JP2005008543A - Method for producing trifluoroiodomethane and installation therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for producing trifluoroiodomethane at a low cost, which can industrially be performed. <P>SOLUTION: This method for producing the trifluoroiodomethane, comprising reacting trifluoromethane with iodine in the presence of a solid catalyst, is characterized by reacting the trifluoromethane with the iodine in a gas phase, while moving the solid catalyst in a reactor. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a method for producing trifluoromethane iodide by reacting trifluoromethane and iodine in the presence of a solid catalyst, and reacting trifluoromethane and iodine while moving the solid catalyst in the reactor. The present invention relates to a method for producing trifluoromethane iodide and an apparatus therefor.
[0002]
[Prior art]
[Non-Patent Document 1] Journal of Chemical Society, page 584 (1951), J. Chem. Soc.
[Non-Patent Document 2] Journal of Organic Chemistry (J.
Org. Chem. ) Page 833 (1967)
[Non-Patent Document 3] Journal of Organic Chemistry (J.
Org. Chem. ) Page 2016 (1958)
[Patent Document 1] JP-A-2-262529 [Patent Document 2] JP-A-52-68110 [Patent Document 3] JP-A-10-204006
Iodinated trifluoromethane has a short atmospheric life, and the effects of ozone layer destruction and global warming are extremely small. Therefore, it is expected to be used not only as a halon fire extinguisher but also as an alternative gas such as CF4, C2F6 and SF6. Yes. Furthermore, it is a very useful compound as a fluorine-containing synthetic intermediate for surfactants, agricultural chemicals, pharmaceuticals and the like as a raw material for introducing a trifluoromethyl group.
[0004]
Conventionally, several methods for producing trifluoromethane iodide are known. For example, Non-Patent Document 1 and Non-Patent Document 2 report a method of reacting an alkali metal salt or silver salt of trifluoroacetic acid with iodine. Furthermore, Non-Patent Document 3 and Patent Document 1 report a method of reacting trifluoroacetyl halide with potassium iodide or lithium iodide.
[0005]
However, these conventional methods are all methods using trifluoroacetic acid and its derivatives as raw materials. These raw materials are expensive. For example, when an alkali metal salt of trifluoroacetic acid is used as a raw material, the yield is about 70%, which is not economical. In order to improve this yield, expensive silver salts are often used, but are not necessarily advantageous as an industrial process.
[0006]
Patent Document 2 discloses a method for producing trifluoromethane iodide by the reaction of trifluoromethane and iodine in the presence of activated carbon or a solid catalyst in which an alkali metal or alkaline earth metal salt is supported on activated alumina. It is disclosed. Further, in Patent Document 3, trifluoromethane and iodine are reacted in the presence of a solid catalyst in which an alkali metal or alkaline earth metal salt is supported on a carbonaceous support while oxygen is added to the reaction system, and the catalyst lifetime is increased. A method for producing trifluoromethane iodide that enables improvement of the above and recycling of recovered iodine is disclosed.
[0007]
However, the present inventors have further studied based on these reports. As a result, in order to carry out this reaction industrially, it is necessary to use highly corrosion-resistant materials in the reactor in order to handle iodine at high temperatures, which has the disadvantage of high equipment costs, simplifying the equipment structure and process. It has been found that it is desirable to develop a reaction method that can reduce equipment and production costs.
[0008]
[Problems to be solved by the invention]
In the method for producing iodotrifluorotrifluoromethane disclosed in the aforementioned report, the raw material trifluoroacetic acid and its derivatives are expensive, and it is necessary to use an expensive silver salt in order to increase the yield. On the other hand, in the production method using trifluoromethane as a raw material, it has been desired to develop a reaction method capable of reducing the reactor cost.
[0009]
That is, the problem to be solved by the present invention is to develop a reaction method capable of reducing equipment and production cost, and to provide an inexpensive method for producing trifluoromethane iodide and an apparatus thereof that can be industrially implemented.
[0010]
[Means for Solving the Problems]
In view of the present situation, the present inventors diligently studied a method for producing iodotrifluorotrifluoromethane in which trifluoromethane and iodine are reacted in the presence of a solid catalyst. As a result, as an industrial method for producing trifluoromethane iodide, local heat generation in the reactor is extremely suppressed when trifluoromethane and iodine are reacted in the presence of the solid catalyst while moving the solid catalyst in the reactor. Furthermore, it has been found that iodine can be recovered with high purity and can be recycled. As a result, the facility can be simplified and the manufacturing cost can be reduced, and the present invention has been completed.
[0011]
That is, the present invention is a method for producing trifluoromethane iodide by reacting trifluoromethane and iodine in the presence of a solid catalyst, while moving the solid catalyst in the reactor, The present invention relates to a method for producing trifluoromethane iodide and an apparatus therefor characterized by reacting.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
According to the present invention, in the method for producing trifluoromethane iodide by reacting trifluoromethane and iodine in the presence of the solid catalyst, the trifluoromethane and iodine are reacted while the solid catalyst is moved in the reactor. Thus, local heat generation in the reactor is suppressed, and the recovered iodine can be recycled without adding oxygen, and the equipment can be simplified. As a result, it is possible to industrially produce inexpensive trifluoromethane.
[0013]
Hereinafter, the present invention will be described in more detail.
Although the solid catalyst in this invention is not specifically limited, For example, what is manufactured by the method described in patent document 3 or cited can be used.
[0014]
Examples of such a solid catalyst include a catalyst in which a metal salt is supported on a carbonaceous carrier, and more specifically, a solid catalyst in which an alkali metal and / or alkaline earth metal salt is supported on activated carbon. it can. The solid catalyst loading method is not particularly limited. For example, an impregnation loading method in which a carrier is impregnated with a metal salt solution under normal pressure or reduced pressure, and the carrier is immersed in a metal salt solution and then stirred. Add the precipitating agent while adding a precipitating agent to the metal salt solution to form a precipitate, add the precipitant to the metal salt solution, and then add the carrier to the kneaded kneading method. That's fine.
[0015]
In the present invention, the movement means that the solid catalyst moves up and down, left and right in the reactor. Furthermore, it is not necessary for the entire solid catalyst to move, and only a part of the solid catalyst may move. Further, the movement is not particularly limited, and may be moved as necessary, and may be intermittent or continuous, or may be a movement state combining them. Unnecessarily intense movement of the solid catalyst is not preferable because the catalyst is worn and pulverized.
[0016]
In the present invention, the raw materials used are trifluoromethane and iodine. The purity of trifluoromethane is not particularly limited, but it is preferable to use 97% or more. As the iodine, a normal commercial product can be used.
[0017]
Although the raw material supply method is not particularly limited, a raw material mixed in advance in a reaction tube maintained at a predetermined reaction temperature is supplied as a gas. Since iodine is usually a solid, it is heated, melted, and trifluoromethane is bubbled into liquid iodine to generate a mixed gas of trifluoromethane and iodine, and a predetermined amount of trifluoromethane and iodine are converted into the reaction system in the gas phase. It is good to supply.
[0018]
In the present invention, when oxygen is added to the reaction system, the life of the solid catalyst can be extended. The oxygen to be used is not particularly limited, but pure oxygen or air may be used, and it may be diluted with a gas inert to the reaction, for example, nitrogen, helium, argon or the like, if necessary. Further, the amount of addition is not particularly limited, but the conditions described or cited in Patent Document 3 may be appropriately selected. For example, the volume ratio of oxygen to trifluoromethane (oxygen / trifluoromethane) may be appropriately selected within the range of 0.01 to 1.0.
[0019]
In the present invention, the type of the reactor is not particularly limited as long as it is a structure that can move the solid catalyst, but a type having a stirring device for stirring the solid catalyst filled in the reaction vessel, A rotary kiln type cylindrical reactor having a structure in which the main body of the reactor rotates and the solid catalyst can be moved can be mentioned.
[0020]
An embodiment of a reactor 1 equipped with a stirring device will be described with reference to FIG. The reactor 1 is filled with a solid catalyst 2, and a stirrer 4 is provided for stirring and moving the solid catalyst. A source gas supply port 5 for supplying source gas is provided at the upper part of the reactor 1, and a reaction gas outlet 6 for taking out the reaction gas is provided at the lower part of the reactor 1. In addition, it can prevent that the solid catalyst 2 obstruct | occludes the reaction gas outlet 6 by providing the eye plate 3 in the reaction container lower part. Although the solid catalyst 2 is not shown, it may be heated to a predetermined temperature by an appropriate heating means such as a heater. The solid catalyst 2 stirred and moved by the stirrer 4 reacts with the raw material gas trifluoromethane and iodine to contact with each other to produce a reaction product, iodotrifluorotrifluoromethane.
[0021]
FIG. 2 shows an embodiment of a rotary kiln type cylindrical reactor 7. A solid catalyst 2 is filled in the rotating cylindrical reactor body 8. Although not shown, the cylindrical reactor body 8 is rotated by an appropriate driving means. Rotary joints 9 and 10 are provided at both ends of the cylindrical reactor main body 8, a raw material gas supply port 5 is provided at the upstream rotary joint 9, and a reaction gas outlet 6 is provided at the downstream rotary joint 10. Is provided. By providing the eye plate 3 as in FIG. 1, the solid catalyst 2 is prevented from closing the reaction gas outlet. Although not shown, a heater is provided as a heating means to heat the solid catalyst 2. In FIG. 2, a baffle plate 11 is provided in the cylindrical reactor main body 8 in order to prevent the solid catalyst 2 from shifting and to make the stirring movement more efficient. The solid catalyst 2 that is stirred and moved by the rotating cylindrical reactor main body 8 and the raw material gases trifluoromethane and iodine are brought into contact with each other to react with each other to produce a reaction product, iodotrifluorotrifluoromethane.
[0022]
In order to prevent the solid catalyst from being worn and pulverized as much as possible when the solid catalyst moves, a structure in which no mechanical force is applied to the solid catalyst is preferable. For example, a rotary kiln type cylindrical reactor is preferable. Furthermore, it is preferable to install a baffle plate usually attached to the rotary kiln in order to prevent the displacement of the solid catalyst and to make the movement efficient inside the cylindrical reactor.
[0023]
In the present invention, the reaction can be carried out using this rotary kiln type cylindrical reactor, for example, as follows. That is, the cylindrical reactor filled with the previously prepared solid catalyst is rotated and heated to a predetermined temperature. What is necessary is just to select suitably as predetermined temperature within the range of 300 to 750 degreeC, Preferably it is 350 to 600 degreeC as temperature of the catalyst layer in a reactor.
[0024]
The rotation of the cylindrical reactor is not particularly limited, and may be rotated as necessary, and may be intermittent or continuous, or a combination of them.
[0025]
Next, the raw material is continuously supplied in the form of a gas in the reactor heated to a predetermined temperature and reacted.
[0026]
In the present invention, the amount of the source gas supplied to the reactor is preferably such that the linear velocity of the total amount of source gas is 30 cm / min or more and 500 cm / min or less in terms of gas in a standard state. If it is less than 30 cm / min, the selectivity of CF 3 I is lowered, a by-product is produced, and the tendency of the purity of the unreacted iodine to be recovered is increased. On the other hand, if it exceeds 500 cm / min, the reaction heat in the reactor increases, and the tendency for the selectivity of CF3I to decrease increases.
[0027]
Furthermore, in the present invention, the catalyst can be replenished and allowed to react in order to compensate for the decrease in the catalyst due to wear, pulverization or combustion that occurs when the solid catalyst moves. The method for replenishing the solid catalyst is not particularly limited. For example, when a rotary kiln type cylindrical reactor is used, the solid catalyst can be replenished through a rotary joint. The solid catalyst may be replenished continuously or intermittently during the reaction, or once the reaction is stopped, the solid catalyst is replenished, and then the reaction may be started again.
[0028]
In the present invention, the reaction conditions, the raw material supply method, and the treatment of the reaction gas that has passed through the reaction tube are not particularly limited, but the reaction conditions described or cited in Patent Document 3 may be appropriately selected. . For example, (reaction conditions may be appropriately selected within the reaction temperature range and raw material gas supply range as described above, using the solid catalyst prepared as described above. Although not limited, for example, the reaction gas that has passed through the reaction tube is cooled and separated into a gas and a solid, which are separated into unreacted trifluoromethane and produced trifluoromethane iodide by pressure distillation according to a conventional method. Unreacted trifluoromethane is recovered and reused as a raw material, and trifluoromethane iodide becomes a product.Distillation can be carried out either batchwise or continuously, whereas solids Is unreacted iodine.
[0029]
According to the present invention, unreacted iodine can be recycled and used because of its high purity. Unreacted iodine refers to iodine molecules excluding iodine atoms converted to trifluoromethane iodide and pentafluoroethane iodide which is a byproduct. In the present invention, what is specific is that unreacted iodine can be recovered as highly pure iodine molecules. In the case where oxygen is not added, impurities in the form of paste are generated unless the solid catalyst is moved and mixed with the collected iodine, making it impossible to recycle. However, when the solid catalyst is moved and reacted, unreacted iodine can be recovered as high-purity iodine molecules and recycled. This is considered that the production | generation of the paste-like impurity estimated as a high molecular weight polymer was suppressed by the movement of a solid catalyst. On the other hand, in the case where oxygen is added, the generation of impurities, which is thought to be due to local heat generation in the reactor, increases, but when the solid catalyst moves, local heat generation in the reactor is suppressed, so that the trifluoromethane iodide is reduced. It is estimated that the selectivity is improved and the generation of by-products is suppressed, and unreacted iodine can be recovered with high purity. From the above, by reacting while moving the solid catalyst, unreacted iodine is recovered and can be recycled without purification, eliminating the need for a purification step for recovered iodine, which is economical This makes it possible to reduce the equipment and manufacturing costs.
[0030]
Examples of the material of the reaction apparatus in the present invention include carbon steel, cast iron, stainless steel, copper, nickel, and hastelloy, but hastelloy is preferable.
[0031]
【Example】
EXAMPLES Hereinafter, although an Example demonstrates this invention concretely, this invention is not limited only to these Examples.
[0032]
For simplification of expression, the raw materials trifluoromethane, iodine and oxygen and each product are abbreviated as follows.
[0033]
Trifluoromethane; CHF3
Oxygen; O2
Iodine; I2
Trifluoromethane iodide; CF3I
The conversion, selectivity, and linear velocity shown in the following examples are expressed by the following equations.
Conversion rate (%) = (number of moles of converted CHF3 / number of moles of supplied CHF3) × 100
Selectivity (%) = (moles of CF3I / moles of converted CHF3) × 100
Linear velocity (cm / min) = total supply amount of source gas (cc / min) / reaction tube cross-sectional area (cm ² )
The raw material gas supply amounts were all calculated based on the values converted into gases in the standard state.
[0034]
Reference example (catalyst preparation)
To a solution of 20.0 g of potassium nitrate and 39.2 g of cesium nitrate dissolved in 500 g of water, 400 g of granular activated carbon (manufactured by Takeda Pharmaceutical Co., Ltd., Shirasagi C2) was added and immersed overnight. Since a small amount of the solution remained after immersion, water was removed by gradually reducing the pressure using a rotary evaporator. Thereafter, the activated carbon was transferred to a vat and pre-dried at 90 to 110 ° C. for 6 hours in a dryer. After preliminary drying, the catalyst was prepared by filling the dryer and calcining at 150 ° C. for 1 hour under a flow of nitrogen gas. For potassium nitrate and cesium nitrate, commercially available reagents were used as they were.
[0035]
Example 1
A vertical reactor made of Hastelloy C having an inner diameter of 55 mm and equipped with a stirring blade and a thermometer as a stirring device was charged with 350 cc of a part of the catalyst prepared in the reference example. Thereafter, the temperature of the catalyst layer in the reactor is increased to 440 ° C. while rotating the stirring blade 10 times per minute, and a mixed gas of CHF3 = 1600 cc / min and I2 = 400 cc / min is supplied from the upper part of the reactor. The reaction gas was continuously withdrawn from the lower part of the reactor. The linear velocity at this time was 84 cm / min. As for iodine, CHF3 was bubbled into liquid iodine to generate a mixed gas of trifluoromethane and iodine and supplied to the reaction system.
[0036]
After the reaction, the reaction gas was cooled through a cooler and separated into a gas and a solid, and then the gas was analyzed by gas chromatography. As a result of analyzing the reaction gas 10 hours after the start of the reaction, the conversion of CHF3 = 20% and the selectivity of CF3I = 58%. Further, as a result of measuring the temperature of the catalyst layer in the reactor, no exotherm was observed. On the other hand, the solid obtained by cooling and separating the reaction gas is a blackish purple plate-like crystal having a metallic luster, and as a result of analyzing the iodine content according to Japanese Industrial Standard K8190, the purity of the iodine content is 96 to 98%. .
[0037]
Example 2
The reaction was carried out by the same apparatus and method as in Example 1 except that the raw material gas was a mixed gas of CHF3 = 1500 cc / min, I2 = 375 cc / min, O2 = 120 cc / min, and post-treatment was performed. The linear velocity at this time was 84 cm / min.
[0038]
As a result of analyzing the reaction gas 10 hours after the start of the reaction, the conversion of CHF3 = 20% and the selectivity of CF3I = 58%. As a result of measuring the temperature of the catalyst layer in the reactor, an exotherm of about 20 ° C. was observed, but it was not a local exotherm. On the other hand, the solid obtained by cooling and separating the reaction gas was a blackish purple plate-like crystal having a metallic luster. As a result of analysis in the same manner as in Example 1, the purity was iodine content 98 to 99%.
[0039]
Example 3
Except for using a Hastelloy C rotary kiln horizontal reactor with an inner diameter of 55 mm equipped with a baffle plate and thermometer, the reactor body was rotated 50 times per minute to move the solid catalyst in exactly the same manner as in Example 1. Reaction was performed.
[0040]
As a result of analyzing the reaction gas 10 hours after the start of the reaction, the conversion of CHF3 = 19% and the selectivity of CF3I = 60%. Further, as a result of measuring the temperature of the catalyst layer in the reactor, no exotherm was observed. On the other hand, the solid obtained by cooling and separating the reaction gas was a blackish purple plate-like crystal having a metallic luster. As a result of analysis in the same manner as in Example 1, the purity was iodine content 98 to 99%.
[0041]
Example 4
The reaction was performed under the same reaction conditions as in Example 2 using the same reaction apparatus as in Example 3. As a result of analyzing the reaction gas 10 hours after the start of the reaction, the conversion rate of CHF3 = 22% and the selectivity of CF3I = 59%. Moreover, as a result of measuring the temperature of the catalyst layer in the reactor, only an exotherm of 5 ° C. was observed. On the other hand, the solid obtained by cooling and separating the reaction gas was a blackish purple plate-like crystal having a metallic luster. As a result of analysis in the same manner as in Example 1, the purity was iodine content 98 to 99%.
[0042]
Example 5
The reaction was performed in exactly the same apparatus and conditions as in Example 4 except that the composition of the raw material gas was kept constant and the amount of the raw material gas was changed so that the linear velocity was 35 cm / min. As a result of analyzing the reaction gas 10 hours after the start of the reaction, the conversion of CHF3 = 26% and the selectivity of CF3I = 55%. Further, as a result of measuring the temperature of the catalyst layer in the reactor, an exotherm of 10 ° C. was observed, but it was not a local exotherm. On the other hand, the solid obtained by cooling and separating the reaction gas was a blackish purple plate-like crystal having a metallic luster, which was analyzed in the same manner as in Example 1. As a result, the iodine content was 96 to 98% pure.
[0043]
Example 6
The reaction gas was analyzed under the same conditions as in Example 4 except that the composition of the raw material gas was kept constant and the amount of the raw material gas was changed so that the linear velocity was 450 cm / min. As a result of analyzing the reaction gas 10 hours after the start of the reaction, the conversion of CHF3 = 16% and the selectivity of CF3I = 62%. As a result of measuring the temperature of the catalyst layer in the reactor, an exotherm of 25 ° C. was observed, but it was not a local exotherm. On the other hand, the solid obtained by cooling and separating the reaction gas was a blackish purple plate-like crystal having a metallic luster, which was analyzed in the same manner as in Example 1. As a result, the iodine content was 96 to 98% pure.
[0044]
Example 7
The reaction was started under exactly the same conditions as in Example 4, and the catalyst was replenished so that the amount of catalyst was ± 20% of the initial charged catalyst amount every 20 hours, and continuous operation was performed for 150 hours. The reaction gas was analyzed every 10 hours. As a result, the conversion rate of CHF3 = 18-22% and the selectivity of CF3I = 56-59% were stable. Further, the temperature of the catalyst layer in the reactor was also measured every 10 hours, and as a result, only an exotherm of 5 ° C. was observed. On the other hand, the solid obtained by cooling and separating the reaction gas was a blackish purple plate-like crystal having a metallic luster. As a result of analysis in the same manner as in Example 1, the purity was iodine content 98 to 99%.
[0045]
Example 8
The reaction was performed in the same manner as in Example 4 except that the unreacted iodine collected in Example 7 was used as the iodine to be used, and the reaction gas was analyzed. As a result of analyzing the reaction gas 10 hours after the start of the reaction, the conversion of CHF 3 = 21% and the selectivity of CF 3 I = 58%. Moreover, as a result of measuring the temperature of the catalyst layer in the reactor, only an exotherm of 5 ° C. was observed. On the other hand, the solid obtained by cooling and separating the reaction gas was a blackish purple plate-like crystal having a metallic luster. As a result of analysis in the same manner as in Example 1, the purity was iodine content 98 to 99%. From this, it was found that the recovered iodine can be recycled.
[0046]
Comparative Example 1
The reaction was conducted in the same manner as in Example 1 except that stirring was not performed, and the reaction gas was analyzed. As a result of analyzing the reaction gas 10 hours after the start of the reaction, the conversion of CHF3 = 19% and the selectivity of CF3I = 52%. Further, as a result of measuring the temperature of the catalyst layer in the reactor, no exotherm was observed. On the other hand, the solid obtained by cooling and separating the reaction gas is a pasty viscous substance, and as a result of analysis in the same manner as in Example 1, it has a purity of iodine content of 75 to 78%, which is less pure than the case of stirring. Met.
[0047]
Comparative Example 2
The reaction was performed in the same manner as in Example 2 except that stirring was not performed, and the reaction gas was analyzed. As a result of analyzing the reaction gas 10 hours after the start of the reaction, the conversion of CHF3 = 25% and the selectivity of CF3I = 42%. Moreover, as a result of measuring the temperature of the catalyst layer in the reactor, a large local heat generation of 100 ° C. was observed. On the other hand, the solid obtained by cooling and separating the reaction gas is a black purple lump, and as a result of analysis in the same manner as in Example 1, it has a purity of iodine content of 90 to 93%, which is lower in purity than the case of stirring. there were.
[0048]
Comparative Example 3
The reaction was performed in exactly the same manner as in Example 8 except that iodine with a purity of 75 to 78% recovered in Comparative Example 1 was used. However, CHF3 was bubbled into liquid iodine to generate a mixed gas of CHF3 and iodine. However, iodine was not sufficiently gasified even when bubbled, and a predetermined amount of iodine was supplied to the reactor. I couldn't. Therefore, using the iodine collected in Comparative Example 1, an attempt was made to purify by distillation or sublimation. As a result, a large amount of paste-like impurities that seem to be a high molecular weight polymer was dispersed on the iodine melt, and it was difficult to gasify iodine, and purification was impossible.
[0049]
【The invention's effect】
According to the present invention, trifluoromethane iodide can be produced industrially at low cost.
[0050]
Moreover, since the unreacted iodine in the method of the present invention has a high purity, it can be recovered and reused.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view showing an embodiment of a reactor equipped with a stirring device.
FIG. 2 is a schematic cross-sectional view showing an embodiment of a rotary kiln type reactor.
[Explanation of symbols]
2 Solid catalyst 3 Eye plate 4 Stirrer 5 Source gas supply port 6 Reactive gas outlet 8 Cylindrical reactor body 9, 10 Rotary joint 11 Baffle plate

Claims (6)

In a method for producing trifluoromethane iodide by reacting trifluoromethane and iodine in the presence of a solid catalyst, the method comprises reacting trifluoromethane and iodine in a gas phase while moving the solid catalyst in the reactor. A process for producing trifluoromethane iodide. The method for producing trifluoromethane iodide according to claim 1, wherein the reaction is performed while adding oxygen to the reaction system. The method for producing trifluoromethane iodide according to claim 1 or 2, wherein the main body of the reactor is rotated using a rotary kiln type reactor in order to move the solid catalyst. The method for producing trifluoromethane iodide according to claim 1 or 2, wherein the means for moving the solid catalyst is a stirring means. A cylindrical reaction vessel that rotates to move the solid catalyst, a raw material gas supply port for supplying gaseous trifluoromethane and iodine to the cylindrical reactor, and a reaction gas outlet for extracting the reactant trifluoromethane iodide are provided. An apparatus for producing trifluoromethane iodide. A reaction vessel equipped with a stirring means for moving the solid catalyst in the reaction vessel, a raw material gas supply port for supplying vapor phase trifluoromethane and iodine, and a reaction gas outlet for taking out the reactant trifluoromethane iodide. An apparatus for producing trifluoromethane iodide, comprising:

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