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Standard Practice for Sample Preparation of Fluid Catalytic Cracking Catalysts and Zeolites for Elemental Analysis by Inductively Coupled Plasma Atomic Emission Spectroscopy (Includes all amendments And changes 3/30/2016).
Automatische name übersetzung:
Standard Praxis für die Probenvorbereitung von Katalysatoren von Crack und Zeolithe zur Elementaranalyse durch induktiv gekoppelte Plasma-Atomemissionsspektroskopie
NORM herausgegeben am 1.9.2008
Bezeichnung normen: ASTM D7442-08a
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.9.2008
SKU: NS-38466
Zahl der Seiten: 3
Gewicht ca.: 9 g (0.02 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
acid decomposition, atomic spectroscopy, fusion, catalyst, fluid catalytic cracking, hydrofluoric acid, inductively-coupled plasma emission spectroscopy, perchloric acid, zeolites, Acid decomposition, Catalysts (zeolite), Fluid catalytic cracking (FCC) catalysts, Inductively-coupled plasma (ICP) spectroscopy, ICS Number Code 71.040.50 (Physicochemical methods of analysis)
Significance and Use | ||
The chemical composition of catalyst and catalyst materials is an important indicator of catalyst performance and is a valuable tool for assessing parameters in a FCCU process. This practice will be useful to catalyst manufacturers and petroleum refiners for quality verification and performance evaluation, and to environmental authorities at the state and federal levels for evaluation and verification of various compliance programs. Catalysts and catalyst type materials are difficult to prepare for analysis by ICP, and although the techniques presented in this practice are common, there is wide variation among laboratories in sample pretreatment and digestion recipes. This practice is intended to standardize these variables in order to facilitate the utility of comparative data among manufacturers, refiners, and regulatory agencies. |
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1. Scope | ||
1.1 This practice covers uniform dissolution techniques for preparing samples of fluid catalytic cracking catalysts (FCC) and exchanged zeolitic materials for analysis by Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES). These techniques describe standardized approaches to well-known, widely used laboratory practices of sample preparation utilizing acid digestions and borate salt fusions. This practice is applicable to fresh and equilibrium FCC catalysts and exchanged zeolite materials. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||
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Historisch
1.5.2011
Historisch
1.8.2008
Historisch
1.1.2014
Historisch
15.9.2013
Historisch
1.12.2009
Historisch
1.6.2010
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