Excelsior is developing the Gunnison Copper Project, a low cost in-situ recovery copper project located within the copper porphyry belt of Arizona.
The fluid depleted in the stabilizing agent is then pumped back to the surface and regenerated. In situ mining or recovery has been successfully applied to several commodities, including uranium, sulfur, evaporites, and copper, which have favorable chemical properties and deposit types for in situ recovery. CONTENTS Background, Ore Formation by ...
The optimal conditions to use In-Situ Recovery for copper mining follow a few guidelines. Firstly, the host rock needs to be fractured enough to allow for the solution to permeate through and dissolve the copper resource. The more fractured the rock, the more surface area there will be for the copper to …
This 4 minute video explains the In Situ Recovery (ISR) process in respect to Thor Mining PLC - Alford East Copper Project with short interviews of key pers...
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With conventional mining, large amounts of rock are moved to expose the ore, which then has to be mined so the copper can be extracted. The in-situ process avoids almost all this work; ore is leached right where it is. The in-situ mine consists of a series of injection wells and recovery wells.
copper remain in the historic Kapunda mine. Due to the proximity to town and the heritage of the site, further conventional open-pit or underground mining of the available copper resource is not practical. ISR (In Situ Recovery) mining is a possible solution extractingthisremainingcopper. ISR accelerates the existing naturally leaching
The recovery of copper through passive in-situ methods such as those used at Bingham Canyon during the 1880s eventually led to a more active approach, where water from underground mine sumps was applied to the ores and the resulting copper-bearing solutions collected and
In-situ copper recovery requires unique hydrogeological conditions that happen exist in Florence. Unlike orebodies that are made up of solid rock, the Florence deposit is naturally porous and shattered, allowing the extraction solution to easily flow through it. Whereas fracking requires injection pressures of up to 15,000 PSI (Pounds per ...
Jul 26, 2018· In-situ copper recovery is a 3-phase process: Phase 1 - injection of the active fluid (99.5% water with 0.5% sulfuric acid) with a pH similar to vinegar; Phase 2 - extraction of the pregnant, copper-rich solution; and, Phase 3 – using electrowinning, a process first pioneered in the Globe-Miami area in the late 1960s, to produce ...
Jul 23, 2015· In-situ methods rely solely on the naturally occurring permeability of the ores. Copper as well as a number of other commodities are harvested by solution mining methods. Water-soluble salts such as potash (sylvite), rock salt (halite), thenardite (sodium sulfate) and nahcolite (sodium bicarbonate) are commonly derived from massive sedimentary ...
situ recovery (Cu oxides) from naturally fractured rock, is due to preferential flow of fluids. • Due to uneven permeability of rock in-situ, flow of flui ds will be
Why is in-situ recovery the right approach for the Gunnison Copper Project? In-situ recovery is a proven extraction method that has been effectively used around the world. Because of the economic and environmental benefits of in-situ recovery, this extraction method is …
What is. InSitu Recovery Mining? Metals (Copper, Gold etc) are recovered 'In Situ' by firstly dissolving the commodity in place and then extracting them using a system of injection and extraction bores or wells. Most times ISR accelerates what is already happening naturally within the bedrock and water table.
I. INTRODUCTION In situ recovery (ISR) is a unique hydrometallurgical process where an ore deposit remains in place, a lixivant is recirculated through the ore deposit to dissolve a target metal or mineral, and this solution is returned to the surface for processing. ISR provides a low-environmental-impact and low-operating-cost alternative to conventional open-cut and underground mining.
Dec 01, 2020· Recent decreases in the grades of copper reserves have stimulated interest in alternative mining technologies, such as in-situ recovery (ISR), which may be an attractive mining approach for low-grade ores. In ISR operations, lixiviant contacts subsurface ore …
There is a growing interest in exploring the application of bioleaching for treating copper sulfide ores of decreasing grade and located at larger depth by in situ recovery (ISR) for its potential savings in ore extraction, crushing, grinding and the avoidance of tailings.
Mar 09, 2016· In-situ copper leaching is a proven technology. For those unfamiliar with in-situ leaching, it is the process of circulating solutions through a …
Florence Copper will soon be a large-scale, commercial mining facility operating in Florence, Arizona that will produce over one billion pounds of high-quality copper cathode using revolutionary technology called "in-situ copper recovery" (ISCR). The facility will set a new standard for conservation and environmental protection in copper ...
Apr 28, 2017· The Florence Copper Project is an underground copper recovery site that is in development in Florence. The in-situ copper recovery (ISCR) process occurs between 400 to 1,200 feet underground, where a mixture of 99.5 percent water and 0.5 percent sulfuric acid dissolves copper …
Feb 15, 2020· The in-situ recovery of copper ions by this system is composed of two phases . Migration of Cu(II) ions is the first phase in which the Cu(II) migrated from contaminated water into the cathode chamber (mainly driven by the potential gradient between anode and cathode). In the cathode chamber, a second phase occurs, named electrochemical ...
In situ leaching (ISL), also known as in situ recovery, is a low capital-cost method of extracting uranium, copper or potash from suitable deposits. A suitable deposit is one where the commodity is located in saturated permeable horizons or distinctive geological areas that are bounded above and below by impermeable strata.
Whilst to-date in situ recovery is commonly only used in Australia for mining uranium, and in large scale operations across the globe for mining potash, salt, uranium and copper, global interest is growing in its use for other minerals such as nickel, silver, zinc, and cobalt.
Nov 16, 2017· In situ leach mining involves the recovery of mineral values from undisturbed ore by circulating solvents, such as dilute sulfuric acid for copper oxide recovery, through the ore in its natural state. In contrast, conventional mining requires mine workers to break the ore and transport it to a processing facility.
Gunnison Copper will employ the in-situ extraction method to extract copper via a proven system that is both economically efficient and environmentally friendly. The process will not contaminate local water wells. Learn the facts about in-situ copper recovery. Learn the facts about Today's Green Mining.
In situ leaching (ISL) involves the application of a specific lixiviant to dissolve en masse minerals within the confines of a deposit or in very close proximity to its original geologic setting. Currently there is considerable interest in applying ISL technology to recover copper.
In-situ copper recovery is an environmentally responsible way of extracting copper from the ground. A low-pH solution similar in strength to vinegar slowly dissolves copper in the bedrock. At the same time this solution is being introduced into the copper ore body, it is also being drawn through the ore and extracted.
About Us. Gunnison Copper will employ the in-situ extraction method to extract copper via a proven system that is both economically efficient and environmentally friendly. The process will not contaminate local water wells. Learn the facts about in-situ copper recovery. Learn the …