There are provided methods and systems related to use of one or more lanthanide halides in an electrochemical oxidation of metal halide in anolyte where the metal ion is oxidized from lower oxidation state to higher oxidation state at an anode; and then further use of the one or more lanthanide halides and the metal halide with the metal ion in the higher oxidation state in a halogenation reaction of an unsaturated hydrocarbon or a saturated hydrocarbon to form one or more products comprising halohydrocarbon.

There are provided methods and systems related to use of one or more lanthanide halides in an electrochemical oxidation of metal halide in anolyte where the metal ion is oxidized from lower oxidation state to higher oxidation state at an anode; and then further use of the one or more lanthanide halides and the metal halide with the metal ion in the higher oxidation state in a halogenation reaction of an unsaturated hydrocarbon or a saturated hydrocarbon to form one or more products comprising halohydrocarbon.

A process for producing a reaction mixture comprising a plurality of C.sub.3 chlorinated alkane isomers comprising chlorinating a C.sub.3 chlorinated alkane starting material in a chlorination zone to produce the plurality of C.sub.3 chlorinated alkane isomers, the plurality of C.sub.3 chlorinated alkane isomers each having at least one more chlorine atom than the C.sub.3 chlorinated alkane starting material, wherein the concentration of the C.sub.3 chlorinated alkane starting material is controlled such that conversion of the C.sub.3 chlorinated alkane starting material to the plurality of C.sub.3 chlorinated alkane isomers, represented by the molar ratio of the C.sub.3 chlorinated alkane starting material:C.sub.3 chlorinated alkane isomers in the reaction mixture present in the chlorination zone, does not exceed about 40:60.

A process for producing a reaction mixture comprising a plurality of C.sub.3 chlorinated alkane isomers comprising chlorinating a C.sub.3 chlorinated alkane starting material in a chlorination zone to produce the plurality of C.sub.3 chlorinated alkane isomers, the plurality of C.sub.3 chlorinated alkane isomers each having at least one more chlorine atom than the C.sub.3 chlorinated alkane starting material, wherein the concentration of the C.sub.3 chlorinated alkane starting material is controlled such that conversion of the C.sub.3 chlorinated alkane starting material to the plurality of C.sub.3 chlorinated alkane isomers, represented by the molar ratio of the C.sub.3 chlorinated alkane starting material:C.sub.3 chlorinated alkane isomers in the reaction mixture present in the chlorination zone, does not exceed about 40:60.

A process for producing a reaction mixture comprising a plurality of C.sub.3 chlorinated alkane isomers comprising chlorinating a C.sub.3 chlorinated alkane starting material in a chlorination zone to produce the plurality of C.sub.3 chlorinated alkane isomers, the plurality of C.sub.3 chlorinated alkane isomers each having at least one more chlorine atom than the C.sub.3 chlorinated alkane starting material, wherein the concentration of the C.sub.3 chlorinated alkane starting material is controlled such that conversion of the C.sub.3 chlorinated alkane starting material to the plurality of C.sub.3 chlorinated alkane isomers, represented by the molar ratio of the C.sub.3 chlorinated alkane starting material:C.sub.3 chlorinated alkane isomers in the reaction mixture present in the chlorination zone, does not exceed about 40:60.

A process for producing a reaction mixture comprising a plurality of C.sub.3 chlorinated alkane isomers comprising chlorinating a C.sub.3 chlorinated alkane starting material in a chlorination zone to produce the plurality of C.sub.3 chlorinated alkane isomers, the plurality of C.sub.3 chlorinated alkane isomers each having at least one more chlorine atom than the C.sub.3 chlorinated alkane starting material, wherein the concentration of the C.sub.3 chlorinated alkane starting material is controlled such that conversion of the C.sub.3 chlorinated alkane starting material to the plurality of C.sub.3 chlorinated alkane isomers, represented by the molar ratio of the C.sub.3 chlorinated alkane starting material:C.sub.3 chlorinated alkane isomers in the reaction mixture present in the chlorination zone, does not exceed about 40:60.

A process for producing a reaction mixture comprising a plurality of C.sub.3 chlorinated alkane isomers comprising chlorinating a C.sub.3 chlorinated alkane starting material in a chlorination zone to produce the plurality of C.sub.3 chlorinated alkane isomers, the plurality of C.sub.3 chlorinated alkane isomers each having at least one more chlorine atom than the C.sub.3 chlorinated alkane starting material, wherein the concentration of the C.sub.3 chlorinated alkane starting material is controlled such that conversion of the C.sub.3 chlorinated alkane starting material to the plurality of C.sub.3 chlorinated alkane isomers, represented by the molar ratio of the C.sub.3 chlorinated alkane starting material:C.sub.3 chlorinated alkane isomers in the reaction mixture present in the chlorination zone, does not exceed about 40:60.

The present invention provides a method that produces a composition containing 1223xd and/or 1213xa by a gas-phase reaction, and that achieves production efficiency higher than known methods. The present invention provides a method for producing a composition containing at least one fluorine-containing olefin selected from 1,2-dichloro-3,3,3-trifluoropropene (HCFO-1223xd) and 1,1,2-trichloro-3,3,3-trifluoropropene (CFO-1213xa), the method comprising subjecting at least one starting compound selected from a chlorine-containing alkane represented by Formula (1-1): CF.sub.3CHXCHX.sub.2, wherein each X is independently H or Cl, with the proviso that at least one X represents Cl, and a chlorine-containing alkene represented by Formula (1-2): CF.sub.3CXCX.sub.2, wherein each X is independently H or Cl, with the proviso that at least one X represents Cl, to a gas-phase oxychlorination reaction in a temperature range of 380 C. or lower in the presence of oxidative gas and hydrogen chloride gas.

The present invention provides a method that produces a composition containing 1223xd and/or 1213xa by a gas-phase reaction, and that achieves production efficiency higher than known methods. The present invention provides a method for producing a composition containing at least one fluorine-containing olefin selected from 1,2-dichloro-3,3,3-trifluoropropene (HCFO-1223xd) and 1,1,2-trichloro-3,3,3-trifluoropropene (CFO-1213xa), the method comprising subjecting at least one starting compound selected from a chlorine-containing alkane represented by Formula (1-1): CF.sub.3CHXCHX.sub.2, wherein each X is independently H or Cl, with the proviso that at least one X represents Cl, and a chlorine-containing alkene represented by Formula (1-2): CF.sub.3CXCX.sub.2, wherein each X is independently H or Cl, with the proviso that at least one X represents Cl, to a gas-phase oxychlorination reaction in a temperature range of 380 C. or lower in the presence of oxidative gas and hydrogen chloride gas.

Integrations of carbon monoxide electrolyzers and chlor-alkali electrolyzers are disclosed herein. The disclosed integrations include novel process chains for the valorization of oxocarbons into hydrochloric acid, vinyl chloride, vinyl acetate, ethylene oxide, and other useful chemicals. The disclosed integrations further include novel ways to operate the electrolyzers in tandem to increase the efficiency of both reactors. This disclosure also includes novel ways to balance the operation of both electrolyzers to assure they are operating at an optimal level to take advantage of the benefits of the disclosed integrations.