Your raw materials

As an actor in the chemical industry, do you have excess Hydrochloric acid (HCl) ?

Hydrochloric acid (HCl) is a by-product from several industries like Caustic soda (NaOH), Potassium sulphate (SOP) and some polymers (Polyurethane). 

Depending on your final product target, Prayon offers through the Ecophos Process:

• To produce feed-grade DCP
• To produce DCP super-rock – as an intermediate product in the P value chain.

Our technologies enable to recycle Spent Hydrochloric Acids. 

Either you are yourself sulfuric acid producer or you have an access on the market. Or you are an actor in the metal industry or other sectors and you wish to recycle your sulfuric acid (H₂SO₄) waste stream in phosphate production independently from its content in impurities and low concentration. 

Depending on the Sulfuric Acid quality and the final product target, Prayon offers:

• Considering high-concentration Sulfuric Acid (> 70%, typically 96% to 98.5%), Prayon offers several Phosphoric Acid Production processes (Dihydrate, DA-HF, Central – Prayon, Hemihydrate, Hemi-Dihydrate).
• Considering low-concentration Sulfuric Acid (< 12%, typically 5-10%), Prayon offers to produce feed grade DCP or DCP super-rock– as an intermediate product in the P value chain.

Our technologies enable to recycle Spent Sulfuric Acids.

All Prayon phosphoric acid and DCP production processes are perfectly suited to use low to high grade phosphate rocks.

Based on the chemical analysis of the rock and in-depth discussion, we will guide you to the optimum process. During the pilot test phase, the process conditions will be adjusted to improve P₂O₅ recovery and filtration rate with regards to the type of rock impurity.

Depending on the rock quality, Prayon offers the following solutions to reach fertilizer quality products:

• Considering low-grade rocks containing a high level of impurities, a chemical beneficiation will be required to recover and eliminate the impurities through the Ecophos process or the GetMoreP process. Our experts will support you to select the best option for your project.
• Considering medium- to high-grade rocks with a limited level of impurities, Prayon offers several Phosphoric Acid Production processes (Dihydrate, DA-HF, Central – Prayon, Hemihydrate, Hemi-Dihydrate).

Whatever the quality of the raw materials, Prayon offers the following solutions to meet feed quality products:

• Direct production of DCP through Ecophos process
• Direct production of DCP through GetMoreP process

Our experts will support you to select the best option for your project.

As the main actor in the phosphate innovations and our strong commitment to have a high degree of sustainability we are always looking for closing the cycle of the phosphorus and are committed to process any source of Phosphorous.

Prayon has developed specific applications and solutions to recover a wide variety of stream containing Phosphorous. In our production side we are able to collect, purify and reuse those stream. Prayon has also created solution to valorise tailings and slime of phosphate mine, greatly improving their sustainability by increasing their reserve and efficiency.

The solution for your P-source is a combination of one or two of these technologies:

• Upgraded rock – Ecophos
• Upgraded rock – GetMoreP
• Phosphoric Acid Purification 

Our experts will support you to select the best option for your project.

Phosphoric acid can be purified to produce technical or food grade acid or used as a raw material to produce phosphate salts.

Depending on the requested degree of purification, Prayon offers the following solutions:

• For a global purification of the Phosphoric Acid, Prayon offers the Membrane Technology – PUMA 
• For a specific removal of the Sulfates from the Phosphoric Acid, Prayon offers the Desulfation process 
• For a specific removal of the Heavy Metal from the Phosphoric Acid, Prayon offers the Heavy Metals Removal processes 

Our technologies enable to recycle Spent Phosphoric Acids.