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patent extraction of gold and platinum from ore

Jun 15, 2012 Search for Goldau Recovered As Free Metal Patents and Patent Applications Class 75/736 Filed with the USPTO A method for extraction a metal from a mineral ore including a refractory ore contained in a metal The method includes concentration of refractory ore followed by micronization of the concentrate until gold is liberated by the

Electrolytic Gold Extraction Experiment Ore from Colorado number A This ore is a rotten granite containing a very small amount of sulphide, no telluride, a little copper and considerable iron as oxide The gold is in a very fine state of division

Citigold Corporation has access to a modern gold extraction plant that is located away from the populated areas of Charters Towers about 10 kilometres south west of the city centre along the Gregory Highway on the historically rich Black Jack mine site

Nov 22, 1983Ł A process for extracting gold, silver, platinum, lead or manganese metals from ore comprising such metals, in steps comprising: a pulverizing an ore material comprising gold, silver, platinum, lead or manganese into fine particles b drying the ore particles thoroughly to

Dec 12, 2012 How Is Platinum Mined Life123 Articles and Answers about Life The first step in the mining process is getting the platinum ore out of the ground and into a refinery or processing plant Two methods exist to extract platinum ore: »More detailed

Gold is an ancient staple of jewelry and ornament Platinum, too, is a perfect setting for diamonds and other precious gems The two metals also have many industrial uses, and are common components in many electronics Gold and platinum can be recovered from computers, catalytic converters, plated materials and many other common items

For extracting gold from low grade ores, heap leaching is practiced huge heaps are sprayed with a dilute solution of sodium cyanide, and this percolates down through the piled ore, dissolving the gold There are very well defined rules for the safe and responsible use of cyanide as laid out in the International Cyanide Code Gold refining

Gold CIL Carbon in Leach Process is an efficient design of extracting and recovering gold from its ore By cyaniding and carbon leaching crushed gold ore slurry simultaneously, CIL process lower the gold mining operation cost and increase gold recovery rate to a degree of 99

Gold is usually found alone or alloyed with mercury or silver, but can also be found in ores such as calaverite, sylvanite, nagyagite, petzite and krennerite Most gold ore now comes from either open pit or underground mines The ores sometimes contain as little as 5/100 of an ounce of gold

Jun 29, 1982 Recovery of platinum group metals from ores United States Patent 4337226 The residue is then leached with a solution comprising sulfuric acid and NaOCl or H 2 O 2 to extract platinum, palladium, copper and gold Inventors: A process for recovery of nickel, iron, platinum, palladium, copper and gold values from ore concentrates

Jun 11, 2017 markings like leafy or triangle or scales is the best way to detect genuine palladium platinum or white gold from ore +639057766909 what gold ore looks like mining 101 gold

A process for treating a particulated gold bearing ore to recover the gold therein is disclosed The process includes roasting the ore to remove sulfides as sulfur dioxide followed by chlorination of the ore at a temperature of about 350° C in the presence of iron to form a mixture of volatile gold chlorides and volatile gold iron chlorides in the chlorine off gases followed by condensing

Smelting and Roasting Gold and Silver sulfide Ores to recover values: Nevada Outback Gems Once the ores are fully roasted, and the sulfur is driven off, the extraction of the gold or silver from the ore is not especially difficult Treatment of the roasted ores was done by normal methods such as amalgamation or cyanide treatment

Effect ofpH on extraction of platinum, palladium and gold by 24 h cyanidation of Coronation Hill ore Gold values include recovery by amalgamation before cyanidation Sample A is a diorite, sample B is a green tuffaceous siltstone and sample C is a quartz feldspar porphyry

Patents for C22B 3 Extraction of metal compounds from ores or concentrates by wet processes 16,429 04/2014: 04/30/2014: CN103757240A Method

Apr 27, 2013 How is platinum extracted from its ore Answer: Platinum is rarely found on its own, but in combination with other base and precious metals Extraction of the pure metal from ores is a complex process, »More detailed

How to Extract, Separate Refine Gold Extract the gold ore and transport it to your gold processing unit Separate the gold from unwanted rocks and minerals using one of several methods You can mix the gold ore with sodium cyanide, which will attach itself to the gold and separate other elements such as zinc

Oct 11, 2013 Silver, Gold, and Platinum group metals ores are presented in this second video which educates viewers on exploration and mining of precious metals ores This is

Extraction of gold using cyanide Gold is found in very low concentrations in the ore from which it is mined To collect the gold from the ore it needs to be separated from the other minerals in the ore To do this the gold needs to be made into a soluble form so that it can be separated from the other minerals as gold is insoluble

The method of extracting minerals from ores containing metallic, gold and platinum group metals Abstract: The essence of the method: get water slurry slurry of finely released particles of ore, condition the suspension of the sludge an effective amount of hemicellulose, a mineral collector and foaming agent and produce valuable minerals by

Gold CIL Carbon in Leach Process is an efficient design of extracting and recovering gold from its ore By cyaniding and carbon leaching crushed gold ore slurry simultaneously, CIL process lower the gold mining operation cost and increase gold recovery rate to a degree of 99

It is advisable to consider the possibility of joint in one operation of extraction of gold, platinum and palladium from concentrates produced from ore Sukhoi Log with a gold grade of 100 g/t and a platinum concentration of 20 g/T the essence of the invention is that complex chlorides of gold, platinum and palladium are sorbed effectively

Of all the methods of extracting gold processing it from its ore, I used a few to evaluate two principal flowsheets in this case study The flowsheets utilized operations that involved flotation, cyanidation and gravity concentration Tests that mirror each of these unit operations were utilized to evaluate the principal flowsheets This page offers a comparative review of gold recovery

Gold is typically associated with platinum group metal PGM ores and is ultimately recovered in the precious metals refineries This chapter summarizes the extraction and refining of gold from PGM bearing concentrates and secondary materials

The lifecycle of a gold mine People in hard hats working underground is what often comes to mind when thinking about how gold is mined Yet mining the ore is just one stage in a long and complex gold mining process Long before any gold can be extracted, significant exploration and development needs to take place, both to determine, as

Gold, silver and platinum are particularly amenable to recovery from complex ores by this method A process for the recovery of precious metal values from ores whereby the ore, in particulate form is heated with a mixture of solid dry chloride and nitrate salts, in the absence of oxygen Ammonia extraction of gold and silver from ores and

Ore is stockpiled 1 at the processing plant, and the process begins by feeding the ore into a hopper with a loader The ore is conveyed, and lime is added 2 to raise the pH of the ore Following crushing through a jaw crusher 3, the ore is fed into the semi autogenous grinding

Jan 23, 2014 Mining for Precious Metals explained: Gold, Silver, Platinum, Palladium TheIPMI Gold extraction with BORAX for small scale miners Chris Martenson on gold, silver, platinum

Nov 22, 1983Ł A process for extracting gold, silver, platinum, lead or manganese metals from ore comprising such metals, in steps comprising: a pulverizing an ore material comprising gold, silver, platinum, lead or manganese into fine particles b drying the ore particles thoroughly to

The ore body formation affects the mining method and the sequence of extracting different zones so that the beneficiation process can be effective Changes in ore properties, such as ore gold distribution and hardness have influence in gold liberation and consequently will be affected the recovery process

A process and system for recovery of gold from an ore having the steps of i providing the ore containing the gold to be recovered, ii leaching the ore in an oxidative chloride medium, including a nitrogen species to produce a solution comprising gold and iii recovering the gold from the solution The gold in a preferred embodiment is recovered from refractory and carbonaceous ores

Platinum is an incredibly rare metal that is mined and extracted in a variety of different ways depending on the technological sophistication of the miners attempting to extract it It is incredibly difficult to find in large pure quantities, so it needs to be extracted from the ore in a very specific way

Patents for C22B 3 Extraction of metal compounds from ores or concentrates by wet processes 16,429 CN101045962A Method of reclaiming platinum from

The ore is reduced to a fine state of division and amalgamated simultaneously in a stamp mill, the solid gold amalgam separated from the liquid mercury by filtration through leather under pressure, and the mercury distilled Complete extraction of the gold by amalgamation is impossible, a part remaining in the mud of the stamp mills

Platinum mining, however, differs from gold mining in several ways Unlike gold reefs, which are sedimentary deposits resulting from the settling of granular particles on the bed of an inland lake and subjected to great pressure, platinum reefs are igneous rocks

Separating the Platinum Group Metals by Liquid Liquid Extraction NEW PROCESS HAS POTENTIAL ECONOMIC ADVANTAGES OVER CONVENTIONAL SELECTIVE PRECIPITATION By P Charlesworth Marthc ! Kuqtenhurg Refiners IK Limited, Roston, England To extract the platinum group metals from ore, and to refine them to the very high purity required for their many applications,

Effect ofpH on extraction of platinum, palladium and gold by 24 h cyanidation of Coronation Hill ore Gold values include recovery by amalgamation before cyanidation Sample A is a diorite, sample B is a green tuffaceous siltstone and sample C is a quartz feldspar porphyry

 
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