Comparative evaluation of the high-temperature fusion and the autoclave dissolution of process concentrates upon gravimetric determination of palladium
| Autor: | T. M. Malyutina, Yu. A. Karpov, B. V. Shneider, T. Yu. Alekseeva |
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| Rok vydání: | 2014 |
| Předmět: |
inorganic chemicals
Fusion Chemistry General Chemical Engineering Metals and Alloys Analytical chemistry chemistry.chemical_element Potassium pyrosulfate Decomposition Autoclave Inorganic Chemistry chemistry.chemical_compound Scientific method Materials Chemistry Gravimetric analysis Dissolution Nuclear chemistry Palladium |
| Zdroj: | Inorganic Materials. 50:1392-1396 |
| ISSN: | 1608-3172 0020-1685 |
| DOI: | 10.1134/s002016851414012x |
| Popis: | Various techniques for decomposition of process concentrates with a high content of palladium, such as fusion with potassium pyrosulfate and dissolution in autoclaves, with the purpose of the following gravimetric determination of palladium are described. It is shown that the optimal method for transferring the sample into the solution is its dissolution in a mixture of HCl and HNO3 (3: 1) using analytical autoclaves. The conditions of the autoclave dissolution (the composition of the acid mixture, the temperature, and the dissolution time) are determined. The relative standard deviation of the analysis results is 0.3% for a content of palladium of 60–80%. |
| Databáze: | OpenAIRE |
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