{"title":"EXTRACTION OF NICKEL FROM A MIXED NICKEL-COBALT HYDROXIDE PRECIPITATE","authors":"Sait Kurşunoğlu","doi":"10.30797/MADENCILIK.537644","DOIUrl":null,"url":null,"abstract":"The extraction of nickel from a mixed nickel-cobalt hydroxide precipitate (MHP) was conceived and experimentally explored. The effect of sulphuric acid concentration, leaching time, leaching temperature and stirring speed on nickel extraction was investigated. After 60 min leaching time, more than 90% of nickel and approximately 80% of cobalt were taken into the leach solution under the following conditions: 0.75M sulphuric acid concentration, 30°C leaching temperature and 400 rpm stirring speed. pH of the leach slurry was determined as 1.23 under the conditions explored. It was observed that there is no beneficial effect of leaching temperature and stirring speed on the extraction of nickel from the MHP sample. The XRD pattern of the fresh MHP sample revealed the data and peak of the sample widening which is indicative of amorphous solid structure.","PeriodicalId":37481,"journal":{"name":"Scientific Mining Journal","volume":" ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Scientific Mining Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.30797/MADENCILIK.537644","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: 3
Abstract
The extraction of nickel from a mixed nickel-cobalt hydroxide precipitate (MHP) was conceived and experimentally explored. The effect of sulphuric acid concentration, leaching time, leaching temperature and stirring speed on nickel extraction was investigated. After 60 min leaching time, more than 90% of nickel and approximately 80% of cobalt were taken into the leach solution under the following conditions: 0.75M sulphuric acid concentration, 30°C leaching temperature and 400 rpm stirring speed. pH of the leach slurry was determined as 1.23 under the conditions explored. It was observed that there is no beneficial effect of leaching temperature and stirring speed on the extraction of nickel from the MHP sample. The XRD pattern of the fresh MHP sample revealed the data and peak of the sample widening which is indicative of amorphous solid structure.
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.
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