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Hi We are planning a VAT leaching for HMS rejects of copper oxide ore. We are stuck at design and would value inputs. We are planning for a 5000 tons holding capacity for the VAT and feed grade is 1% copper. Size of feed passing 20 mm. Would there be any channeling effect in the VAT as we are p
Nov 18, 2012· Process for recovery of copper – Inspiration Consolidated Copper …. Jun 28, 1977 · vat leaching sulfidic copper ore with an aqueous acidic ferric … The copper ore is crushed and added to conventional leaching vats wherein it is … »More detailed
The vat is continuously fed, and moves via intermittent fluidization to the discharge point where it is dewatered, detoxified, and ready for stacking. With the ability to accommodate all ores, and any leaching chemistry, INNOVAT's Continuous Vat Leaching system is applicable to all leach projects whether gold, silver, copper, rare earth ...
The first process, vat leaching of high-grade copper oxide ore followed by EW of copper from the leach solution, produced low quality copper cathode at relatively high cost. In 1968 the tonnage of high-grade oxide ores was decreasing and vat leaching was on the decline. The second process, heap and dump leaching of low-
This invention relates to a process whereby recovery of copper from copper ores using leaching and solvent extraction techniques can be increased. The process generally comprises leaching to obtain a pregnant leach liquor, washing ore residues with an extra quantity of water to obtain extra dissolved copper values, recovering said copper values, combining the extra wash water with the pregnant ...
X- process contributed to the copper enrichment in the ray diffraction patterns on powdered samples were sample. carried out before and after the leaching process. A Rigaku DII-Max automated diffractometer was Biofilm generation and acid production used between 5-70º 2 θ with Cu-Kα radiation at Figures 1 and 2 show the evolution of proton ...
In vat leach operations, copper bearing ores from a mine are crushed and placed in a large vat. The vat is filled with sulfuric acid which dissolves the copper oxides contained in the ore. The vat is drained and the "pregnant solution" subject to a copper recovery operation (solvent extraction and electrowinning).
d) Vat Leaching. Answer: b. Clarification: Dump leaching involves uncrushed waste rock which is piled up. It is an industrial process to extract rare metal ores or copper. This process is similar to heap leaching but in case of dump leaching the ores are taken directly from the mines.
GRD Minproc Limited has completed the leaching process trade-off study and has recommended vat leaching as the preferred leaching process for incorporation into the feasibility study of the Mina Justa project. Other information on the leaching processes is contained in press releases dated February 5, 2007; March 7, 2007 and April 18, 2007.
The first process, vat leaching of high-grade copper oxide ore followed by EW of copper from the leach solution, produced low quality copper cathode at relatively high cost. In 1968 the tonnage of high-grade oxide ores was decreasing and vat leaching was on the decline. Get Price
Dump Leach (DPL) (Run Of Mine ore) 3. Heap Leach (HPL) (Crushed and or Agglomerated ore) 4. Vat Leach (VTL) (Ore or Concentrates) 5. Agglomerated Fines Heap Leach (AFHL) (Ore or Concentrates) The types of percolation leaching commercialised are tabulated below with a …
Tank vs. vat leaching Factors. Tank leaching is usually differentiated from vat leaching on the following factors: In tank leaching the material is ground sufficiently fine to form a slurry or pulp, which can flow under gravity or when pumped. In vat leaching typically a coarser material is placed in the vat for leaching, this reduces the cost of size reduction;
US3586498A Process for the selective separation of . a process for the separation of ferric sulfate from copper in a sulfuric acid leach solution, followed by precipitation of the copper from the leach solution by means of the addition of metallic iron. the process is characterized by the selective separation of ferric sulfate from copper in the sulfuric acid leach solution, prior to ...
Copper mining and concentrates production is a complex process requiring a symphony of operations using specialized equipment and techniques such as explosives and earth moving equipment to extract and transport the raw ore to the processing plant for crushing and grinding operations before the ore undergoes a refining process to create concentrates such as leaching and electrowinning or froth ...
The five basic leaching reactor configurations are in-situ, heap, vat, tank and autoclave. In-situ leaching. In-situ leaching is also called "solution mining." This process initially involves drilling of holes into the ore deposit. Explosives or hydraulic fracturing are used to create open pathways within the deposit for solution to penetrate ...
Jul 29, 2013· The Vat Leaching Process Vat leaching can be described as leaching in a bathtub inside a building. Treatment of ore is site-specific as determined by metallurgical tests. Bench scale metallurgical testing of ores for their amenability to vat leaching is similar to that for heap leaching. First, bottle-roll tests of finely ground material are run…
US3777003A US00068690A US3777003DA US3777003A US 3777003 A US3777003 A US 3777003A US 00068690 A US00068690 A US 00068690A US 3777003D A US3777003D A US 3777003DA US 3777003 A US3777003 A US 3777003A Authority US United States Prior art keywords ore leaching vessel mineral solution Prior art date 1970-09-01 Legal status (The legal status is an assumption and …
nickel laterites, copper ore leaching, uranium ore processing, copper SX-EW, heap leaching and solvent extraction. ALTA conferences. are a world-class annual metallurgical conference and a leading platform for innovation. It comprises five international conferences, panel …
Jan 01, 2019· Heap leaching accounts for around 20% of the global production of copper. In heap leaching coarsely crushed ore particles are contacted with an aqueous lixiviant percolating through large packed beds (heaps) of the ore particles, with the loaded solution collected at the foot of the heap for metal recovery, solution make-up and recycle.
Spent Ore from Heap, Dump, and Vat Leaching Spent ore consists of the material remaining in either dump or heap leach piles when leaching ceases. Spent ore from heap, dump, and vat leaching may contain residual lixiviant and other constituents of the ore. Some operations may refer to wastes from vat leaching operations as tailings. 1.5.1.2 ...
Other articles where Vat leaching is discussed: gold processing: Cyanidation: …ore), cyanidation is accomplished by vat leaching, which involves holding a slurry of ore and solvent for several hours in large tanks equipped with agitators. For extracting gold from low-grade ores, heap leaching is practiced. The huge heaps described above are sprayed with a dilute solution of sodium cyanide ...
2.1 Leaching. Most copper leaching is done by piling broken ore (∼0.5% Cu) into flat-surface, 3–10m high, 10 4 –10 5 m 2 heaps of ore and then sprinkling dilute sulfuric acid lixiviant on to the heap surface. The lixiviant trickles down through the heap and leaches copper from its minerals to produce a pregnant leach solution containing 1–5kg Cum −3.
All primary sulfide ores of copper sulfides, and most concentrates of secondary copper sulfides (being chalcocite), are subjected to smelting.Some vat leach or pressure leach processes exist to solubilise chalcocite concentrates and produce copper cathode from the resulting leachate solution, but this is a minor part of the market.. Carbonate concentrates are a relatively minor product ...
vat leaching of copper ore. ... PROCESS FOR LEACHING METAL SULFIDES WITH. nbsp 0183 32 The results of leaching tests on the Ore A Ore B and Ore C are shown in FIGS 6 7 and 8 respectively The presence of Tu in the lixiviant clearly has a positive effect on the leaching of copper …
Leaching Process Copper Ore - Kaseo Heavy Machinery. copper ore vat leach cementation. pper leaching process seekonzertech Agitated Copper Leaching Cementation Process vat leaching of highgrade copper oxide ore followed by EW of copper from the leach solution produced low quality copper cathode at relatively high cost In 1968 the tonnage of highgrade oxide ores was decreasing and vat leaching …
Jul 13, 2016· Vat Leaching Copper Ore Vat leaching is a simple and efficient mode of effecting adequate contact between the solute and aqueous solvent. It utilizes the countercurrent principle, with the ore to be leached remaining stationary, as differentiated from most counter-current methods, where all materials are moving.
Primary Copp er Mineral s = A-E – ( (C-B) + D) Native Copper = E. The Applicatio n of Diagnostic Leaching to Copper O res. Uti li zing the diagnostic fl owsheet p resented in Table 1. several ...
What is claimed is: 1. A process for the leaching and recovery of copper values from copper-containing material which comprises: vat leaching sulfidic copper ore with an aqueous acidic ferric sulfate leach solution containing at least 10 gpl ferric ion to form a copper-pregnant leach solution containing substantially less than 10 gpl ferric ion and a corresponding increase in ferrous ion ...