A study on the effect of temperature on morphology of precipitate dolomite

Abstract

The main objective of this project is to study the effect of temperature on morphology of precipitate calcium magnesium carbonate. This examine involves the utility of different temperature for carbonation process as a way to examine the morphology and distribution of particle below precise temperature. The effect of temperature turned into recognized via evaluating morphology of particles in three different range of temperature which representing media of low temperature, moderate temperature and high temperature. Moreover, the effect of mineral composition and morphology of dolomite in the course of precipitation method were characterized by means of scanning electron microscope (SEM) and X-ray diffraction (XRD) analyses The phase of the polymorphs formed while dolomite precipitate at lower temperature with stirring rate of 1200-1400 rpm. It is provides a temperature and carbonate alkalinity are mainly key physicochemical parameters to form dolomite precipitation. Improved temperature in extra of a 100°C are required to precipitate a well ordered dolomite. At regular temperature of 25°C, the includes of calcium is high even as magnesium contains is very low. This research became also carried out to analyze the impact of calcination conditions consisting of temperature, holding time and heating rate on the calcined dolomite. Reactivity of dolime (CaOMgO) refers back to the extent and the rate of hydration there of to calcium hydroxide (Ca(OH)2) and magnesium hydroxide (Mg(OH)2) using water as hydrating agents. The outcomes show that calcination temperature and holding time affects directly to the reactivity of dolime (CaOMgO).