Cyanide leaching chemistry of platinum-group metals

Sibrell, P. L.; Atkinson, G. B. (Gary B.); Walters, L. A. (Larry A.)

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Cyanide leaching chemistry of platinum-group metals

1994
By Sibrell, P. L. ; Atkinson, G. B. (Gary B.) ; Walters, L. A. (Larry A.)
Series: Mining Publications

[PDF-1007.39 KB]

English

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Personal Author:

Sibrell, P. L. ; Atkinson, G. B. (Gary B.) ; Walters, L. A. (Larry A.)

Sibrell, P. L. ; Atkinson, G. B. (Gary B.) ; Walters, L. A. (Larry A.) Less -
Corporate Authors:

United States. Bureau of Mines.
Description:

"Previous research by the U.S. Bureau of Mines has shown that autoclave cyanide leaching of used automobiles exhaust catalysts for recovery of platinum group metals (PGM) is technically feasible. The purpose of this work was to investigate the chemistry of the dissolution of PGM in cyanide solutions, in more detail. Where possible, samples of pure, elemental PGM powders or foils were used instead of automobile exhaust catalysts, because of their greater purity. Leaching rate studies showed that the rate of solubilization was greatest for Pd, followed by Pt and Rh. Although the rate of chemical reaction was the controlling step for the dissolution of elemental Pt and Rh samples, the rate diffusion was rate limiting for PGM in catalyst samples." - NIOSHTIC-2

NIOSH no. 10012388
Subjects:

[+]

Automobiles -- Catalytic Converters -- Recycling. Cyanide Process. Leaching. Platinum Group Catalysts -- Metallurgy.
Series:

Mining Publications
Subseries:

Report of Investigations
Document Type:

Text
Genre:

Report
CIO:

National Institute for Occupational Safety and Health (NIOSH)
Pages in Document:

iv, 12 numbered pages
NIOSHTIC Number:

10012388
Resource Number:

RI-9507
Collection(s):

National Institute for Occupational Safety and Health
Main Document Checksum:

[+]

urn:sha-512:8220140035d93e8862e19d5e52980dc6f7608e33a4204dcd24951ec9d7a6437e037bbef13395891a072c359145391ec057fcc5c33980e53fe0c85f0b3be98412
Download URL:

https://stacks.cdc.gov/view/cdc/10086/cdc_10086_DS1.pdf
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Cyanide leaching chemistry of platinum-group metals

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