How is Pyrograf® III produced?
Pyrograf III is produced in the vapor phase by decomposing either methane, ethane, other aliphatic hydrocarbons, or coal gas in the presence of a metal catalyst, hydrogen sulfide and ammonia. Once produced the fiber is debulked for either sale or additional processing. The additional processing can include pyrolytic stripping to remove tars and other hydrocarbons from the surface of the fiber. As required by customers the fibers can be heat treated at temperatures up to 3,000°C for use in their applications.
