The W.F. McDonald / M Chemical Company, founded in 1966, supplies a variety of chemical additives, adsorbents and catalysts to the petrochemical industry.

Inert Catalyst Bed Support Media

• Duramax® P400 Support Balls
• Duramax 99 - High Purity alumina bed support/topping balls
• Activated Alumina Bed Support (Duramax-AAS)
• Active Bed Supports (NiMo/other)

Catalyst Bed Topping/Grading & Filtration Products

• MHT-10 Inert bed topping (Haldor Topsoe TK-10 style)
• MCR-85 Inert bed topping (Criterion 855MD style)
• MAB-55 Inert bed topping (Albemarle/Axens style)
• AFS
• Grading Rings – inert, porous and/or active (NiMo/other) for hydrotreater grading

Purification Catalysts / Adsorbents

• Sulfur Species Removal
• Chloride Removal
• Arsenic Removal
• Fluoride Removal
• Mercury Removal
• Vanadium Removal
• Oxygen Removal
• Silica Removal

Merox / Mericat Catalysts

• ARI-100EXL, ARI-100L, ARI-120
• CAC-120S : catalyst impregnated carbon for fixed bed Merox/Mericat
• Injection Units for 'merox' catalysts

Other Catalysts

• Solid Phosphoric Acid (SPA) catalysts
• Ammonia Destruction Catalyst
• Tail Gas Unit Catalysts
• Syngas Catalysts
  • Desulfurization
  • Steam Reforming
  • Shift Catalysts
  • Methanation
  • Ammonia Destruction

Tower Packing Products

• Raschig Rings, Pall Rings, “IMTP style” Rings (Ceramic, Metal, Plastic)
• Saddles, Beryl Saddles (Ceramic, Metal, Plastic)
• Other shapes (Ceramic, Metal, Plastic)
• Carbon/Graphite Raschig Rings

Adsorbents

• Molecular Sieves (3A, 4A, 5A, 13X)
• Activated Alumina
  • Desiccant Driers
  • Chloride Guard
  • HF Alky
  • Claus Catalyst
  • Active Bed Supports
• Silica Gel

Activated Carbons

• Granular & Pelletized Activated Carbons
• Anthracite Bed Support
• Merox / Minaulc Carbon
• Sulfur Absorbing Carbon - Copper Impregnated
• Mercury Removal Carbon

Gas Odorants

• Ethyl Mercaptan (LPG odorant)
• Mercaptan/Sulfide blend odorants for Natural Gas
• DMDS & DMS (catalyst sulfiding agents)

Dyes

• Unisol Red Dyes for Non-Tax and High Sulfur Diesel
• Unisol Dyes for Lubes, Greases, Fuels
• Invisible markers for theft detection
• Flourescent dyes for leak detection, pipeline interface, etc.

Performance Diesel Additives

• Infineum Lubricity Additives for Diesel Fuels
• Anti Static Additives
• Pour point and Cold Flow improvers
• Cetane Improvers

Environmental Products

• Sorbent Pads, Booms, Rolls, Socks
• Granular Adsorbents (clay, diatomaceous earth, cellulose, peat moss, etc.)
• Spill Kits, Secondary Containment Products (overpack drums, spill pallets, etc.)