How to extract vanadium ore from stone coal? Acid leaching is the most common leaching method for stone coal vanadium ores, including direct acid leaching and acid leaching after roasting. Because of its strong adaptability, high leaching rate, and the advantages of environmental protection and low consumption, it has become the preferred method for extracting vanadium from stone coal vanadium ores. As a manufacturer of vanadium ore vertical mills, Guilin Hongcheng will introduce to you today the application of vanadium ore vertical mills in extracting vanadium from stone coal vanadium ores.
In stone coal vanadium ores, refractory vanadium mainly exists in the crystal lattice of mica minerals. Generally, this part of vanadium needs to be leached under high temperature and high acid conditions. In addition, additive roasting in an oxidizing atmosphere can also leaching vanadium. The mica lattice is destroyed, but only a small part of the vanadium can be released, and the vanadium leaching rate is low; the condition control of the vanadium leaching process is actually to destroy the vanadium mica lattice to the greatest extent, and the released vanadium will enter under the action of acid solution, thereby realizing the leaching process of vanadium.
What is the application of vanadium ore vertical mill in extracting vanadium from stone coal vanadium ore? At present, research has begun on the extraction of vanadium from the clean production of stone coal vanadium ore decarburization residues. The method being studied is to find a new additive to directly perform acidic leaching to extract metallic vanadium from the stone coal vanadium ore decarburization residues without grinding and roasting. However, it is difficult to find such additives, especially the non-grinding treatment that requires high physical and chemical properties of the additives, and the leaching rate of vanadium is not high.
Experiments show that as the particle size of the ore powder decreases, the vanadium leaching recovery rate increases. The stone coal vanadium ore is crushed and ground to less than 0.15mm through the vanadium ore vertical mill. Under the synergistic effect of additives and sulfuric acid, under heating and stirring conditions , it can be directly leached with sulfuric acid and the leaching recovery rate can reach more than 76%. At the same time, the oxidation degree of stone coal vanadium ore powder has little effect on the leaching reaction. Therefore, vanadium ore vertical mill powder separation is of great significance for extracting vanadium from stone coal vanadium ore.
As a manufacturer of vanadium ore vertical mills, Guilin Hongcheng's HLM series vanadium ore vertical mills are ideal grinding equipment for extracting vanadium from stone coal vanadium ores. They have the advantages of low unit energy consumption and high production capacity. It provides a good raw material basis for the subsequent vanadium extraction and leaching process from stone coal vanadium ores. If you have purchasing needs for vanadium ore vertical mills, please leave us a message to learn more about the equipment details.