Heat transfer

Brief description

High-boiling, low to medium viscous heat carrier with high thermal stability for heating and cooling as a liquid or in vapour phase in an inert gas atmosphere.

Product group
Organic heat transfer

Product name

LANXESS Deutschöand GmbH, Leverkusen


Organic heat transfer liquids are used everywhere, where precise temperature control is required, as in the production and processing of plastics, synthetic fibres and rubber. Especially in the important polyester industry (manufacturing and processing of PET, e.g. in fibres and bottles) these heat carriers are essential. They also play an important role in the synthesis of chemicals (formaldehyde and PSA for instance). Besides the traditional areas, there are always new and interesting applications in process technology (e.g. in solar power plants or ORC processes in biomass power plants), which are important to the future.

Other information:

Diphyl 13-400 °C

Diphenyl oxide / biphenyl eutectic


High temperature heat transfer medium for liquid and vapour phase heating

Typical applications:

  • Manufacture of synthetic fibres / temperature control for extruders
  • Indirect heating in the plastics and chemical industry
  • Heat transfer medium in solar power plants

Diphyl DT -30-330 °C

Ditolyl ether / dimethyl-diphenyl ether


Low-cost, organic heat transfer medium for wide temperature range

Typical applications:

  • Paint and coatings industry / varnish resin production
  • Chemical industry (e.g. PSE production process)

Diphyl KT -45-350 °C

Benzyl toluenes


Low viscosity, organic heat transfer medium with favourable heat transfer, particularly for combined heating and cooling processes in the liquid phase

Typical applications:    

  • Chemical and petrochemical industries
  • Processing of rubber and plastics

Diphyl THT 0-345 °C

Partially hydrogenated terphenyls


- Hochleistungswärmeträger für den drucklosen Betrieb -

Typical applications:

  • Processing facilities in the chemical and petrochemical industry
  • Distillation processes
  • Waste heat recovery
  • ORC processes

Other cold and heat transfer

Other cold and heat transfer: On request, we will gladly send you our current product documentation and samples for laboratory tests.


Contact Persons

Lukas Böhl

Sales of Specialty Chemicals

+49 (0) 2751-524-123E-Mail-Kontakt

Your contact for

  • Activated carbons
  • Alkane sulphonates
  • Emulsifiers
  • Defoamers
  • Ion exchangers (Lewatit)
  • Statexan K 1
  • Heat/cold transfer (Diphyl)

Verena Böttger

Sales of Specialty Chemicals

+49 (0) 2751-524-139E-Mail-Kontakt

Your contact for

  • Alkane sulphonates
  • Emulsifiers
  • Defoamers
  • Statexan K 1
  • Heat/cold transfer (Diphyl)

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