heat-corrosion resistant insulating material(polymer/ ceramics)

[mylon]

Is there an insulating material (polymer/ceramics) able to survive an higly corrosive environment(high concentration of chloride ions, organic solvents, PH 9-12) at a T= 300°C?

Cheers
Irene

 

[unclesyd]

Normally one would try to protect any insulating medium with some type of lagging. Many types of insulation become very hazardous when saturated with chemicals, mainly flammable solvents.
Remember that in a thermal cycliclic service that the chlorides tend to concentrate on the metal surface.

Here is a good place to start looking for a somewhat standalone material. I would contact the technical dept with you specific application.

http://www.foamglasinsulation.com/default.asp

We use expanded calcium silicate at you temperatures but no caustic. The problem is that cal-sil has no strength at these temperatures and lowers the ignition point of flammable materials.

If you could come back with a few more details on you application there maybe other possibilities.