XRF analysis of corundum

Key data on corundum, fused alumina, corundum bricks

Composition: High alumina types of bricks with >90% Al₂O₃, with addition of Cr₂O₃ additive as corundum-chromiumoxide brick. Production by means of reduced cast in an electric arc furnace.
Raw materials: Calcined, high alumina bauxites
Application: Furnaces for the petrochemical and chemical industry, in carbon black reactors, glass kilns, incineration plants, blast furnaces.

Analytical techniques for the analysis of corundum by XRF

Wide range of measurement programmes for the XRF-analysis of corundum from fused beads or pressed powders
Screening analysis forup to 71 elements
Additional tests
Determination of bulk density and porosity
Carbon analysis of different modifications like TOC, TIC, TC
X-ray microanalysis, EDX to identify inclusions and impurities

Quantitative XRF analysis from a fused bead

Quantitative analysis of a fused bead for 12, 16, 20 or 40 elements according to DIN ISO 12677:2012, DIN EN 15309:2007

For the analysis of oxide and oxidizable samples composed of a wide range of different materials such as, for instance, glass and glass fibres, soils, rock, mineral raw materials, ceramic or mineral-bonded construction materials etc.

This process involves adding a flux, lithium tetra borate, to the sample material, followed by fusing in an oxidizing atmosphere after which the sample is rapidly cooled down to form a homogenous fused bead, which is then analysed with utmost precision.

! Please note !

In order to guarantee standard conformity of analysis the sample material must be ground to a grainsize < 63 µm, dried at 105°C and we need the value for the loss on ignition, LOI, as a kind of pre-preparation of the sample..

Consequently and if obligatory we carry out the sample preparation as mentioned obove - grinding, drying, determination of LOI - even though you have not explicitely ordered it.

Screening analysis for 71 oxides/elements

The fundamental parameter programme Omnian provides a matrix-independent, quantitative, semi-quantitative or qualitative XRF analysis of unknown samples with a variety of material properties and different organic and inorganic compositions.

Samples can be analyzed either after preparation or without preparation and non-destructively in case of a suitable composition, i.e. X-ray and vacuum stable and depending on their surface condition.This enables us to determine element concentrations between the minimum detection limit, usually 250 µg/g and 100%.

! Please note !

In order to guarantee standard conformity of analysis the sample material must be ground to a grainsize < 63 µm, dried at 105°C and we need the value for the loss on ignition, LOI, as a kind of pre-preparation of the sample..

Consequently and if obligatory we carry out the sample preparation as mentioned obove - grinding, drying, determination of LOI - even though you have not explicitely ordered it.

Standards and guidelines for XRF-analysis of corundum

ISO 29581-2:2010-03 - Cement - Test methods - Part 2: Chemical analysis by X-ray fluorescence
DIN EN ISO 12677:2013-02 - Chemical analysis of refractory products by X-ray fluorescence (XRF) - Fused cast-bead method
DIN EN ISO 21068-1:2008-12 - Chemical analysis of silicon-carbide-containing raw materials and refractory products - Part 1: General information and sample preparation
DIN EN ISO 21068-2:2008-12 -Chemical analysis of silicon-carbide-containing raw materials and refractory products - Part 2: Determination of loss on ignition, total carbon, free carbon and silicon carbide, total and free silica and total and free silicon
DIN EN ISO 26845:2008-06 - Chemical analysis of refractories - General requirements for wet chemical analysis, atomic absorption spectrometry (AAS) and inductively coupled plasma atomic emission spectrometry (ICP-AES) methods
DIN EN 196-2:2013-10 - Method of testing cement - Part 2: Chemical analysis of cement
DIN EN 15309:2007-08 - Characterization of waste and soil - Determination of elemental composition by X-ray fluorescence
DIN EN 62321-3-1:2014-10 - Determination of certain substances in electrotechnical products - Part 3-1: Screening - Lead, mercury, cadmium, total chromium and total bromine by X-ray fluorescence spectrometry
DIN 51001:2003-08 - Testing of oxidic raw materials and basic materials - General bases of work for X-ray fluorescence method (XRF)
DIN 51001 Beiblatt 1:2010-05 - Testing of oxidic raw materials and basic materials - General bases of work for X-Ray fluorescence method (XRF) - General survey on disintegration methods referred to groups of materials for the determination of test specimens for XRF
DIN 51081:2002-12 - Testing of oxidic raw materials and materials - Determination of change in mass on ignition
DIN 51418-1:2008-08 - X-ray spectrometry - X-ray emission- and X-ray fluorescence analysis (XRF) - Part 1: Definitions and basic principles
DIN 51418-2:2015-03 - X-ray spectrometry - X-ray emission and X-ray fluorescence analysis (XRF) - Part 2: Definitions and basic principles for measurements, calibration and evaluation of results
DIN 51719:1997-07 - Testing of solid fuels - Solid mineral fuels - Determination of ash content
DIN 51729-10:2011-04 - Testing of solid fuels - Determination of chemical composition of fuel ash - Part 10: X-Ray Fluorescence Analysis