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ASTM International - ASTM UOP715-85

Rhenium Catalysts by Spectrophotometry

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Organization: ASTM International
Publication Date: 29 July 2002
Status: inactive
Page Count: 7
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.

Document History

ASTM UOP715-85
July 29, 2002
Rhenium Catalysts by Spectrophotometry
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...
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