Single Super-Phosphates (SSP) and Triple Super-Phosphates (TSP) Powder
Single and Triple Super Phosphate Powder Plants Technology
Desmet Ballestra offers plants based on technology developed in cooperation with Industrie
Ballestra know-how includes Single Super Phosphate Powder (P-SSP) and Triple
Super Phosphate Powder (P-TSP) Plants with a wide range of production
capacities. The P-SSP/P-TSP productions starts from Phosphate Rock and Sulphuric
Reaction between the feedstocks is carried out inside a reactor of proprietary
design. Depending on the size of the plant, two reactor types are available:
Kuhlman-Den type, recommended for SSP/TSP low capacity reactors.
Broadfield-Den , recommended for SSP/TSP high capacity reactors.
These reactor design grants several advantages:
Product leaving the reaction phase is in powder form, without formation of
granules or lumps
The reaction section can be fully emptied at the end of a shift or
High retention time of the product in the reaction section, granting easy
operation on downstream SSP handling devices
Possibility to have in-line inspection of the reaction section by means of
manholes installed on the fixed hoods
Low mechanical complexity
Easy construction and maintenance of the reactions fumes/gases sealing
No presence of internal anti-fouling devices.
The Kuhlman-Den reactor can be fed directly with concentrated sulphuric acid,
avoiding the acid dilution and almost all the whole waste liquor stream from the
scrubbing system can be recycled to the reactor, therefore nearly eliminating
the necessity of its disposal.
Environmental impact control, by means of a triple-stage scrubbing
system, to contain the plant emissions to the minimum level required by the most
stringent laws and standards.