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A kind of preparation method and production equipment of iodine pentafluoride

A technology of iodine pentafluoride, fluorine-nitrogen mixed gas, applied in the direction of inter-halogen compounds, etc., can solve the problems of difficult continuous production, low product yield, unstable product quality, etc., and achieves easy automatic control and high product yield. , suitable for large-scale industrial production

Active Publication Date: 2017-02-01
DO FLUORIDE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for preparing iodine pentafluoride, which solves the problems of low product yield, difficult continuous production and unstable product quality in the existing iodine pentafluoride preparation process

Method used

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  • A kind of preparation method and production equipment of iodine pentafluoride
  • A kind of preparation method and production equipment of iodine pentafluoride
  • A kind of preparation method and production equipment of iodine pentafluoride

Examples

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Effect test

Embodiment 1

[0037] The production equipment of the iodine pentafluoride of the present embodiment, as figure 1As shown, it comprises a first reactor 1, a second reactor 2, a separation and rectification device 5, a first iodine heating device 3 and a second iodine heating device 4; the top of the first reactor 1 is provided with the first iodine Feeding pipe 13 and the first fluorine nitrogen inlet pipe 12, one end of the first iodine feeding pipe 13 communicates with the first iodine heating device 3, and the other end (end) goes deep into the bottom of the first reaction kettle 1 inner cavity, and the One end of the first fluorine-nitrogen inlet pipe 12 is communicated with the gas supply system 7, and the other end (end) goes deep into the bottom of the first reactor 1 inner chamber; the top of the second reactor 2 is provided with a second iodine feed pipe 16 With the second fluorine nitrogen inlet pipe 15, one end of the second iodine feeding pipe 16 communicates with the second iodi...

Embodiment 2

[0041] The preparation method of the iodine pentafluoride of the present embodiment uses the production equipment of embodiment 1, specifically comprises the following steps:

[0042] 1) The reactor is vacuumized, and 100kg iodine pentafluoride is added respectively in the first reactor and the second reactor, and solid iodine is added to the first and second iodine heating devices for melting respectively, and the molten iodine passes through the first and second iodine heating devices. One, the second iodine feeding pipe flows into the reactor under the iodine pentafluoride liquid level, the add-on of molten iodine is 10kg (10% of the iodine pentafluoride quality) in each reactor, in the first reactor and the second A mixed system of iodine-containing iodine pentafluoride solution and slurry-like iodine pentafluoride is formed in the reaction kettle, and the temperature of the mixed system is controlled to be 70°C;

[0043] 2) Through the gas supply system and the first fluo...

Embodiment 3

[0050] The preparation method of the iodine pentafluoride of the present embodiment uses the production equipment of embodiment 1, specifically comprises the following steps:

[0051] 1) The reactor is vacuumized, and 100kg iodine pentafluoride is added respectively in the first reactor and the second reactor, and solid iodine is added to the first and second iodine heating devices for melting respectively, and the molten iodine passes through the first and second iodine heating devices. One, the second iodine feeding pipe flows into the reactor under the iodine pentafluoride liquid level, the add-on of molten iodine is 5kg (5% of the iodine pentafluoride quality) in each reactor, in the first reactor and the second A mixed system of iodine-containing iodine pentafluoride solution and slurry-like iodine pentafluoride is formed in the reaction kettle, and the temperature of the mixed system is controlled to be 50°C;

[0052] 2) Through the gas supply system and the first fluori...

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Abstract

The invention discloses a preparation method and production device of iodine pentafluoride. The preparation method comprises following steps: (1) adding iodine pentafluoride and molten iodine respectively into a first reaction kettle and a second reaction kettle to form a mixed system; (2) feeding a mixed gas containing fluorine and nitrogen into the first reaction kettle, feeding the rest mixed gas into the second reaction kettle for reaction, and discharging the rest gas; (3) when the reaction in the first reaction kettle is finished, discharging generated iodine pentafluoride and then preparing the mixed system; (4) feeding the mixed gas containing fluorine and nitrogen into the second reaction kettle, feeding the rest mixed gas into the first reaction kettle for reaction, and discharging the rest gas; (5) when the reaction in the second reaction kettle is finished, discharging generated iodine pentafluoride and then preparing the mixed system; and (6) repeatedly performing the operations from the step (2) to the step (5). The preparation method achieves continuous production of the iodine pentafluoride and increase a utilization ratio of the raw materials. A product is stable in quality and high in yield. Meanwhile, waste of a fluorine resource and environmental pollution are avoided.

Description

technical field [0001] The invention belongs to the technical field of fluorine chemical industry, specifically relates to a preparation method of iodine pentafluoride, and also relates to a production equipment of iodine pentafluoride. Background technique [0002] Iodine pentafluoride (IF 5 ) is a colorless liquid at room temperature, with a relative density of 3.19 (25°C), a melting point of 9.49°C, a boiling point of 100.5°C, and a vapor pressure of 1333Pa. Iodine pentafluoride is a common fluorinating agent and strong oxidizing agent, mainly used in the synthesis of perfluoroalkanes iodide, which is an important raw material for the production of oil-proof, anti-fouling and water-repellent finishing agents. [0003] The main way to produce iodine pentafluoride is to prepare iodine pentafluoride by reacting iodine and fluorine gas. The current main methods include burning iodine in fluorine gas and passing fluorine gas into iodine pentafluoride liquid in which part of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B7/24
CPCC01B7/24
Inventor 李世江李云峰杨华春薛峰峰于贺华刘海霞张凯贾雪枫郑金霞杨水艳
Owner DO FLUORIDE CHEM CO LTD
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