Our Facility
India's Largest Single-Site PA Complex
Five production plants. One integrated campus. 270,000 MTPA of phthalic anhydride from Taloja, Maharashtra.
Our Facility
Five production plants. One integrated campus. 270,000 MTPA of phthalic anhydride from Taloja, Maharashtra.
Taloja Campus
IGPL operates five phthalic anhydride plants at a single integrated campus in Taloja MIDC, Raigad District, Maharashtra. The concentration of capacity on one site is unique in India and rare globally — it means unified utilities, shared feedstock delivery, consolidated logistics, and a process team with deep expertise across every stage of the production cycle.
Each PA plant runs on the Wacker Chemie Von-Heyden Low Energy Process — catalytic vapour-phase oxidation of ortho-xylene over a vanadium pentoxide catalyst. The plants are linked to four Maleic Anhydride recovery units and one Benzoic Acid recovery system, ensuring byproduct streams are fully captured rather than wasted.
The Diethyl Phthalate plant adds downstream esterification capability — converting PA directly to DEP on the same site. This end-to-end integration from feedstock receipt to finished product is what makes the Taloja campus a self-contained chemical system rather than a commodity production site.
Technology
Ortho-xylene is oxidised with air over a V₂O₅/TiO₂ catalyst in a fixed-bed tubular reactor. The exothermic reaction is controlled by a molten salt cooling system.
The Von-Heyden process is optimised for yield and selectivity. PA purity reaches ≥99.8% through a two-stage distillation and purification system.
Steam generated by the exothermic reaction is recovered for process heating and utility purposes, reducing overall energy consumption per tonne of output.
Why Our Manufacturing Matters
270,000 MTPA. Single-site concentration means no logistics complexity between plants.
Five independent PA production units. Maintenance on one does not stop supply.
30+ years of operating the Von-Heyden process on the same site. Technical knowledge is embedded, not hired.
MA and BA are fully recovered — not flared or wasted. This improves economics per tonne and reduces environmental load.
50 km from JNPT/Nhava Sheva. Road and rail access for domestic delivery across Maharashtra and Gujarat.
DEP esterification on-site extends the value chain from basic PA to specialty downstream without additional transport.
Commercial Significance
Phthalic anhydride is a heavy, bulk chemical that does not travel well. Freight costs, handling complexity, and delivery continuity all favour domestic production close to consumption centres. India's plasticiser, coatings, and resin manufacturers depend on reliable, uninterrupted PA supply to run their own operations.
IGPL's single-site concentration of capacity means customers deal with one source, one quality system, and one logistics chain. Five independent production lines provide supply continuity even during scheduled maintenance — a practical advantage that matters more than theoretical capacity numbers.
For investors, the manufacturing base represents a capital-intensive, deeply integrated asset with operating leverage characteristics: fixed costs are spread across India's largest single-site capacity, and byproduct recovery adds incremental margin from the same feedstock input.
Facility
Aerial view of the Taloja campus
Process infrastructure
PA production systems
Location
Maharashtra's major industrial belt. Well-served road and rail infrastructure. Close to major downstream customers in the Mumbai metropolitan region.
Direct access to Jawaharlal Nehru Port, India's largest container gateway. Enables cost-efficient raw material imports and product exports.
Proximity to Rasayani and Roha industrial clusters — O-xylene suppliers, packaging suppliers, and downstream chemical manufacturers.
Our technical and commercial teams can discuss process specifics, quality systems, and supply logistics.