C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 21/06 (2006.01) C07C 5/44 (2006.01) C07C 11/04 (2006.01) C07C 17/10 (2006.01) C07C 17/156 (2006.01) C07C 19/045 (2006.01)
Patent
CA 2097435
The present invention provides an efficient process for the production of ethylene or a mixture of ethylene and vinyl chlo- ride, in which some 1,2-dichloroethane (EDC) may also be produced, by reacting chlorine with ethane. The process is character- ized by a conversion of ethane per pass through the reactor of at least about 50 %, and a combined molar yield of ethylene and vinyl chloride of at least about 80 % based on the ethane consumed. In accordance with this invention, there is provided a process for preparing ethylene or a mixture of ethylene and vinyl chloride by the reaction of ethane and chlorine which comprise: a) pro- viding a stream of ethane feed gas and a stream of chlorine feed gas; b) preheating either said ethane stream only or both said ethane and chlorine streams; c) thoroughly mixing said ethane and chlorine feed gases within about one second and at a molar ratio of ethane to chlorine of at least about 0.9:1.0; d) said preheating being sufficient to enable the resultant mixture to have a temperature above the free radical formation temperature for chlorine; and e) permitting said ethane and chlorine in said mixture to react so that the reacted mixture has a temperature between about 600 °C and 800 °C; whereby the combined molar yield of ethylene and vinyl chloride is at least about 80 % of the ethane reacted.
Benson Sidney W.
Chen Hang-Chang B.
Viswanathan Krishnan
Norton Rose Canada S.e.n.c.r.l.,s.r.l./llp
Occidental Chemical Corporation
Oxy Vinyls L.p.
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