Polluted water purification
AssigneePhillips Petroleum Company
InventorsE. O. Box, Jr., Floyd Farha, Jr.
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Abstract
Organically polluted waters are purified by contacting with a solid copper-manganese-oxygen catalyst promoted with bismuth under oxidizing conditions. In one preferred embodiment, an aqueous stream obtained from the effluent of an oxidative dehydrogenation process containing contaminating oxygen-containing organic materials is subjected to oxidizing conditions in the presence of a copper-manganese-bismuth-oxygen catalyst to convert the water to an aqueous product.
Claims10
A process for the purification of aqueous streams containing organic material impurities dissovled and suspended therein to aqueous products substantially free of organic material which comprises contacting an aqueous stream containing oxidizable organic pollutant impuritites and an oxygen-containing gas with a solid copper manganite spinel structure catalyst promoted with bismuth in which the atomic ratio of copper to manganese varies from about 0.25:1 to about 4:1 and bismuth to manganese varies from about 0.0003:1 to about 0.5:1 under oxidation conditions including a temperature and a ratio of water to oxygen sufficient to convert said organic materials to innocuous materials, thereby converting said aqueous stream to a potable aqueous product which can be safely discarded or reused.
A catalyst composition consisting essentially of a solid copper manganite spinel structure promoted with bismuth in which the atomic ratio of copper to manganese varies from about 0.25:1 to about 4:1 and the bismuth to manganese atomic ratio varies from about 0.0003:1 to about 0.5:1.
Dependencies are inferred from the claim text.