To provide a reaction tube for an organic halogen compound cracking apparatus which is capable of assuring both of desired heat resistance and corrosion resistance.
The reaction tube has a cylindrical shape in cross section and has a reaction tube upper part connected to the terminal of a plasma discharge tube and a reaction tube lower part connected across a gasket 51 to the reaction tube upper part. The approximately annular planar gasket 51 has a core material 52 which consists of an approximately annular planar asbestos-base gasket, covering parts 53 which consists of, for example, carbon-base gasket disposed to cover the outside surface, i.e., front surface 52A and rear surface 52B as well as inner peripheral surface 52C and outer peripheral surface of the core material 52 and tacky adhesives 54 which adhere the core material 52 and the covering parts 53. The covering parts 53 have the rear surface side covering parts 53a which cover the rear surface 52B and inner peripheral surface 53C of the core material 52 across the tacky adhesives 54 and the front surface covering parts 53b which cover the front surface 52A and inner peripheral surface 52C of the core material 52 across the tacky adhesives 54 and cover the front surface of the rear surface side covering parts 53a.
MATSUMOTO SOICHIRO
OKADA YUJI
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