| 摘要 |
FIELD: metallurgy.SUBSTANCE: first, complex ore is crushed to particles with size of 10?30 mm; carbon-bearing reducing agent is ground to particles with size of 1?3 mm, or complex ore is crushed to particles with size of 1?3 mm, and carbon-bearing reducing agent is ground to particles with size of 10?30 mm. Crushed ore is mixed with the ground carbon-bearing reducing agent; the obtained mixture is baked at the temperature equal to 0.6?0.8 of fusion temperature of the most high-melting oxide ore phase during 1?3 hours, and after that, cooling is performed. The first separation is performed with separation of ore and carbon-containing material; then, ore material is ground to particles with size of 1 mm and less and repeated separation is performed with separation of ore material into metallic and oxide phases.EFFECT: simpler technological metal extraction cycles without any melting of ores at improvement of finished product quality.1 ex |
