HeraSelect® - Precious Metal Catalysts on Activated Carbon
More than 80 percent of all reactions in the chemical industry are carried out with the help of catalysts. The Heraeus HeraSelect® portfolio is particularly designed for the hydrogenation of organic intermediates in the production of active pharmaceutical ingredients (APIs), fine and agro chemicals, flavor and fragrances as well as in the production of chemicals from renewable feedstocks.
HeraSelect® Precious Metal Catalysts on Carbon - Product Portfolio
With products that meet high quality standards, Heraeus helps to achieve continuous production processes at its customers and thus supports them to strengthen their competitiveness. Profit from a broad portfolio of Precious Metal Catalysts on Carbon.
Impressive results can often be achieved with a standard catalyst product. For Customer-specific solutions that go beyond a standard product an individualized catalyst adaption can be necessary. In such cases, Heraeus works closely with its customers to develop tailor-made solutions. This involves testing and extensive characterization of the produced catalyst materials.
Activated Carbon as Catalyst Support
Its outstanding chemical and physical properties make activated carbon the material of choice as catalyst support for many applications. Carbon materials differ by origin (e.g. wood, peat, or coconut shell), as well as by pre-treatment method (e.g. steam activated, chemically activated, or for improved purity, acid-washed). The resulting surface chemical characteristics play an important role in the quality of the final catalyst.
HeraSelect® - Precious Metal Catalysts on activated carbon are available on different carbon shapes
- Powder
- Strands
- Granules
- (Micro-)Spheres
- Others
Representative Catalytic Conversions From Our Application Library
Hydrogenation of Pyridines to Piperidines
(5% Pt/C, reduced)
- Surface Area BET: 900 – 1000 m²/g
- Particle Size Distribution (D90): 75 – 85 μm
- Pore Volume: 1.9 – 2.1 ml/g
- Form: Black fine powder, 50 w% water content
Nitroaromatic Compound to Aromatic Hydroxylamine
(5% Pt/C, reduced)
- Surface Area BET: 800 – 1000 m²/g
- Particle Size Distribution (D90): 75 – 85 μm
- Pore Volume: 1.1 – 1.5 ml/g
- Form: Black fine powder, 50 w% water content
Reductive Amination of Aliphatic Ketones
(5% Pt/C, reduced)
- Surface Area BET: 800 – 1000 m²/g
- Particle Size Distribution (D90): 75 – 85 μm
- Pore Volume: 1.1 – 1.5 ml/g
- Form: Black fine powder, 50 w% water content
Alkene Hydrogenation
(10% Pd/C, reduced)
- Surface Area BET: 800 – 1000 m²/g
- Particle Size Distribution (D90): 100 – 115 μm
- Pore Volume: 1.1 – 1.5 ml/g
- Form: Black fine powder, 50 w% water content
Nitroso Hydrogenation
(5% Pd/C, unreduced)
- Surface Area BET: 1000 – 1100 m²/g
- Particle Size Distribution (D90): 75 – 85 μm
- Pore Volume: 2.0 – 2.2 ml/g
- Form: Black fine powder, 50 w% water content
Debenzylation
(5% Pd/C, unreduced)
- Surface Area BET: 800 – 1000 m²/g
- Particle Size Distribution (D90): 100 – 115 μm
- Pore Volume: 1.1 – 1.5 ml/g
- Form: Black fine powder, 50 w% water content
Hydrogenation of an Aliphatic Aldehyde
(5% Ru/C, unreduced)
- Surface Area BET: 800 – 1000 m²/g
- Particle Size Distribution (D90): 75 – 85 μm
- Pore Volume: 1.1 – 1.5 ml/g
- Form: Black fine powder, 50 w% water content
Ring Hydrogenation
(5% Ru/C, unreduced)
- Surface Area BET: 800 – 1000 m²/g
- Particle Size Distribution (D90): 75 – 85 μm
- Pore Volume: 1.9 – 2.1 ml/g
- Form: Black fine powder, 50 w% water content
Polymer-Based Activated Carbon Microspheres
Polymer-based spherical activated carbon catalysts combine the advantages of a powder (very high BET surface area of approx. 1000 m²/g) with the positive properties of a stable bulk material (a high crushing strength). Carbon microsphere-based catalysts can be employed both in batch and continuous reactor operations.
- Up to 2.5 % precious metal loading (Pt or Pd)
- PM surface area: 0.4 – 2.5 m2/g up to 3 m2/g
- Different sizes between 300 – 600 μm
- Bulk density: approx. 600 g/L
- pV between 0.08 and 0.18
- High crushing strength
- BET surface area of approx. 1000 m2/g
- Catalyst pH between 4 – 6
Applications of HeraSelect® - PM/C Catalysts
Each chemical reaction has its own chemical and physical constraints. The experts of Heraeus will help you in identifying, optimizing and developing catalysts that are suited to your particular conditions.
PM/C materials can catalyze a vast range of chemical reactions. The most important reactions, as well as appropriate catalysts, are shown in the following table:
Sample Kit – Test Before You Commit
Heraeus has developed an extensive portfolio of proprietary catalysts, designed for a variety of challenging catalytic reactions. To help identify the right catalyst for your specific process, Heraeus offers catalyst sample kits.
There may already be a catalyst that suits your process, or it could serve as the foundation for an improved, tailor-made catalyst adapted to your requirements.
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