THERMO GRAVIMETRIC AND INFRARED SPECTRAL STUDIES FOR RAPID EVALUATION OF ROCK PHOSPHATES

Authors

  • MAHMOOD A. KHWAJA PCSIR Laboratories, Peshawar - 25120, Pakistan
  • ISMAT G. KHATTAK PCSIR Laboratories, Peshawar - 25120, Pakistan

Keywords:

Phosphates, Infrared, Thermogravimetry.

Abstract

Thermal, infrared spectral and chemical analyses have been carried out on fourteen rock phosphate samples from
five deposits in Hazara, North West Frontier Province (NWFP), Pakistan. Samples with high phosphate content have
shown less than 3% loss in weight on ignition and a set of two characteristic medium intensity absorption bands in the
range 1460-1420cm'. On the other hand ores samples with low phosphate content have shown high loss in weight on
ignition and only one absorption band around 1460-1420cm' in their infrared spectra. The analytical data described
and discussed in this paper suggests that TGA/DTA and infrared spectral techniques may be used as a rapid means for
the preliminary selection of ore-grades, in place of conventional techniques.

Published

2022-06-09

How to Cite

KHWAJA , M. A. ., & KHATTAK , . . . I. G. (2022). THERMO GRAVIMETRIC AND INFRARED SPECTRAL STUDIES FOR RAPID EVALUATION OF ROCK PHOSPHATES. Biological Sciences - PJSIR, 37(9), 365–370. Retrieved from https://v2.pjsir.org/index.php/biological-sciences/article/view/2716

Issue

Vol. 37 No. 9 (1994): Pakistan Journal of Scientific and Industrial Research

Section

Articles