Method for separating copper-molybdenum mixed concentrate high in secondary copper content

Abstract

The invention discloses a method for separating copper-molybdenum mixed concentrate high in secondary copper content. The method includes the steps of concentrating and filtering, water returning and size mixing, floatation separation, concentrate filtering and the like. The method abides by floatability property difference between copper molybdenum minerals, adopts sodium hydrosulfide to effectively inhibit primary copper and secondary copper and realizes high-efficiency separation of the copper-molybdenum mixed concentrate according to an idea of 'light pressing and slow selecting'. Copper concentrate going through dense overflow water can be used for size mixing of the copper-molybdenum mixed concentrate after concentrating and filtering, so that water resources are saved, and pollution caused by discharging of medicament is reduced. The method has the advantages of simplicity in medicament system and flowage structure, easiness in management operation, stability in technical process and production index and the like.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and relates to a method for separating copper-molybdenum mixed concentrate with relatively high secondary copper content. Background technique [0002] Separation of copper-molybdenum mixed concentrate is a world-recognized ore dressing problem. When the copper in the mixed concentrate exists in a large amount of secondary copper minerals, the separation of copper and molybdenum is particularly difficult, and the production practice is even more difficult. Fundamentally speaking, there are two separation methods for copper-molybdenum mixed concentrate: one is to suppress molybdenum and float copper; the other is to suppress copper and float molybdenum. Dextrin, starch, gum arabic and other organic gums are used as copper mineral inhibitors in the process of molybdenum suppression and floating copper. The process operation is complicated, the cost is high, and the recovery rate of molyb...

AI Technical Summary

Problems solved by technology

In recent years, the cyclone static micro-bubble flotation column has been applied in the copper-molybdenum separation process. Compared with the flotation machine, the flotation column has many advantages such as the thickness of the foam layer, the size of the bubbles, and the number of bubbles. Pipelines and bubble generators are often blocked, making operation and management very inconvenient

[0004] The general problems in the application of the above-mentioned processes are: the pharmaceutical system, process control and management are relatively complicated, the operation requirements for workers are high, and the production indicators are unstable.

Images