Process for the manufacture of vinyl chloride
AssigneeProduits Chimiques Ugine Kuhlmann
InventorGeorge A. Olah
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Abstract
A process for the manufacture of vinyl chloride by the condensation of methyl chloride, obtained from methane or from methanol, followed by an oxychlorination of the condensation products and then by a dehydrochlorination. The condensation of methyl chloride preferably takes place in the presence of a catalyst selected from an aluminosilicate or an oxide, oxyhalide or sulfide of a transition metal of Groups IV, V, VI and VII of the Periodic Table.
Claims10
A process for the manufacture of vinyl chloride comprising directly and continously chlorinating methane or methanol to form methyl chloride, catalytically condensing said methyl chloride, oxychlorinating said condensation product, and dehydrochlorinating said oxychlorinated product to form vinyl chloride.
A process for the direct and continuous manufacture of vinyl chloride comprising chlorinating methane or methanol to form methyl chloride, condensing said methyl chloride in the presence of an acid-base bifunctional catalyst at a temperature of from about 250.degree. to 450.degree. C., to form a condensation product and hydrochloric acid, oxychlorinating said condensation product with a source of oxygen and hydrochloric acid in the presence of a copper chloride catalyst to form dichloroethane, and thermally dehydrochlorinating said dichloroethane at a temperature of from about 400.degree. to 530.degree. C., under a pressure of from about 5 to 20 bars to form vinyl chloride.
Dependencies are inferred from the claim text.