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Widest portfolio of adsorbent technologies for a broad spectrum of applications. Catalytic converters for aircraft cabins and fuel inerting. Cathode materials, e-mobility, next-generation technology solutions. Air cleaners that help to improve indoor air quality. Solutions for the most challenging applications. BASF maintains significant diesel research and development facilities around the world. These facilities are being used to develop the technologies needed to meet the extremely low emission levels called for in new emissions regulations. As the global leader in mobile emissions catalysts, BASF has developed a number of specialized catalyst technologies. BASF offers a "full loop" of precious metals products & services. Catalysts for chemical, petrochemical, and refining industries. We offer precious metals supply and full-loop management services, including refining to recover precious metals from spent catalysts. The development of fuels and chemicals based on biological feedstocks is critical to a sustainable future and BASF is proud to provide the catalysts to support this industry. BASF has established itself as a front-runner in this field by becoming the global market leader for sodium methylate, the homogeneous catalyst used for biodiesel production. BASF catalyst technologies play a crucial role in the manufacture of a wide range of fine and specialty chemical products including flavor and fragrances, herbicides and pesticides, resins, pigments and dyestuffs, pharmaceuticals, and plastic and rubber additives. Chemistry plays an important role in the transformation of vegetable oils to products for our daily life. Catalysts are an indispensable tool to make this transformation possible. BASF offers more than 125 years of experience with oxidation catalysts. Each percent of catalyst selectivity advantage creates additional value and reduces COx emission. Solutions for power plants, process industries and more. BASF Catalysts has long been a leader in the development of highly active, robust and selective catalysts and related technologies for the destruction of volatile organic compounds (VOC). Thermocouples, pyrometers - insights for higher yields. Our contact temperature probes include high temperature thermocouples, platinum thermocouples, noble metal thermocouples, thermocouples for the glass industry, profile and spike thermocouples for diffusion furnaces, high temperature industrial thermocouples, furnace thermocouples, and high temperature thermocouple wire and cable. A specialty of BASF for many years is the glass thermocouple. We have grown with the industry and, as glass technology requirements have expanded and changed over the years. Offering excellent accuracy, resolution, repeatability, and stability, EXACTUS® optical pyrometer technology provides significant performance advantages in non-contact temperature measurement in a practical, rugged and user-friendly design.

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Phthalic Anhydride Catalysts

BASF provides phthalic anhydride (PA) catalysts for the production of phthalic anhydride from the oxidation of o-xylene and naphthalene/mixed feed. BASF has been producing PA for over 140 years and researching PA catalysts for more than 120 years. The total PA at BASF’s Ludwigshafen (Germany) site since 1873 is more than 4.0 million tons.

Advantages of BASF as a Phthalic Anhydride Catalyst Supplier

BASF offers over 140 years experience in Phthalic Anhydride (PA) production and 120 years in PA catalysts research. This legacy forms a strong foundation for continuous innovation and product improvement. Products and services are continually reviewed for alignment with our customers’ needs through regular BASF Phthalic Anhydride Customer Forum meetings.

Delivery of our product to the customer site is just the beginning of our offering. BASF stands behind its products and, through our technical service representatives in Asia, Europe and America, ensures that our products perform and deliver value. We innovate to make our customers successful.

Expert Technical Service

Our technical service staff has extensive professional experience in Phthalic Anhydride catalysts, including hands on operational expertise in the areas of supervision, start up assistance and catalyst performance optimization. BASF has more than 80 years of experience in the loading and start up supervision of Phthalic Anhydride catalysts.

  • O-xylene and naphthalene/mixed feed oxidation in fixed bed process
  • O-xylene loadings up to 100 g/Nm³
  • Supply of complete catalyst filling and measurement equipment on loan basis, including 5-tube, 10-tube and 20-tube catalyst filling machines
  • Optimization of catalyst operation condition using portable COx analyzers
  • Verification of air flow measurements by total combustion
Literature Library

Literature Library

Datasheets and brochures can be found here.

Value Added Customer Service

From order placement through invoicing, BASF’s Customer Service functions as the customer’s voice by:

  • Assigning a primary customer service representative
  • Providing a Customer Service Network with 3 central hubs
  • Addressing customer concerns in the language of the customer

Naphthalene/Mixed Feed

O4-29HFII Catalyst Advantages

  • Improved 4 layer catalyst generation
  • Higher yield vs. O4-29HF
  • Up to 65% o-xylene in feed

O4-35 Catalyst Advantages

  • Latest generation 5-layer catalyst system
  • Catalyst geometry adjusted for maximum performance
  • Superior PA quality

O-Xylene Feed

O4-66 Catalyst Advantages

  • Improved 4-layer catalyst generation
  • Improved stability of 1st catalyst layer
  • Designed for harsh operation conditions
  • Higher Phthalic Anhydride yield in 2nd and 3rd operation year

O4-88 Catalyst Advantages

  • Higher yield vs. O4-66
  • 3 selective layers
  • Patented new active mass
  • Easy start-up behavior

O4-888 Catalyst Advantages

  • 5 layer catalyst system
  • Improved selective layers and active layers
  • Excellent product quality

Fields of Application