BJN has extensive experience in the design, manufacture and installation of a range of processing equipment for the Fertilizer Industry. BJN has designed numerous solutions to leading producers throughout the world with designs based on proprietary know-how as well as licensed technology.
During the production of fertilizer a large volume of exhaust is generated and needs to be treated. Generally first dust & particle removal apply followed by physical and chemical absorption process.
These by-products often contain components such as ammonia, phosphate or urea. To remove these components, BJN designs gas scrubbing systems consisting of a combination of dry and wet gas scrubbing stages.
NPK fertilizers typically contain at least 3% N plus 5% P2O5 plus 5% K2O and at least 20% total nutrients. Nutrient ratios are provided for NPK fertilizers, such as 1:1:1. If there are additional
numbers, it would refer to magnesium and then sulfur. Since each granule of these fertilizers contains the same proportion of nutrients, application to the soil can be simple.
NP fertilizers have a minimum of 3% N and 5% P2O5 and at least 18% of total nutrients. These products are applied where the soil is already rich in potassium content or where potash can be applied as a standalone fertilizer.
NK fertilizers have at least 3% N and 5% K2O and at least 18% of total nutrients. These are applied in soils that are rich in phosphate content and can be distributed independently.
PK fertilizers have various combinations of straight phosphate and potassium-based fertilizer materials. There is a minimum of 5% of both P2O5 and K2O components and they contain a minimum of 18% nutrients. Boron and magnesium are often added.
Compound fertilizers contain two or more nutrients and are also known as multinutrient fertilizers. A complex fertilizer refers to a compound fertilizer formed by combining ingredients to react chemically. Compound fertilizers can also be produced by blending two or more granular fertilizers of similar size. Such products retain the physical and chemical characteristics of individual compounds. They are made by mixing basic fertilizers derived from ammonia with salts containing phosphorus or potassium.
There are no especially important or unusual environmental problems directly associated with the production of NPK compound fertilizers