?EXTRACTION OF ALUMINA FROM NEPHELLINE SYENITE BY SINTERING WITH LIMESTONE

Authors

  • MUMTAZ KHAN PCSIR Laboratories, P.O. Peshawar University, Peshawar, Pakistan
  • M. RIAZ PCSIR Laboratories, P.O. Peshawar University, Peshawar, Pakistan
  • KAMIN KHAN PCSIR Laboratories, P.O. Peshawar University, Peshawar, Pakistan

Keywords:

Extraction, Alumina, Nepheline syenite, Sintering with lime stone.

Abstract

Nepheline Syenite of Koga (Lower Swat area) Pakistan was sintered at 125°C with suitable quantity of lime-
stone followed by water leaching for the formation of alkali abuminates which are further processed for the extrac-
tion of alumina. Parameters such as particle size variation, ratio of nepheline syenite and limestone, time tempera-
ture of sintering and sodium hydroxide concentration were optimized to obtain maximum recovery of alumina. The
extraction of alumina on the basis of alumina in Nepheline synite has been found to be about 70%. Such a process
may be of vital importance to countries without ready access to supplies of alumina in the form of bauxite.

Published

1996-02-19

How to Cite

KHAN, M., RIAZ, M., & KHAN, K. (1996). ?EXTRACTION OF ALUMINA FROM NEPHELLINE SYENITE BY SINTERING WITH LIMESTONE. Biological Sciences - PJSIR, 39(1-4), 25–27. Retrieved from https://v2.pjsir.org/index.php/biological-sciences/article/view/2360

Issue

Vol. 39 No. 1-4 (1996): Pakistan Journal of Scientific and Industrial Research

Section

Articles