Research methods and processes for selective leaching
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Please ask: For selective leaching, what are the general research methods and processes? Be more detailed, thank you
I think we must first know what elements the raw materials that need to be leached contain, and then select the most appropriate leaching agent for processing according to the elements that need to be extracted. Of course, some elements will be leached out at the same time, and the next step is the impurity removal process! :victory:
There are examples of selective leaching of high nickel matte in "Nickel Metallurgy". The poster can read it carefully to support the statement on the second floor.
1. First figure out the relatively fixed components of the system you want to deal with.； 2. List all leaching agents that can extract the required extraction substances ； 3. List the leaching methods that can be adopted for each leaching agent (temperature, concentration, time, pressure, etc.) ； 4. Test the leaching method with greater feasibility (leaching rate includes impurities, temperature, concentration, time, pressure, etc.) ； 5. Analyze the system of each of the above methods and find out the impurity removal and purification methods. ； 6. Statistics of routes, comprehensive raw materials, operating costs, etc. to select the best route.
Agree with the 2nd floor’s point of view. In order to correctly grasp the technical and economic indicators of leaching, sufficient leaching chemistry and engineering experiments need to be conducted before implementing the leaching project, which usually include: Determination of mineral composition, ingredients, chemical and physical properties of ores. When the properties of samples from different mining areas are greatly different, experiments must be conducted separately.