Methods for manufacturing trifluoroacetyl fluoride and carbonyl fluoride

By controlling the reaction of hexafluoropropylene or hexafluoropropylene oxide with oxygen in a nickel or nickel alloy reactor through a gas-phase reaction method, the problems of complex equipment and insufficient safety in existing technologies have been solved, and high-yield industrial production of trifluoroacetyl fluoride and carbonyl fluoride has been achieved.

CN122138955APending Publication Date: 2026-06-02KANTO DENKA IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
KANTO DENKA IND CO LTD
Filing Date
2024-10-24
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing technologies for synthesizing trifluoroacetyl fluoride and carbonyl fluoride suffer from problems such as complex equipment, cumbersome processes, numerous byproducts, low yields, and insufficient safety, especially the risk of runaway reactions during industrial-scale production.

Method used

A gas-phase reaction method is used to react hexafluoropropylene or hexafluoropropylene oxide with oxygen and diluent compounds in a reactor made of nickel or nickel alloy. By controlling the reaction conditions and the gas contact surface, side reactions are suppressed and the yield of the products is improved.

Benefits of technology

This technology enables a simple and safe industrial production of trifluoroacetyl fluoride and carbonyl fluoride, avoiding the use of photoreactors and specific hydrogen fluoride adducts, and improving the yield of the products and production safety.

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Abstract

A simple, safe, and industrially feasible method for manufacturing trifluoroacetyl fluoride (TFAF) and carbonyl fluoride (COF2) is provided. One method for manufacturing trifluoroacetyl fluoride and carbonyl fluoride comprises the following steps: introducing at least one reactant selected from hexafluoropropylene and hexafluoropropylene oxide with oxygen and a diluent compound into a reactor to obtain a product gas containing trifluoroacetyl fluoride and carbonyl fluoride.
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