extraction of platinum from the pit

Rapid and selective recovery of palladium from …

 · Under these conditions, the extraction of Pd(II) is negligible, i.e., < 0.5%. Thus, extractant 1 shows very high Pd(II) extraction ability, whereas that of 2 is negligible. From these results, it ...

Extraction and Refining of the Platinum Metals | Johnson …

Here pure nickel cathodes are produced, while the platinum metals accumulate in the anode residues and are removed for the separation and refining of the individual metals. As in the copper refinery, the cells are constructed of rubber-lined concrete and 24 …

Extracting platinum metals

 · Extracting platinum metals. By Paul Grad | March 1, 2016. The traditional method for recovering platinum-group metals (Pt, Pa, Ir, Os, Rh, Ru and Au) is not economically viable in the case of low-grade deposits, but researchers from the Western Australian School of Mines, Curtin University (Perth; ) and the Dept. of Processing ...

US4295881A

Process for extraction of platinum group metals from chromite-bearing ore Download PDF Info Publication number US4295881A US4295881A US06/158,184 US15818480A US4295881A US 4295881 A US4295881 A US 4295881A US 15818480 A US platinum ...

University of Exeter

Mining Waste Products The types of waste materials generated are dependant upon the type of mining activity. Around the Fal Estuary there have been effectively three main types of mining activity: (1) the recovery of cassiterite from the river sediments (so called tin streaming or placer mining); (2) the underground and opencast mining for metal (hard rock mining); and (3) opencast mining for ...

Surface mining – strip, open pit, mountaintop removal, …

Open-pit mining: This type of mining involves the extraction of rock or minerals from the earth by forming an open pit. This process differs from the other method which requires digging into the earth. This method of mining is carried out where useful minerals or

What are the different methods of mineral extraction?

What are the different methods of mineral extraction? There are four main mining methods: underground, open surface (pit), placer, and in-situ mining. Underground mines are more expensive and are often used to reach deeper deposits. Surface mines are typically used for more shallow and less valuable deposits. Click to read in-depth answer.

extraction of platinum

extraction of platinum product list K Series Mobile Crushing Plant Mobile Vibrating Screen Belt Conveyer Sand Washing Machine S5X Series Vibrating Screen GF Series Vibrating Feeder Ball Mill Raymond Mill MW Series Micro Powder Mill T130X Superfine ...

extraction of platinum

Extraction Studies in the Platinum Metals Group. six platinum group metals only %% iridium and traces of platinum are extracted by ether from 6N hydrochloric acid. Discussing the role of extraction in analytical chemistry, Morrison (25) notes also that osmium

(PDF) Commercial Processes for the Extraction of Platinum …

The Kell Process has been developed for the extraction of platinum group metals (PGMs)and base metals from sulphide flotation concentrates.

extraction of platinum from stones

extraction crushing grinding and flotation of platin gerber a100 grinding stone, Crushing And Griding Of Platinum See how our precious metals refining processes and equipment yields you the highest returns on gold, silver, platinum and palladium.

Refining Approaches in the Platinum Group Metal Processing Value …

metals Review Refining Approaches in the Platinum Group Metal Processing Value Chain—A Review Pia Sinisalo and Mari Lundström * Aalto University, School of Chemical Engineering, 02150 Espoo, Finland; [email protected]fi * Correspondence: [email protected]fi; Tel.: +358-40-487-3434 ...

Platinum extraction from a Catalytic Converter.

Platinum extraction from a Catalytic Converter. - . If playback doesn''t begin shortly, try restarting your device. Videos you watch may be added to the TV''s watch history and influence TV ...

Efficient Chloride Salt Extraction of Platinum Group …

 · We show that platinum (Pt) and palladium (Pd) can be efficiently removed from spent catalytic converters by means of a sintering process involving chloride salts. For Pt, mixing the crushed catalyst in an aqueous solution of chloride salts at catalyst/salt weight ratios ranging from 2.5 to 6.7, followed by drying, and 2-h sintering in the reactor furnace at 1100 °C, results in extraction of ...

(PDF) Power earth auger modification for waste …

The extraction auger was developed to meet the need for a low cost, effective method to empty pit latrines in difficult to access locations. | Flow rate vs. auger rotational speed for 1.5 m long ...

Improving recoveries of platinum and palladium from …

 · For pH values below 7, Pd extraction is strongly suppressed (≪ 5%) whereas Pt extraction is intermediate in the siderophore leaching step with recoveries of about 12%. It should be noted that ΔpH (difference from pH start to pH end ) was in the range of 0 to − 0.2 for all experiments except for the pH 6.5 leach, for which it was about − 3.

Extraction of platinum-group metals from chloride …

Literature data are given on the extraction of platinum-group metals from hydrochloric acid solutions by salts of quaternary ammonium bases, as well as the authors'' data on the binary extraction of platinum metals from chloride solutions. The possibility is shown of using binary extractants based on quaternary ammonium bases (QABs) for efficient extraction and separation of platinum-group ...

Extraction of platinum(IV) from hydrochloric acid …

Abstract The extraction of Pt(IV) by Alamine 304 has been studied measuring the percentage of metal extraction as a function of different amine and metal concentrations and aqueous ionic strengths. Results indicated the formation of the species (R 3 NH + ) 2 PtCl 6 2− in the organic phase, the extraction reaction is exothermic (ΔH° = −1.9 kJ/mol). The formation constants vary linearly ...

Extraction of Platinum Group Metals | IntechOpen

 · Within the Bushveld Igneous Complex, the Merensky reef, the Platreef and Upper Group 2 (UG2) reef are exploited for platinum production [ 1, 4, 9 ]. Merensky and Platreef have similar chemical and mineral composition [ 6, 10 ]. These reefs typically have fairly low contents of sulphides.

Solvent extraction of platinum group metals.

A survey has been made of previous work on the application of solvent extraction and gaseous reduction processes to refining of platinum group metals. Amine extraction processes have been investigated by chemical shake-up tests and distribution ratios ...

Technology of extraction of platinum metals from the wastes of …

Extraction of platinum group metals from the wastes of fire-clay lining of glass-melting apparatuses is carried out using the pyrohydrometallurgical processes, which have a long production cycle and exclude the possibility of waste recycling at waste-forming enterprises.

Y-010 The Platinum Path Kit: A Single Nucleic Acid Purification Kit …

The Platinum Path Extraction Kit was developed to replace Idaho Technology''s five previous spin-fiter based purification kits. The 1-2-3 Sample Purification Kits support the JBAIDS system by purifying pathogen nucleic acid from environmental, clinical, and food samples.

Extraction agent for palladium and platinum and process …

It is found from the above results that the extraction is not affected by the change of the hydrochloric acid concentration. Example 3 The extraction efficiencies were measured by shaking for 24 hours a hydrochloric acid solution containing palladium and platinum and ...

Process for extraction of platinum group metals from …

Process for extraction of platinum group metals from chromite-bearing ore United States Patent 4295881 Abstract: A process for treating chromite-bearing ores to obtain useful mineral values, especially platinum group metal, therefrom the non-magnetic fraction ...

Studies on the extraction of platinum metals with tri-iso …

The extraction of Pd(II), Rh(III), Ir(III), Au(III) and Pt(IV) from hydrochloric and hydrobromic acid with 5% tri-iso-octylamine solution in carbon tetrachloride has been studied. The gold extract from hydrochloric acid is yellow and absorbs at 325 nm, the palladium compound is red and absorbs at 290 nm and 467 nm, and the platinum compound is blood-red and shows absorption at 268 nm.

Extraction Studies in the Platinum Metals Group.

Solvent extraction as a method for affecting separations in the platinum group metals has not been widely used as can be seen in the review by McBryde (22). Irving (18) in his review of extrac tion and its application to inorganic analysis has noted that

Extraction Platinum Process

extraction process flow chart mineraloct 22 2015copper mining extraction process flow chartdirect from the pit the oxide ore is piled onto large lined leach pads and the sulfuric acidassaying pgm platinum mining extraction cyanide gold extraction ...

How is platinum extracted from its ore

 · An ore is a naturally occurring mineral from which a pure metal can be extracted. For Platinum, the two- chief minerals are sperrylite or platinum arsenide (PtAs2) and co-operate or platinum sulfide (Pts). Extracting Platinum from these ores is arguably one of the most capital and labour intensive operations in the world.

(PDF) Extraction of Platinum Group Metals

Ionic liquids (ILs) with amino moieties were designed and synthesized as extractants for the selective extraction of platinum group metal (PGM) ions into IL phases from mixed aqueous HCl solutions...

Selective Extraction of Palladium and Platinum from …

Extraction of Palladium(II) and Platinum(IV) from Hydrochloric Acid Solutions with Trioctylammonium Nitrate Ionic Liquid without Dilution. Journal of Solution Chemistry 2018, 47 (8), 1293-1308.

Solvent extraction of platinum using amine based …

 · A critical review for the extraction, scrubbing and stripping of platinum. • Anionic extractants have been used for Pt extraction from a chloride solution. • Possible separation of Pt in the presence of Pd, Rh, Fe and other associated metals. • This study proposes flow

platinum mining, mining of platinum, platinum, …

Platinum however have many downfalls to mining it, for example, opening pit mining is very disturbing to the land on which it is happening. Platinum is also very costly and with the economy how it is many people might not be able to afford platinum.