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ASTM UOP 954 : 2011

Current
Current

The latest, up-to-date edition.

Loss on Ignition (LOI) for Fresh, Regenerated, Used, and Spent Catalysts, Catalyst Supports, and Adsorbents
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

04-19-2011

Publisher

American Society for Testing and Materials

Describes the loss on ignition (LOI) in air, using a specified ignition temperature and time, for fresh, regenerated, used, and spent catalysts, catalyst supports, and molecular sieves of various shapes and sizes.

This method is for determining the loss on ignition (LOI) in air, using a specified ignition temperature and time, for fresh, regenerated, used, and spent catalysts, catalyst supports, and molecular sieves of various shapes and sizes, including fines. This method is quantitative down to 0.1 mass-%. The method is not water specific; any components that volatilize at the selected ignition temperature, for example, carbon, chlorine, and fluorine, are also included in the LOI value. Some components, for example sulfates, may volatilize fully or partially depending on ignition time and temperature. Mass gains are possible with catalysts that contain reduced metals.

The criteria for selecting the temperature for the LOI are based on the volatility of components of materials. Examples are listed in procedure. Length of time at temperature is dependent on the application of the LOI values. For example, it is important to drive off defined volatiles, such as halogens, for the determination of platinum concentration.

DevelopmentNote
Supersedes ASTM UOP 275. (11/2016)
DocumentType
Standard
Pages
8
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

ASTM UOP 912 : 2006 Fluoride in Catalysts, Molecular Sieves, and Aqueous Solutions by Ion Selective Electrode
ASTM UOP 291 : 2015 Total Chloride in Alumina and Silica-Alumina Catalysts by Microwave Digestion and Potentiometric Titration
ASTM UOP 979 : 2014 Total Chloride in Alumina Supported Catalysts by WD-XRF
ASTM UOP303 : 2007 Impurities in Catalysts by ICP-OES
ASTM UOP 925 : 1992 Nickel, Molybdenum, Phosphorus, Cobalt and Aluminum in Fresh Catalysts by ICP-AES
ASTM UOP 714 : 2007 Metals in Miscellaneous Samples by ICP-OES
ASTM UOP 766 : 2013 Piece Density by Mercury Displacement
ASTM U 04 : 2013 Platinum in Fresh Catalysts by Spectrophotometry
ASTM UOP 961 : 2012 Elemental Composition of Zeolites by ICP-OES
ASTM UOP 410 : 2014 Sodium in Catalysts by AAS

ASTM UOP 918 : 2012 Collection and Grinding of Adsorbents and Catalysts for Analysis
ASTM U 09 : 2013 Precision Statements in UOP Methods

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Hardcopy - English
PDF - English
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