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  • AEROPHINE promoters are mining reagents for separations, in the flotation process, designed using unique phosphorus collector chemistry for the efficient recovery of precious metal and base metal sulfide values from ores. They have particular affinity toward precious metals and their minerals, as well as Cu and Pb sulfides.
  • AEROPHINE3418A promoter is recognized as an exceptional polymetallic collector for its superior performance in the processing of complex, polymetallic and massive sulfide ores. It is excellent in rejecting iron sulfides (pyrite, pyrrhotite, marcasite, and arsenopyrite), non-activated sphalerite and penalty elements.


OresMineral ValuesMajor Minerals




Secondary copper sulfides

Free gold & electrum

Gold & silver associated with sulfides






Cu sulfides



Silver, gold & electrum


Gold & silver associated with sulfides

Precious MetalsAu/Cu and Auriferous Pyrite

Cu sulfides, electrum, pyrite, arsenopyrite

Refractory gold



Ni / Cu




  • AEROPHINEpromoters serve as outstanding base metal ore collectors and excellent reagents for precious metal mining, and have found widest application in the selective beneficiation of:
    • All complex polymetallic ores containing Cu, Pb, Zn, and Ag/Au
      • Pb/Zn ores with high Ag/Au content (as lead flotation collector)
      • Cu/Zn ores with high Ag/Au content (as copper flotation collector) 
      • Cu/Pb/Zn ores with high Ag/Au content (as lead flotation collector)
    • Copper ores containing secondary Au and/or Ag values when the recovery of these metals can have a significant economic impact on the profitability of an operating plant whose primary products are base metal sulfide concentrates
    • Selective flotation of Cu at high pH from Ni/Cu ores
    • High grade precious metal (Au/Ag) ores containing sulfides
    • Ores with high levels of pyrite and/or pyrrhotite

  • Strong affinity for precious metals and their minerals (e.g., Au, Ag, and PGM) while being selective against gangue
  • Strong affinity toward certain base metal sulfide minerals (Cu sulfides, Pb sulfide, and Ni sulfides)
  • Increased recoveries of precious metals associated with base metal ores, thereby increasing the economic value of the concentrates
  • Improved copper and gold selectivity in flash flotation circuits
  • High selectivity against iron sulfides (e.g., pyrite), unactivated zinc sulfides (e.g. sphalerite) and arsenic minerals (e.g., arsenopyrite). Its unique selectivity may facilitate elimination of the use of sodium cyanide at some operations
  • Low dosage required
  • Improved flotation rates
  • High stability compared to xanthates and DTPs; higher hydrolytic and oxidative stability (with regard to shelf life, transport stability, plant use stability)
  • Low toxicity - readily biodegradable post use (in tailings ponds) - info about biodegradability is available in the SDS

  • The AEROPHINE technology maximizes NSR by improving the grade recovery curve of base and precious metals ores through faster flotation rates and selectively rejecting penalty elements and gangue minerals.
  • AEROPHINE creates a high grade final concentrate and captures additional precious metals enabling mines to maximize NSR from every tonne of ore processed.

  • AEROPHINEpromoters are effective at low dosages. Industrial applications range between 10g/t to 30g/t per % base metal (Cu, Pb, etc.) head grade.  
    • Ex: 1.5% head grade ore - would use between, 15-45g/t of AEROPHINE as a starting point. Laboratory evaluation will provide more information on accurate dosages required per ore type.

Solvay recommends AEROPHINEpromoters to be fed neat. In the case of AEROPHINE 3418A, the reagent can be diluted to 1%-20% solution to a conditioning tank prior to flotation.

Before handling this product, carefully read the Solvay Safety Data Sheet for health, safe handling and regulatory information.


 AEROPHINE3418A promoter
ColorColorless to pale yellow
Boiling Point106 ℃ to 223 ℉
Melting Point-12 °C 10 °F (Crystallization Point)
Vapor Pressure 17.5 mmHg (23.33 hPa) @ 20 °C  68 °F (Value for Water)
Specific Gravity / Density1.1 g/cm3 @ 25 °C 77 °F
Flash Point

Pensky-Martens closed cup

No flash up to boiling point

Auto-Ignition Temperature437 °C 819 °F
Decomposition Temperature>350 °C 662 °F
Viscosity (Kinematic)16.6 mPa.s @ 25 °C 77 °F

  • Before handling this product, carefully read the Solvay Safety Data Sheet for health, safe handling and regulatory information. 
  • The storage vessel should be made of stainless steel, mild steel, cast iron, HD polyethylene, HD polypropylene, PTFE materials or PVC materials. Do not use copper, brass, galvanized steel or soft rubber in feed or storage systems.
  • It is recommended to be stored in a closed container, away from heat and acids.
  • Recommended storage temperature: 0 - 35 °C (32 - 95 °F) to guarantee the quality and properties of the product.
  • Has an excellent freeze thaw profile. If frozen, allow material to thaw and mix thoroughly to obtain a homogeneous solution before use.



PTFE Fluoroelastomers  


FEP Fluoro Polymer

Carbon steel (black steel iron)








Stainless steelPVCGalvanized carbon steelSoft RubberCopper or  BrassNylon

  • Xanthate collectors are supplied as dry pellets that are then required to be handled and converted into solution on site at the mine. Xanthates have combustible properties and require special storage precautions. Furthermore, release of CS2 during application presents a significant safety hazard to the mining industry. 
  • AEROPHINE promoters are liquid products that can be dosed directly in the process, substantially improving handling and level of exposure of the personnel to product, stock safety management, water use and waste generation, and simplifying the plant operation.

  • AEROPHINE3418A promoter is produced in Solvay’s Welland, Ontario, Canada plant using state-of-the-art pH3 manufacturing technology. 
  • Globally available in over 30 countries.

For more information or to request a sample, contact one of our experts.

  • AEROPHINE  promoters are generally froth-neutral collectors, so a frother change is not commonly required; however, a frother dosage adjustment is required depending on the incumbent collector type. 
  • Solvay recommends alcohol-based frothers such as:
    • AEROFROTH 70 or OREPREP F-501 frothers for AEROPHINE 3418A lead circuit applications 
    • And an alcohol glycol formulation such as OREPREP X-133 or glycol OREPREP F-549 frothers for copper ores
  • Speak to your Solvay representative for more information and frother recommendations based on your ore type.

  • Selecting the correct AEROPHINE product depends on several factors, including ore type, head grades, mineralogy (value and gangue), circuit design and separation requirements.  
  • AEROPHINE3418A is recommended as a starting point, but in some applications may not be the optimum product. AEROPHINE blends are commonly selected when the mineralogy requires multiple collector chemistries to achieve the level of separation efficiency required. More information can be found in the (link to Applications tab).
  • Speak to your Syensqo representative to review your options to deliver the optimum solution for your ore type.