B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 23/46 (2006.01) B01J 21/06 (2006.01) C01B 7/04 (2006.01)
Patent
CA 2261842
The present invention is to provide a process for producing chlorine by oxidizing hydrogen chloride with oxygen, wherein said process uses one catalyst selected from the following catalysts (1) to (9): (1) a supported ruthenium oxide catalyst obtained by the steps which comprise supporting a ruthenium compound on a carrier, treating the supported one by using a basic compound, treating by using a reducing compound, and oxidizing; (2) a supported ruthenium oxide catalyst obtained by the steps which comprise supporting a ruthenium compound on a carrier, treating the supported one by using a reducing agent to form ruthenium having an oxidation number of 1 to less than 4 valence, and oxidizing; (3) a supported ruthenium oxide catalyst obtained by the steps which comprise supporting a ruthenium compound on a carrier, reducing the supported one by using a reducing hydrogenated compound, and oxidizing; (4) a supported ruthenium oxide catalyst obtained by using titanium oxide containing rutile titanium oxide as a carrier; (5) a supported ruthenium oxide catalyst obtained by the steps which comprise supporting a ruthenium compound on a carrier, treating the supported one by using a reducing compound or reducing agent in a liquid phase, and oxidizing, wherein titanium oxide contains an OH group in an amount of 0.1 X 10-4 to 30 X 10-4 (mol/g-carrier) per unit weight of the carrier; (6) a catalyst system containing the following components (A) , and not less than 10 % by weight of component (B): (A) an active component of catalyst; (B) a compound wherein thermal conductivity of a solid phase measured by at least one point within a range from 200 to 500°C is not less than 4 W/m.°C; (7) a supported ruthenium oxide catalyst having a macro pore with a pore radius of 0.03 to 8 micrometer; (8) an outer surface-supported catalyst obtained by supporting ruthenium oxide on a carrier at the outer surface; and (9) a supported ruthenium catalyst obtained by using chromium oxide as a carrier.
Abekawa Hiroaki
Hibi Takuo
Iwanaga Kiyoshi
Oizumi Takahiro
Seki Kohei
Fetherstonhaugh & Co.
Sumitomo Chemical Company Limited
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