Inhibition reelection and separation method for bulk concentrate floatation of plumbum-zincium, plumbum-zincium-copper or plumbum-copper

Abstract

An inhibition gravity treatment separation method for lead-zinc, lead-zinc-copper or lead-copper floatation collective concentrates pertains to the mineral processing technical field. In gravity treatment separation of the collective concentrates, lead sulphide inhibitor is added. The method includes the following procedures: after lead sulphide inhibitor is added, the collective concentrate is sent to a table concentrator again for gravity treatment separation; after the gravity treatment separation in the table concentrator, the concentrate belt includes lead concentrate and sub-concentrate belt and the tailing zone includes sub-concentrate and gangue containing lead-zinc, lead-zinc-copper or lead-copper; the obtained sub-concentrate and the gangue undergo the gravity treatment separation in the table concentrator again or for a plurality of times, thus finally obtaining lead concentrate, zinc concentrate, zinc-copper concentrate or copper concentrate. Due to the existence of lead sulphide inhibitor, the floatability of the lead sulphide is completely inhibited so as to highlight the high specific gravity feature of the lead sulphide; therefore, the lead sulphide is easily separated from a plurality of metallic collective concentrates by the gravity treatment separation in the table concentrator. The content of the metal elements in the obtained concentrates is mutually low and the major metal concentrate and the attaching metal concentrate can both satisfy the metallurgical standards and requirements, thus having extremely remarkable economic benefits.

Description

Suppression gravity separation method for lead-zinc, lead-zinc-copper or lead-copper flotation mixed concentrate technical field The invention belongs to the technical field of beneficiation of non-ferrous metal ores, and in particular relates to a shaking table gravity beneficiation separation method with an inhibitor added. Background technique Non-ferrous metallurgy, whether it is pyrometallurgy or wet method, must use concentrate. The beneficiation of lead-zinc, lead-zinc-copper or lead-copper mixed ore is very difficult. Because the control of the flotation separation suppression point is very difficult, the metal elements of the output concentrate often contain each other high. Because galena has natural buoyancy, the metal elements in the concentrate obtained from gravity separation are also high in each other. Even if the lead-zinc, lead-zinc-copper or lead-copper mixed ore undergoes combined flotation-gravity separation beneficiation, the mutual content of metal...

AI Technical Summary

Problems solved by technology

The main metals obtained by metallurgy contain more intermetallics, resulting in a high cost of recycling non-main metals, and a great waste of waste when discarded.

If the mutual content of metal elements in the concentrate exceeds the standard to a certain extent, it will directly make it difficult to carry out the subsequent metallurgical process, and it will be necessary to do ore blending or other treatments, causing unnecessary waste to production