| 摘要 |
<p>1,141,369. Oxychlorination process. HOOKER CHEMICAL CORP. 4 Feb., 1966 [25 Feb., 1965], No. 5087/66. Heading C2C. A process for the oxychlorination of alkenes comprises, (a) contacting and reacting at a temperature of 170-400‹ C. in the vapour phase and in the presence of an oxychlorination catalyst (i) oxygen, (ii) a C 2-4 alkene or partially halogenated alkene, (iii) an inorganic gas as diluent, and (iv) as chlorinating agent, hydrogen chloride, chlorine, or a mixture of hydrogen chloride and chlorine, the amount of chlorinating agent being less than that stoichiometrically required to add two chlorine atoms to each molecule of alkene, (b) subsequently partially condensing the effluent gases, (c) separating the condensate, and (d) recycling substantially all of the non-condensed gases, thereby providing additional reactants and diluent gases for further reaction.</p> |
