In the leaching process, the transfer of the target component from the solid phase to the liquid phase is achieved, and then the solid-liquid two-phase separation operation is performed to discard the tailings and obtain the leachate for the next operation. However, in some cases, it is also possible to carry out the next operation without leaching the slurry, such as carbon slurry adsorption, sedimentation-flotation, displacement-flotation, and finally, it is necessary to obtain a qualified concentrate with less water content. Separated by solid and liquid. Compared with physical beneficiation , the solid-liquid separation of chemical beneficiation has the following characteristics. (1) The slurry tends to be highly corrosive, so attention should be paid to the choice of equipment materials, such as dilute sulfuric acid medium, all kinds of trough equipment lined with acid-resistant bricks, acid-resistant ceramic sheets, acid-resistant rubber, epoxy glass steel, polyvinyl chloride and metals such as aluminum, stainless steel may be used provided the acid-resistant steel pipe when conditions. The nitric acid medium is basically the same. For hydrochloric acid and chloride medium, chemical enamel is commonly used as a reactor due to the special corrosive action of chloride ions. General alkaline medium sump concentrated sulfuric acid and steel products can be used. (2) Solid particles are generally thinner than those of physical beneficiation, and often contain some colloidal particles. Therefore, solid-liquid separation in chemical beneficiation is often more difficult to dehydrate than physical beneficiation products; chemical precipitates are often crystalline and sometimes amorphous. The product has a finer particle size and it is more difficult to separate solid and liquid. In general, the coarser the particle size, the better the separation. Therefore, in the leaching stage, it is not only possible to increase the leaching rate and the fineness of the grinding is too fine, and it is difficult to take into consideration the solid-liquid separation. In addition, the slurry concentration is too low (such as 10%) is not suitable for direct filtration, it should be concentrated first. (3) Solid-liquid separation of chemical beneficiation Since the separated solid fraction (filter cake or underflow) inevitably entrains a considerable amount of solution, this part of the solution contains the target component and the concentration of the liquid phase in the graded material. Similarly, in order to improve the recovery of the component of interest or the grade of the product, the solid portion is washed. The method of solid-liquid separation of chemical beneficiation is roughly the same as the method of deionization of concentrate by physical beneficiation, and the following methods are commonly used. 1 Gravity sedimentation method allows the solid particles to settle by gravity to obtain a process of concentration of the supernatant and the underflow. Commonly used equipment includes sedimentation tanks, various concentrators, fluidization towers, and classifiers. 2 Filtration method It is the same as the concentrate filtration method of physical beneficiation. It is the most widely used method for solid-liquid separation of chemical beneficiation and is a common method for obtaining clear liquid. Commonly used equipment is various types of filters. 3 Centrifugal separation method It is a method of sedimenting and filtering solid particles by centrifugal force. Commonly used equipments are hydrocyclones, centrifugal sedimentation and centrifugal filters. 1. Simple exploration of mineral processing test - before the purchase of mineral rights, meet the investment analysis and reduce the initial value assessment of investment risk. 2. Feasibility test of ore - It is used for detailed geological analysis and analysis, to meet the evaluation certificate, and to determine the reasonable process and reasonable process indicators. 3, system process test - practically used before the construction of the plant, meet the design finalization, find the law to determine the best process indicators. 4, technical research and research - the use of mine disaster technology is unsolved, to meet the improvement of efficiency, product failure to recover low cost and high time. 5, process flow verification test - the actual use of ore properties comparison, to meet the choice of pharmaceutical plants, the mine has different ores to determine the adaptability. 6, process flow test - practically used to produce the factory, to meet the current factory investigation, the selection of factory physical examination analysis and plant selection. 1, determine the type of ore ---- need to do spectral analysis and rare element test. 2, to identify the specific nature of the ore - need to do multi-element analysis to determine the content of valuable and harmful elements. 3, to find out the relationship between minerals in the ore, content and composition - the need to do rock ore identification has important guiding significance for mineral processing. 4. Determine the specific existence form and distribution of elements in the ore. It is necessary to do phase analysis and have guiding significance for mineral processing. 5, concentrate, tailings test --- need to do valuable elements and harmful elements. 6, the original ore and concentrate water, the proportion of ore is determined - the actual measurement of mineral processing. Real Time Pcr,Pcr Dna Analysis System,Pcr Detection Medical Equipment,Real Time Pcr System Diagnostic Platform Changzhou Taqlab Biotechnology Co.,ltd , https://www.dinaipcr.com