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Synthetic fertilizers are made of nitrogen, phosphorus and potassium and are often produced as dry pellets or soluble product.

What synthetic fertilizer equipment do you need?

Liquid fertilizer filling and capping monobloc

Production lines for bottling liquid products such as liquid fertilizer, re...

Classifier mill for recovered carbon black

Recovered Carbon Black (rCB) can be recycled back to the tire production chain ...

Classifier mill for powder coating

High-quality powder coatings are often required to manufacture equipment, appliances, an...

Open mouth bag filling machine for powders

The packaging of powdery products such as flour can be challenging as it is cru...

Mixing and fluid bed granulation

A mixing & fluid bed granulation system is the combination of a fluid bed dryer and a h...

High-shear impact mixer

When you need to mix cohesive powders with liquids or melt binders and require a homogenous end-produ...

Continuous high impact mixer

A high-impact mixer can help you to produce a homogeneous mixture when you are mixing powders a...

Conical screw mixer

When you want to mix segregative, free-flowing powders and pastes that require perfect mixing quality and...

High yield filter press

When a saturated slurry or sludge must be dehydrated with high yield results mining and other heavy i...

Overhead filter press

To name just a few of the myriad applications for overhead filter presses:  industrial mineral industri...

Continuous fluid bed dryer

In a Fluid Bed, a product or solid is made fluid by an upward moving flow of gas. The mechanical ...

Vertical form, fill and seal machine for bags from 5 to 50 kg

To securely create, dose and pack larger quantities of mat...

Automatic bagging machine for open mouth bags

Open mouth bags allow for a variety of different products to be packaged, wi...

Hygienic belt dryer

A belt dryer typically applies the product through an infeed chamber onto a perforated horizontal belt, w...

Laboratory roller compactor

For the laboratory or small amount compaction, granulation and briquetting of mineral and chemic...

Roller compactor for briquettes

Roller compactor

The roller compactor is used for briquetting larger throughputs. Briquetting is the compression of powders in...

Conical gentle crusher

For the gentle crushing of soft to medium-hard substances. Widely used in food industries for size red...

Flake crusher

Gently crush down brittle, easily broken materials to fine particle size.

Vertical peeler centrifuge

A vertical peeler centrifuge is used to separate solids, usually to separate fine particles from ...

Small scale pelleting press

Many industries require reliable pelletizing equipment with smaller scale production capacities....

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Tell us about your production challenge

When selecting production equipment for a production plant, it is important to talk to someone with experience in your field. Our industry experts have experience with various industrial applications. We’d love to help you!
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For growth, a plant needs nitrogen compounds. Proteins are essential for all living organisms and are composed of nitrogen-containing the necessary 21 amino acids. As only a few microorganisms are capable to absorb elemental nitrogen from the air, high-yield agriculture needs fertilizer added to the soil. Apart from nitrogen, phosphorus and potassium are two essential macro elements for plant growth. Phosphorous compounds are needed for the energy transfer of living organisms and potassium is responsible for the osmotic flow in cells. In addition to these main components, a lot of microelements are needed for healthy plant vegetation, these micro compounds are also mixed into the fertilizer.

Synthetic fertilizer processing

Fertilizer plants produce so-called NPK (nitrogen, phosphorus, and potassium) fertilizers, a mixture of the three major elements for good quality and quantity of crops. The most important nitrogen fertilizer is ammonium nitrate. Elemental nitrogen of air and hydrogen of natural gas form ammonia. One part is oxidized to nitrous oxides, absorbed by water to form nitric acid. The reaction of this acid with ammonia forms the base of nitrogen fertilizer. As ammonium nitrate is explosive, to counter this, limestone or dolomite powder is mixed with the melted compound. Another synthetic fertilizer, phosphorus fertilizer, has raw materials that consist mostly of minerals, like several apatites. The insoluble compound is treated with sulphuric acid to form the fertilizer superphosphate. Potassium compounds (mainly chloride, sulfate, and carbonate) are other minerals.

When making fertilizer, the different compounds are granulated and blended together with the help of a rotating drum. The fertilizer now takes its shape in the form of small beads. Any oddly sized beads are then taken out, after which the rest has inert dust applied which helps the fertilizer to keep its moisture. The beads are then dried and transported to a bagging machine.

Blending fertilizer with dolomite for safety

Due to the explosive attributes of ammonium nitrate, limestone or dolomite is blended with the pure compound of nitrogen fertilizer. An additional important side effect of adding this alkaline material is to neutralize the acidification of the soil caused by the fertilizer. The rocks are ground to a fine powder before mixing with fertilizer. High capacity milling can be achieved by a ball mill. By using a classifier, the size of the powder particles can be adjusted to suit the further fertilization-making process.

Transforming powder into dust-free briquettes

A granular product is preferred in the fertilizer market because it can avoid dust generation and lasts longer. Dust can be dangerous for operators and create a harmful working environment. To get dust-free materials, a blend of powder is fed into a compactor where two rollers compress and form briquettes. This briquette technique uses compression forces to remove and entrap air and mechanically bind the fine particles into larger, easy-to-handle material.

Bagging and packing fertilizer

Each end-user asks for a certain type of packaging when it comes to the granulated fertilizer and the bulk material is packed in a bag size that is suited for different demands. Smaller gardeners prefer a bag of one to two kilos, where a bigger customer might require 25-kilo bags. Then there is of course the industrial agricultural partner that requires fertilizer in big bags. For transportation, the bags are placed on a pellet in neat stacks by a robot, wrapped in stretch foil to protect it against possible breakage and spoilage.

Synthetic fertilizer making videos

Fertilizer bagging and packing

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