Processing;
Department,;
Faculty;
of;
Engineering,;
Tarbiat;
Modares;
University,;
Tehran,Iran;
Processing;
Department,;
Faculty;
of;
Engineering,;
Tehran;
University,;
Tehran,;
Iran;
of;
Engoneering,;
University;
of;
Kwazulu-Natal,;
Durban,;
South;
Africa;
难处理金矿石; 浮选方法; 氰化方法; 低品位; 预氧化; 金回收率; 生物氧化技术; 氧化预处理;