Common three leaching processes
In the leaching process of the material, the difference in the direction of movement of the leached material and the leaching reagent can be divided into three leaching processes. (1) downstream leaching The direction of flow of the immersed material and the leaching reagent is the same (Fig. 7-2). The leaching solution with higher content of the target component can be obtained by downstream leaching. The leaching reagent consumption is lower, but the leaching speed is slower, and the leaching time is longer. Higher leaching rate. (2) cross-flow leaching The immersed material is separately leached by several new leaching reagents. The leachate obtained by each leaching is uniformly sent to the subsequent operation (Fig. 7-3). The leaching rate of the cross-flow leaching is faster. The leaching time is shorter and the leaching string is higher. However, the volume of the leachate is large. The concentration of the remaining reagent in the leachate is high, so the reagent consumption is large, and the content of the target component in the leachate is low. (3) Countercurrent leaching The direction of movement of the immersion material and the leaching reagent is reversed, that is, the depleted material is contacted with the new leaching solution after several leaching, and the original immersed material is contacted with the leaching solution (Fig. 7-3). Countercurrent leaching can obtain a leachate with a higher content of the target component, and the remaining reagent in the leachate can be fully utilized. Therefore, the leaching agent consumes less, but the leaching speed is lower than the cross-flow rate, and more leaching stages are required to obtain a higher leaching rate. The percolation tank can be immersed in a downstream, cross-flow or counter-current leaching process; the heap leaching and local leaching generally adopt a downstream circulation leaching process, and the continuous agitation leaching generally adopts a downstream leaching process. If cross-flow or countercurrent leaching is to be used, solid-liquid separation operations should be added between the stages. The agitation leaching of the intermittent operation is generally a downstream leaching, but a cross-flow or counter-current leaching process can also be used. It is only necessary to perform solid-liquid separation after each leaching, and the operation is complicated. There are fewer applications in production. The leaching leaching can directly obtain the clarified leachate, and the agitated leached pulp must be separated by solid-liquid separation to obtain a clarified leachate for subsequent processing or a thin ore slurry containing a small amount of ore.
Company Profile
Xinxiang Lifeierte Filter Co., Ltd is specialized in manufacturing filter elements, filter housing, filter equipment, testing equipment and hydraulic parts.She is located in Xinxiang that is the center of filtration in China.Xinxiang Lifeierte Filter Co., Ltd integrates with oil filtration, water treatment and air purification to provide the society with more professional service and meet customers` demands. What`s more, Lifeierte has top-notch R&D team, professional technical team, effective production network and perfect after-sales service system. The corporate philosophy of Lifeierte is [to purify environment, to serve society, to manage faithfully,and to pursue excellence". The company also established the comprehensive cooperative relations with some famous design & research institutions and colleges. The quality of the product has reached the international advanced level and makes us achieve remarkable economic benefits.
Products
Mainly including:
National standard filters and filter elements, replacement of abroad filters and filter elements, the hydraulic equipment like oil filter machines and filter series, the filter detective equipment;
Compressed air filters and filter elements, air cleaning filter drums and filter-bag series, various kinds of air cleaning facilities in different patterns;
Kinds of water treating equipment like stainless steel water filters and filter elements, full automatic backwashing filters.
We carry out ISO, DIN, IDF and 3A industry standard strictly during the manufacturing process and all the products can conform to the standards of GMP.
The endeavor makes us more professional. The performance and the effect of our replace products are comparable with imports; in addition the performance and the quality of domestically-made filters or filter elements are also stable and reliable. All those have been selected and recognized by customers and research institutions.
testing standards are satisfied by the products
ISO2941- filter elements- the testing for the cracking resistance
ISO2942- filter elements-the identifying for the structural integrity
ISO2943- filter elements-the identifying for the compatibility between material and the liquid
ISO3723- filter elements-the testing method for the end load of filter elements
ISO3724- filter elements-the identifying for the fatigue properties of the filter elements
ISO3968- filter elements-the testing for determination of pressure differential/flow characteristics
ISO4572- filter elements-the testing for the multi-pass method for evaluating filtration performance.
Oil Purifier,Fuel Oil Purifier,Lube Oil Purifier,Vacuum Oil Purifier Xinxiang Lifeierte Filter Corp.,Ltd , https://www.chinafiltrations.com