The ion exchange purification method is a multi-phase metathesis reaction between a target component ion in a solution and a solid ion exchanger, and the target component is preferentially converted from a liquid phase to a human solid state exchanger, and this process is called "adsorption". Then, the ion exchanger saturated with the target component is rinsed with an appropriate reagent to re-transfer the target component to the human solution, thereby purifying and enriching. The latter process is called "rinsing," "elution," or "desorption." These two processes are often simply referred to as "ion exchange."
Adsorption and leaching are the two most basic tasks of ion exchange. Generally, there are washing operations after adsorption and rinsing operations. The post-adsorption washing is to wash away the adsorbed stock solution and the impurity component having a small affinity, and the rinse after the rinsing is to remove the eluent in the resin bed. Some purification processes also involve exchanger conversion or regeneration after rinsing and rinsing. The principle flow of the ion exchange purification method is shown in Figure 7-5.
There are many types of ion exchangers, and various types of organic synthetic ion exchange resins are currently the most widely used.
Ion exchange technology is widely used in nuclear fuel, rare earth separation, chemical analysis, purification of industrial water, waste water purification, high-purity preparation of ion-exchanged water and extraction and isolation of certain metal components from dilute solution. For example, cyanide ions and flotation reagents are removed from gold, silver cyanide solution and tailings water.
The ion exchange method has many advantages such as good selectivity for purification and enrichment of metal components, high work recovery rate, low operation cost, and high quality chemical concentrate. It is also possible to directly extract the target component from the leaching slurry (slurry adsorption method), or combine the leaching operation and the adsorption operation together (mineral resin method) to increase the leaching rate and eliminate the solid-liquid separation operation. The main disadvantage of the ion exchange method is that the adsorption capacity of the exchange resin is small, and it is only suitable for extracting the target component from the dilute solution, and the adsorption rate is small, and the adsorption cycle is long. Therefore, in many fields, the ion exchange method is replaced by organic solvent extraction. .
Bag filter is a pressure pulse bag filter developed on the basis of the pulse dust removal technology and to meet the needs of flue gas purification with large air volume. Not only has the advantages of strong dust cleaning ability, high dust removal efficiency and low emission concentration, but also has the characteristics of stability, reliability, low gas consumption and small area, which is especially suitable for the treatment of large air volume smoke.
TBLM Impulse Dust Collector uses solenoid impulse blowing dust technology,working without downtime,cylinder structure,centrifugal entering wind system,reducing resistance and the bag load.Flat bottom scraper entering system and cone entering system reduce the equipment height.It is widely used in gas dust separation and material collection under normal atmospheric temperature in grain and oil,food,chemical,pharmacy and cement industry.
XLD Type Cyclone Separator is widely used in industrial and mining enterprises,workshops.It is good at dust collecting for filter,cement,building materials,refractory in crushing,sand blasting and tunnel operating,Emission concentration is lower than the national standard .XLD Type Cyclone Separator has many advantages such as using less metal material,has big air volume,simple structure,small resistance,high efficiency,small area occupied,less investment,easy maintain,fast effect,low energy consumption,no wearing parts etc... It has good effect on collecting dust with high density or big particle size.XLD Type Cyclone Separator will not be affected by different material concentration at entrance.According to different concentration and different size of dust,it can be used as first level de-dusting or single de-dusting.It can also be used for dust collecting from corrosive gas and high temperature gas.
If you have any questions, please contact with us directly. Welcome you can visit our Factory.For inqury,Please send mail directly to us.
Flour Machine Dedusting Equipment
Flour Dust Collector,Flour Dedusting Machine,Impulse Dust Collector,Bag-Type Dust Remover Machine
Shandong Hengyi kaifeng Machinery Co.,Ltd , https://www.xhykf.com