Method of leaching copper ore JX Nippon Mining Metals
31/03/2015· One known method of recovering copper from copper ore is referred to as L SX EW process.
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Recovery of Silver, Gold, and Lead Fromplex Sulfide
ABSTRACT The Bureau of Mines investigated a hydrometallurgical procedure to re cover gold, silver, and byproduct lead fromplex lead zinc sulfide ore. A ferric chloride FeCI3 preleach, at 40° C in 6 h, extracted about 50 pct of the zinc and formed insoluble silver and lead chlorides.
Gold Recovery Correctly : 12 Steps Instructables
Recovering your gold in solution is one of the Coolest steps. Whats needed, a plastic spoon, and the sodium Bisulfate or Stumpout. Simply add very small amounts of stumpout, Your Mixture should start to look like the pictures I have provided. This is caused by the SO2 Gas which acts to chemically displace the gold in solution.
US Patent for Method of platinum recovery Patent Patent
Latest Nippon Mining Metals . Patents: InP single crystal wafer and method for producing InP single crystal Substrate and manufacturing method therefor Method for recovering metal from ore Two layer flexible substrate Heat treatment method of ZnTe single crystal substrate and ZnTe single crystal substrate Skip to: · Claims · References Cited · Patent History · Patent
ACTIVATED CARBON REGENERATION METHOD AND GOLD RECOVERY
28/12/2017· A gold recovery method, comprising: a gold leaching step of leaching the gold contained in a gold containing metal sulfide ore, while warming, into an acidic leachate containing chloride ions and/or bromide ions as an anion and copper and iron as a cation a gold adsorption step of adsorbing the gold leached into the acidic leachate on activated carbon and a gold
AU2014263634B2 Method for recovering scandium Google
Method for recovering scandium Download PDF Info Publication number AU2014263634B2. Sumitomo Metal Mining Co Ltd Original Assignee Sumitomo Metal Mining Co Ltd Priority date The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed. 2013 05 10
Methods of recovering platinum group metals from
A 45 kg/h process development unit PDU was constructed and 85 to 95 of the platinum and palladium were recovered from the ore by using mercaptobenzothiazole or sodium isobutyl xanthate as collectors.
METHOD FOR RECOVERING RARE EARTH FROM RARE EARTH
24/09/2014· A method for recovering a rare earth element, wherein a rare earth element is eluted by performing electrolysis in an electrolyte which contains a metal powder of a rare earth element containing alloy. 2. The method for recovering a rare earth element according to claim 1, wherein electric conducting salt is added to the electrolyte. 3.
US Patent for Method of platinum recovery Patent Patent
Latest Nippon Mining Metals . Patents: InP single crystal wafer and method for producing InP single crystal Substrate and manufacturing method therefor Method for recovering metal from ore Two layer flexible substrate Heat treatment method of ZnTe single crystal substrate and ZnTe single crystal substrate Skip to: · Claims · References Cited ·
Biomining: metal recovery from ores withanisms
Bioleaching is a conversion of an insoluble valuable metal into a soluble form by means ofanisms. In biooxidation, on the other hand, gold is predominantly unlocked from refractory ores in large scale stirred tank biooxidation arrangements for further processing steps.
New approaches for extracting and recovering metals from
15/05/2017· Harnessing the abilities of some species of prokaryoticanisms to catalyse the oxidative dissolution of sulfide minerals and thereby to facilitate the extraction of metals is a global biotechnology, used mostly to recover some base including copper, nickel, cobalt and zinc, and precious metals such as gold.
Copper extraction
When rich enough, native copper ore bodies may be treated to recover the contained copper via a gravity separation circuit where the density of the metal is used to liberate it from the lighter silicate minerals. Often, the nature of the gangue is important, as clay rich native copper ores prove difficult to liberate.
Cornstarch Replaces Cyanide In Gold Extraction Popular
14/05/2013· The interaction between the starch fragment and the gold allows the precious metal to be selectively recovered from other materials, including platinum, palladium and
Silver Ore The Mining Processes that Transform Ore into
18/12/2016· Themonly used method of recovering silver from the solution is by Crowe Precipitation. This method employs zinc dust to help precipitate silver from the solution. The silver collected is then filtered off then melted and then made into bullion bars.
Leaching and recovery of platinum group metals from UG 2
that involves reductive roasting of the ore followed by leaching with HCl/chlorine, ion exchange, and recovery of PGM from the ion exchange eluate by reduction. Problems associated with leaching of PGM are discussed and results of laboratory testwork for each of the process steps are given. Leaching and recovery of platinum group metals from UG 2 concentrates yields were not good less than 40
549 . 1 Nippon Steel Corporation
In this study, the Rietveld method was applied for the quantification of sinter ore, which is based on the least square fitting of the entire XRD pattern using crystal structure models and refinements of the crystal structure parameters.
Recovery of Valuable Metals from Spent Lithium Ion
We have previously demonstrated a new pyrometallurgical based method to recover valuable metals from spent lithium ion batteries. However, there was no in depth work on the extraction of valuable metals from polymetallic alloy and manganese rich slag obtained after smelting reduction. In this paper, two new technologies were investigated, withbining converting, water atomization, and
Gold extraction
Generally, recovery of the gold from the sulfide concentrates requires further processing, usually by roasting or wet pressure oxidation. These pyrometallurgical or hydrometallurgical treatments are themselves usually followed by cyanidation and carbon adsorption techniques for
US4337226A Recovery of platinum group metals from ores
Metal values are recovered from ore concentrates by means of dry grinding, followed by a two stage leaching process in which the ground concentrate is first leached with sulfuric acid at a
Yasunari Ishiguro Inventions, Patents and Patent
Method for recovering metal from ore. Patent number: 8585798 Abstract: The copper sulfide ore is leached in the halide bath without using a special oxidant but with the use of only air. The copper and gold in the copper sulfide ore can be leached at high leaching ratio. The treating steps are as follows. 1 Copper leaching process CL. The raw material is charged into the first acidic
Gold extraction
Generally, recovery of the gold from the sulfide concentrates requires further processing, usually by roasting or wet pressure oxidation. These pyrometallurgical or hydrometallurgical treatments are themselves usually followed by cyanidation and carbon adsorption techniques for final recovery of the gold.
Method for recovering rhodium NIPPON MINING METALS CO
02/10/2008· Theprises adding formic acid to ammonium hexachloro rhodate solution to reduce the rhodate, recovering reduced rhodium as rhodium black, and calcining the rhodium black under hydrogen atmosphere without water washing to obtain rhodium sponge.
Topic 3: Ore processing and metal recovery
17/05/2009· Heap leaching:Heap leaching is amonly used for the recovery of precious metals gold and silver, andmonly for base metals and uranium, from amenable, oxidised low grade ores, or occasionally from previously processed tailings.Amenable ores are oxidised.
METHOD FOR RECOVERING GOLD FROM ACTIVATED CARBON
14/12/2017· The present invention is intended for effectively removing copper, iron, sulfur, which are impurities, from activated carbon on which gold is adsorbed before gold eluting in the point of view of gold recovery, and is related to a method for eluting gold from an activated carbon on which at least sulfur S and gold Au are adsorbed, whereas the activated carbon is washed with an alkali solution before
C22B 3 Extraction ofpounds from ores or
US4452706 Metals recovery : 06/05/1984: US4452633 Method for producing cobalt metal powder : 05/1984: 05/29/1984: US4451438 Process for recovering niobium and/or tantalum metal
Topic 3: Ore processing and metal recovery
17/05/2009· Heap leaching:Heap leaching is amonly used for the recovery of precious metals gold and silver, andmonly for base metals and uranium, from amenable, oxidised low grade ores, or occasionally from previously processed tailings.Amenable ores are oxidised.
Cornstarch Replaces Cyanide In Gold Extraction Popular
14/05/2013· Cornstarch Replaces Cyanide In Clean New Gold Extraction Method. Scientists accidentally discover a new way to isolate gold that is much
Metalcess works for metal cycle from ore extraction to
TBRC is a rotary tiltable furnace for smelting anode slime,WEEE,non ferrous metal smelting slag and setting slurry to recover gold, silver and other precious metal. It can also treat copper concentrate and secondary material like scrap copper, scrape lead, lead slag, lead dust,etc.
Recovery of Silver, Gold, and Lead Fromplex Sulfide
ABSTRACT The Bureau of Mines investigated a hydrometallurgical procedure to re cover gold, silver, and byproduct lead fromplex lead zinc sulfide ore. A ferric chloride FeCI3 preleach, at 40° C in 6 h, extracted about 50 pct of the zinc and formed insoluble silver and lead chlorides.
Gold extraction
Generally, recovery of the gold from the sulfide concentrates requires further processing, usually by roasting or wet pressure oxidation. These pyrometallurgical or hydrometallurgical treatments are themselves usually followed by cyanidation and carbon adsorption techniques for final recovery of the gold.
Plasma methods for metals recovery from metalcontaining
01/07/2018· The metal recovery is 91 for copper, 94.4 for nickel and 93.3 for cobalt. Leach residue is rich in precious metals such as gold, silver. Therefore, this method can be used as an effective way to recover precious metals. The use of a 30kW DC plasma torch could effectively recover copper and other valuable metals Mitrasinovic et al., 2011.
C22B 3 Extraction ofpounds from ores or
Patents for C22B 3 Extraction ofpounds from ores or concentrates by wet processes 16,429 04/2014: 04/30/2014: CN103757240A Method
Hydrometallurgical recovery/recycling of platinum by the
01/02/2013· Narita 1998 investigated a method of recovering Pt from sludge and dust. In this process, the leached chloroplatinic acid solution is purified with respect to base metals by precipitation. Pt is then recovered as ammonium chloroplatinate with the addition of ammonium chloride, which was subsequently heated to yield platinum sponge.
MetGrow+ project looks at metals recovery MINING.COM
12/05/2020· These methods can also be used to recover additional metals from other material streams. The project also identified uses for residual material from which metals have already been recovered.
C25C 1 Electrolytic production, recovery or refining of
CN102329955A Comprehensive method for processing laterite nickel ore to produce electrolytic nickel through full wet method : 01/25/2012 : CN101928958B Method and device for recovering metal
Smelting and Roasting Ores to recover gold, silver and
For small scale treatment by individuals, the method is to grind the ore up finely, put it in some sort of tub and keep it moist. Stir and turn it over from time to time to allow the air access to the material. Natural bacteria found in sulfide ore will do the rest. Add a tiny bit of lawn fertilizer to the water you mix in to
Leaching and recovery of platinum group metals from UG 2
that involves reductive roasting of the ore followed by leaching with HCl/chlorine, ion exchange, and recovery of PGM from the ion exchange eluate by reduction. Problems associated with leaching of PGM are discussed and results of laboratory testwork for each of the process steps are given. Leaching and recovery of platinum group metals from UG 2 concentrates yields
C22B 3 Extraction ofpounds from ores or
US4452706 Metals recovery : 06/05/1984: US4452633 Method for producing cobalt metal powder : 05/1984: 05/29/1984: US4451438 Process for recovering niobium and/or tantalumpounds from such
METHOD FOR RECOVERING METAL VALUES FROM REFRACTORY SULFIDE ORE
The method includes the steps of separating clays and fines from crushed refractory sulfide ore, forming a heap from the refractory sulfide ore, producing a concentrate of refractory sulfide minerals from the separated fines and adding the concentrate to the heap, bioleaching the heap to thereby oxidize iron sulfides contained therein, and hydrometallurgically treating the bioleached ore to recover metal
US Patent Application for SODIUM REMOVAL METHOD, METAL
Justia Patents US Patent Application for SODIUM REMOVAL METHOD, METAL CONCENTRATING METHOD, AND METAL RECOVERY METHOD Patent Application Application #20200239981 SODIUM REMOVAL METHOD, METAL CONCENTRATING METHOD, AND METAL RECOVERY METHOD . Aug 1, 2018 JX NIPPON MINING METALS CORPORATION. A sodium removal method according to the present invention is a method