Vichem offers a complete phosphoric acid plant including Engineering, Purchasing, and Commissioning. Every phosphate rock has its own behaviour during the reaction, filtration and concentration steps; therefore, plants to produce phosphate products must be designed taking into account the nature of the phosphate to be used.

Our company is able to design the appropriate plant, which will give the highest efficiency based on the analysis of the raw phosphate rock.

Vichem is very familiar with all available phosphate rock mines. Most of the mines are located in:

  • Morocco
  • Senegal
  • Syria
  • Jordan
  • Iran
  • Russia
  • Brazil
  • USA
  • South Africa
  • Etc..

What is phosphoric acid?

Phosphoric Acid, chemical formula H3PO4, is the base of industrially important compounds called phosphates. At room temperature, phosphoric acid is a crystalline material with a specific gravity of 1.83. The solid melts at 42.35ºc.
Phosphoric acid is usually stored and sold as a solution.
Phosphoric acid is mainly produced by creating a reaction between the calcium phosphate rock and sulphuric acid, and then filtrating the resultant slurry to separate the calcium sulphate (Gypsum) from the phosphoric acid solution (Wet Process).

It can be prepared also by burning phosphorus and treating the resulting oxide with steam (Thermal Process).

Why is phosphate so important?

The element P is present in every living cell, whether plant or animal.
The light energy captured by photosynthesis would not support any of the necessary plant functions if compounds that contain P were not present as "energy packaging" structures. Phosphorus is indeed energizer in plant production.
In animal subjects, it appears in the bones and participates in carbohydrate assimilation. It is to be found in most foods. For plants, Phosphate compounds carry the energy produced by photosynthesis, hence phosphorus is used in the manufacturing of fertilizers.

What are the different phosphoric acids?