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US 5,663,465 AGranted
By-product recycling in oxychlorination process
AssigneeEVC Technology AG
InventorsIan Michael Clegg, Ray Hardman
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Abstract
A method for the catalytic oxychlorination of ethane to VCM comprising the steps of combining ethane and a chlorine source in an oxychlorination reactor with a suitable catalyst to promote the oxychlorination of the ethane, collecting the resultant VCM and by-productsand recycling the by-products to the oxychlorination reactor to participate in the reaction therein.
Claims5
A method for the catalytic oxychlorination of ethane to VCM comprising the steps of:
- (a) combining ethane and a chlorine source in an oxychlorination reactor with a suitable catalyst to promote the oxychlorination of the ethane, and collecting the resultant VCM and byproducts;
- (b) recycling unconverted feeds and saturated byproducts to the oxychlorination reactor to participate in the reaction therein;
- (c) treating unsaturated chlorinated hydrocarbon byproducts in a hydrogenation step to convert them to their saturated chlorinated hydrocarbon counterparts and passing said saturated chlorinated hydrocarbon counterparts to the oxychlorination reactor to participate in the reaction therein;
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- (d) treating ethylene byproduct in a chlorination step to convert it to dichloroethane and passing said dichloroethane to the oxychlorination reactor to participate in the reaction therein.
2 more elements
Dependencies are inferred from the claim text.