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Ammonia catalysts, highly efficient and sustainable performance

Ammonia catalysts must enable more efficient ammonia synthesis today than ever before. With a growing demand on ammonia for the production of chemical fertilizers, and increasing volatility of feedstock prices and energy resources, ammonia producers need reliable solutions to succeed in this highly competitive market.


Clariant’s ammonia catalysts are proven to increase efficiency and productivity while minimizing costs. They offer superior performance to maximize ammonia yields, and allow sustainable management of resources to reduce energy consumption in ammonia production.

We offer a complete range of ammonia process catalysts, and support you with comprehensive technical services from plant design or upgrades to ensuring optimal catalyst performance. Clariant collaborates with renowned technology partners, such as KBR and Casale, to provide you with the ideal solution based on your specific requirements.

  • AmoMax 10 Plus
    AmoMax® 10 Plus is Clariant's latest generation of wustite-based ammonia synthesis catalysts. The catalyst is based on the proven ammonia synthesis catalysts AmoMax 10 but with an improved promoter set. The optimization of concentration and ratio of the promoter system leads to a higher activity, higher stability and a faster startup of AmoMax 10 Plus. The higher activity allows an operation with a higher per pass conversion and lower loop pressure, which can be utilized for a higher ammonia production and/or for energy savings. The higher stability and water resistance increases the catalyst lifetime and enables a faster catalyst reduction.
  • AmoMax-Casale
    AmoMax®-Casale is a new ammonia synthesis catalyst jointly developed by Casale and Clariant particularly for use in Casale ammonia converters. AmoMax-Casale is a customized evolution of the well-known, wustite-based catalyst, AmoMax® 10. While retaining the same superior resistance to aging, poisoning, and mechanical strength, AmoMax-Casale is significantly more active. With an optimized promoter package, AmoMax-Casale provides a larger active surface area and improved diffusion properties, resulting in a 30 % higher efficiency index compared to the wustite-based reference. This allows to reduce the loop recycle rate and the loop pressure and/or to increase the ammonia production. By optimizing the plant’s overall efficiency, the customers can generate higher profitability by either benefiting from energy savings and reducing the CO2 footprint or monetizing its increased ammonia production.
  • AmoMax 10
    AmoMax® 10 is a wustite-based ammonia synthesis catalysts with a unique promoter system that provides much higher activity and stability than magnetite-based catalysts. This improves conversion at low operating temperatures and at more thermodynamically favorable conditions, thus raising ammonia yields. Due to reduced loop recycles and loop pressure, it also saves energy and reduces CO2 emissions.

Clariant’s comprehensive ammonia catalysts portfolio

Our services

ActiSafE service

Increase your ammonia production

ActiSafETM, the latest innovative technology, measures water vapor formation at the outlet of the converter during ammonia catalyst activation and provides advantages, such as continuous real-time measurements of the water vapor and ammonia concentration.

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Clariant Photo ReforSafE Monitoring Teaser 202211

ReforSafE service

Our eye inside your furnace

Clariant Catalysts provides high-tech monitoring and catalyst solutions to help Syngas plants to perform at their full potential to be competitive. Our ReforSafETM is an advanced technical service solution for a comprehensive reformer survey and performance optimization.


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