used Additionally, possible benefits that a hydrometallurgical process may offer over an available for use in a copper heap leaching unit process In this wayLeaching of Copper Sulphides SAIMMAug 19, 2018· 高达10%返现· Among such alternative reagents is the combination of chloride and hypochlorite ions due to their oxidation of metallic gold and its complexation Therefore, the current work aims at investigating gold leaching from an oxidized material by means of a solution comprising calcium hypochlorite and sodium chloriteGold Leaching by Sodium Chloride and Calcium Hypochlorite

Petrus BASSON | Head: Process Design Group | Master of

A heap leaching method to recover copper from a primary copper sulphide mineral wherein the mineral is leached in an acidic chloride / sulphate solution in the presence ofPROFESSIONAL PAPERS Goldfield Heap Leach Project: 100 Year Heap Leach Effluent Closure Configuration Richard DeLong, Carl Defilippi & Guillermo Larios Proceeding of Heap Leach Solutions Reno, Nevada USA September 2015 Conveying and Stacking Systems Design for Heap Leach ApplicationsPROFESSIONAL PAPERS | kcareno