JP2000335905A - Apparatus for chlorinating metal, and method for producing metal chloride - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for producing a nickel chloride gas usable for a nickel powder-producing step for producing the nickel powder without using anhydrous nickel chloride inconvenient to treatment as a starting material at a reducing step, and capable of heightening the contacting efficiency of metal nickel with chlorine gas. SOLUTION: This apparatus for chlorinating a metal has a metal raw material-packing part to which a metal raw material is charged from a metal raw material-charging opening 2, formed in a chlorination furnace 1. A partition 5 with a face having both of a region 5a having gas-flowing holes bored therein, and a region 5b having no gas-flowing holes bored therein is installed at the position in the vicinity of the metal raw material-packing part. The passage of the gas in the chlorination furnace 1 is changed by turning the partition 5, to prevent the decrease of the treating rate caused by the blocking of the gas passage in the chlorination furnace 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to Ni, Cu, Ag suitable for various uses such as a conductive paste filler used for electronic parts and the like, a material for forming an internal electrode of a multilayer ceramic capacitor, a Ti material bonding material, and a catalyst. The present invention relates to an apparatus and a method for producing a metal chloride for producing a metal chloride used as a raw material for metal powders such as Co and Co.

[0002]

2. Description of the Related Art With an increase in demand for multilayer ceramic capacitors, nickel powder used for internal electrodes of multilayer ceramic capacitors has been spotlighted. Since this multilayer ceramic capacitor has a high number of layers per unit volume,
It is characterized by its large capacity despite its small size.

[0003] With the increase in the number of laminated ceramic capacitors, fine nickel powder used for the internal electrodes of the capacitors has been required. Specifically, the nickel powder used for the multilayer ceramic capacitor is required to be spherical and have a particle size of about 0.1 to 1.0 μm.

[0004] As a method of producing nickel powder, nickel chloride is vaporized, and the generated nickel chloride gas is reduced with hydrogen gas. Alternatively, chlorine gas is caused to act on crude metal nickel to produce nickel chloride gas. A method is known in which this nickel gas is subsequently reduced with hydrogen gas to obtain metallic nickel powder. That is, in the former method,
On the other hand, solid nickel chloride is used as a starting material in the reduction step. In the latter method, nickel chloride gas is generated and then reduced as a gas without being solidified.

Here, the process of producing the nickel powder is represented by the following two chemical reaction formulas.

[0006]

(Equation 1)

[0007]

(Equation 2)

The former method has a problem that it is necessary to prepare anhydrous nickel chloride, and it is necessary to handle it so as not to absorb moisture. This is because if moisture is present in the nickel chloride, an oxide is generated and adheres to the inner wall of the reduction device, thereby blocking the gas flow path.

As the latter method, a method for continuously supplying crude metal nickel as a raw material is disclosed in Japanese Patent Laid-Open No. 6-122906.
However, such a method has a problem that the gas passage is easily blocked by coarse nickel particles.
There has been a demand for a stable and continuous supply method of crude metal nickel.

[Problems to be solved by the invention]

In view of the above circumstances, an object of the present invention is to solve the following problems. That is, an object of the present invention is to provide a nickel chloride gas producing apparatus used in a nickel powder producing step of producing nickel powder without using inconvenient anhydrous nickel chloride as a starting material in a reduction step. An apparatus for continuously producing nickel chloride gas by reacting metallic nickel with chlorine gas. To provide a nickel chloride gas producing apparatus capable of increasing the contact efficiency between metallic nickel and chlorine gas. An object of the present invention is to provide a metal nickel gas producing apparatus which is hard to suspend on a shelf.

[0011]

According to the first aspect of the present invention, there is provided a metal chlorination apparatus for chlorinating a metal, wherein the metal chlorination apparatus converts a metal supplied therein into a salt. A chlorine material inlet for supplying metal into the chlorination furnace, a chlorine gas inlet for supplying chlorine gas into the chlorination furnace, and a metal chloride. A chloride gas outlet for discharging gas outside the chlorination furnace;
Is disposed in the chlorination furnace, and a metal raw material charging section to which a metal raw material is supplied from the metal raw material charging port is formed, and the inside of the chlorination furnace is divided into a position adjacent to the metal raw material charging section. The problem is solved by providing the partition plate so as to perform the operation.

At this time, it is preferable that the partition plate has a surface provided with a region where the gas flow holes are formed and a region where the gas flow holes are not formed. further,
It is preferable that the partition plates are provided on both sides of the metal raw material filling section, and the partition plates provided on both sides are connected by a rotating shaft. Further, it is preferable that the partition plates provided on both sides are fixed to the rotating shaft so that the phases of the regions where the gas flow holes are formed are different from each other.

Further, it is preferable that the partition plate is provided so as to be movable in a length direction of the rotation shaft. Further, it is preferable that a region of the partition plate where the gas flow holes are formed is configured so as to occupy one third to two thirds of a plane of the partition plate in a specific region of the partition plate. A differential pressure detecting device may be provided at a predetermined position in the chlorination furnace.

Further, a plurality of the metal raw material inlets and a plurality of the metal raw material filling portions may be provided, and the partition plates may be provided on both sides of each of the plurality of metal raw material filling portions. . A stirrer provided with a rotating shaft that is rotationally driven by the driving device and at least one stirring blade fixedly provided near the tip of the rotating shaft is provided, and the stirring device has at least one of the stirring blades. The rotating shaft may be arranged at the metal material input port so as to be located at the metal material charging section. The metal raw material inlet is provided at an upper portion of the metal raw material filling section, the rotating shaft of the stirring device is formed so as to be movable in a vertical direction, and the stirring blade is arranged at an upper position. You may comprise so that most of the opening parts of a metal raw material inlet may be closed.

According to the eleventh aspect of the present invention, there is provided a metal chloride producing method for producing a metal chloride gas by salifying a metal, wherein the metal is contacted with the chlorine gas in a chlorine furnace. A chlorination step of continuously generating a metal chloride gas, and a gas flow path changing step of changing a gas flow path by a gas flow path adjusting member disposed in the chlorination furnace, wherein the gas flow path changing step Is performed simultaneously with the above-mentioned salification step.

At this time, the gas flow path is changed by rotating a partition plate having a surface having a region in which gas flow holes are formed and a region in which gas flow holes are not formed. It is preferable to set to. Further, it is preferable that the gas flow path changing step is performed when the measured value of the differential pressure in the chlorination furnace is a predetermined value. Further, it is preferable to provide a stirring step of stirring the metal charged in the chlorination furnace. Further, at this time, by moving the partition plate in a direction perpendicular to the surface, or by a stirrer, or by moving the partition plate in a direction perpendicular to the surface and by a stirrer, stirring is performed. It is preferable to configure.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION A metal chlorination apparatus according to the present invention comprises:
A chlorination furnace 1 for chlorinating a metal supplied therein is provided. The chlorination furnace 1 has a metal raw material inlet 2 for supplying metal into the chlorination furnace 1, a chlorine gas inlet 3 for supplying chlorine gas into the chlorination furnace 1, and a chlorination furnace for supplying metal chloride gas. 1 and a chloride gas discharge port 4 for discharging to the outside.

In the chlorination furnace 1, a metal raw material charging section 10 to which a metal raw material is supplied from a metal raw material inlet 2 is formed.
In the chlorination furnace 1, the partition plates 5 </ b> L, 5 </ b> L are divided so as to divide the inside of the chlorination furnace 1 at a position adjacent to the metal raw material charging section 10.
R is provided. The partition plate 5 has a surface provided with a region 5a in which the gas flow holes 9 are formed and a region 5b in which the gas flow holes 9 are not formed.

The partition plates 5L and 5R are provided in the metal raw material filling section 1
0, provided on both sides, and partition plates 5 provided on both sides.
L and 5R are connected by a rotating shaft 6. The partition plates 5L and 5R provided on both sides are fixed to the rotating shaft 6 such that the phases of the regions 5a where the gas flow holes 9 are formed are different from each other.

With this configuration, the chlorination furnace 1
Within, as the chloride reaction of nickel progresses, the nickel particles form a bridge, and even when the hollow portion in the nickel layer of the metal material filling portion and the closed portion of the gas flow path are formed,
By rotating the partition plates 5L and 5R, a new gas flow path is secured, and the nickel chloride reaction can be continued.

The partition plates 5L and 5R are provided so as to be movable in the longitudinal direction of the rotating shaft 6. Rotating shaft 6 to rotating shaft 6
Moving in the length direction of the metal raw material filling section 1
Since the nickel particles inside the metal raw material 0 can be agitated, it is possible to eliminate the clogging of the cavity and the gas flow path of the nickel layer formed inside the metal raw material filling portion 10. As a result, nickel chloride can be produced continuously. Also, since the contact efficiency between chlorine and metallic nickel can be increased,
The production efficiency of nickel chloride can be increased. Therefore, generation of unreacted chlorine gas can be prevented. Further, by moving the rotating shaft 6 in the longitudinal direction of the rotating shaft 6, a space for filling the metal material can be arbitrarily set.

The region 5a of the partition plate 5 where the gas flow holes are formed is a specific region of the partition plate 5 and is one of the planes of the partition plate 5.
Occupies a region 5a of ３ to ／. With this configuration, when the rotation shaft 6 is rotated, the flow path of the chlorine gas can be changed to a different route.

At a predetermined position in the chlorination furnace 1, a differential pressure detecting device 11 is provided. By providing the differential pressure detecting device 11, it is possible to know whether or not the hollow of the nickel layer and the blockage of the gas flow path are formed inside the metal material filling section 10.

Further, the metal chlorination apparatus according to the present invention is provided with a plurality of metal raw material inlets 2A and 2B and a plurality of metal raw material filling sections 10A and 10B. On each side, a partition plate 5L
A, 5RA, 5LB, and 5RB are provided.

As described above, the plurality of metal material filling sections 10
By providing A and 10B, even if one of the metal material filling portions becomes short of raw material, the other metal material charging portion can cover the material and charge during that time. That is, in the event that the metal raw material charging unit 10A fails, the amount of nickel particles is insufficient with respect to the amount of chlorine gas.
The complete consumption of chlorine gas can be achieved by reacting the nickel particles with the inside of the metal material filling section 10B.

The metal chlorination apparatus according to the present invention is provided with a stirrer 7 through the metal raw material inlet 2. The stirring device 7 includes a rotating shaft 16 that is rotationally driven by a driving device.
And at least one stirring blade 15 fixed near the tip of the rotating shaft 16. In this stirring device 7, a rotating shaft 16 is disposed at the metal material input port 14 so that at least one of the stirring blades 15 is located in the metal material charging section 10.

As described above, by providing the stirring device 7 such that at least one of the stirring blades 15 is located at the metal material filling section 10, when the metal material in the metal material filling section 10 forms a bridge, Even when the gas flow path is closed, the metal raw material in the metal raw material filling section 10 can be stirred, so that the bridge is broken and the gas flow path can be secured. In addition, it is possible to increase the filling rate of metallic nickel in the metallic material filling section 10. Furthermore, since the stirring blade 15 is arranged at a position where the raw nickel particles fall, the impact when the raw nickel particles fall into the chlorination furnace 1 can be reduced.

In the metal chloride production method according to the present invention, the following gas flow path changing step is performed simultaneously with the chloride step. That is, the chlorination step is a step of continuously generating a metal chloride gas by bringing chlorine gas into contact with a metal in the chlorination furnace 1, and the gas flow path changing step is provided in the chlorination furnace 1. Is a step of changing the gas flow path by using the gas flow path adjusting member 5.

In the method for producing a metal chloride according to the present invention, the partition plate 5 having the surface provided with the region 5a in which the gas circulation holes are drilled and the region 5b in which the gas circulation holes are not drilled is rotated. Then, the gas flow path is changed. When the measured value of the differential pressure in the chlorination furnace 1 is a predetermined value, a gas flow path changing step is performed.

A stirring step for stirring the metal charged in the chlorination furnace 1 is provided. This stirring is performed by moving the partition plate 5 in the direction perpendicular to the surface, by the stirring device 7, or by moving the partition plate 5 in the direction perpendicular to the surface and by the stirring device 7.

[0031]

(Embodiment 1) An embodiment of the present invention will be described below with reference to the drawings. The members, arrangements, and the like described below do not limit the present invention, and can be variously modified within the scope of the present invention. The metal salting apparatus according to the present embodiment is an apparatus for salting metal nickel particles to generate nickel chloride gas, and includes a chlorine furnace 1, a metal raw material inlet 2, a chlorine gas inlet 3, a chloride gas outlet 4, The partition plate 5, the partition plate rotating shaft 6, and the stirring device 7 are main components.

As shown in FIG. 1, a chlorine gas inlet 3 for supplying chlorine gas into the inside of the chlorination furnace 1 is provided at the upper left of the drawing of the chlorination furnace 1. In the lower right part of the drawing of the chlorination furnace 1, a chloride gas discharge port 4 for discharging the nickel chloride gas generated in the chlorination furnace 1 from the chlorination furnace is provided. Further, at the upper center of the drawing of the chlorination furnace 1, a metal raw material inlet 2 for supplying metal nickel particles into the chlorination furnace 1 is provided.

As shown in FIG. 1, the chlorination furnace 1 is a tubular body having a horizontally long cylindrical shape, and is installed horizontally. Since it is configured as a horizontally long cylindrical shape, when the raw material is supplied from the metal raw material charging port 2, the falling distance to the bottom of the chlorination furnace 1 is short, and the chlorination furnace 1 is hard to be damaged.

The inner wall of the chlorination furnace 1 is made of a material having heat resistance, such as glass lining, which is hardly corroded by chlorine. In addition, a material in which a phosphate compound film is grown on the inner wall in advance may be used. A curtain of an inert gas such as nitrogen gas may be formed on the inner wall. With this configuration, the apparatus can be protected from high temperature of 500 ° C. to 1000 ° C. in the chlorination step and corrosion by chlorine, and at the same time, contamination of the raw material during the chlorination reaction can be prevented.

Plate-like lids 8 are provided at both ends in the left-right direction of the chlorination furnace 1 in the drawing. A seal member is provided between the lid 8 and the cylindrical main body of the chlorination furnace 1. At the center of the two lids 8, 8, a partition plate rotating shaft 6 is provided through the lid 8 as shown in FIG.
The partition plate 5 is fixed. The partition plate rotation shaft 6 is provided to be rotatable from outside the chlorination furnace 1.

The partition plate 5 is formed of a disk-shaped body, and as shown in FIG. 2, a gas flow hole 9 is formed in about a half portion 5a as a specific region on the surface of the partition plate 5. This half portion 5a corresponds to the region 5a where the gas circulation holes are drilled, and the other portion 5b corresponds to the region 5b where the gas circulation holes are not drilled. The partition plate 5 is provided so as to be rotated by rotation of the partition plate rotation shaft 6, and the region 5 a in which the gas flow holes are formed is rotated. With this configuration, the contact efficiency of the chlorine gas with the metal nickel particles is increased, and the effect of the rotation of the partition plate, that is, the effect of securing the gas flow path, is exhibited.

That is, in the state shown in FIG. 1, the left partition plate 5L has a region 5a in which gas flow holes are drilled at the bottom of the drawing, and the right partition plate 5R has gas flow holes drilled. The region 5a is arranged so as to be at the top of the drawing. After that, depending on the closed state of the gas flow path, the left partition plate 5L is arranged in the upper part of the drawing at the region 5a where the gas flow holes are drilled, and the right partition plate 5R is drilled with the gas flow holes. The partition plate rotation shaft 6 can be rotated so that the divided area 5a is arranged at the bottom of the drawing.

In a portion sandwiched between the two partition plates 5L and 5R, a reaction portion 10 is formed as a metal raw material filling portion in which metal nickel and chlorine gas react to generate nickel chloride gas. The reaction section 10 is formed below the metal raw material inlet 2 as shown in FIG. Since the metal raw material inlet 2 is formed in the upper part of the reaction part 10, the metal raw material can be filled in the upper part of the chlorination furnace 1.

In the chlorination furnace 1, as shown in FIG. 1, a position on the left side of the partition plate 5L as a predetermined position, the partition plate 5L
The pressure gauge 11 as a differential pressure detecting device is installed at a position sandwiched by the partition plate 5R and a position on the right side of the partition plate 5R. These pressure gauges 11 are used to measure the degree of blockage of the gas flow path in the reaction section 10.

At the upper end of the metal raw material inlet 2, a cover 14 that covers the entire upper end of the metal raw material inlet 2 is provided. At the center of the lid 14, a rotating shaft 16 of the stirring device 7 having a stirring blade 15 fixed to the tip is fixed. The upper end of the rotating shaft 16 is connected to a rotation driving device (not shown).
Is rotationally driven by this rotational drive device. Further, the rotating shaft 16 is formed so as to be movable also in the vertical direction. With this configuration, when the rotating shaft 16 is fixed at the upper position shown in FIG. 3, the chlorine gas and the nickel chloride gas in the chlorination furnace 1 are prevented from flowing into the metal raw material inlet 2. be able to.

Next, the operation of the metal chloride apparatus according to this embodiment will be described. First, the heating device 17 is operated to set the temperature in the chlorination furnace 1 to 1000 ° C. The lid 14 of the metal raw material inlet 2 is opened, and nickel particles having a diameter of about 8 mm to 10 mm, which are raw materials, are charged, and the reaction part 10 surrounded by the set of partition plates 5L and 5R is filled with metal nickel. At this time, the falling nickel particles fall on the stirring blade 15 of the stirring device 7 and then fall into the reaction section 10. By arranging the stirring blade 15 at a position where the raw nickel particles fall, the impact when the raw nickel particles fall into the chlorination furnace 1 can be reduced.

Before starting the nickel chloride reaction, the left partition plate 5L is removed from the region 5a where the gas flow holes are formed.
The right partition plate 5R is arranged so that the region 5a where the gas flow holes are drilled is located at the bottom of the drawing such that is located at the top of the drawing. After filling an appropriate amount of nickel particles in the reaction section 10, a valve (not shown) connected to the chlorine gas inlet 3 is opened, and chlorine gas is supplied from the chlorine gas inlet 3 into the chlorination furnace 1. Here, as chlorine gas to be used,
Use dry chlorine gas through concentrated sulfuric acid. This is for removing moisture in the chlorine gas.

When chlorine gas is supplied, the left partition plate 5
The chlorine gas reaches the reaction section 10 through the gas flow hole 9 of L, and the chloride reaction of nickel starts. Nickel chloride gas is generated by the chloride reaction of nickel in the reaction section 10. The generated nickel chloride gas is supplied to the right partition plate 5R.
The gas is discharged from the chloride gas discharge port 4 to the outside of the chlorination furnace 1 through the gas flow holes 9. Thereafter, this nickel chloride gas is used for a reduction reaction of nickel chloride to produce nickel metal powder.

During the nickel salification reaction,
A pressure gauge 11 measures the pressure at three locations in the chlorination furnace 1. In the process of chlorination of nickel in the chlorination furnace 1, the nickel particles adhere to each other to form a bridge in the process of depletion of the raw metal nickel by the chlorine gas as the nickel metal is consumed, so that the nickel layer has a cavity and a gas passage. Is formed. By measuring the differential pressure of the pressure gauge 11, it is possible to know whether or not these cavities and blocked portions of the gas flow path have occurred.

At the stage where it was determined from the pressure difference of the pressure gauge 11 that the nickel layer had been hollowed out and the gas passage had been blocked, stirring, movement and rotation of the partition plate 5 in the horizontal direction of the drawing were performed.
Performed alone or in parallel to eliminate voids and closed portions of the nickel layer.

Here, the stirring is performed by driving the stirring device 7,
The horizontal movement of the partition plate 5 in FIG. 1 is performed alone or in parallel. That is, as the driving of the stirring device 7, the driving device of the stirring device 7 is operated, and the nickel particles filled in the reaction section 10 are stirred by the stirring blade 15. As for the movement of the partition plate 5 in the horizontal direction in FIG. 1, the partition plate rotating shaft 6 is reciprocated in the left-right direction of FIG. 1, and the partition plate 5 stirs the nickel particles filled in the reaction section 10.

The rotation of the partition plate 5 is performed as follows. That is, the left and right partition plate rotating shafts 6 and 6 are rotated, and the left and right partition plates 5L and 5R are rotated by 180 °. By this operation, the gas flow path which was the route indicated by the arrow in FIG. 1 at the start of the reaction is changed to the route shown in FIG. 4, and even if the gas flow path indicated by the arrow in FIG. Since the passage is secured, the reaction efficiency between chlorine gas and metallic nickel can be increased.

After that, the reaction between the chlorine gas and the metallic nickel is continued. If the nickel layer becomes hollow again and the gas flow path is closed again, the stirring, the partition plate 5
Is performed independently or in parallel to eliminate the voids and closed portions of the nickel layer. The stirring operation and the rotating operation of the partition plate 5 are repeatedly performed while continuously feeding the metal nickel particles and supplying the chlorine gas, thereby performing a continuous reaction between the chlorine gas and the metal nickel particles.

(Embodiment 2) Next, another embodiment of the present invention will be described with reference to the drawings. FIG. 5 is a diagram showing a metal chlorination apparatus according to this example. The metal chlorination apparatus of the present example has two metal material input ports 2A and 2B,
A, 7B, reaction parts 10A, 10B and two sets of partition plates 5
A, 5B. As described above, by providing two reaction units 10, unreacted leakage of chlorine gas can be more completely prevented.

Also, even if one of the reaction sections runs short of raw materials, the other reaction section can cover it and charge during that time. That is, if the left reaction part 10A breaks down, the amount of nickel particles will be insufficient with respect to the amount of chlorine gas. By reacting the nickel particles with the inside of the portion 10B, the chlorine gas can be completely converted to the nickel chloride gas.

The partition plates 5LA, 5RA, 5LB,
5RB is fixed to one partition plate rotating shaft 6 and rotates four partition plates 5 at the same time as rotating this partition plate rotating shaft 6.
LA, 5RA, 5LB, and 5RB are formed so as to rotate. Partition plate 5LA, 5RA, 5LB, 5RB of this example
Are fixed to the partition plate rotating shaft 6 so that the partition plates 5LA and 5RB have the same phase, and the partition plates 5RA and 5LB
Are fixed to the partition plate rotating shaft 6 so as to have the same phase. Partition plates 5LA and 5RB and partition plates 5RA and 5LB
Are fixed so as to have the opposite phase. Other configurations and operations of the present embodiment are the same as those described in the first embodiment.

(Specific Example 1) Hereinafter, a specific example of the present invention will be described with reference to the drawings. As the chlorination furnace 1 of the present embodiment, one having an inner wall coated with alumina is used. This is because high-purity alumina has a property that it is not corroded by chlorine gas even at a high temperature range of 1000 ° C.

The operating conditions of the metal chlorination apparatus of this example are as follows. a) Chlorine gas flow rate: 5 Nl / min b) Metal nickel shot particle size: 8 mm to 10 mm c) Metal nickel purity: 99.9% d) Operating time: 6 hr The partition plate 5 is rotated once every two hours. . Other configurations of the metal chlorination apparatus of this embodiment are the same as those of the first embodiment.

When the pressure difference in the chlorination furnace 1 was measured by the pressure gauge 11, it was found that clogging in the nickel particles was likely to occur at the time when 4 hours had passed from the start of the reaction. Therefore, the stirring device 7 was operated at the point of time when 4 hours had passed from the start of the reaction, and the stirring blade 15 stirred the nickel particles in the reaction sections 10A and 10B.

When the nickel chloride gas was generated under the above conditions using the metal chloride apparatus of this example, the chloride reaction could be carried out without blocking the nickel particles. Also,
Unreacted chlorine gas was not mixed in the exhaust gas from the chloride gas outlet 4. The contact efficiency between chlorine and nickel could be kept high by the metal chlorination apparatus of this example.

[0056]

As described above, according to the present invention, since the partition plates having the gas flow holes formed in one side are formed on both sides of the metal material filling portion in the chlorination furnace, the nickel chlorination reaction is prevented. As the process proceeds, even if nickel particles form a bridge and a cavity in the nickel layer, a closed portion of the gas flow path is formed, by rotating the partition plate, a new gas flow path is secured, Further, the chloride reaction of nickel can be continued.

Further, since the metal chlorination apparatus according to the present invention is provided with a plurality of metal raw material charging sections, even if one of the metal raw material charging sections becomes short of raw material, the other metal raw material charging section becomes insufficient. It can be covered by the filling section and charged during that time.
In other words, in the event that one of the metal raw material filling sections fails,
The amount of nickel particles becomes insufficient with respect to the amount of chlorine gas.However, by reacting the excess chlorine gas with the nickel particles in the other metal material filling section, the chlorine amount is increased. Complete consumption of gas can be achieved.

Further, the metal chlorination apparatus according to the present invention comprises:
Since the stirring device is provided so that at least one of the stirring blades is located in the metal material filling portion, even if the metal material in the metal material filling portion forms a bridge, or even if the gas flow path is closed. In addition, the metal raw material in the metal raw material filling section can be agitated, and the bridge can be broken to secure a gas flow path.

Since the metal chlorination apparatus according to the present invention has a simple structure, it can be easily manufactured using a material such as glass or ceramic. In addition, since the structure is simple, thermal deformation hardly occurs even in a salting step exposed to a high temperature of 500 ° C. to 1000 ° C., and it can be used for a long time. Furthermore, since the structure is simple, it can be easily disassembled and cleaned.

[Brief description of the drawings]

FIG. 1 is a schematic structural explanatory view showing a metal chlorination apparatus according to one embodiment of the present invention.

FIG. 2 is an explanatory plan view showing a partition plate of a metal chlorination apparatus according to one embodiment of the present invention.

FIG. 3 is a partial schematic configuration diagram when a stirring device of a metal chlorination device according to one embodiment of the present invention is at an upper position.

FIG. 4 is a schematic configuration diagram showing a metal chlorination apparatus according to one embodiment of the present invention, showing a state in which a partition plate is rotated by 180 ° from the state of FIG. 1;

FIG. 5 is an explanatory cross-sectional view showing a metal chlorination apparatus according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chlorination furnace 2 Metal raw material input port 3 Chlorine gas inlet 4 Chloride gas discharge port 5 Partition plate 5a Region where gas flow holes are drilled 5b Region where gas flow holes are not drilled 5L Left partition plate 5R Right side Partition plate 6 Partition plate rotating shaft 7 Stirrer 8 Lid 9 Gas flow hole 10 Reaction unit 11 Pressure gauge 14 Lid 15 Stirrer blade 16 Rotating shaft 17 Heating device

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4G048 AA06 AB01 AC04 AD03 AE06 4K017 AA03 BA02 BA03 BA05 CA01 CA08 EK03 5E001 AB03 AC09 AJ01 AZ00

Claims (15)

[Claims] 1. A metal chlorination apparatus for chlorinating a metal, wherein the metal chlorination apparatus includes a chlorination furnace for chlorinating a metal supplied therein, wherein the chlorination furnace includes metal in the chlorination furnace. A chlorine gas inlet for supplying chlorine gas into the chlorination furnace, and a chloride gas discharge port for discharging metal chloride gas out of the chlorination furnace. A metal raw material charging section to which a metal raw material is supplied from the metal raw material inlet is formed in the chlorination furnace, and the inside of the chlorination furnace is divided into a position adjacent to the metal raw material charging section. A metal chlorination device, characterized in that a partition plate is provided on the device. 2. The metal plate according to claim 1, wherein the partition plate has a surface provided with a region in which gas flow holes are formed and a region in which gas flow holes are not formed. Chlorination equipment. 3. The partition plate is provided on both sides of the metal raw material filling section, and the partition plates provided on both sides are connected by a rotating shaft. Metal chloride equipment. 4. The partition plate provided on both sides is fixed to the rotating shaft so that the phases of the regions where the gas flow holes are drilled are different from each other. Metal chloride equipment. 5. The metal chlorination apparatus according to claim 1, wherein the partition plate is provided so as to be movable in a length direction of the rotation shaft. 6. A region of the partition plate where the gas flow holes are formed occupies a specific region of the partition plate and occupies 1/3 to 2/3 of a plane of the partition plate. An apparatus for chlorinating a metal according to claim 1. 7. The metal chlorination apparatus according to claim 1, wherein a differential pressure detecting device is provided at a predetermined position in the chlorination furnace. 8. A plurality of metal raw material charging ports and a plurality of metal raw material filling portions are provided, and the partition plates are provided on both sides of each of the plurality of metal raw material filling portions. 8. A metal chloride apparatus according to any one of 1 to 7. 9. A stirrer provided with a rotating shaft driven to rotate by a driving device and at least one stirring blade fixed near a tip of the rotating shaft, wherein the stirring device is provided with a stirring device. 9. The metal chlorination apparatus according to claim 1, wherein the rotating shaft is disposed at the metal material input port such that at least one of the blades is located at the metal material charging portion. 10. The metal material charging port is provided at an upper part of the metal material filling section, the rotating shaft of the stirring device is formed so as to be movable in a vertical direction, and the stirring blade is disposed at an upper position. The metal chlorination apparatus according to claim 1, wherein the metal chlorination apparatus is formed so as to cover most of an opening of the metal material input port when the metal material is charged. 11. A metal chloride producing method for producing a metal chloride gas by salinating a metal, wherein the chlorine gas is brought into contact with the metal in a chloride furnace to continuously generate the metal chloride gas. And a gas flow path changing step of changing a gas flow path by a gas flow path adjusting member provided in the chlorination furnace, wherein the gas flow path changing step is performed simultaneously with the chlorination step. Metal chloride production method. 12. The gas flow path is changed by rotating a partition plate having a surface provided with a region in which gas flow holes are formed and a region in which gas flow holes are not formed. The method for producing a metal chloride according to claim 11, wherein: 13. The method for producing a metal chloride according to claim 11, wherein the gas flow path changing step is performed when the measured value of the differential pressure in the chlorination furnace is a predetermined value. 14. The method for producing a metal chloride according to claim 11, further comprising a stirring step of stirring the metal charged in the chlorination furnace. 15. Agitating by moving the partition plate in a direction perpendicular to the surface or by a stirrer, or by moving the partition plate in a direction perpendicular to the surface and a stirrer. Claim 14
The method for producing metal chloride according to the above.