METHOD FOR PRODUCING A PERFLUOROALKYNE COMPOUND Russian patent published in 2022 - IPC C07C17/358 C07C21/22 C07C23/06 B01J27/32 B01J27/135 

FIELD: chemistry.

SUBSTANCE: invention relates to two variants of a method for producing a perfluoroalkyne compound. According to one variant, the method includes reacting a perfluoroalkadiene compound in the presence of a catalyst in order to produce a perfluoroalkine compound, and satisfies one of the following conditions (C)-(F): (C) the catalyst includes at least one catalyst selected from a group including a fluorinated chromium oxide with a porosity of 0.08 ml/g or more, a fluorinated aluminium oxide with a porosity of 0.35 ml/g or more, and a fluorinated aluminosilicate with a porosity of 0.50 ml/g or more; (D) the catalyst contains a fluorinated metal oxide selected from a group including a fluorinated aluminium oxide and a fluorinated aluminosilicate with a porosity of 0.35 ml/g or more; (E) the catalyst contains a metal oxide fluorinated by interacting the metal oxide with at least one compound selected from a group including hydrofluorocarbon, hydrochlorofluorocarbon, and chlorofluorocarbon, wherein the metal of the metal oxide constitutes at least one element selected from a group including chromium, titanium, silicon, and zirconium; and (F) the catalyst includes one or multiple catalysts produced by fluorinating at least one metal oxide selected from a group including a chromium oxide with a porosity of 0.10 ml/g or more, an aluminium oxide with a porosity of 0.45 ml/g or more, and an aluminosilicate with a porosity of 0.50 ml/g or more. Invention also relates to a catalyst and to a method for producing a catalyst.

EFFECT: possibility of producing a perfluoroalkine compound with high selectivity at a high degree of conversion.

13 cl, 15 tbl, 3 ex, 3 dwg