As an important precious metal, the development and utilization of gold ore has great value. In the process of mineral processing, the recovery rate of gold ore is one of the very important indicators. The factors affecting the recovery rate of gold ore include the characteristics of gold mine, gold ore processing process and the management and operation of gold mine concentrator. In this paper, we will explore how they affect the gold mine recovery from these three aspects.
As a key equipment often used in metal ore beneficiation plants, ball mills can be used in the first, second, third or regrinding processes. The purpose of grinding is to dissociate and separate useful minerals and gangue minerals from each other, and secondly to provide separation process with suitable particle size for subsequent sorting operations. In actual production, the grinding operation often forms a closed circuit process with the classifying operation, so the too coarse ore particles in the grinding products may enter the regrinding process in the process for reprocessing, and the over-crushed minerals have no chance of recycling.
As a waste material produced in the extraction and processing process of tungsten ore, tungsten tailings recovery is also an important way to improve the utilization rate. Choosing the appropriate tailings treatment method can not recover valuable minerals, but also can reduce its impact on the environment. The specific techniques and methods of treating tungsten tailings can vary according to the ore composition, tailings characteristics and production requirements. The following will introduce four treatment methods of tungsten tailings, namely gravity separation, flotation separation, magnetic separation and hydrometallurgy.
Sedimentary rock-type apatite ore is usually rich in phosphorus elements, exists in the form of calcium phosphate, and is an important phosphate fertilizer raw material, widely used in agriculture. Therefore, the exploitation and utilization of apatite is crucial for global agriculture and food production. However, the issue of limitation and sustainability of phosphorus resources has also received increasing attention, and overexploitation of apatite may lead to resource depletion and environmental problems. The selection of appropriate sedimentary rock type phosphate mineral processing technology and equipment can improve the utilization rate of phosphate mineral resources and reduce the waste of resources.