Platinum Coating Removal Once the platinumcoated alyst material has been removed from a alytic converter, the platinum can be removed from each individual piece of alyst. The platinum, which appears as a silvery, bronze color loed on the outer surface of each piece of alyst, can be picked and peeled off by hand or by using a ...

Hydrometallurgical extraction of platinum group metals from a lowgrade ore concentrate. [Thesis]. University of Cape Town,Faculty of Engineering the Built Environment,Department of Chemical Engineering, 2009 [cited yyyy month dd].

25/09/2019 · Recovery of PGMs (especially rhodium, platinum, and palladium) from different spent manufactured products (like alytic converters) is considered as an important task as they are rarely found in nature, and they possess high economic value. In this work, the honeycomb of a car alytic converter was primarily processed by crushing, grinding, and then treating in a hydrogen atmosphere.

Literature data are given on the extraction of platinumgroup 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 platinumgroup ...

A process for treating chromitebearing ores to obtain useful mineral values, especially platinum group metal, therefrom wherein the ore is separated into magnetic and nonmagnetic fractions; the nonmagnetic fraction, containing a substantial portion of the platinum group metals, is concentrated and smelted to produce a metal layer containing platinum group metals; and the platinum group ...

All platinum and 1618 wt.% of aluminum were dissolved at 75 degrees C in 2025 min. Separation of platinum from the acidic solution was accomplished by solvent extraction. The best extractant (> 99 wt.%) was Aliquat 336 (a quaternary ammonium salt) in one stage (A/O phase ratio = 1, v/v).

01/02/2014 · The extraction behavior of Pt depends upon the concentration of the chloride ion, the acid concentration and other metallic and nonmetallic ions in the solution. The use of amines more selectively extracts Pt when compared to TBP. b) Platinum is mainly extracted in the form of .

The extraction of platinum and rhodium from scrapped honeycomb autoalyst into hydrochloric acid/aluminum chloride/nitric acid solutions is described. Results are given for the effects of ...

Platinum is a chemical element with the symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverishwhite transition name is derived from the Spanish term platino, meaning "little silver".. Platinum is a member of the platinum group of elements and group 10 of the periodic table of has six naturally occurring isotopes.

06/01/2018 · Abstract. Platinum Group Metals (PGMs) play a significant role in the manufacturing of alysts, super alloys, electronics, space materials, biomedical equipments, jewellery, etc. due to their excellent electrical and thermal conductivity as well as chemical resistivity. The rising demand of PGMs in industrial appliions and their limited ...