ASTM International - ASTM UOP823-90
Platinum in Fresh Platinum-Rhenium Catalysts by Spectrophotometry
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| Organization: | ASTM International |
| Publication Date: | 29 July 2002 |
| Status: | inactive |
| Page Count: | 11 |
scope:
This method is for determining platinum in fresh gamma-alumina catalysts containing rhenium but not molybdenum. Elements that produce colored ions in the color-development step, such as rhenium, constitute a positive interference, however, compensation for these interfering elements is made with an isoamyl acetate extraction. Concentrations of silica up to approximately 150 ppm do not interfere.
Document History
ASTM UOP823-90
July 29, 2002
Platinum in Fresh Platinum-Rhenium Catalysts by Spectrophotometry
This method is for determining platinum in fresh gamma-alumina catalysts containing rhenium but not molybdenum. Elements that produce colored ions in the color-development step, such as rhenium,...