{"title":"溶剂萃取净化粉煤灰浸出液:用实验设计确定影响因素","authors":"M.J. Rushwaya , S. Ndlovu","doi":"10.1016/j.minpro.2017.05.004","DOIUrl":null,"url":null,"abstract":"<div><p><span>The solvent extraction<span> of iron and titanium from coal fly ash leach solution was investigated by the use of Design of Experiments. The effect of the factors: hydrogen ion concentration, Primene JMT concentration, aqueous to organic volume phase ratio and temperature on iron and titanium extraction were evaluated. A two level factorial design implemented by statistical software Design Expert</span></span><strong><span>®</span></strong> 6, determined the significant factors and any associated interactive effects amongst these factors.</p><p>Hydrogen ion concentration and the interaction between the aqueous to organic volume phase ratio with Primene JMT concentration had a significant effect on the extraction of iron while temperature did not. Hydrogen ion concentration and temperature did not have a significant effect on the extraction of titanium, while the interaction between Primene JMT concentration and the aqueous to organic volume phase ratio had a significant effect.</p><p>The maximum iron extraction achieved in the implemented design was 33.8% while 99% of titanium could be extracted from the coal fly ash leach solution. Extraction improvement tests showed that at a hydrogen ion concentration of 0.28<!--> <!-->M, 88% iron and 99% titanium extraction from coal-fly ash leach solution could be achieved.</p></div>","PeriodicalId":14022,"journal":{"name":"International Journal of Mineral Processing","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2017-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.minpro.2017.05.004","citationCount":"7","resultStr":"{\"title\":\"Purification of coal fly ash leach liquor by solvent extraction: Identification of influential factors using Design of Experiments\",\"authors\":\"M.J. Rushwaya , S. Ndlovu\",\"doi\":\"10.1016/j.minpro.2017.05.004\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p><span>The solvent extraction<span> of iron and titanium from coal fly ash leach solution was investigated by the use of Design of Experiments. The effect of the factors: hydrogen ion concentration, Primene JMT concentration, aqueous to organic volume phase ratio and temperature on iron and titanium extraction were evaluated. A two level factorial design implemented by statistical software Design Expert</span></span><strong><span>®</span></strong> 6, determined the significant factors and any associated interactive effects amongst these factors.</p><p>Hydrogen ion concentration and the interaction between the aqueous to organic volume phase ratio with Primene JMT concentration had a significant effect on the extraction of iron while temperature did not. Hydrogen ion concentration and temperature did not have a significant effect on the extraction of titanium, while the interaction between Primene JMT concentration and the aqueous to organic volume phase ratio had a significant effect.</p><p>The maximum iron extraction achieved in the implemented design was 33.8% while 99% of titanium could be extracted from the coal fly ash leach solution. Extraction improvement tests showed that at a hydrogen ion concentration of 0.28<!--> <!-->M, 88% iron and 99% titanium extraction from coal-fly ash leach solution could be achieved.</p></div>\",\"PeriodicalId\":14022,\"journal\":{\"name\":\"International Journal of Mineral Processing\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2017-07-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/j.minpro.2017.05.004\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Mineral Processing\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0301751617300947\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"Earth and Planetary Sciences\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Mineral Processing","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0301751617300947","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Earth and Planetary Sciences","Score":null,"Total":0}
Purification of coal fly ash leach liquor by solvent extraction: Identification of influential factors using Design of Experiments
The solvent extraction of iron and titanium from coal fly ash leach solution was investigated by the use of Design of Experiments. The effect of the factors: hydrogen ion concentration, Primene JMT concentration, aqueous to organic volume phase ratio and temperature on iron and titanium extraction were evaluated. A two level factorial design implemented by statistical software Design Expert® 6, determined the significant factors and any associated interactive effects amongst these factors.
Hydrogen ion concentration and the interaction between the aqueous to organic volume phase ratio with Primene JMT concentration had a significant effect on the extraction of iron while temperature did not. Hydrogen ion concentration and temperature did not have a significant effect on the extraction of titanium, while the interaction between Primene JMT concentration and the aqueous to organic volume phase ratio had a significant effect.
The maximum iron extraction achieved in the implemented design was 33.8% while 99% of titanium could be extracted from the coal fly ash leach solution. Extraction improvement tests showed that at a hydrogen ion concentration of 0.28 M, 88% iron and 99% titanium extraction from coal-fly ash leach solution could be achieved.
期刊介绍：
International Journal of Mineral Processing has been discontinued as of the end of 2017, due to the merger with Minerals Engineering.
The International Journal of Mineral Processing covers aspects of the processing of mineral resources such as: Metallic and non-metallic ores, coals, and secondary resources. Topics dealt with include: Geometallurgy, comminution, sizing, classification (in air and water), gravity concentration, flotation, electric and magnetic separation, thickening, filtering, drying, and (bio)hydrometallurgy (when applied to low-grade raw materials), control and automation, waste treatment and disposal. In addition to research papers, the journal publishes review articles, technical notes, and letters to the editor..
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
