{"title":"COMBINED EFFECT OF PYROMETALLURGICAL AND HYDROMETALLURGICAL PROCESSES ON QUARTZ ORE PURIFICATION","authors":"A. Bas","doi":"10.30797/MADENCILIK.868572","DOIUrl":null,"url":null,"abstract":"Yuksek teknoloji uygulamalarindaki guncel gelismeler, yuksek saflikta kuvars gibi silikatlara olan artan talebi gozler onune sermistir. Bu nedenle, bu calismanin konusu pirometalurjik ve devaminda hidrometalurjik uygulamalarla kuvars cevherinin saflastirilmasi olarak belirlenmistir. Bu calismada, konsantre Fe tenoru ile renk degerleri arasindaki iliskiyi daha iyi anlamak icin kuvarsin termal islem ve ardindan oksalik asit (OA) ile agartilmasi arastirilmistir. Termal islem sicakliginin kuvarsin OA ile agartilmasi uzerinde onemli bir etkiye sahip oldugu bulunmustur. Hem termal islem gormemis hem de 250°C'ye kadar sicakliklarda termal islem gormus kuvarstan en yuksek oranda Fe uzaklastirildigi gozlenmistir. 400°C - 900°C arasi sicakliklarda gerceklestirilen termal islem sonucu en basarisiz saflastirma performanslari gozlenmistir: L* degeri dusmus, a* ve b* degerleri artmistir. Termal islem sicakliginin 1100°C’ye artirilmasi sonucu agartma basarisiz olmus: en dusuk oranda Fe uzaklastirilirken, buna karsin en yuksek L* degeri ve en dusuk a* ve b* degerlerini saglayan en basarili renk degerlerine ulasilmistir. Bu bulgu cozunmeye direncli demir silikatlarin olusumu ile aciklanmistir. Ayrica kuvars cevherinden okzalik asit lici ile demir uzaklastirma orani ve renk degerlerinde gozlenen farkliliklar; termal islem sonucu kristalin yapidaki degisiklikler ve mikro catlaklarin olusumu ile aciklanmistir.","PeriodicalId":37481,"journal":{"name":"Scientific Mining Journal","volume":" ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Scientific Mining Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.30797/MADENCILIK.868572","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Engineering","Score":null,"Total":0}
引用次数: 0
Abstract
Yuksek teknoloji uygulamalarindaki guncel gelismeler, yuksek saflikta kuvars gibi silikatlara olan artan talebi gozler onune sermistir. Bu nedenle, bu calismanin konusu pirometalurjik ve devaminda hidrometalurjik uygulamalarla kuvars cevherinin saflastirilmasi olarak belirlenmistir. Bu calismada, konsantre Fe tenoru ile renk degerleri arasindaki iliskiyi daha iyi anlamak icin kuvarsin termal islem ve ardindan oksalik asit (OA) ile agartilmasi arastirilmistir. Termal islem sicakliginin kuvarsin OA ile agartilmasi uzerinde onemli bir etkiye sahip oldugu bulunmustur. Hem termal islem gormemis hem de 250°C'ye kadar sicakliklarda termal islem gormus kuvarstan en yuksek oranda Fe uzaklastirildigi gozlenmistir. 400°C - 900°C arasi sicakliklarda gerceklestirilen termal islem sonucu en basarisiz saflastirma performanslari gozlenmistir: L* degeri dusmus, a* ve b* degerleri artmistir. Termal islem sicakliginin 1100°C’ye artirilmasi sonucu agartma basarisiz olmus: en dusuk oranda Fe uzaklastirilirken, buna karsin en yuksek L* degeri ve en dusuk a* ve b* degerlerini saglayan en basarili renk degerlerine ulasilmistir. Bu bulgu cozunmeye direncli demir silikatlarin olusumu ile aciklanmistir. Ayrica kuvars cevherinden okzalik asit lici ile demir uzaklastirma orani ve renk degerlerinde gozlenen farkliliklar; termal islem sonucu kristalin yapidaki degisiklikler ve mikro catlaklarin olusumu ile aciklanmistir.
期刊介绍:
Scientific Mining Journal, which is published i n open access electronic environment and i n printed, is a periodical scientific journal of Union of Chambers of Turkish Engineers and Architects Chamber of Mining Engineers. The name of the journal was "Mining" until June 2016 and it has been changed to "Scientific Mining Journal" since September 2016 because it can be confused with popular journals with similar names and the ISSN number has been updated from 0024-9416 to 2564-7024. Scientific Mining Journal, published four times a year (March-June-September-December), aims to disseminate original scientific studies which are conducted according to the scientific norms and publication ethics at national and international scale, to scientists, mining engineers, the public; and thus to share scientific knowledge with society. The journal is in both Turkish and English. The journal covers theoretical, experimental, and applied research articles, which reflects the findings and results of an original research i n the field of mining engineering; review articles, which assess, evaluates, and interprets the findings of a comprehensive review of sufficient number of scientific articles and summarize them at present information and technology level; technical notes, which may be defined as a short article that describes a novel methodology o r technique; a case studies, which are based on the theoretical o r real professional practice and involves systematic data collection and analysis.