JP2001073044A - Method for recovering metal magnesium - Google Patents
Method for recovering metal magnesiumInfo
- Publication number
- JP2001073044A JP2001073044A JP24663299A JP24663299A JP2001073044A JP 2001073044 A JP2001073044 A JP 2001073044A JP 24663299 A JP24663299 A JP 24663299A JP 24663299 A JP24663299 A JP 24663299A JP 2001073044 A JP2001073044 A JP 2001073044A
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- Japan
- Prior art keywords
- vessel
- reaction vessel
- container
- magnesium
- reaction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
【０００１】[0001]
【発明が属する技術分野】本発明は金属マグネシウムの
回収方法に係り、特にスポンジチタン製造用金属マグネ
シウム運搬容器等を含む容器に残存した金属マグネシウ
ムを回収する方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for recovering metallic magnesium, and more particularly to a method for recovering metallic magnesium remaining in a container including a metallic magnesium transporting container for producing titanium sponge.
【０００２】[0002]
【従来の技術】スポンジチタンは、例えば、四塩化チタ
ンを溶融マグネシウムで還元することにより製造され
る。そして、溶融マグネシウムは、四塩化チタンの還元
を行わせる反応容器に、溶融マグネシウムを収容した金
属マグネシウム運搬容器から注入するようにしている。2. Description of the Related Art Titanium sponge is produced, for example, by reducing titanium tetrachloride with molten magnesium. Then, the molten magnesium is injected into the reaction vessel for reducing titanium tetrachloride from the metal magnesium transporting vessel containing the molten magnesium.
【０００３】[0003]
【発明が解決しようとする課題】前記した金属マグネシ
ウム運搬容器の底部には、使用回数の増加に伴い、窒化
マグネシウムや酸化マグネシウムを含んだ金属マグネシ
ウムが沈積する。そして、このような金属マグネシウム
運搬容器の底部に沈積した窒化マグネシウムや酸化マグ
ネシウムは、金属マグネシウムの受け入れまたは排出時
に、溶融マグネシウム中を浮遊し、スポンジチタンの品
質低下をもたらす原因ともなっていた。As the number of uses increases, metallic magnesium containing magnesium nitride and magnesium oxide deposits on the bottom of the metallic magnesium transport container. Then, the magnesium nitride or magnesium oxide deposited on the bottom of such a metal magnesium transport container floats in the molten magnesium when receiving or discharging the magnesium metal, which is a cause of lowering the quality of titanium sponge.
【０００４】このため、前記金属マグネシウム運搬容器
の底部に沈積した窒化マグネシウムや酸化マグネシウム
を含む金属マグネシウムは、水洗処理することにより廃
棄していた。このような金属マグネシウム運搬容器の水
洗処理時には、多量の水素ガスやアンモニアガスが発生
するため、かなりの処理時間が必要であった。さらに
は、金属マグネシウム運搬容器の水洗処理作業は熟練を
要するため、水洗処理作業者は、専任の作業員によって
行っていた。[0004] For this reason, the metal magnesium containing magnesium nitride and magnesium oxide deposited on the bottom of the metal magnesium transport container has been disposed of by washing with water. At the time of the water washing treatment of such a metal magnesium transport container, a large amount of hydrogen gas and ammonia gas are generated, so that a considerable treatment time is required. Furthermore, since the water-washing operation of the metal magnesium transport container requires skill, the water-washing operator is performed by a dedicated worker.
【０００５】本発明の目的は、不純物を含んだ金属マグ
ネシウム運搬容器から金属マグネシウムを効果的に回収
する方法を提供することにある。本発明の他の目的は、
不純物を効率的に金属マグネシウム運搬容器から除去す
る方法を提供することにある。さらに他の目的は、不純
物を含んだ金属マグネシウム運搬容器を安全に処理する
方法を提供することにある。An object of the present invention is to provide a method for effectively recovering metallic magnesium from a metallic magnesium transporting vessel containing impurities. Another object of the present invention is to
An object of the present invention is to provide a method for efficiently removing impurities from a metal magnesium transport container. Still another object is to provide a method for safely treating a metal magnesium transport container containing impurities.
【０００６】[0006]
【課題を解釈するための手段】前記課題は、本発明によ
れば、金属マグネシウム運搬容器を含む容器内に堆積し
た窒化マグネシウムを含有する金属マグネシウムから下
記の工程を行うことにより金属マグネシウムを分離除去
することを特徴とする金属マグネシウムの回収方法。 前記運搬容器を反応容器に収納する工程。 前記反応容器と凝縮容器を連結する工程。 前記反応容器と凝縮容器内を減圧する工程。 前記反応容器を７５０−１０００℃の範囲で加熱する
工程。 によって、解決される。According to the present invention, the object of the present invention is to separate and remove metallic magnesium from a metallic magnesium containing magnesium nitride deposited in a container including a metallic magnesium carrying container by performing the following steps. A method for recovering metallic magnesium. Storing the transport container in a reaction container. Connecting the reaction vessel and the condensation vessel. A step of reducing the pressure inside the reaction vessel and the condensation vessel. Heating the reaction vessel in the range of 750-1000 ° C. Is solved by
【０００７】なお、金属マグネシウム運搬容器は、スポ
ンジチタン製造用金属マグネシウム運搬容器であり、反
応容器はスポンジチタン製造反応容器とすると、好適で
ある。[0007] It is preferable that the metallic magnesium transport container is a metallic magnesium transport container for producing titanium sponge, and the reaction container is a titanium sponge producing reaction container.
【０００８】以上のように、金属マグネシウム運搬容器
を反応容器内に収納してから、反応容器と凝縮容器とを
連結し、反応容器を加熱後、凝縮容器と反応容器を減圧
し、金属マグネシウム運搬容器内の残留物である金属マ
グネシウムを蒸発させる。金属マグネシウム運搬容器か
ら蒸発した金属マグネシウムは、反応容器外の凝縮容器
によって冷却して回収される。このように、金属マグネ
シウム運搬容器内に沈積した金属マグネシウムをリサイ
クル資源として回収することが可能となると共に、回収
装置としては、従来からあるチタンの製造設備を、その
まま利用することでが可能となるので、実用上非常に経
済的である。[0008] As described above, after the metal magnesium transport container is housed in the reaction container, the reaction container and the condensing container are connected, and after heating the reaction container, the condensing container and the reaction container are depressurized to transport the metal magnesium. The residual magnesium metal in the container is evaporated. The metallic magnesium evaporated from the metallic magnesium transport container is cooled and collected by a condensing container outside the reaction container. As described above, it becomes possible to recover the metal magnesium deposited in the metal magnesium transport container as a recyclable resource, and as a recovery apparatus, it is possible to use a conventional titanium manufacturing facility as it is. It is very economical in practice.
【０００９】[0009]
【発明の実施の形態】以下、本発明の一実施の形態を図
面に基づいて説明する。なお、以下に説明する部材，配
置等は本発明を限定するものでなく、本発明の趣旨の範
囲内で種々改変することができるものである。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.
【００１０】図１及び図２は、本発明方法に用いられる
回収装置を示すもので、図１は概略構成図、図２は反応
容器内に金属マグネシウム運搬容器を収容した状態を示
す概略構成図であり、図３は本発明方法の工程を示すブ
ロック図である。FIGS. 1 and 2 show a recovery apparatus used in the method of the present invention. FIG. 1 is a schematic configuration diagram, and FIG. 2 is a schematic configuration diagram showing a state in which a metal magnesium transport container is accommodated in a reaction container. FIG. 3 is a block diagram showing the steps of the method of the present invention.
【００１１】図１及び図２で示すように、本発明に用い
られる金属マグネシウム回収装置Ｓは、反応容器１０
と、凝縮容器２０と、反応容器１０と凝縮容器２０との
接続管３０と、反応容器１０内に配置される支持部材４
０と、金属マグネシウム運搬容器５０と、から構成され
ている。As shown in FIG. 1 and FIG. 2, a metal magnesium recovery apparatus S used in the present invention comprises a reaction vessel 10
, A condensing container 20, a connecting pipe 30 between the reaction container 10 and the condensing container 20, and a support member 4 disposed in the reaction container 10.
0 and a metal magnesium transport container 50.
【００１２】本例では、反応容器１０として、スポンジ
チタン製造用分離設備を流用している。即ち、図１で示
すように、反応容器１０は、中空円筒状をしており、材
質としてはＳＵＳ３１６を用いている。反応容器１０の
上面は大きな開口部となっており、この開口部に開閉可
能な蓋体１２が設けられている。この反応容器１０の蓋
体１２に、接続管３０との接続部１４が形成されていい
る。In this embodiment, a separation facility for producing titanium sponge is used as the reaction vessel 10. That is, as shown in FIG. 1, the reaction vessel 10 has a hollow cylindrical shape, and SUS316 is used as a material. The upper surface of the reaction vessel 10 has a large opening, and a lid 12 that can be opened and closed is provided in this opening. A connection portion 14 with a connection pipe 30 is formed on the lid 12 of the reaction vessel 10.
【００１３】この反応容器１０には、加熱炉（図示せ
ず）が設けられており、本例の加熱炉は、抵抗加熱によ
る方式を採用している。本例の加熱炉は、チタン製造に
おける公知・周知の技術を用いている。また、反応容器
１０は上記蓋体１２により閉塞可能になっており、減圧
を可能とする密閉構造としている。The reaction vessel 10 is provided with a heating furnace (not shown), and the heating furnace of this embodiment employs a resistance heating method. The heating furnace of this example uses a well-known technique in titanium production. Further, the reaction vessel 10 can be closed by the lid 12, and has a hermetically sealed structure capable of reducing pressure.
【００１４】また、凝縮容器２０については、円筒状を
しており、材質はＳＵＳ３１６から構成されている。こ
の凝縮容器２０についてもスポンジチタン製造用凝縮設
備を流用することができる。凝縮容器２０は上記反応容
器１０と接続管３０により連結される。また、凝縮容器
２０には冷却装置（図示せず）が設けられている。本例
の冷却装置は、水冷であり、凝縮容器２０上部を冷却可
能に構成している。本例の冷却装置は、チタン製造にお
ける公知・周知の技術を用いている。また凝縮容器２０
の所定位置には真空装置（図示せず）と連結された吸引
管２２が接続されている。この吸引管２２から凝縮容器
２０と反応容器１０が減圧されるように構成されてい
る。The condensing container 20 has a cylindrical shape and is made of SUS316. The condensing equipment for producing sponge titanium can also be used for the condensing container 20. The condensation vessel 20 is connected to the reaction vessel 10 by a connection pipe 30. The condenser 20 is provided with a cooling device (not shown). The cooling device of this example is water-cooled, and is configured to be able to cool the upper part of the condensation container 20. The cooling device of this example uses a well-known technology in titanium production. In addition, the condensation vessel 20
Is connected to a vacuum tube (not shown) at a predetermined position. The condensing container 20 and the reaction container 10 are configured to be depressurized from the suction pipe 22.
【００１５】そして、上記反応容器１０内には支持部材
４０が配設される。本例の支持部材４０は、図２で示す
ように、基部４１と、受け部４２と、連結部４３と、か
ら構成されている。基部４１は反応容器１０の底部に配
置し、支持部材４０を反応容器１０内に安定して配設す
るものであり、本例では図１で示すように、円盤状に形
成されている。A support member 40 is provided in the reaction vessel 10. As shown in FIG. 2, the support member 40 of the present embodiment includes a base 41, a receiving part 42, and a connecting part 43. The base 41 is disposed at the bottom of the reaction vessel 10 and the support member 40 is stably disposed in the reaction vessel 10. In this example, as shown in FIG. 1, the support 41 is formed in a disk shape.
【００１６】この基部４１には連結部４３が配設される
ものであり、本例の連結部４３は基部４１上に配置され
る連結基部４３ａと、連結基部４３ａと反対側に形成さ
れる受け支持部４３ｂとを連結するものである。そし
て、受け支持部４３ｂには金属マグネシウム運搬容器５
０を支持する受け部４２が配置される。本例の受け部４
２は皿状に形成されており、金属マグネシウム運搬容器
５０の底部の外形形状に合った形状としている。なお、
受け部４２と連結部４３とを一体に構成することもでき
る。また、上記基部４１と、受け部４２と、連結部４３
とを一体に連結するように構成してもよい。The connecting portion 43 is provided on the base portion 41. The connecting portion 43 of this embodiment has a connecting base portion 43a disposed on the base portion 41 and a receiving portion formed on the opposite side to the connecting base portion 43a. This is for connecting the support portion 43b. Then, the metallic magnesium transport container 5 is provided on the receiving support 43b.
0 is provided. Receiving part 4 of this example
Numeral 2 is formed in a dish shape and has a shape conforming to the outer shape of the bottom of the metal magnesium transport container 50. In addition,
The receiving portion 42 and the connecting portion 43 may be integrally formed. Also, the base 41, the receiving part 42, and the connecting part 43
And may be configured to be integrally connected.
【００１７】本例の金属マグネシウム運搬容器５０は、
図２で示すように、たる類似の円筒状をしており、底面
は湾曲した膨出部５２として構成され、上部には、連結
部５４が形成されている。この連結部５４は、本例では
開放した状態としている。なお、金属マグネシウム運搬
容器５０は上記形状等に限定されないことは言うまでも
ない。The metal magnesium transporting container 50 of this embodiment is
As shown in FIG. 2, it has a cylindrical shape similar to a barrel, and the bottom surface is configured as a curved bulging portion 52, and a connecting portion 54 is formed at an upper portion. The connecting portion 54 is open in this example. It is needless to say that the metal magnesium transport container 50 is not limited to the above-described shape and the like.
【００１８】次に、金属マグネシウム運搬容器５０に沈
積した金属マグネシウムの分離方法について、図３のブ
ロック図を参照して説明する。まず、工程１００で、反
応容器１０の蓋体１２を開放し、支持部材４０を反応容
器１０内に配置する。このとき、本例の支持部材４０の
基部が反応容器１０の底部に、ガタ付かないように配置
される。次に連結部の連結基部を基部上に配置する。そ
して連結部の上部に受け部を配置する。本例では、支持
部材４０を個別に形成した例をしめしているが、支持部
材４０の基部と、受け部と、連結部を一体に形成してい
る場合には、一緒に配置することが可能である。Next, a method of separating metallic magnesium deposited in the metallic magnesium transporting container 50 will be described with reference to the block diagram of FIG. First, in step 100, the lid 12 of the reaction container 10 is opened, and the support member 40 is disposed in the reaction container 10. At this time, the base of the support member 40 of the present example is arranged on the bottom of the reaction vessel 10 so as not to rattle. Next, the connecting base of the connecting part is arranged on the base. And a receiving part is arrange | positioned at the upper part of a connection part. In this example, an example in which the support members 40 are individually formed is shown. However, when the base portion, the receiving portion, and the connection portion of the support members 40 are integrally formed, they can be arranged together. It is.
【００１９】次に、工程１１０で、金属マグネシウム運
搬容器５０を反応容器１０内に装着する。金属マグネシ
ウム運搬容器５０の装着は、連結部を開放した状態で、
前記した受け部上に配置する。Next, in step 110, the metallic magnesium transporting container 50 is mounted in the reaction container 10. Mounting of the metal magnesium transport container 50 is performed with the connecting portion opened.
It is arranged on the receiving part described above.
【００２０】次に、工程１２０で、反応容器１０と凝縮
容器２０を連結する。これは、反応容器１０の蓋体１２
を閉じて、接続管３０との接続部に連結管によって反応
容器１０と凝縮容器２０とを連結する。Next, in step 120, the reaction vessel 10 and the condensation vessel 20 are connected. This corresponds to the lid 12 of the reaction vessel 10.
Is closed, and the reaction vessel 10 and the condensation vessel 20 are connected to the connection portion with the connection pipe 30 by a connection pipe.
【００２１】そして、工程１３０で、反応容器１０を加
熱する。加熱は加熱炉によって行う。次に、工程１４０
で、加熱と同時に凝縮容器２０の冷却を行う。つまり、
反応容器１０と凝縮容器２０とを連結した後で、反応容
器１０の加熱および凝縮容器２０の冷却（水冷）を開始
する。Then, in step 130, the reaction vessel 10 is heated. Heating is performed by a heating furnace. Next, step 140
Then, the condensing container 20 is cooled simultaneously with the heating. That is,
After connecting the reaction vessel 10 and the condensation vessel 20, heating of the reaction vessel 10 and cooling (water cooling) of the condensation vessel 20 are started.
【００２２】上記反応容器１０の加熱は、７５０℃〜１
０００℃程度まで加熱する。このように７５０℃〜１０
００℃程度まで加熱することにより、金属マグネシウム
分のみを蒸発させ凝縮容器内への捕集を行う。７５０℃
より低い温度では、分離速度が遅く、生産性が悪い。逆
に、１０００℃より高い温度では、金属マグネシウムの
みならず窒化マグネシウムの蒸発も活発となり好ましく
ない。また、設備寿命の低下をもたらすためである。こ
のため実用として好ましい範囲は、８５０℃〜９５０℃
である。The heating of the reaction vessel 10 is performed at 750 ° C. to 1
Heat to about 000 ° C. Thus, 750 ° C.-10
By heating to about 00 ° C., only the metallic magnesium is evaporated and collected in the condensation vessel. 750 ° C
At lower temperatures, the separation speed is slow and productivity is poor. Conversely, if the temperature is higher than 1000 ° C., evaporation of not only metallic magnesium but also magnesium nitride is activated, which is not preferable. Also, this is to bring about a reduction in equipment life. Therefore, a practically preferable range is 850 ° C. to 950 ° C.
It is.
【００２３】次に、工程１５０で、反応容器１０および
凝縮容器２０内の減圧を開始する。この減圧は、凝縮容
器２０の吸引管から真空装置によって行われる。到達真
空度としては、０．０５−０．１ Ｔｏｒｒである。Next, in step 150, the pressure in the reaction vessel 10 and the condensation vessel 20 is started. This decompression is performed by a vacuum device from the suction pipe of the condensation container 20. The ultimate vacuum is 0.05-0.1 Torr.
【００２４】次に、工程１６０で、各容器内の真空度が
所定の減圧度（例えば０．００５Ｔｏｒｒ）まで低下し
たところで加熱を停止する。Next, in step 160, the heating is stopped when the degree of vacuum in each container is reduced to a predetermined degree of reduced pressure (for example, 0.005 Torr).
【００２５】そして、工程１７０で反応容器１０と凝縮
容器とを切り離す。次いで工程１８０で、反応容器１０
の冷却を開始する。室温近傍まで冷却後、凝縮容器内の
金属マグネシウムを回収し、また、反応容器内の運搬容
器５０を取だし、運搬容器内に固化した残留物を排出す
る。Then, in step 170, the reaction vessel 10 and the condensation vessel are separated. Next, in step 180, the reaction vessel 10
Start cooling. After cooling to around room temperature, the metallic magnesium in the condensing container is recovered, the transport container 50 in the reaction container is removed, and the solidified residue is discharged into the transport container.
【００２６】（具体的実施例）前記した回収装置Ｓによ
って、上記した回収方法を実施した。反応容器１０の条
件としては、４７０ｋｇの堆積物を含んだ運搬容器を温
度が９００℃となるまで加熱し、１１時間かけて分離作
業を行った。その結果、分離Ｍｇ重量は、２００Ｋｇで
あり、残留Ｍｇ重量（窒化マグネシウムと考えられる）
は２７０Ｋｇであった。これにより、従来、水洗により
廃棄していた約５０％の金属マグネシウムを回収するこ
とができた。また、容器底部に残った窒化マグネシウム
は、紛砕して容易に除去できた。(Specific embodiment) The above-mentioned collecting method was carried out by the collecting device S described above. As a condition of the reaction vessel 10, a transport vessel containing 470 kg of sediment was heated until the temperature reached 900 ° C., and the separation operation was performed for 11 hours. As a result, the separated Mg weight was 200 kg, and the residual Mg weight (considered as magnesium nitride)
Was 270 kg. As a result, about 50% of metallic magnesium conventionally discarded by washing could be recovered. The magnesium nitride remaining on the bottom of the container was crushed and easily removed.
【００２７】[0027]
【発明の効果】本発明によれば、金属マグネシウム運搬
容器の底部に残留した窒化マグネシウムや酸化マグネシ
ウムを含む金属マグネシウムから金属マグネシウムを分
離回収できる。また、処理作業について、多量の水素ガ
スやアンモニアガスの発生を伴うことなく、金属マグネ
シウム運搬容器内の金属マグネシウムを分離回収作業を
進めることができる。さらに、従来、廃棄していたマグ
ネシウム運搬容器底部に蓄積していた金属マグネシウム
を廃棄することなく回収し、資源を有効活用することが
可能となる。According to the present invention, metallic magnesium can be separated and recovered from metallic magnesium containing magnesium nitride and magnesium oxide remaining at the bottom of the metallic magnesium transporting container. Further, in the processing operation, the separation and recovery operation of the metallic magnesium in the metallic magnesium transport container can be performed without generating a large amount of hydrogen gas or ammonia gas. Furthermore, it is possible to recover the metal magnesium accumulated in the bottom of the magnesium transport container, which has been conventionally discarded, without discarding the metal magnesium, and to effectively use resources.
【図１】本発明に用いられる回収装置を示す概略構成図
である。FIG. 1 is a schematic configuration diagram showing a recovery device used in the present invention.
【図２】反応容器内に金属マグネシウム運搬容器を収容
した状態を示す概略構成図である。FIG. 2 is a schematic configuration diagram showing a state in which a metal magnesium transport container is accommodated in a reaction container.
【図３】本発明方法の工程を示すブロック図である。FIG. 3 is a block diagram showing the steps of the method of the present invention.
１０ 反応容器 １２ 蓋体 １４ 接続部 ２０ 凝縮容器 ２２ 吸引管 ３０ 接続管 ４０ 支持部材 ４１ 基部 ４２ 受け部 ４３ 連結部 ４３ａ 連結基部 ４３ｂ 受け支持部 ５０ 金属マグネシウム運搬容器 ５２ 膨出部 ５４ 連結部 Ｓ 回収装置 DESCRIPTION OF SYMBOLS 10 Reaction container 12 Lid 14 Connecting part 20 Condensing container 22 Suction pipe 30 Connecting pipe 40 Supporting member 41 Base 42 Receiving part 43 Connecting part 43a Connecting base 43b Receiving supporting part 50 Metal magnesium transport container 52 Swelling part 54 Connecting part S Collection apparatus
Claims (2)
に堆積した窒化マグネシウムを含有する金属マグネシウ
ムから下記の工程を行うことにより金属マグネシウムを
分離除去することを特徴とする金属マグネシウムの回収
方法。 前記運搬容器を反応容器に収納する工程。 前記反応容器と凝縮容器を連結する工程。 前記反応容器と凝縮容器内を減圧する工程。 前記反応容器を７５０−１０００℃の範囲で加熱する
工程。1. A method for recovering metallic magnesium, comprising separating and removing metallic magnesium from metallic magnesium containing magnesium nitride deposited in a container including a metallic magnesium transport container by performing the following steps. Storing the transport container in a reaction container. Connecting the reaction vessel and the condensation vessel. A step of reducing the pressure inside the reaction vessel and the condensation vessel. Heating the reaction vessel in the range of 750-1000 ° C.
チタン製造用金属マグネシウム運搬容器であり、反応容
器はスポンジチタン製造反応容器であることを特徴とす
る請求項１記載の金属マグネシウムの回収方法。2. The method for recovering metallic magnesium according to claim 1, wherein the metallic magnesium transport container is a metallic magnesium transport container for producing titanium sponge, and the reaction container is a sponge titanium producing reaction container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24663299A JP3774339B2 (en) | 1999-08-31 | 1999-08-31 | Method for recovering metallic magnesium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24663299A JP3774339B2 (en) | 1999-08-31 | 1999-08-31 | Method for recovering metallic magnesium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001073044A true JP2001073044A (en) | 2001-03-21 |
| JP3774339B2 JP3774339B2 (en) | 2006-05-10 |
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ID=17151299
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24663299A Expired - Lifetime JP3774339B2 (en) | 1999-08-31 | 1999-08-31 | Method for recovering metallic magnesium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI402215B (en) * | 2007-01-29 | 2013-07-21 | Jnc Corp | Molten evaporation device of metals |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607446A (en) * | 2019-09-24 | 2019-12-24 | 新疆湘晟新材料科技有限公司 | Reduction distillation reactor barrel for producing high-efficiency titanium sponge |
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- 1999-08-31 JP JP24663299A patent/JP3774339B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI402215B (en) * | 2007-01-29 | 2013-07-21 | Jnc Corp | Molten evaporation device of metals |
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| Publication number | Publication date |
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| JP3774339B2 (en) | 2006-05-10 |
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