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GOAL

Responsible production of polyphosphoric acid -

reducing its carbon footprint

:

• by reducing energy consumption per tonne produced;

• using a much more compact system than the best technologies

available today.

PHOSPHATE

ROCK

REDUCTION

ACIDIC

DIGESTION

PURIFICATION

PRAYON

TECHNOLOGY

TECHNOLOGY

AVAILABLE

IN THE US

OXIDATION

CONTROLLED

HYDRATION

WET

PROCESS

REACTOR

ELECTRIC FURNACE

SOLVENT EXTRACTION

POLYPHOSPHORIC ACID

POLYPHOSPHORIC ACID

H

3

PO

4

H

2

SO

4

Gypsum

Pollution

C

Air

H

2

O

KWh

Purified

acid

Depending on the water

quantities

H

3

PO

4

P

2

O

5

P

4

THERMAL

PROCESS

2

1

2A

2B