Application

Micocal DPO is a high-temperature-stable heat transfer fluid for use in temperature-critical systems. Typical fields of application are, for example, pro-duction of synthetic fibers and fine chemicals, Concentrated Solar Power (CSP) and plastics recycling.

Micocal DPO can be used in the vapor phase as well as in the liquid phase up to 400°C. In the liquid phase the product can be used unpressurized at a temperature range of between 12°C and 257°C and pressurized up to 400°C. The film temperature at the heater must not exceed 430°C.

Micocal DPO crystallizes below 12°C, but without volume expansion. On pipelines and on system components in which the fluid is not constantly flowing or where temperatures are under 12°C, a heat tracing should be provided.

Also, with use in unpressurized ranges in the liquid phase a nitrogen blanket is recommended in the expansion tank, in order to prevent premature ageing.

Quality

Micocal DPO is an eutectic mixture of 73,5 % diphenyl oxide and 26,5 % biphenyl. Therefore the product can be used in the vapor phase as well as in the liquid phase. Additionally Micocal DPO is miscible with other comparable composed products.

Micocal DPO shows a high thermal stability and thus provides a long service life. The application of Micocal DPO in the vapor phase allows an exact temperature control in sensitive plant equipment.

Micocal DPO is non-corrosive and is compatible with materials conventionally used in heat transfer technology.

Packaging

Micocal DPO is available in drums of 220 kg, in pails of 20 kg and 1000 liter IBCs.