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Method For Producing Iodine Pentafluoride

A technology of iodine pentafluoride and its manufacturing method, which is applied in the direction of interhalogen compounds, etc., can solve problems such as heat generation and difficulty in controlling the reaction, and achieve the effect of increasing the production speed and simplifying the production

Active Publication Date: 2018-02-16
CENT GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, as long as pure iodine and fluorine are reacted regardless of solid (non-patent document 1), liquid (patent document 1), or gas (patent document 2), there is a possibility that a local reaction occurs and heat is generated, making it difficult to control the reaction.

Method used

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  • Method For Producing Iodine Pentafluoride
  • Method For Producing Iodine Pentafluoride

Examples

Experimental program
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Effect test

Embodiment 1

[0090] Such as figure 1 As shown, liquid iodine pentafluoride 13 with a mass of 3036 g was added to a stainless steel reaction tank 11 with a volume of 2.3 L in which the atmosphere in the tank was replaced with nitrogen, and then solid iodine 12 with a mass of 3710 g was added. The concentration of iodine 12 in liquid iodine pentafluoride 13 at the time of charging was about 55% by weight relative to the weight of iodine pentafluoride 13 and solid iodine 12 combined. As a method of stirring iodine pentafluoride 13 including solid iodine 12 in the liquid phase 15 , the pump 19 is driven to circulate the liquid phase 15 . Supply iodine heptafluoride gas from iodine heptafluoride supply source 16 to liquid phase 15 with a flow rate of 0.6L / min, make iodine heptafluoride gas react with solid iodine 12 in iodine pentafluoride 13 to obtain pentafluoride iodine. During the reaction, the pressure in the reaction vessel 11 was maintained at 93 kPa (absolute pressure). Moreover, it...

Embodiment 2

[0092] As a stirring method, instead of circulating the liquid phase 15 using the pump 19 performed in Example 1, the liquid phase 15 was stirred by rotating the stirrer 20 equipped with a rotating blade at a rotation speed of 100 rpm, and stirring the liquid phase 15 in the same manner as in Example 1 except that Iodine fluoride gas reacts with solid iodine-12. The newly generated amount of iodine pentafluoride was 499 g except for the input before the start of the experiment.

[0093] By reacting iodine in iodine pentafluoride with iodine heptafluoride by stirring with either a pump or a stirrer, heat can be effectively removed, and iodine pentafluoride can be safely and stably produced.

Embodiment 3

[0111] Iodine heptafluoride was synthesized using iodine pentafluoride obtained in Example 1. The specific manufacturing steps are as follows.

[0112] Nickel fluoride (NiF 2 ) (purity 99%, manufactured by Apollo Scientific Limited) was made into pellets (size, 4mm×4mm×2mm). 48 g (0.5 mol) of granular nickel fluoride was filled in a nickel bright annealing tube (22.1 mm inner diameter, 0.3 m length) equipped with an electric heater and a pressure gauge used as a reactor. By heating the bright annealing tube with an electric heater, the temperature of the aforementioned particles used as fillers was brought to 270°C. At this temperature, fluorine (F 2 ) and iodine pentafluoride (IF 5 ) of mixed gas (molar ratio (F 2 / IF 5 )=30.3(F 2 Concentration 96.8% by volume, IF 5 Concentration 3.20% by volume)), and discharged from the other end (outlet).

[0113] At this time, the pressure in the bright annealing tube is set to 66.7kPa (absolute pressure), and the mixed gas is 3...

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Abstract

Provided is a method for producing iodine pentafluoride, the method including the step of producing the iodine pentafluoride by supplying an iodine heptafluoride gas into a reaction vessel having iodine pentafluoride in a liquid phase that includes iodine and reacting the iodine with the iodine heptafluoride. According to this method, high speed production of the iodine pentafluoride can be achieved safely and stably.

Description

technical field [0001] The present invention relates to a method for producing iodine pentafluoride by reacting iodine with iodine heptafluoride, and a method for producing iodine heptafluoride from iodine pentafluoride. Background technique [0002] A method of reacting iodine and fluorine is known as a method of producing iodine pentafluoride useful as a raw material for the production of fluorinating agents and intermediates of fluorine-containing compounds. [0003] For example, Patent Document 1 discloses "a method for producing iodine pentafluoride by direct fluorination of molten iodine". [0004] Disclose in patent document 2: " (1) a kind of manufacture method of iodine pentafluoride is characterized in that: (A) feeds fluorine gas in the iodine of liquid state and makes it react to generate iodine pentafluoride and iodine (B) reacting the vapor mixture with new fluorine gas in the presence of already formed liquid iodine pentafluoride to further generate iodine pe...

Claims

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Application Information

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IPC IPC(8): C01B7/24
CPCC01B7/24
Inventor 长友真圣池田晋也柴山茂朗
Owner CENT GLASS CO LTD
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