In recent years, with the advancement of science and technology and the continuous development of mining technology, more and more composite iron ores have been discovered, which contain a variety of non-ferrous useful minerals that can be comprehensively utilized. These associated minerals can not only increase the economic value of the ore, but also effectively utilize resources and reduce environmental burdens.
The main task of mineral processing plant design is to effectively separate useful minerals, gangue minerals and impurities in the raw ore through physical and chemical methods, so that the products meet the needs of smelters or other users. Common physical mineral processing methods include gravity separation, flotation and magnetic separation; chemical mineral processing methods include roasting, leaching, adsorption, replacement and extraction. The design of mineral processing methods is mainly based on the characteristics of the raw ore and the production needs of the mineral processing plant.
High-sulfide gold ores contain a high proportion of sulfide minerals such as pyrite and arsenopyrite, in which the gold grade is relatively low, and the natural gold particles are fine, usually tightly wrapped by sulfide minerals such as pyrite. The characteristics of this type of ore are that gold and sulfide are closely related, resulting in a low gold recovery rate in the direct leaching process, and high consumption and production costs of gold leaching agents. Therefore, for high-sulfide gold ores, the direct cyanide leaching process is not recommended.
In modern industry, the flotation process of fluorite ore is of vital importance, directly affecting the recovery rate and purity of the ore. In order to achieve efficient flotation of fluorite, multiple key factors need to be considered comprehensively. This includes not only the selection of flotation collectors, such as the widespread use of oleic acid, but also the rational use of inhibitors, pH adjustment of slurry, control of grinding fineness, management of slurry temperature, and optimization of flotation process technology.
Most of the remaining fluorite ores are of low grade and contain many gangue impurities. It is difficult to reach the minimum grade required by the industry by relying solely on traditional beneficiation technology. Therefore, it is necessary to update and optimize the traditional fluorite ore beneficiation technology to improve the utilization rate of fluorite resources. Fluorite ores with different mineral compositions require different beneficiation processes and methods.
Fluorspar ore is an important non-metallic mineral resource, widely used in metallurgy, chemical industry, pharmaceuticals, building materials and other fields. With the increasing demand for industrial development, the supply of high-quality fluorite is particularly important. However, the efficient utilization of fluorite resources depends on scientific and reasonable mineral processing technology.
In the flotation process, reverse flotation is a common technology used to remove impurities in quartz sand to improve the purity of the product. In the reverse flotation process, its effect is affected by many factors. This article will discuss in detail the influence of factors such as pulp pH value, particle size, pulp concentration, collector dosage and pulp temperature on the quartz sand reverse flotation process.
Copper-zinc sulfide ores contain a variety of mineral components, and the ore properties are complex and difficult to separate. In order to achieve effective separation of copper-zinc minerals and improve the quality of concentrates, this paper proposes and solves a series of key issues based on the properties of the ore. Through systematic research and process optimization, it aims to provide theoretical support and practical guidance for the flotation separation process of copper-zinc sulfide ores.
The flotation methods of iron ore mainly include positive flotation, reverse flotation, positive and reverse flotation, and combined flotation. In order to improve the beneficiation efficiency of iron mineral, it is necessary to comprehensively consider three factors: iron mines type, flotation environment and flotation reagent.
Weakly magnetic iron ore is divided into hematite ore, siderite ore, limonite ore, and specularite ore according to the type of minerals. And according to the coarseness of the embedding particle size, weakly magnetic ore can be divided into coarse-grained type, medium-grained embedding type, and fine-grained, micro-fine-grained embedding type. The following will introduce you to these three types of weakly magnetic iron ore and weakly magnetic iron ore beneficiation technology.
At present, roasting magnetic separation, weak magnetic separation, strong magnetic separation, flotation-gravity separation, etc. are widely used for the mixed iron ore processing . These mineral processing methods not only improve the efficiency of mineral processing, but also reduce the cost of mineral processing to varying degrees.
Most copper ores coexist with various metals, among which sphalerite often coexists with copper sulfide ores to form copper-zinc sulfide ores. Generally, mineral processing plants will choose flotation process to treat such ores, but with the increasing awareness of environmental protection and energy conservation and emission reduction, the requirements for flotation technology are getting higher and higher. Choosing a reasonable, efficient and environmentally friendly environmental protection process is the future development direction of flotation technology.
