Evaluation and improvement of X-ray emission analysis for the recovery values of baryte waste

Abstract

In X-ray fluorescence analysis the empirical method is found to produce precise results but there is often uncertainty regarding accuracy. This has been found most in the quantitative analysis of barytes and its wastes. To obtain accurate and reproducible results the samples should be dissolved and evaporated to get subsequently resolidified samples or fused into glass beads by mixing the samples with Na2B4O7 for the X-ray fluorescence analysis. But all these techniques are time consuming processes. In the present study the usual double briquetting technique was used with correction constants both for enhancement and absorption effects. This gives reproducible analysis of BaSO4, SiO2 and Fe2O) with the acceptable limits of accuracy. V-V visible emission spectroscopy was used to semi-quantitively, ascertain the presence of elements in the sample. It has been observed that the results have been significantly improved after using the interelemental correction factors for BaSO4. Si02 and Fe2O3) in baryte wastes.