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Journal ArticleDOI

Application of Instrumentation for Materials Analysis in Refractory Industry

Subrata Banerjee
- 01 Jan 1983 - 
- Vol. 42, Iss: 1, pp 20-28
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TLDR
In this article, the use of GC, GC/MS and HPLC are also becoming common to characterize health and safety related problems in thermal applications, and the standard deviation and coeficient of determinations are mentioned.
Abstract
Methods have been developed for analysis of alumino-silicate and magnesia-chrome materials by X-ray fluorescence by fusing the materials into a glass disc and then analyzing the components by irradiating with X-rays. Lithium tetraborate has been used for alumino-silicates, and sodium hexametaphosphate along with lithium metaborate has been used for chrome-magnesia materials. Addition of La2O3 as a heavy absorber has been eliminated in both cases by using programmes for inter-elemental corrections by the computer. Calibration lines made from available standards have been made and their standard deviation and coeficient of determinations are mentioned. To cope with the changes in refractory technology, thermal analysis equipment have been used to solve problems related to change in thermal applications. DTA and TGA have been used extensively and some specific applications have been mentioned. The use of GC, GC/MS and HPLC are also becoming common to characterize health and safety related problems.

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Journal ArticleDOI

Rapid Analysis of Chrome Ores, Chrome-Magnesia, and Magnesia-Chrome Materials by X-ray Fluorescence

TL;DR: In this article, a rapid x-ray fluorescence method has been developed for analysis of chrome ores, chrome-magnesia, and magnesia-chrome materials by fusion of the powdered samples with sodium hexametaphosphate and lanthanum oxide.
Journal ArticleDOI

An improved method of x‐ray fluorescence analysis of chrome containing refractories

TL;DR: An improved x-ray fluorescence method has been developed for the analysis of chrome containing refractory materials (raw materials, in process and final products). It involves the fusion of the powdered samples with a mixture of sodium hexametaphosphate and lithium metaborate in the presence of lanthanum oxide into a glass disc followed by polishing of the disc before exposure to the x-rays as mentioned in this paper.