C07C21/185

Method for producing tetrafluoroethylene and/or hexafluoropropylene

A process for producing one or both of tetrafluoroethylene and hexafluoropropylene, which includes pyrolyzing a low molecular weight fluorine compound by continuous reaction in a microreactor.

Upcycling perfluoropolymers into fluorinated olefins

Mechanical stirred bed reactors that incorporate a screen are described. Methods of using such reactors to process perfluoropolymers to form perfluorinated olefin monomers are also described. The reactors and methods may be used to upcycle filled perfluorinated materials.

Upcycling perfluoropolymers into fluorinated olefins

Mechanical stirred bed reactors that incorporate a screen are described. Methods of using such reactors to process perfluoropolymers to form perfluorinated olefin monomers are also described. The reactors and methods may be used to upcycle filled perfluorinated materials.

METHOD FOR PRODUCING TETRAFLUOROETHYLENE AND/OR HEXAFLUOROPROPYLENE

A process for producing one or both of tetrafluoroethylene and hexafluoropropylene, which includes pyrolyzing a low molecular weight fluorine compound by continuous reaction in a microreactor.

METHOD FOR PRODUCING TETRAFLUOROETHYLENE AND/OR HEXAFLUOROPROPYLENE

A process for producing one or both of tetrafluoroethylene and hexafluoropropylene, which includes pyrolyzing a low molecular weight fluorine compound by continuous reaction in a microreactor.

METHOD FOR PRODUCING TETRAFLUOROETHYLENE AND/OR HEXAFLUOROPROPYLENE

A process for producing one or both of tetrafluoroethylene and hexafluoropropylene, which includes pyrolyzing a low molecular weight fluorine compound by continuous reaction in a microreactor.

Separation method for halogenated unsaturated carbon compound

The method according to this disclosure is a method for separating an unsaturated hydrocarbon having 2 or 3 carbon atoms and a halogenated unsaturated carbon compound formed by replacing at least one of hydrogen atoms included in the unsaturated hydrocarbon with a fluorine atom, from each other and is a method for selectively adsorbing either the unsaturated hydrocarbon or the halogenated unsaturated carbon compound by a porous coordination polymer that includes a metallic ion having a valence of 2 to 4 and an aromatic anion having 1 to 6 aromatic ring(s).

Separation method for halogenated unsaturated carbon compound

The method according to this disclosure is a method for separating an unsaturated hydrocarbon having 2 or 3 carbon atoms and a halogenated unsaturated carbon compound formed by replacing at least one of hydrogen atoms included in the unsaturated hydrocarbon with a fluorine atom, from each other and is a method for selectively adsorbing either the unsaturated hydrocarbon or the halogenated unsaturated carbon compound by a porous coordination polymer that includes a metallic ion having a valence of 2 to 4 and an aromatic anion having 1 to 6 aromatic ring(s).

Process for the preparation of 2,3,3,3-tetrafluoropropene (1234yf)

The present invention provides an integrated process for preparing 2,3,3, 3-tetrafluoropropene (1234yf), the process comprising: (a) vapour phase catalytic fluorination of a first composition comprising 3,3,3-trifluoro-2-chloro-prop-1-ene (CF3CCNCH2, 1233xf) with hydrogen fluoride (HF) in a fluorination reactor to produce a fluorination product stream comprising 1,1,2,2-pentafluoropropane (245cb), HF and HCI; (b) vapour phase catalytic dehydrofluorination composition comprising 245cb in a dehydrofluorination reactor to produce a dehydrofluorination product stream comprising 1234yf and HF; wherein the fluorination product stream and the dehydrofluorination product stream are combined and subjected to (c) purification to produce a composition comprising 245cb and a 1234yf product stream.

Process for the preparation of 2,3,3,3-tetrafluoropropene (1234yf)

The present invention provides an integrated process for preparing 2,3,3, 3-tetrafluoropropene (1234yf), the process comprising: (a) vapour phase catalytic fluorination of a first composition comprising 3,3,3-trifluoro-2-chloro-prop-1-ene (CF3CCNCH2, 1233xf) with hydrogen fluoride (HF) in a fluorination reactor to produce a fluorination product stream comprising 1,1,2,2-pentafluoropropane (245cb), HF and HCI; (b) vapour phase catalytic dehydrofluorination composition comprising 245cb in a dehydrofluorination reactor to produce a dehydrofluorination product stream comprising 1234yf and HF; wherein the fluorination product stream and the dehydrofluorination product stream are combined and subjected to (c) purification to produce a composition comprising 245cb and a 1234yf product stream.