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Title: Optimization and Characterization of Magnesium Chloride Production from Magnesium Carbonate using HCl
???metadata.dc.contributor.*???: Belay Woldeyes (PhD)
Ketema, Beyecha
Keywords: Magnesium Chloride Production;Magnesium Carbonate;HCl;Optimization
Issue Date: Jun-2016
Publisher: AAU
Abstract: The objective of the study was, Optimization and Characterization of Magnesium Chloride Production from locally available Magnesium Carbonate using HCl. The reaction of magnesite in aqueous hydrochloric acid solution was studied in a batch reactor. Complexometric method was used for chemical analysis using EDTA. According to result obtained magnesite has composition of: 46.77% MgO, 0.78% SiO2, 3.03% CaO, 0% Fe2O3, 0.2% Al2O3, 49.12%L.O.I and the maximum amount of MgCO3 that could possibly be present in the sample is 94.4%. The experimental design was done by using the Design Expert 7.0.0 software three levels; three factor general factorial design with full type in the study. The experimental parameters were, acid concentration, liquid to solid ratio and reaction time. The results showed that optimum parameters were: 180 min reaction time, 7M acid concentration and 2.07ml/g liquid-to-solid ratio. Under these optimum conditions, the maximum magnesium chloride yield was 94%w/w. In contrast, the minimum magnesium chloride yield was 58% w/w at 4M acid concentration, 1.88 ml/g liquid to solid ratio and 60 min reaction time.
Appears in Collections:Thesis - Process Engineering

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