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WWW.PRAYON.COM

The mission of

Prayon Technologies (PRT)

is to expand, promote and sell the expertise and processes

developed by our Group. PRT also supplies consultancy and support services.

PRT has over 60 years’ experience in designing and operating phosphoric acid manufacturing units.

Over 50% of the world’s phosphoric acid is currently manufactured by plants that use Prayon technology.

PRT’s main areas of activity are:

PROCESS LICENSING

Phosphoric acid production

(DH, CPP, PH1, PH2, DA-HF processes)

Phosphoric acid concentration

Fluorine recovery

Gas scrubbing

Phosphoric acid purification

Gypsum purification

Uranium extraction

from phosphoric acid

CONSULTING

Technical support for existing units

Phosphate rock evaluation

KNOWLEDGE MANAGEMENT

Operators training

Process simulator

Profitability improvement by knowledge

transfer

Management of knowledge developed

internally

DA-HF (DI ATTACKAND HEMI FILTRATION)

The Prayon DA-HF process for producing

phosphoric acid by sulphuric acid attack

of natural phosphate rock is a modern

process leading to high P

2

O

5

yield and

giving, as a by-product, hemihydrate cal-

cium sulphate.

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TECHNOLOGIES

C ULEUR 3

DÉGRADÉ