Description

Phosphate Rock And Phosphorite, Calcined is a critical industrial mineral product, processed through calcination to enhance its reactivity and phosphorus content. This material serves as a fundamental raw material for the production of phosphorus-based chemicals and fertilizers. It is essential for industries including agriculture, chemical manufacturing, metallurgy, and environmental treatment, where a consistent and high-grade phosphate source is required for process efficiency and product quality.

Application

• Primary Raw Material for Phosphoric Acid Production: The dominant use, where it is reacted with sulfuric acid to manufacture wet-process phosphoric acid.
• Direct Application Fertilizer & Soil Amendment: Used in finely ground form to slowly release phosphorus and correct soil acidity in agricultural applications.
• Feedstock for Elemental Phosphorus & Fine Chemicals: Serves as the key ingredient in electric furnace production of yellow phosphorus, a precursor for high-purity phosphates, flame retardants, and food additives.
• Metallurgical Flux Agent: Employed in steelmaking and non-ferrous metal processing to remove impurities and control slag composition.
• Component in Animal Feed Supplements: Provides essential dietary phosphorus and calcium for livestock and poultry after appropriate processing.
• Water Treatment & Detergent Builder: Used in certain water softening processes and as a source of phosphate in detergent formulations (where regulations permit).
• Ceramics & Glass Manufacturing: Acts as a flux and opacifier in the production of specialty glasses, ceramics, and enamels.

Basic Information

Product Name	Phosphate Rock And Phosphorite, Calcined
CAS No.	65996-94-3
Molecular Formula	Complex mineral mixture; primarily Ca5(PO4)3(OH,F,Cl)
Molecular Weight	N/A (Mineral Mixture)
Synonyms	Calcined Phosphate Rock; Calcined Phosphorite; Calcined Apatite; Thermally Treated Phosphate Rock; Burnt Phosphate; Fluorapatite, calcined; Chlorapatite, calcined; Hydroxyapatite, calcined
EINECS	266-104-8

Quality Control

Our Calcined Phosphate Rock is sourced and processed under strict quality protocols to ensure batch-to-batch consistency and performance. Quality is assessed against key parameters including P2O5 content, calcium oxide (CaO) levels, and impurity profiles (e.g., silica, iron, aluminum oxides, fluorine). We provide Certificates of Analysis (COA) with each shipment, detailing the chemical and physical specifications. Our quality management system supports traceability and compliance with relevant industrial and agricultural standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated warehouse. Keep away from incompatible materials such as strong acids. The product is generally stable under recommended conditions but is hygroscopic (moisture-sensitive); prolonged exposure to humid air should be avoided to prevent caking.

Specification

Item	Specification
Appearance	Gray to brown powder or granular solid
Phosphorus Pentoxide (P2O5)	≥ 30%
Calcium Oxide (CaO)	40 - 50%
Fluorine (F)	≤ 3.5%
Silicon Dioxide (SiO2)	≤ 10%
Iron & Aluminum Oxides (R2O3)	≤ 4%
Loss on Ignition (LOI)	≤ 2%
Particle Size (Typical)	As per customer requirement (e.g., -100 mesh)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.