Beneficiation process of fine-grained complex zirconium-titanium ore

Abstract

The application discloses a beneficiation process of fine-grained complex zirconium-titanium ore and relates to the technical field of mining metallurgy. In view of the technical problem that the prior art is difficult to effectively separate rutile and zircon in the fine-grained complex zirconium-titanium ore, the application comprises the following steps: desliming and grading; preparing the sand into a slurry with a mass concentration of 15%-25%, and feeding the slurry into a spiral chute for one-time rough separation and at least one-time scavenging separation; mixing benzohydroxamic acid, oxidized paraffin soap and palm oil, and activating and treating the mixture under the condition of ultrasonic waves and performing super mixing and stirring to prepare a composite collector; performing one-time rough separation, two-time fine separation and two-time scavenging separation of the heavy sand mixed ore in the flotation reagents containing the composite collector, an inhibitor and an activator, and obtaining a foam product as a rutile concentrate and a tank bottom product as a zircon concentrate. The application can simultaneously improve the grade and the recovery rate of the rutile and the zircon, the rutile concentrate recovery rate is increased by 10%-20%, the grade is increased by 10-15%, the titanium-iron grade in the zircon is reduced to below 0.5%, the process flow is simplified, and the production efficiency is high.

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