Preparation method of perfluoropolyoxyalkylene peroxide and perfluoropolyether

A polyoxyalkylene and perfluoroolefin technology, which is applied in the preparation of peroxy compounds, the preparation of organic compounds, chemical instruments and methods, etc. Problems such as low preparation and reaction safety, to achieve the effect of improving yield, improving reaction selectivity and yield
CN112940237APending Publication Date: 2021-06-11JUHUA GROUP TECH CENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JUHUA GROUP TECH CENT
Publication Date
2021-06-11

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Abstract

The invention discloses a preparation method of perfluoropolyoxyalkylene peroxide and perfluoropolyether, and relates to the technical field of fluorine chemical industry. The preparation method of perfluoropolyoxyalkylene peroxide comprises the step of synthesizing perfluoropolyoxyalkylene peroxide from perfluoroalkene and oxygen in a supergravity reactor. According to the preparation method, the problems that perfluoropolyoxyalkylene peroxide with high number-average molecular weight cannot be efficiently prepared, the yield is low and the reaction safety is low in the existing preparation method are solved, the number-average molecular weight of the perfluoropolyoxyalkylene peroxide compound can be stably controlled and adjusted between 600 and 50000, the reaction safety and the yield are high, and the preparation method is suitable for industrial continuous production.
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Description

technical field

[0001] The application relates to the technical field of fluorine chemical industry, in particular to a preparation method of perfluoropolyoxyalkylene peroxide and perfluoropolyether. Background technique

[0002] Perfluoropolyether (English name PerfIuoro PoIyethers, abbreviated as PFPE) is a synthetic polymer that is liquid at room temperature, and its molecular weight distribution ranges from hundreds to hundreds of thousands. It is an industrial product with extremely superior performance and a wide range of uses, such as measurement in electrical sensors, vapor phase or liquid phase welding, protection of building materials, high temperature lubricating grease, etc., in the synthesis of anti-fingerprint agents, high-speed hard disk lubricants It has an irreplaceable advantage in the synthesis. Perfluoropolyoxyalkylene peroxide, as the precursor material of perfluoropolyether, can be converted into inert perfluoropolyether without peroxy group and active...

Claims

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