What is Crystallizer and What Are Its Types?

When there is a processing device that is used to concentrate feed into stable crystals in clean water, that’s what becomes the process of a crystallizer. When there is a solid-liquid separation technique and in this technique, solid crystals are very well produced from a particular solution that is in liquid form and that is known as crystallization. The help of crystallizers is that they can easily help in removing the liquid wastes completely and this particular process results in zero liquid discharge. They are 2 steps of crystallization and those 2 steps are basically primary nucleation and secondary nucleation. When there is a formation of new crystals, it is referred to as primary nucleation while secondary nucleation takes the primary stage in such a way that can give result in the mass processing of crystals. 

As far as crystallizers are concerned, they can easily be used on their own or they can also be used in conjunction with different types of technologies such as evaporators. Evaporators have got the capacity of using heat steam which can help in draining water from a solution and they are known as stream evaporators. When it comes to the process of evaporation, it is able to concentrate liquid with the help of heating the solution and that solution is usually water. There is a use of wastewater concentrator and it is a form of evaporator which is used in the process for the sake of converting waste saturated industrial wastewater into something which is known as purified water and that can be reused.  If you are looking for a crystallizer supplier, you can definitely go ahead with the platform of Alaqua.

Types of Crystallizers-

• Forced circulation crystallizer: In this particular type of crystallizer, there will be a vapor compression principle and it is used in such a way in forced circulation crystallizers that it may be a single or multiple effects. These effects normally go through the range of low vacuum through different types of atmospheric pressures. The units are used when there is no critical level of crystal size or when the crystals start expanding and that too at a reasonable pace. They can be used of every building material for the process of the fabrication of crystallizers and it depends on the type of application.
  
  
• Classified suspension crystallizer: This is definitely going to be the oldest design as far as producing measurable and huge crystals is concerned and this is known as Oslo style crystallizer. It’s definitely going to depend on supersaturating the mother liquor and it happens when it comes in contact with the larger crystals in the crystallization chamber. It is able to hold the majority of the crystals in suspension even when there is no way of a stirring system. This particular process allows the process of low crystals with those which come with a narrow size distribution.
  
  
• Cooling crystallizer: If you want to increase the solubility of a compound salt and solutions, you can definitely go ahead with a cooling crystallizer because it works as the temperature goes up. The mixture becomes such that it can turn into supersaturated as the beginning of saturated solutions and crystallization happens. As far as the main benefits of cooling crystallization are concerned, they are energy consumption as well as high crystal size uniformity. When there is an elimination of heat supply for evaporation that directly results in significant energy savings. There is a typical form of crystallization cooling that is known as flash cooling in which there is a method by which a portion of the liquid gets evaporated. This particular method helps in eliminating latent heat and it also makes it possible for cooling to take place.
  
  
• Evaporative crystallizer: Till the time the solvent evaporates evaporative crystallization, the heating process goes on and this comes when there is a solution that contains solvent as well as soluble and that goes into the crystallization process. Whenever the higher dosage exceeds the chemical compounds, solubility breaks out of the molecules when the compound takes place. Crystals are broken out because of the evaporation of the solvent. The most popular method of crystallization is evaporative crystallizer because this happens when you really want to deal with the common compounds which include sucrose and inorganic salts. As far as heat supply is concerned, it’s definitely going to be normal and there’s the use of forced circulation in such crystallization units. When it comes to transformation, it occurs at different essentially thermal temperatures because the primary mechanism involved in the process is evaporation.
  
  
• Vacuum crystallizer: When it comes to salts in the process, vacuum cooling crystallization is used because salts lose solubility whenever there is a rise in temperature. Lowering of a strain takes place steadily which gives rise to the solvent in the form of water and that gets evaporated. This becomes the solution to cool to its boiling point. Whenever the temperature gets below salt crystallizes very much. 

 

Merits and demerits of Crystallization-

There are different types of merits and demerits of crystallization and let us know about some of the merits of crystallization first before knowing its demerits:

• You will be able to find high purification which is just going to be obtained in a single step.
• Production of a solid phase is possible on this particular surface and it is definitely going to be suitable as far as direct packaging and sale is concerned.
• You can very much operate even if the temperature is low and you'll have to use low energy requirements as compared to corresponding distillation separation.
• As far as the plant is concerned, it’s definitely going to be simple and easy to maintain and construct.
• When it comes to alternative separation processes, it is definitely going to be more economic. 

There are some disadvantages and they have been mentioned as follows:

• Crystallization has the capacity of purifying only one component at a time. 
• As far as yield is concerned, it is just going to be limited because of the phase equilibria.

Crystallization in Industries-

Crystallization is used a lot in different types of industries and it is in a variety of processes. The applications of crystallization take place in bulk chemicals and those applications are used in various products such as sugar, fertilizers as well as salt. Application of crystallization is also in products such as chemicals and pharmaceuticals. Crystallization has become a very important part of different types of products and it is able to make sure that things are being processed in a good manner.

Conclusion:

There are different types of platforms that are available for the crystallization process and if you really want to have a crystallizers supplier, you can definitely go ahead with the platform of Alaqua Inc. because this particular platform is definitely going to be useful for you. This particular platform gives crystallizers to various companies and those companies are able to use crystallizers for different products in their own fields. We have understood the types of crystallizers mentioned above and all the crystallizers have got their own application according to the situation. Different types of crystallizers are used in different ways and different methods are always used with the supervision of the experts and they start the crystallization process and go ahead with the process. But it is important to keep in mind that suitable equipment needs to be used when there is a process of crystallization because only suitable equipment will be able to give good results.