Detailed Project Report (DPR) on Di-Calcium Phosphate (Powder)

Dicalcium phosphate is mainly used as a source of calcium and phosphorus, particularly in dietary and animal-feed applications. Its nutritional composition makes it suitable where these minerals need to be incorporated into a formulation. The report specifically identifies animal-feed-grade Di-Calcium Phosphate as a product manufactured from treated wet-process acid with fluorine reduced to an acceptable level.

Dicalcium phosphate can be produced by acidifying phosphate materials and subsequently neutralizing the resulting phosphate solution. Rock phosphate contains calcium phosphate in the form of tricalcium phosphate, which can react with mineral acids to produce soluble phosphate compounds. In the process described in the report, monocalcium phosphate solution is treated with lime to obtain dicalcium phosphate, while calcium chloride is formed as a by-product. Purified phosphoric acid can also be neutralized to produce dicalcium phosphate.

Fluorine reduction is important because animal-feed-grade dicalcium phosphate must have fluorine controlled to an acceptable level. Wet-process phosphoric acid can contain fluorine compounds originating from phosphate rock. The report therefore specifies treatment of wet-process acid to reduce fluorine before producing animal-feed-grade Di-Calcium Phosphate. Effective process control and quality testing are important for maintaining the required product characteristics and suitability for its intended application.

The proposed project is intended to install facilities for producing 7500 MT/Year of Di-Calcium Phosphate (Powder), with the cost-estimation section specifying a plant capacity of 25 Ton/Day. The project is described as a new production facility. Detailed planning would involve process design, equipment selection, utilities, environmental systems, quality control, plant layout, and implementation considerations.

Phosphate sources and process chemicals are the principal materials associated with dicalcium phosphate production. The report identifies rock phosphate, hydrochloric acid, mineral acids, lime, and phosphoric acid in the described production routes. The exact raw-material selection depends on the process configuration and product grade. For animal-feed-grade production, the treatment of wet-process acid to reduce fluorine is an important process consideration before the final dicalcium phosphate product is obtained.

Environmental and safety management should address process effluents, wastewater, waste generation, chemical handling, occupational exposure, and process-related risks. The report includes dedicated sections covering ETP facilities, sewage and wastewater effluent, waste management, green belt development, anticipated environmental impacts, mitigation measures, HSE requirements, occupational safety, environmental and safety liability, and potential risks. Appropriate engineering controls, operating procedures, monitoring, personal protective equipment, and emergency arrangements should be incorporated into project planning.