325 Mesh Wood Based Powder Activated Carbon for Pharmaceutical Intermediate Purification
Product Introduction
Wood-based powdered activated carbon is specifically engineered for the refining and purification of pharmaceutical intermediates in chemical synthesis and fermentation processes.
It effectively removes colored substances, trace catalysts, residual organic impurities, and by-products from reaction or fermentation solutions, ensuring high purity, stability, and compliance with stringent pharmaceutical standards.
Manufactured from selected hardwood raw materials and activated under precisely controlled conditions, this 325 mesh fine-grade carbon provides a large surface area, high micropore volume, and uniform particle size distribution — delivering exceptional adsorption efficiency and fast filtration performance in pharmaceutical intermediate refining.
| Specification | Value |
| Mesh Size | 325 |
| Iodine Number, mg/g | 1100-1200 |
| Methylene Blue Adsorption, mg/g | 190 (min) |
| Molasses Number | 150 (max) |
| Ash, % | 2.0 (max) |
| Moisture, % | 8 (max) |
| pH (10% Suspension) | 5-7 |
| Bulk Density, g/L | 320-450 |
| Iron (Fe), % | 0.02 (max) |
| Sulfate (SO₄²⁻), % | 0.05 (max) |
| Chloride (Cl⁻), % | 0.05 (max) |
| Heavy Metals (Pb), ppm | 30 (max) |
Note: Specifications and particle sizes can be customized according to customer requirements.
Features·
High-Purity Adsorbent: Ultra-low ash and metal ion content prevent contamination during pharmaceutical synthesis or crystallization.
Superior Decolorization and Impurity Removal: Efficiently adsorbs trace organics, catalysts, and colorants from intermediate solutions.
Fine Particle Size (325 Mesh): Ensures rapid dispersion, short adsorption time, and smooth filtration for high-viscosity solutions.
Stable and Consistent Quality: Produced under strict process control to ensure reliable performance in each purification batch.
Pharmaceutical Compliance: Manufactured according to GMP-aligned quality management for use in pharmaceutical-grade and intermediate purification processes.
Applications
Pharmaceutical Intermediate Refining: Purification and decolorization of key intermediates used in antibiotics, APIs, and synthetic drugs.
Catalyst and Residue Removal: Adsorption of trace metal catalysts and reaction by-products from organic synthesis.
Fermentation Broth Purification: Decolorization of fermentation-derived intermediates in the production of amino acids, vitamins, and enzymes.
High-Value Fine Chemicals: Used in purification of biochemicals, peptides, and specialty intermediates where purity is critical.



Manufacturing Process
High-Quality Hardwood Feedstock: Derived from renewable wood with low ash and mineral content for superior purity.
Controlled Carbonization: Optimized temperature curve maintains pore integrity and maximizes micropore formation.
Steam Activation: Tailored activation profile produces a high micropore-to-mesopore ratio suitable for small-molecule adsorption.
Multi-Stage Acid Washing and Rinsing: Removes metallic impurities, soluble salts, and inorganic residues, achieving pharmaceutical-grade purity.
Strict Quality Assurance: Each batch undergoes testing for iodine value, ash, heavy metals, and microbiological safety to ensure consistent GMP-level quality.
Packaging Options
25kg Bags: Multi-layer kraft paper bags with PE inner liner, providing moisture resistance and easy handling.
500kg Jumbo Bags: Ideal for large-scale pharmaceutical or fine chemical production environments.
Customized Packaging: Available upon request to meet customer-specific process, safety, or regulatory requirements.