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Highly selective Brønsted acid catalyst optimized for esterification and transesterification reactions.
Thermally stable up to 200 °C, enabling robust performance in elevated-temperature batch and continuous processes.
Low volatility and non-corrosive to standard stainless-steel reactor materials (e.g., SS316).
Water-tolerant formulation maintains activity in moisture-containing feedstocks without rapid deactivation.
Easily separable via filtration or extraction—no residual metal contamination in final product.
Biodiesel production via transesterification of vegetable oils and animal fats with methanol.
Synthesis of biodegradable plasticizers such as dioctyl adipate (DOA) and triethyl citrate (TEC).
Production of polyester resins and alkyd binders for industrial coatings and inks.
Catalysis of lactone ring-opening polymerization for specialty polyesters.
Manufacture of fragrance esters and pharmaceutical intermediates requiring mild, controllable acidity.
| Chemical Type | Sulfonated aromatic polymer (solid acid) |
| Product Form | Free-flowing granular solid |
| Appearance | Off-white to light tan beads, 0.5–2.0 mm diameter |
| Acid Capacity | ≥4.2 mmol H⁺/g (by NaOH titration) |
| Moisture Content | <1.5 wt% (Karl Fischer) |
| Thermal Stability | Stable ≤200 °C (TGA onset) |
| pH (1% aqueous slurry) | ~1.8–2.2 (measured at 25 °C) |
| Primary Applications | Esterification, transesterification, condensation polymerization |
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
