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Preparation device of hexafluoroacetone hydrate

A hexafluoroacetone hydrate and preparation device technology, which is applied in the direction of heterocyclic compound preparation, chemical/physical process, physical/chemical process catalyst, etc., can solve the problems of inconvenient storage and transportation, achieve convenient operation, improve production efficiency, high Conversion and selectivity effects

Pending Publication Date: 2020-04-17
TIANJIN CHANGLU CHEM NEW MATERIAL CO LTD
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  • Description
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  • Application Information

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Problems solved by technology

The boiling point of hexafluoroacetone is -27.3°C, it is a colorless and poisonous gas at room temperature, and it is inconvenient to store and transport

Method used

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  • Preparation device of hexafluoroacetone hydrate
  • Preparation device of hexafluoroacetone hydrate

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: The catalyst is a fluorinated ZSM-5 molecular sieve, and the described fluorinated ZSM-5 molecular sieve is prepared in the following manner: after the ZSM-5 molecular sieve is dried, it is added to a tube furnace protected by an inert gas, and then Fluorinated gas CHClF 2 , the fluorination temperature is 120°C, and it can be obtained by pressing into tablets after the reaction is completed. Fill the prepared catalyst into the reaction tank, and the ventilation rate of the HFPO storage tank is 300h -1 , the reaction temperature in the reaction tank is 20-200°C. The reaction results are shown in Table 1. Wherein, comparative catalyst is the TiO of the preparation of US2004186322 as catalyst;

[0017] Table 1

[0018]

[0019] As can be seen from Table 1, according to the method of the present invention, high-purity hexafluoroacetone can be obtained through isomerization of hexafluoropropylene oxide, almost no by-products are formed, the selectivity ...

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Abstract

The invention belongs to the field of fluoride preparation devices, and particularly relates to a preparation device of a hexafluoroacetone hydrate, which comprises an HFPO storage tank, a reaction tank and a deionized water tank which are connected in sequence. The reaction tank is filled with a catalyst; a gas outlet in the upper end of the HFPO storage tank is communicated with a gas inlet in the lower end of the reaction tank; a gas outlet formed in the upper end of the reaction tank is communicated with the deionized water tank through a pipeline; an inverted funnel is arranged at the front end of the pipeline; and a liquid outlet is formed in the lower end of the deionized water tank. According to the preparation device of the hexafluoroacetone hydrate, the prepared hexafluoroacetonecan directly generate the hexafluoroacetone hydrate, intermittent collection can be conducted on the hexafluoroacetone hydrate through the design of a partition plate, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the field of fluoride preparation devices, in particular to a preparation device for hexafluoroacetone hydrate. Background technique [0002] Hexafluoroacetone (CF3COCF3, HFA) is the simplest perfluoroketone compound and also an important fluorine-containing intermediate with a wide range of uses. The boiling point of hexafluoroacetone is -27.3°C, and it is a colorless and poisonous gas at room temperature, which is inconvenient for storage and transportation. The boiling point of hexafluoroacetone trihydrate is 106°C, and it is a stable liquid at room temperature with less toxicity. Therefore, commercial hexafluoroacetone is supplied in the form of hexafluoroacetone trihydrate. Therefore need to provide a kind of preparation device of hexafluoroacetone hydrate. Contents of the invention [0003] The object of the present invention is to provide a kind of preparation device of hexafluoroacetone hydrate. [0004] In order ...

Claims

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Application Information

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IPC IPC(8): C07C45/58C07C49/167B01J29/40
CPCC07C45/58B01J29/40C07C49/167
Inventor 姚素梅陈爽
Owner TIANJIN CHANGLU CHEM NEW MATERIAL CO LTD
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