Pyro-processing rotary kiln mixing rod

Quartz fusion crucible

Quartz fusion furnace and method for forming quartz articles

Quartz tube for thermal processing of semiconductor substrates

Radiation reflecting door for process furnace

Radiation shield and method of use

Reaction furnace

Reactor combustion control method and reactor

Recovery furnace safety system

Recovery of heat from flue gas

Recuperative double chamber rotary furnace

Recuperator

Reduction of nitrogen oxide (NO.sub.x) emission from a kiln plan

Regenerative furnace system with variable flue port control

Regenerative shaft furnace for burning carbonate-containing raw

Regenerative thermal oxidizer

Reheating metal bodies with recovered blast-furnace energy

Remediation of hydrocarbons from soils, sand and gravel

Remote heating process

Repair of the refractory lining of the wall of a shaft furnace a