| 摘要 |
FIELD: color metallurgy. SUBSTANCE: crude stannic concentrate is screened according to 0.2 mm size. The +0.2 mm size is subjected to gravity flotation with sulfuric acid, butyl xanthate, and Diesel fuel. The -0.2 mm size is floated to separate sulfides with sulfuric acid, butyl xanthate, and foaming. The chamber product of the flotation is concentrated on a concentration table. A stannic tungsten product obtained with a flotation and concentration is fed to a magnetic separation to obtain stannic-tungsten product and to electric separation to obtain tungsten scheelite products. EFFECT: enhanced tungsten extraction. |
