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UOP 715-85
Rhenium Catalysts by Spectrophotometry
STANDARD published on 29.7.2002
The information about the standard:
Designation standards: UOP 715-85
Note: WITHDRAWN
Publication date standards: 29.7.2002
SKU: NS-574873
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: American technical standard
Category: Technical standards UOP
Preview of the standard UOP 715-85
| 1. Scope |
|
This method is for determining rhenium in fresh and used platinum-containing catalysts in the range of 0.05 to 0.75%. Elements that produce colored ions in the dissolution or color-development step constitute a positive interference. Iron or copper in moderate concentrations are reduced by stannous ion to a colorless state and, therefore, do not interfere. Molybdenum which forms a red coloration with the stannous ion is the major interference. Directions for the separation of rhenium from molybdenum are given. Analysis for molybdenum is by UOP Method 833. |
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