Copper-molybdenum ore is an important mineral resource for obtaining copper and molybdenum metals. Copper-molybdenum ore is generally produced in porphyry copper deposits and skarn copper deposits, especially porphyry copper deposits are always associated with molybdenite. While recovering copper sulfide, the comprehensive recovery of molybdenum should be considered. This article mainly introduces the characteristics of low-grade porphyry copper-molybdenum ore and the commonly used process flow for copper-molybdenum ore dressing.
The chromite beneficiation process can adopt gravity separation, magnetic separation, flotation and other processes according to the mineral composition and properties. However, it is difficult to separate all gangue minerals from chromium by a single beneficiation method. Therefore, in the chromite beneficiation process, a combined beneficiation process is often used. This article will introduce three commonly used combined beneficiation processes through three project cases.
After fluorite is extracted through mineral processing, the tailings are usually discharged and stored in a tailings pond. In fact, fluorite tailings still have great utilization value. For example, the quartz in them can be further extracted. Quartz is widely used in metallurgy, building materials, electronics and other industries, especially high-purity quartz, which has higher utilization value in coatings, optics, and precision materials. Therefore, the significance of extracting quartz from fluorite tailings is not only to obtain surplus value, but also to avoid waste of resources and make the best use of them. So, let's discuss the operation method of extracting quartz from fluorite tailings.
Skarn iron ore is a type of iron ore deposit related to contact metamorphism of intermediate-acidic intrusive rock bodies. The ore minerals of this type of iron ore deposit are mainly magnetite, and hematite, siderite, specularite, etc. can be seen. The gangue minerals are skarn mineral combinations, such as garnet, diopside and hematite. Skarn iron ore is an important iron ore resource. The selection of mineral processing procedures and equipment is an important link to improve the quality of iron concentrate. This article introduces the main mineral processing procedures and key equipment.
High-purity feldspar can be used in the glass industry and the ceramic industry. In the glass industry, feldspar can reduce the melting temperature in glass production, reduce the amount of soda ash, and adjust the viscosity of the glass liquid. In the ceramic industry, feldspar in the ceramic blank can speed up the drying of the blank, reduce drying shrinkage and deformation; it can also reduce the expansion coefficient and high-temperature fluidity of the glaze, and improve the corrosion resistance. So, how to purify feldspar from feldspar ore? There are mainly the following methods.
Tailings are wastes generated by the ore dressing plant. Although they are wastes, some tailings still contain useful components, but the content is relatively low. Two methods are often used in tailings treatment, one is tailings dry discharge, and the other is tailings re-selection. Tailings dry discharge is a dehydration treatment method for tailings that do not need to be re-selected, while tailings re-selection is for tailings that contain useful components and have re-selection value. Below we introduce these two tailings treatment methods respectively.
