%0 Journal Article
	%A Emine Teke and  Soner Kuşlu and  Sabri Çolak and  Turan Çalban
	%D 2016
	%J International Journal of Chemical and Molecular Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 116, 2016
	%T Dissolution Leaching Kinetics of Ulexite in Sodium Dihydrogen Phosphate Solutions
	%U https://publications.waset.org/pdf/10005110
	%V 116
	%X The aim of the present study was to investigate the dissolution kinetics of ulexite in sodium dihydrogen phosphate in a mechanical agitation system and also to declare an alternative reactant to produce the boric acid. Reaction temperature, concentration of sodium dihydrogen phosphate, stirring speed, solid-liquid ratio, and ulexite particle size were selected as parameters. The experimental results were successfully correlated by using linear regression and a statistical program. Dissolution curves were evaluated in order to test the shrinking core models for solid-fluid systems. It was observed that increase in the reaction temperature and decrease in the solid/liquid ratio causes an increase in the dissolution rate of ulexite. The activation energy was found to be 36.4 kJ/mol. The leaching of ulexite was controlled by diffusion through the ash (or product) layer.
	%P 1006 - 1010