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UOP 274-94
Platinum in Fresh Catalysts by Spectrophotometry
STANDARD published on 26.7.2002
The information about the standard:
Designation standards: UOP 274-94
Note: WITHDRAWN
Publication date standards: 26.7.2002
SKU: NS-574709
The number of pages: 19
Approximate weight : 57 g (0.13 lbs)
Country: American technical standard
Category: Technical standards UOP
Preview of the standard UOP 274-94
| 1. Scope |
|
This method is for determining platinum in fresh gamma-alumina, theta-alumina or silica/gamma-alumina catalysts at concentrations from approximately 0.05 to 1.0 mass-% by spectrophotometry. Catalysts containing rhenium cannot be analyzed by this method, see UOP Method 823. Any other elements that produce colored ions in the dissolution or color-development steps constitute a positive interference. These include chromium, rhodium, cobalt and molybdenum, but other elements can also interfere. When such elements are present, determine platinum by UOP Method 896. |
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