chemistry behind platinium extyraction and refining

Hydrometallurgical recovery/recycling of platinum by the ...

1. Introduction. Platinum (Pt) is a costly precious metal with applications in the manufacturing of catalysts, electronic devices, space materials, biomedical devices and jewelry, among others, due to its chemical resistivity, high-temperature stability and stable electrical properties.

Platinum Refining Process

Platinum Refining Process is described below. Platinum refineries provide an economical and environmentally friendly precious metal recovery service. We buy platinum scrap and separate the pure platinum from other precious metals and waste materials. Platinum scrap such as platinum coins, palladium PD and platinum wire is weighed and then smelted.

Platinum group | chemical element group | Britannica.com

Extraction and refining. The separation chemistry of the platinum-group metals is among the most complex and challenging of metal separations. A brief description of procedures for isolating the platinum-group metals is set forth below, followed by descriptions of assaying and scrap-refining techniques. Individual solubilization

About Platinum - Gold and silver mines

Extraction and Refining The separation chemistry of the platinum-group metals is among the most complex and challenging of metal separations. A brief description of procedures for isolating the platinum-group metals is set forth below, followed by descriptions of assaying and scrap-refining …

process of ore separated from platinum - depalenrammers.nl

South Africa, with vast platinum ore deposits in the Merensky Reef of the Bushveld complex, is the world's largest . Process for recovering platinum group metals from ores also . Aug 22, 1978 A process is described for the separation of platinum group metals (PGM) from ores also containing iron, nickel and copper as sulfides.

Gold & Platinum Recovery Methods | Sciencing

In another technique, sulfuric acid dissolves the ceramic honeycomb, leaving behind the platinum. The ceramic can also be volatized, or turned into a gas or liquid, a process that would leave behind the platinum. Platinum recovery from catalytic converters and electronics components is a much more expensive and difficult process than gold recovery.

Platinum - Wikipedia

Platinum is a chemical element with the symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal.Its name is derived from the Spanish term platino, meaning "little silver".

Instructions for Refining Platinum with Aqua Regia

Instructions for Refining Platinum with Aqua Regia. Introduction. ... (this is due to a series of not well understood chemical reactions that take place in the refining process). ... When the test shows negative, decant the solution, leaving behind the pure gold. And now it's time to drop the platinum.

How to Recover Platinum from Catalytic Converters: 5 Easy Tips

Extracting Platinum from Catalytic Converters. For those who seek to have a piece of this special metal, look no further than your CCs. There are several methods for how to recover platinum from catalytic converters, and other metals, too. But in most cases, the assistance of …

Chemistry of Petroleum 4: Treatment of Hydrocarbons ...

The Chemistry of Petroleum 4: Treatment of Hydrocarbons will help students explore the chemical treatment processes by which distilled petroleum fractions are converted to produce useful fuel oils. This particular lesson is a continuation of lesson 3, which taken together complete the crude oil refining …

Process for refining diamonds - Anshal, Inc.

Jul 28, 1992· The invention teaches a deep boiling process for refining diamonds, be they raw or cut and polished. The process provides for initially precleaning the diamonds with solvents including alcohol, acetone, sulfuric acid, hydrogen peroxide, and/or water, to remove surface oils, hydrocarbons and other common surface impurities therefrom.

Refining of Metals: Distillation, Zone Refining ...

Copper refining is done by the electrolytic process. Its impurities of iron and zinc will dissolve in the copper sulphate solution. And its other impurities of gold or silver or platinum will remain behind. Zone Refining. Zone refining is a special method we use to purify metals. It …

How is platinum extracted from its ore - slideshare.net

Sep 19, 2014· How is platinum extracted from its ore 1. 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).

Extraction and Refining of the Platinum Metals | Johnson ...

A major development in the world's platinum industry took place in the early nineteen twenties when large deposits of platinum bearing ore were discovered in the Transvaal in South Africa. This led to the formation in 1931 of Rustenburg Platinum Mines Limited to work these deposits, and this company remains to this day the only platinum producer in South Africa and the only major producer in ...

What are the chemical or physical separation methods used ...

This answer I wrote earlier today will explain how it's done once the gold is poured into doré at the mining site. answer to What is the chemical method used to refine gold? Now, if you're searching for how it is first separated from the rock, thi...

extraction and processing of platinum - supremewheels.co.za

PGM Platinum Mining & Extraction 911 Metallurgist. Mar 19, 2017 A library of 244 scientific research papers on PGM & Platinum geology, mining and metallurgical extraction methods and processes. Recovery of platinum, palladium and rhodium from industrial . Nov 3, 1997 Raflinate of the second extraction contained Rh and a small amount of base metals.

solvent extraction in precious metal refining - halwachs.de

Metal Extraction As far as solvent extraction of metals or precious metals is concerned an additional chemical, a so-called extractant, is necessary to form a chemical compound (= complex) with the solute and thus make it soluble in the organic phase.

The Properties and Applications of Platinum

Jun 25, 2019· Platinum is a dense, stable and rare metal that is often used in jewelry for its attractive, silver-like appearance, as well as in medical, electronic, and chemical applications due to its various and unique chemical and physical properties.

Gold refining by solvent extraction—the Minataur™ Process

A solvent-extraction route developed at Mintek for the chemical refining of gold from chloride media has shown considerable promise for the selective extraction of gold from silver, platinum-group metals (PGMs), and base metals, and has potential applications in the refining of gold from various feed materials. During the past year, two pilot-plant

Digestion | chemistry | Britannica.com

extraction and refining of thorium. In thorium processing: Acidic and alkaline digestion. Although monazite is very stable chemically, it is susceptible to attack by both strong mineral acids (e.g., sulfuric acid, H 2 SO 4) and alkalies (e.g., sodium hydroxide, NaOH). In the acid treatment, finely ground monazite sand is digested at 155 to 230 ...

Gold and Platinum Refining & Recovery Systems / Equipment

An overview on how to refine precious metals. There are many kinds of materials that yield pure gold, platinum, or silver when refined. Though it's usually a little intimidating the first time you do anything, refining precious metals yourself is relatively easy to do (even with no experience) provided you have the right information, supplies, and equipment.

List of purification methods in chemistry - Wikipedia

Purification in a chemical context is the physical separation of a chemical substance of interest from foreign or contaminating substances. Pure results of a successful purification process are termed isolate. The following list of chemical purification methods should not be considered exhaustive.

Extraction of Zinc | Application Of Zinc Refining Process

The carbon from coke acts as the reducing agent in this reaction. The reaction of the final step of extraction of zinc is (2 ZnO + C -> 2 Zn + CO^{2}) Since, the boiling point of Zinc is way back at 1180 K, the zinc formed immediately vaporizes and distills over leaving behind non-volatile impurities such as Cadmium, Lead and Iron.

Gold extraction from ore concentrate - Gold Refining Forum.com

Jun 26, 2019· I am new to this forum but professionally well qualified to perform chemical reactions following safety protocols. I have received an ore samples having following composition determined through EDXRF. In order to verify the compositions i carried our XRD diffraction as well of this ore and the spectra of gold and platinum is popping up there.

refining of platinum group metals / priciple flow sheet

most sophisticated industrial inorganic chemistry: refining of platinum group metals ore concentrate. pgm ore concentrate The figure below shows a typical assay of a South African platinum group metals ore concentrate obtained as the filter cake after sulfuric acid leach (according to the Sherrit process) of a Merensky reef converter matte.

Platinum extraction from a Catalytic Converter. - YouTube

Apr 23, 2018· Platinum extraction from a Catalytic Converter. ... Unsubscribe from Chemistry games? Cancel Unsubscribe. Working... Subscribe Subscribed ... Platinum Refining …

SOLVENT EXTRACTION TECHNOLOGY IN RECOVERY AND REFINING …

TY - JOUR. T1 - SOLVENT EXTRACTION TECHNOLOGY IN RECOVERY AND REFINING OF PLATINUM GROUP METALS. AU - Fuwa, Akio. PY - 1987/4. Y1 - 1987/4. N2 - In this review, solvent extraction technology in precious metal recovery and refining from nickel/copper electrolytic refining slimes and platinum metal resources from the Merensky reef in South Africa is described along with …

Gold parting - Wikipedia

Gold parting is the separating of gold from silver.Gold and silver are often extracted from the same ores and are chemically similar and therefore hard to separate. Over the centuries special means of separation have been invented. The very earliest precious metals had mixes of gold and silver; gold and silver alloy is called electrum.With the advent of coinage, methods had to be invented to ...

How to precipitate palladium and platinum from aqua regia ...

Mar 16, 2018· My piggy bank. https://streamlabs.com/elektrikisagris How to precipitate palladium and platinum from aqua regia solution. Twitter https://twitter.com/Elektri...

Extraction and Refining of the Platinum Metals

Extraction and Refining of the Platinum Metals A COMPLEX CYCLE OF SMELTING, ELECTROLYTIC AND CHEMICAL OPERATIONS ... basic process for extraction of the platinum metals has remained essentially the same. ... Chemical operations, for the separation and refining of the individual metals.