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Platinum group metal catalysts are widely used in chemical processes for reactions ranging from gas phase oxidation through selective hydrogenation of chemical, petrochemical, and pharmaceutical feedstocks to fuel cell power generation. All six of the platinum group elements have significant catalytic properties; however, platinum, palladium, rhodium, and ruthenium are the most widely used.

Although platinum group metals are more expensive in initial cost than base metal catalysts, they often prove to be more reactive and selective, and require less severe reaction conditions. In addition, the spent catalyst can be recovered and the precious metal reprocessed into fresh catalyst.

Johnson Matthey has served the platinum group metals industry for over 200 years. With our considerable experience and expertise in the manufacture of catalysts and in catalyst technology, we welcome the opportunity to help develop new catalysts to meet your unique requirements and improve your processing.

Heterogenous Catalysts
The major factors affecting the properties of a heterogenous catalyst are the selection of the most appropriate support material and the location of the metal within the pore structure of the support. The most common types of powdered and particulate supports are:

  • Activated carbon
  • Alumina
  • Calcium carbonate
  • Barium sulfate
  • Alumina
  • Carbon

  • Platinum, 0.1% on 2-4mm alumina spheres
  • Platinum, 0.3% on 2.7-3.3mm (0.11-0.13in) alumina pellets, reduced
  • Platinum, 0.5% on 1.4-2.8mm (0.055-0.11in) alumina spheres, reduced
  • Platinum, 0.5% on 2.7-3.3mm (0.11-0.13in) alumina pellets, reduced
  • Platinum, 0.5% on granular carbon, reduced
  • Platinum, 10% on activated carbon paste, Type 128M
  • Platinum, 10% on activated carbon powder, standard, reduced, nominally 50% water wet
  • Platinum, 10% on activated carbon powder, standard, unreduced, nominally 50% water wet
  • Platinum, 10% on alumina, reduced
  • Platinum, 10% on carbon, dry
  • Platinum, 1% on 2.7-3.3mm (0.11-0.13in) alumina pellets, reduced
  • Platinum, 1% on activated carbon paste, 1R18MA
  • Platinum, 1% on activated carbon paste, Type 163
  • Platinum, 1% on activated carbon powder, standard, reduced, nominally 50% water wet
  • Platinum, 1% on activated carbon powder, standard, unreduced, nominally 50% water wet
  • Platinum, 1% on gamma alumina powder, reduced
  • Platinum, 1% on granular carbon, reduced, nominally 50% water wet
  • Platinum, 1% on polyethyleneimine/SiO<sub>2</sub>
  • Platinum, 1% on polyethyleneimine/SiO<sub>2</sub> powder
  • Platinum, 2% on 2.5mm alumina trilobes
  • Platinum, 3% on activated carbon powder, standard, reduced, nominally 50% water wet
  • Platinum, 3% on activated carbon powder, standard, unreduced, nominally 50% water wet
  • Platinum, 3% on carbon paste, B103032-3
  • Platinum, 5% on activated carbon paste, B103032-5
  • Platinum, 5% on activated carbon paste, Type 128M
  • Platinum, 5% on activated carbon powder, sulfided, 0.5% S (as sulfide)
  • Platinum, 5% on activated carbon powder, Type B105022-5, standard, reduced, nominally 50% water wet
  • Platinum, 5% on activated carbon powder, Type B109032-5, standard, reduced, nominally 60% water wet, sulfided
  • Platinum, 5% on alumina paste, 5R94
  • Platinum, 5% on alumina powder, reduced
  • Platinum, 5% on carbon, dry
  • Platinum, 5% on carbon paste, B501018-5
  • Platinum, 5% on carbon paste, B501032-5
  • Platinum, 5% on carbon, sulfided, B106032-5, nominally 50% water wet
  • Platinum, 5% on graphite, Type 286
  • Platinum, 5% on graphite, Type 287
  • Platinum(IV) nitrate, solution, Pt 15% w/w
  • Platinum, nominally 10% on carbon black, HiSPEC® 2000
  • Platinum, nominally 20% on carbon black, HiSPEC® 3000
  • Platinum, nominally 30%, Ruthenium, nominally 15% on carbon black, HiSPEC® 7000
  • Platinum, nominally 40% on carbon black, HiSPEC® 4000
  • Platinum, nominally 40%, Ruthenium, nominally 20% on carbon black, HiSPEC® 10000

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