{"title":"A Taguchi Optimization Study about The Dissolution of Colemanite in Ammonium Bisulfate (NH4HSO4) Solution","authors":"Havva Mumcu Şimşek, R. Guliyev","doi":"10.30492/IJCCE.2021.530973.4757","DOIUrl":null,"url":null,"abstract":"In this study, the optimum conditions of the dissolution of colemanite (2CaO.3B2O3.5H2O) ore in ammonium bisulfate (NH4HSO4) solution were examined by using Taguchi fractional design methods, and an alternative reactant for boric acid extraction process from colemanite ore was specified. The studied parameters and optimum conditions for the dissolution process were in the following; reaction temperature: 50˚C, solid/liquid ratio: 0.1 g/mL, particle size: -80 mesh, mixing speed: 600 rpm and reaction time: 25 minutes. Particle size, mixing speed and reaction time had the most significant effect on dissolution, when compared to the others. Accordingly, the dissolution efficiency of colemanite was found to be 99.54% under optimum conditions, and using NH4HSO4 as a solvent enabled the selective separation of boron from the colemanite ore. The ammonium sulphate formed as a by-product was converted into NH4HSO4 by the addition of appropriate stoichiometric amount of sulfuric acid and fed back into the dissolution vessel.","PeriodicalId":14572,"journal":{"name":"Iranian Journal of Chemistry & Chemical Engineering-international English Edition","volume":"45 1","pages":""},"PeriodicalIF":1.0000,"publicationDate":"2021-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Iranian Journal of Chemistry & Chemical Engineering-international English Edition","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.30492/IJCCE.2021.530973.4757","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
In this study, the optimum conditions of the dissolution of colemanite (2CaO.3B2O3.5H2O) ore in ammonium bisulfate (NH4HSO4) solution were examined by using Taguchi fractional design methods, and an alternative reactant for boric acid extraction process from colemanite ore was specified. The studied parameters and optimum conditions for the dissolution process were in the following; reaction temperature: 50˚C, solid/liquid ratio: 0.1 g/mL, particle size: -80 mesh, mixing speed: 600 rpm and reaction time: 25 minutes. Particle size, mixing speed and reaction time had the most significant effect on dissolution, when compared to the others. Accordingly, the dissolution efficiency of colemanite was found to be 99.54% under optimum conditions, and using NH4HSO4 as a solvent enabled the selective separation of boron from the colemanite ore. The ammonium sulphate formed as a by-product was converted into NH4HSO4 by the addition of appropriate stoichiometric amount of sulfuric acid and fed back into the dissolution vessel.
期刊介绍:
The aim of the Iranian Journal of Chemistry and Chemical Engineering is to foster the growth of educational, scientific and Industrial Research activities among chemists and chemical engineers and to provide a medium for mutual communication and relations between Iranian academia and the industry on the one hand, and the world the scientific community on the other.