Electrolysis: processes – compositions used therein – and methods – Electrolytic synthesis – Recycling electrolytic product produced during synthesis...
Patent
1996-12-23
1999-04-06
Valentine, Donald R.
Electrolysis: processes, compositions used therein, and methods
Electrolytic synthesis
Recycling electrolytic product produced during synthesis...
205459, 205620, 204265, 204266, C25B 306, C25B 900, C25B 1508, C25B 126
Patent
active
058913181
ABSTRACT:
A process and a system uses a direct chlorination reactor for producing ethylene dichloride by direct chlorination, without the need for an oxychlorination unit. This ethylene dichloride may be used to make vinyl chloride monomer. In the process for making ethylene dichloride, ethylene and chlorine are both supplied to a direct chlorination reactor. The ethylene reacts with the chlorine to form ethylene dichloride. Chlorine is supplied to the direct chlorination reactor from an electrochemical cell which converts anhydrous hydrogen chloride to dry chlorine gas. This chlorine gas is purified and liquefied to form liquid dry chlorine, and the liquid dry chlorine is recycled to the direct chlorination reactor. The ethylene dichloride may be pyrolyzed to produce vinyl chloride monomer and anhydrous hydrogen chloride.
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Felix Vinci Martinez
Freire Francisco Jose
Kaiser Bruce Arthur
Mah Dennie Turin
E. I. Du Pont de Nemours and Company
Valentine Donald R.
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