{"title":"PRODUCING CALCIUM NITRATE AND RARE-EARTH ELEMENT CONCENTRATES BY PHOSPHOGYPSUM CONVERSION","authors":"S. V. Vlasjan, N. D. Voloshin, A. Shestozub","doi":"10.5755/j01.ct.64.2.6024","DOIUrl":null,"url":null,"abstract":"Experimental researches of the dissolution of c alcium carbonate obtained as a result of phosphogypsum conversion by ammonium or sodium carbonate and nitric acid with obtaining a concentrate of rare-earth elements and other liquid products have been performed. The structure of phosphochalk and the outlet half-product is presented. The substantiation of recycling expediency of phosphogypsum waste – phosphoric acid and phosphoric fertilizers has been carried out. DOI: http://dx.doi.org/10.5755/j01.ct.64.2.6024","PeriodicalId":22505,"journal":{"name":"the Chemical Technology","volume":"33 1","pages":"58-62"},"PeriodicalIF":0.0000,"publicationDate":"2014-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"the Chemical Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5755/j01.ct.64.2.6024","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 7
Abstract
Experimental researches of the dissolution of c alcium carbonate obtained as a result of phosphogypsum conversion by ammonium or sodium carbonate and nitric acid with obtaining a concentrate of rare-earth elements and other liquid products have been performed. The structure of phosphochalk and the outlet half-product is presented. The substantiation of recycling expediency of phosphogypsum waste – phosphoric acid and phosphoric fertilizers has been carried out. DOI: http://dx.doi.org/10.5755/j01.ct.64.2.6024
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