Ingetecsa has built up a unique, in-depth experience in the Feed and Food phosphates with MCP, DCP, TCP and STPP.
We can offer the complete basic and detail engineering and also manufacture, supply and install the equipment for calcium phosphates.
Within the fertilizer and phosphate industries, calcium phosphates form an interesting niche market. They are the most widely used phosphate supplements, supply essential minerals for the development of strong teeth and bones in livestock, poultry, and pets.
Feed-grade calcium phosphates include:
- Monocalcium phosphate (MCP)
- Dicalcium phosphate (DCP)
- Tricalcium phosphate (TCP)
Apart from as an animal feed supplement, calcium phosphates find their way also for instance in tooth paste, as texture enhancers, as sauce thickeners, as acidulates, as binders, etc. in food applications and the likes of industrial bakeries. Until now, only a minor fraction goes to pharmaceutical use.
Phosphate rock mining occurs all over the world. The largest reserves of high purity phos rock are in Morocco. The mined and crushed rock react together with sulphuric acid. Gypsum (phosphogypsum) and impurities then precipitate. Next is the acid de-fluorinisation, the de-arsenification and purification from heavy metals to obtain feed grade green or extra food grade white acid. The more rarely high purity white acid comes from elemental phosphorus rock in electric arc furnaces.
The acid and limestone react together to produce MCP, DCP and (rarely) TCP.
DCP production is also possible directly as a precipitate from attacking the phosphate rock with hydrochloric acid (substitution reaction). This niche process uses for instance waste hydrochloric acid from electrochemical plants / water dissociation. This DCP is mainly used for poultry feed, or further processed to feed grade MCP by adding phosphoric acid.