Lead and zinc metals are widely used in various major industrial fields. With the continuous research on lead-zinc technology, the demand for lead-zinc ore resources is also increasing. In the actual mining process, the beneficiation of lead-zinc oxide ore is relatively complex, and it also puts forward higher requirements in the beneficiation and smelting technology of the ore. Below we will systematically introduce the beneficiation process technology of low-grade lead-zinc oxide ore.
Lead-zinc ore separation agent
The practice of beneficiation of lead-zinc ores is mainly based on flotation technology, and the selection of chemicals has an important impact on the flotation effect. Flotation reagents are mainly used to regulate and control the flotation process, weaken or improve the flotability of materials, so as to separate gangue and ore, and achieve the purpose of removing impurities or extracting useful mineral particles. Lead-zinc ore reagents mainly include collectors. , activators, inhibitors.
1. Collector:
In lead-zinc ore flotation, commonly used collectors include dixanthate and ethylxanthate, both of which have strong collection capabilities.
2. Activator:
Since the floatability of zinc is worse than that of lead, lead is often preferentially floated during the flotation process. Among the activators, copper sulfate is currently the activator with better activation effect.
3. Inhibitors:
From the perspective of environmental protection, the use of fluorine-free inhibitors is an inevitable trend, mainly including zinc sulfate and sulfite. Among them, zinc sulfate is the most important and common inhibitor in fluorine-free processes, and is often used in combination with other inhibitors; sulfite has better inhibitory effects under neutral and alkaline conditions, but has no inhibitory effect under acidic conditions.
Lead and zinc metals are used more and more widely, but the reserves of lead and zinc are relatively small. Lead and zinc resources are increasingly in short supply. Faced with this situation, lead and zinc resources must be mined and utilized more rationally. On the one hand, we continue to improve lead-zinc ore mining technology and master better mining processes and mineral processing reagents; on the other hand, we do a good job in research and development of recycling technology to improve the level of secondary utilization of lead-zinc ore.
Post time: Jul-31-2024
