Patent ID: 8444844
Filing Date: 2013-05-21
Classification: C07C,C25B,Y02P

Abstract:
1. A method for co-producing a first product and a second product, the method comprising the steps of: contacting a first region of a first electrochemical cell having an cathode with a catholyte comprising carbon dioxide; contacting a second region of a first electrochemical cell having an anode with an anolyte comprising a MX where M is at least one cation and X is selected from a group consisting of F, Cl, Br, I, and mixtures thereof; applying an electrical potential between the anode and the cathode sufficient to produce M-carboxylate recoverable from the first region of the first electrochemical cell and a halogen recoverable from the second region of the first electrochemical cell; reacting the M-carboxylate with HX via a secondary reactor to produce a carboxylic acid and MX, the MX being recycled to an input of the second region of the first electrochemical cell; contacting a first region of a second electrochemical cell having a cathode with a catholyte comprising the carboxylic acid; contacting a second region of a second electrochemical cell having an anode with an anolyte comprising HX; applying an electrical potential between the anode of the second electrochemical cell and the cathode of the second electrochemical cell sufficient to produce at least one of another carboxylic acid, an aldehyde, a ketone, a glycol or an alcohol recoverable from the first region of the second electrochemical cell and a halogen recoverable from the second region of the second electrochemical cell; reacting the halogen from the second region of the first electrochemical cell and from the second region of the second electrochemical cell with an alkane, aromatic compound, or other carbon compound to produce a halogenated compound and HX, the HX being recycled back to the second region of the second electrochemical cell and to the input of the secondary reactor; and reacting the halogenated compound via at least one reactor to produce at least one of an alkene, alkyne, alcohol, phenol, aldehyde, ketone, unsaturated carbon compound, or longer-chain alkane, and HX, the HX being recycled back to the second region of the second electrochemical cell and to the input of the secondary reactor.