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High-Temperature Cyanide Leaching of Platinum-Group Metals from Automobile Catalysts: Pilot Plant Study.

PB95217089

Publication Date	1995
Personal Author	Kuczynski, R. J.; Atkinson, G. B.; Dolinar, W. J.
Page Count	24
Abstract	The U.S. Bureau of Mines Reno Research Center operated a batch pilot plant to demonstrate high-temperature cyanide leaching or recovering platinum group metals (PGM) from automobile catalysts. Approximately 1,600 kg of used pellet, monolith, and metal support catalyst containing 1,700 g (54 tr oz) of PGM were processed. Average extractions from the used pellet catalyst were 96 pct Pt, 95 pct Pd, and 73 pct Rh. Heating destroyed cyanide to less than 0.2 mg/L free and total cyanide. Both the pellet and monolith residues were evaluated for disposal using the EPA Toxicity Characteristic Leaching Procedure (TCLP).
Keywords	Platinum Catalytic converters Automobiles Cyaniding(Beneficiation) Leaching Materials recovery Scrap Salvage Catalysts Pilot plants Performance tests High temperature tests
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 68C - Solid Wastes Pollution & Control 99B - Industrial Chemistry & Chemical Process Engineering 85H - Road Transportation 43F - Environment 91A - Environmental Management & Planning
Corporate Authors	Bureau of Mines, Reno, NV. Reno Research Center.
Supplemental Notes	See also PB93-188100.
Document Type	Technical Report
Title Note	Rept. of investigations/1995.
NTIS Issue Number	199516

High-Temperature Cyanide Leaching of Platinum-Group Metals from Automobile Catalysts: Pilot Plant Study.

High-Temperature Cyanide Leaching of Platinum-Group Metals from Automobile Catalysts: Pilot Plant Study.
PB95217089

Publication Date	1995
Personal Author	Kuczynski, R. J.; Atkinson, G. B.; Dolinar, W. J.
Page Count	24
Abstract	The U.S. Bureau of Mines Reno Research Center operated a batch pilot plant to demonstrate high-temperature cyanide leaching or recovering platinum group metals (PGM) from automobile catalysts. Approximately 1,600 kg of used pellet, monolith, and metal support catalyst containing 1,700 g (54 tr oz) of PGM were processed. Average extractions from the used pellet catalyst were 96 pct Pt, 95 pct Pd, and 73 pct Rh. Heating destroyed cyanide to less than 0.2 mg/L free and total cyanide. Both the pellet and monolith residues were evaluated for disposal using the EPA Toxicity Characteristic Leaching Procedure (TCLP).
Keywords	Platinum Catalytic converters Automobiles Cyaniding(Beneficiation) Leaching Materials recovery Scrap Salvage Catalysts Pilot plants Performance tests High temperature tests
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 68C - Solid Wastes Pollution & Control 99B - Industrial Chemistry & Chemical Process Engineering 85H - Road Transportation 43F - Environment 91A - Environmental Management & Planning
Corporate Authors	Bureau of Mines, Reno, NV. Reno Research Center.
Supplemental Notes	See also PB93-188100.
Document Type	Technical Report
Title Note	Rept. of investigations/1995.
NTIS Issue Number	199516