Extraction of platinum metals from automobile catalysts / Lobanov V., Radionov B., Evdokimov A., Skorohodov V. // Proceedings of the 2008 Global Symposium on Recycling, Waste Treatment and Clean Technology, REWAS 2008. - 2008. - V. , l. . - P. 1061-1063.

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Type:

Conference Paper

Abstract:

The bulk of raw materials in metallurgy of secondary platinum metals are the wastes such as multilayered ceramic-metal systems, e.g. the spent catalysts of the chemical and petrochemical industry, automobile catalysts, etc. Due high chemical resistance of a ceramic basis the extraction of platinum metals by leaching even at very fine crushing is poor. The study of sorption leaching of platinum and a palladium from the spent automobile catalysts are carried out. The average content of PGM is 0.5%. A few methods of raw materials sampling were compared: 1) direct hydrometallurgical leaching of platinum metals from the fine-grained catalyst and atomic absorption analysis of the obtained solutions; 2) fusion to a metal or sulphidic collector of precious metals with the alloy analysis by direct spectrometry; 3) fusion with dissolution of a precious metals collector and atomic absorption analysis of PGM in solutions. Leaching allows detecting out no more than 90% of a palladium and 80% of platinum. Fusion to a collector gives the best results at the chemical ending. Researches on sorption leaching are executed. Under optimum conditions the extraction of platinum metals to concentrates is comparable with similar indicators of collector fusion.

Author keywords:

Automobile catalysts; Dissolution; Fusion; Pig-iron; Platinum metals; Slime

Index keywords:

Absorption; Absorption spectroscopy; Automobile materials; Catalysis; Catalysts; Ceramic materials; Chemical resistance; Dissolution; Extraction; Industrial waste treatment; Leaching; Metal analysis;

DOI:

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Смотреть в Scopus:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-62449245376&partnerID=40&md5=162d8f1a7c616c564af4a86b70601d00

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Поле	Значение
Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-62449245376&partnerID=40&md5=162d8f1a7c616c564af4a86b70601d00
Affiliations	Ural State Technical University, 19, Mira str, Ekaterinburg, Russian Federation
Author Keywords	Automobile catalysts; Dissolution; Fusion; Pig-iron; Platinum metals; Slime
References	Kotljar, Y., Meretukov, M., Strizhko, L., (2005) Metallurgy of noble metals, p. 432. , Moscow: The Publishing house »Ore and metals«; The handbook, Sampling and analysis of precious metals. (oscow: Metallurgy, 1978); Patent RU 2154117, C 22 B 11/02, 10.08.2000; Patent RU 2112064 C, C 22 B 11/02, 27.05.1998
Correspondence Address	Lobanov, V.; Ural State Technical University, 19, Mira str, Ekaterinburg, Russian Federation
Conference name	2008 Global Symposium on Recycling, Waste Treatment and Clean Technology, REWAS 2008
Conference date	12 October 2008 through 15 October 2008
Conference location	Cancun
Conference code	75513
ISBN	9780873397261
Language of Original Document	English
Abbreviated Source Title	Proc. Global Symp. Recycl., Waste Treat. Clean Technol., REWAS
Source	Scopus