| 摘要 |
An improved process is disclosed for manufacturing chlorinated hydrocarbon bymy of oxychlorination which yields reduced levels of environment toxins such as, chlorobenzenes, polychlorinated dibenzofurans. The process involves fixed bed or fluid bed catalyzed oxychlorination of a hydrocarbon reactant with oxygen or oxygenated gas and at least a portion externally oxychlorination catalyst in a heated reaction zone operated at from 150 degree C to 600 degree C and recovering chlorinated improvement consists of the use of at least a portion of the hydrogen chloride from an external source other than from recovery of hydrogen chloride from the thermal pyrolysis of the product from the operated oxychlorination process, wherein the external hydrogen chloride, containing aromatic hydrocarbons, is pretreated before use in the operated oxychlorination process by a means for removal of the aromatic hydrocarbons.
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