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oa Hydrocarbonyl Processes for Conversion of Platinum-Rhodium-Palladium Alloys
Technological possibilities of a new process for pgms extraction
- Source: Johnson Matthey Technology Review, Volume 64, Issue 1, Jan 2020, p. 42 - 47
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- 01 Jan 2020
Abstract
A novel process for the recovery of platinum group metals (pgms) from ternary alloys using a hydrocarbonyl process is proposed. The hydrocarbonyl process involves treatment of a chloride solution of the pgms with carbon monoxide at ambient pressure. The results demonstrate that the process can provide high purity pgms from a ternary platinum-rhodium-palladium alloy such as that obtained from palladium-nickel catchment alloys used with platinum-rhodium gauzes during high temperature ammonia oxidation.
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