Process for producing chlorine
AssigneeSumitomo Chemical Company, Limited
InventorsHiroaki Abekawa, Yoshiaki Ito, Takuo Hibi
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Abstract
A process for producing chlorine by oxidizing hydrogen chloride with oxygen, which comprises using at least one catalyst selected from the group consisting of a supported ruthenium chloride catalyst, a catalyst obtained by supporting at least one ruthenium compound, a ruthenium oxide catalyst obtained by oxidizing a catalyst which is prepared by supporting at least one ruthenium compound, and a catalyst obtained by calcining ruthenium chloride supported on a carrier at the temperature of not less than 280.degree. C.
Claims7
A process for producing chlorine by oxidizing hydrogen chloride with oxygen, which comprises using at least one catalyst selected from the group consisting of the following catalysts (a) and (b):
- (a) a supported ruthenium chloride catalyst, in which a carrier is a carrier containing at least one compound of titanium oxide and zirconium oxide and a weight ratio of ruthenium to the carrier is from 0.5 to 20% by weight, and
- (b) a catalyst obtained by supporting at least one ruthenium compound selected from the group consisting of ruthenium-carbonyl complex, ruthenium organic acid salt, and ruthenium-nitrosyl complex on a carrier, in which a weight ratio of ruthenium to the carrier is from 0.5 to 20% by weight, wherein, at the same process conditions, the activity of chlorine formation using said catalyst obtained by supporting at least one ruthenium compound on a carrier is higher than the activity of chlorine formation using ruthenium trichloride.
Dependencies are inferred from the claim text.