Beneficiation and Characterization of Gold from Itagunmodi Gold Ore by Cyanidation  

作　　者：Olasupo Daniel Ogundare Mosobalaje Oyebanji Adeoye Adelana Rasaq Adetunji Olusegun Oyeleke Adewoye 

机构地区：[1]Engineering Materials Development Institute, Akure, Nigeria [2]Department of Materials Science and Engineering, Obafemi Awolowo University, Ile-Ife, Nigeria [3]Prototype Engineering Development Institute, Ilesa, Nigeria [4]African University of Science and Technology, Abuja, Nigeria

出　　处：《Journal of Minerals and Materials Characterization and Engineering》2014年第4期300-307,共8页矿物质和材料特性和工程（英文）

摘　　要：This paper has reported the beneficiation and characterization of gold from Itagunmodi gold ore in Atakumosa West LGA in the State of Osun Nigeria using cyanide solution obtained from cassava and commercially available sodium cyanide analar grade. Cyanide solution extracted from cassava variety TMS 30572 leaves obtained from Obafemi Awolowo University (O.A.U) Research and Teaching Farm was discovered to have the highest free cyanide (CN-) among the ten different cassava varieties evaluated. The samples were exposed to varied concentrations from 0.25% to 2.00% CN at intervals of 0.25% CN from cyanide solution obtained from cassava and commercially available sodium cyanide analar grade. The result showed that after 24 hours of cyanidation and concentration of 2% CN- on 10 g gold ore concentrate, the analar grade sodium cyanide yielded 0.123 g of gold while the cassava based cyanide yielded 0.098 g. The cyanidation performance of analar grade sodium cyanide is greater than cassava based cyanide by a difference of 0.25%.This paper has reported the beneficiation and characterization of gold from Itagunmodi gold ore in Atakumosa West LGA in the State of Osun Nigeria using cyanide solution obtained from cassava and commercially available sodium cyanide analar grade. Cyanide solution extracted from cassava variety TMS 30572 leaves obtained from Obafemi Awolowo University (O.A.U) Research and Teaching Farm was discovered to have the highest free cyanide (CN-) among the ten different cassava varieties evaluated. The samples were exposed to varied concentrations from 0.25% to 2.00% CN at intervals of 0.25% CN from cyanide solution obtained from cassava and commercially available sodium cyanide analar grade. The result showed that after 24 hours of cyanidation and concentration of 2% CN- on 10 g gold ore concentrate, the analar grade sodium cyanide yielded 0.123 g of gold while the cassava based cyanide yielded 0.098 g. The cyanidation performance of analar grade sodium cyanide is greater than cassava based cyanide by a difference of 0.25%.

关 键 词：GOLD CYANIDATION Itagunmodi GOLD ORE CASSAVA Commercial Sodium CYANIDE CYANIDE from CASSAVA 

分 类 号：R73[医药卫生—肿瘤]