Fertilizers
INDUSTRY OVERVIEW FERTILIZERS
Plants need nutrients to grow which they absorb from the soil via the plant’s root system. Fertilizers provide the major nutrients (nitrogen, phosphorus and potassium and important secondary elements) that plants need. Unless the nutrients are replenished, the soil’s productive capacity declines with every harvest.
producers, manufacturers, wholesalers and retail distributors of nitrogen, phosphate and potash fertilizer used in the production of agricultural crops that help feed the world.
The fertilizer industry is truly global, with the geographic distribution of production dictated by energy economics and government policy in the case of nitrogen, and the presence of mineral deposits for phosphate and potash
The use of fertilizers has a direct correlation with crop yields and in turn on global food security. Productive agricultural systems rely on the efficient use of mineral fertilizers in order to deliver yields at levels that meet global population demands.
Expertise and Experience
POTASH
With over 50 years of experience serving world leading producers of potash, WEC has developed unique expertise in crystallization technology of potash.
Swenson crystallization solution includes:
- Evaporative Crystallization
- Cooling Crystallization with Multi- Stages Units
- Vacuum Crystallization
Evaporative Crystallization
NaCl is a By-product with much lower value than KCl.
Evaporative crystallization may be used upstream to remove Sodium Chloride (NaCl) from the feed to prevent double salt (NaCl and KCl) crystallization during cooling crystallization stages.
Swenson Sodium Chloride Evaporative Crystallizer technology offers various designs to reduce energy usage including:
- Multiple Effects system
- Mechanical Vapor Recompressor (MVR)
Cooling Crystallization vs. Cooling Pond
Even though the Cooling Pond may have lower CAPEX and OPEX, Swenson Surface Cooled forced Circulation Crystallizer technology offers many advantages in the production of Potassium Chloride (Potash) crystals.
ADVANTAGES:
- Consistent Production Throughout the Year
- Not Susceptible to Weather Variations
- Heat is Recovered in Multiple Stage Units
- Minimize the chilled water requirements by recycling the cooling brine between stages units
- Consistent Crystal Size, Habit and Purity
- Lesser Environmental Concern
Vacuum Crystallization
The Vacuum Crystallizers Flash Cool the Clarifier Discharge Solution to Precipitate KCl Crystal
Flashing is the Spontaneous Release of Water Vapour Due to Exposure to a Lower Pressure
The Precipitation of KCl Crystal is Mainly Due to the Reduction in Temperature, Not Due to Evaporation
AMMONIUM SULPHATE
Whiting Equipment Canada has been serving the industry since 1950’s. It has developed an extensive experience and expertise in Ammonium Sulphate crystallization.
Crystallization Solution
Reactive crystallization
Reactive crystallization is when a solid phase crystalline material results from the reaction of two components. This type of reaction can often be performed more profitably in a crystallizer than in a separate reactor. An example of reactive crystallization is the production of ammonium sulfate from liquid or gaseous ammonia and concentrated sulfuric acid.
The draft tube baffle crystallizer is particularly suited for reactive crystallization. The reactants are mixed in the draft tube of the DTB unit where a large volume of slurry is mixed continuously with the materials to minimize the driving force (supersaturation) created by the reaction. Removal of the heat produced by the reaction is accomplished by vaporizing water or other solvents as in a conventional evaporative type crystallizer.
Reactive crystallization can also be performed in a forced-circulation type crystallizer where the reactants are mixed in the circulation piping.
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