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O4-66

O4-66 is designed for the oxidation of o-xylene (o-x) to phthalic anhydride (PA) with up to 100 g/Nm3 o-x loading and 4.0 Nm3/hr/tube air flow rate.

Its outstanding features include high stability and excellent selectivity. O4-66 is a robust and durable catalyst, its improved 4-layer catalyst system guarantees safe operation, long catalyst lifetime and stable PA yield at harsh operation conditions with an exceptionally low salt bath temperature (SBT) increase rate. The formation of by-products, such as phthalide, is very low, which ensures good PA quality. O4-66 can be combined with a PA post reactor.

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BASF's Catalysts division is the world's leading supplier of environmental and process catalysts. The group offers exceptional expertise in the development of technologies that protect the air we breathe, produce the fuels that power our world and ensure efficient production of a wide variety of chemicals, plastics and other products, including advanced battery materials. By leveraging our industry-leading R&D platforms, passion for innovation and deep knowledge of precious and base metals, BASF's Catalysts division develops unique, proprietary solutions that drive customer success.