JPH08188418A - Wet-type recovery of iron chloride powder - Google Patents
Wet-type recovery of iron chloride powderInfo
- Publication number
- JPH08188418A JPH08188418A JP33838294A JP33838294A JPH08188418A JP H08188418 A JPH08188418 A JP H08188418A JP 33838294 A JP33838294 A JP 33838294A JP 33838294 A JP33838294 A JP 33838294A JP H08188418 A JPH08188418 A JP H08188418A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- fecl
- iron chloride
- liquid
- tank
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、浸珪処理により高珪素
鋼帯を製造する際等に生成される塩化鉄の粉体の湿式回
収方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wet recovery method of iron chloride powder produced when producing a high silicon steel strip by a siliconizing treatment.
【０００２】[0002]
【従来の技術】ＳｉＣｌ4を原料ガスとして鋼帯を浸珪
処理することにより高珪素鋼帯を製造する方法が知られ
ている。この浸珪処理では、ＳｉＣｌ4と鋼帯との下記
式の浸珪反応により副生成物としてＦｅＣｌ2が生成さ
れ、 ＳｉＣｌ4＋５Ｆｅ→Ｆｅ3Ｓｉ＋２ＦｅＣｌ2 このＦｅＣｌ2は排ガスの一部として排出された後、排
ガスを冷却することによりＦｅＣｌ2粉として回収され
る。このＦｅＣｌ2粉は最終的に溶解槽に送られて湿式
回収される。2. Description of the Related Art There is known a method for producing a high-silicon steel strip by subjecting a steel strip to a siliconizing treatment using SiCl 4 as a raw material gas. In this silicidation treatment, FeCl 2 was produced as a by-product by the silicidation reaction of SiCl 4 and the steel strip according to the following formula, and SiCl 4 + 5Fe → Fe 3 Si + 2FeCl 2 This FeCl 2 was discharged as a part of the exhaust gas. Then, the exhaust gas is cooled to be recovered as FeCl 2 powder. The FeCl 2 powder is finally sent to the melting tank and wet-collected.
【０００３】[0003]
【発明が解決しようとする課題】この湿式回収では、Ｆ
ｅＣｌ2粉をエアによる気送若しくはベルトコンベア等
により溶解槽まで搬送して溶解槽内の液体中に溶解させ
るが、この際溶解槽中でＦｅＯ（ＯＨ）が生成して、溶
解槽に沈殿するという問題がある。この沈殿物は、水溶
することなく蓄積されるため、定期的な溶解槽清掃を実
施する必要がある。また、ＦｅＣｌ2粉を気送により溶
解槽に供給した場合、ＦｅＣｌ2粉の一部が液体に溶解
せず、溶解槽の圧力抜き口等から外気に飛散することが
あり、このように飛散したＦｅＣｌ2粉は周囲の設備や
機器類を腐蝕させる。In this wet recovery, F
The eCl 2 powder is fed by air or conveyed to a dissolution tank by a belt conveyor or the like and dissolved in the liquid in the dissolution tank. At this time, FeO (OH) is generated in the dissolution tank and precipitates in the dissolution tank. There is a problem. Since this precipitate does not dissolve in water but accumulates, it is necessary to perform regular dissolution tank cleaning. Further, when the FeCl 2 powder is supplied to the melting tank by pneumatic feeding, a part of the FeCl 2 powder may not be dissolved in the liquid, and may be scattered to the outside air from the pressure release port of the melting tank. FeCl 2 powder corrodes surrounding equipment and devices.
【０００４】したがって本発明の目的は、ＦｅＣｌ2粉
等の塩化鉄粉の湿式回収において、溶解槽内での沈殿物
の生成を効果的に防止し、また、塩化鉄粉が溶解槽の外
部に飛散することを適切に防止することができる湿式回
収法を提供することにある。Therefore, an object of the present invention is to effectively prevent the formation of precipitates in the dissolution tank in the wet recovery of iron chloride powder such as FeCl 2 powder, and to allow the iron chloride powder to come out of the dissolution tank. An object of the present invention is to provide a wet recovery method that can appropriately prevent scattering.
【０００５】[0005]
【課題を解決するための手段】このような課題を達成す
るための本発明の構成は以下の通りである。 (1) 塩化鉄粉を非酸化性ガスにより溶解槽に気送して、
溶解槽内で非酸化性ガスをバブリングさせ、塩化鉄粉を
液中に溶解させることを特徴とする塩化鉄粉の湿式回収
方法。 (2) 上記(1)の方法において、非酸化性ガスを微細な気
泡状態となるよう溶解槽内でバブリングさせることを特
徴とする塩化鉄粉の湿式回収方法。[Means for Solving the Problems] The structure of the present invention for achieving the above object is as follows. (1) Pour iron chloride powder into the dissolution tank with a non-oxidizing gas,
A wet recovery method for iron chloride powder, which comprises bubbling a non-oxidizing gas in a dissolution tank to dissolve the iron chloride powder in the liquid. (2) The method for wet-collecting iron chloride powder according to the above-mentioned method (1), wherein the non-oxidizing gas is bubbled in a melting tank so as to form fine bubbles.
【０００６】[0006]
【作用】本発明者らは、ＦｅＣｌ2粉（以下、塩化鉄粉
としてＦｅＣｌ2粉を例に説明する）の湿式回収におい
て、溶解槽内でＦｅＯ（ＯＨ）の沈殿が生じる原因及び
気送されたＦｅＣｌ2粉が溶解槽から槽外に飛散する原
因について検討を行い、これらの原因について以下のよ
うな知見を得た。In the wet recovery of FeCl 2 powder (hereinafter, FeCl 2 powder will be described as an example of iron chloride powder), the inventors of the present invention cause the precipitation of FeO (OH) in the dissolution tank and send it by air. The causes of the FeCl 2 powder scattered from the melting tank to the outside of the tank were examined, and the following findings were obtained.
【０００７】まず、溶解槽内でのＦｅＯ（ＯＨ）の沈殿
については、溶解槽への気送中にＦｅＣｌ2粉が酸素及
び水分と反応してＦｅＣｌ2の水和物（ＦｅＣｌ2・ｎＨ
2Ｏ）が生成され、このＦｅＣｌ2の水和物が酸素（水中
溶存酸素）存在下で水に溶解することにより、ＦｅＯ
（ＯＨ）が生成されていることが判った。したがって、
溶解槽内におけるＦｅＯ（ＯＨ）の生成・沈殿を抑制す
るためには、移送中におけるＦｅＣｌ2粉の水和化を極
力抑制するとともに、溶解槽の液中の酸素量（溶存酸素
量）も極力低減することが必要であることが判った。[0007] First, the precipitation of FeO in the melting bath (OH), reacting with the FeCl 2 dihydrate and FeCl 2 powder oxygen and moisture in the air transfer into the dissolving tank (FeCl 2 · nH
2 O) is produced, and the hydrate of FeCl 2 is dissolved in water in the presence of oxygen (dissolved oxygen in water) to produce FeO.
It was found that (OH) was produced. Therefore,
In order to suppress the generation and precipitation of FeO (OH) in the dissolution tank, the hydration of FeCl 2 powder during transfer is suppressed as much as possible, and the oxygen amount in the solution in the dissolution tank (dissolved oxygen amount) is also suppressed as much as possible. It has been found necessary to reduce.
【０００８】また、溶解槽からＦｅＣｌ2粉が槽外に飛
散する問題については、以下のことが明らかとなった。
すなわち、ＦｅＣｌ2粉を溶解槽に気送する場合、気送
配管が閉塞しないようにするため高流速での気送が行わ
れるが、このような高流速の気体が溶解槽内で吹き込ま
れると液中に大きな気泡が生じ、この気泡は槽内の液面
に浮上して破裂する。そして、この大きな気泡中に含ま
れるＦｅＣｌ2粉は、液中に十分に溶解することなく気
泡の破裂とともに液面上に飛散し、この飛散したＦｅＣ
ｌ2粉は再び液中に戻ることなく溶解槽の圧力抜き口等
から外気に放散されていることが判った。Regarding the problem that the FeCl 2 powder is scattered from the melting tank to the outside of the tank, the following facts have been clarified.
That is, when the FeCl 2 powder is pneumatically fed to the melting tank, it is fed at a high flow rate so as not to block the pneumatic piping, but when such a high-velocity gas is blown into the melting tank. Large bubbles are generated in the liquid, and these bubbles float on the liquid surface in the tank and burst. The FeCl 2 powder contained in the large bubbles is not fully dissolved in the liquid and is scattered on the liquid surface with the burst of the bubbles, and the scattered FeC 2
It was found that the l 2 powder was diffused to the outside air from the pressure release port of the dissolution tank without returning to the liquid again.
【０００９】そこで、本発明では溶解槽内におけるＦｅ
系沈殿物の生成を抑制するために、ＦｅＣｌ2粉を溶解
槽に気送するための搬送気体として非酸化性ガスを用
い、且つこれを溶解槽内でバブリングさせることによ
り、ＦｅＣｌ2粉を液中に溶解させるようにしたもので
ある。Therefore, in the present invention, Fe in the melting tank is
In order to suppress the generation of the system precipitate, a non-oxidizing gas is used as a carrier gas for feeding the FeCl 2 powder to the dissolution tank, and bubbling of the non-oxidizing gas in the dissolution tank is performed to liquidize the FeCl 2 powder. It is made to dissolve in.
【００１０】ＦｅＣｌ2粉の搬送気体である非酸化性ガ
スとしては、窒素ガスまたはＡｒ、Ｈｅ等の不活性ガス
若しくはこれらの混合ガス等を用いることができ、この
ような非酸化性ガスを搬送気体として用いることによ
り、搬送中におけるＦｅＣｌ2粉の水和化を適切に抑制
できるとともに、溶解槽中の液体の溶存酸素量を少なく
することができ、溶解槽でのＦｅＯ（ＯＨ）の生成・沈
殿を効果的に抑制する。なお、搬送気体として用いられ
る非酸化性ガスは、搬送中におけるＦｅＣｌ2粉の水和
化を抑制するため、なるべく乾燥したものであることが
好ましい。As the non-oxidizing gas which is a carrier gas for the FeCl 2 powder, nitrogen gas, an inert gas such as Ar or He or a mixed gas thereof can be used, and such a non-oxidizing gas is carried. By using it as a gas, it is possible to appropriately suppress the hydration of the FeCl 2 powder during transportation, reduce the amount of dissolved oxygen in the liquid in the dissolution tank, and generate FeO (OH) in the dissolution tank. Effectively suppress precipitation. The non-oxidizing gas used as the carrier gas is preferably as dry as possible in order to suppress hydration of the FeCl 2 powder during the carrier.
【００１１】また、非酸化性ガスを溶解槽内でバブリン
グさせことにより、液中に溶解している酸素を効果的に
脱気することができとともに、液とＦｅＣｌ2粉との接
触時間を長くとることができ、これらによって液中にお
けるＦｅＯ（ＯＨ）の生成が抑制されるとともに、Ｆｅ
Ｃｌ2粉を液に十分に溶解させることができる。また、
この非酸化性ガスのバブリングにおいて気泡を微細化す
ることにより、ＦｅＣｌ2粉と液との接触面積が増加す
るためＦｅＣｌ2粉が液中で十分に溶解し、この結果、
未溶解のＦｅＣｌ2粉が溶解槽の液面に達して槽外に飛
散することが適切に防止できる。Further, by bubbling the non-oxidizing gas in the melting tank, oxygen dissolved in the liquid can be effectively degassed, and the contact time between the liquid and the FeCl 2 powder is prolonged. It is possible to suppress the generation of FeO (OH) in the liquid, and
The Cl 2 powder can be sufficiently dissolved in the liquid. Also,
By atomizing the bubbles in the bubbling of the non-oxidizing gas, the contact area between the FeCl 2 powder and the liquid increases, so that the FeCl 2 powder is sufficiently dissolved in the liquid, and as a result,
It is possible to properly prevent undissolved FeCl 2 powder from reaching the liquid surface of the melting tank and scattering outside the tank.
【００１２】図１は本発明法の実施状況の一例を示すも
ので、１は溶解槽、２はこの溶解槽にＦｅＣｌ2粉を気
送するための気送配管、３は溶解槽１内の底部設けら
れ、前記気送配管２が接続された気泡発生器、４はＦｅ
Ｃｌ2粉用のホッパ、５はこのホッパ４から気送配管２
にＦｅＣｌ2を定量供給するためのロータリーフィー
ダ、６は溶解槽１の上端に設けられる圧抜き配管であ
る。また、この例ではＦｅＣｌ2粉の液中での滞留時間
を確保するため、槽内で溶解液の旋回流を形成させるよ
うにしている。このため溶解槽１の底部周方向複数箇所
には、液を槽中心から偏向した方向に噴射するためのノ
ズル７が設けられ、これらノズル７にはポンプ８及び循
環用配管９により槽内の溶解液が循環供給される。FIG. 1 shows an example of an implementation state of the method of the present invention. Reference numeral 1 is a melting tank, 2 is an air feeding pipe for feeding FeCl 2 powder to the melting tank, and 3 is a melting tank 1. A bubble generator 4 provided at the bottom and connected to the pneumatic pipe 2 is Fe.
A hopper 5 for Cl 2 powder, a pneumatic pipe 2 from this hopper 4.
2 is a rotary feeder for quantitatively supplying FeCl 2 and 6 is a pressure release pipe provided at the upper end of the melting tank 1. Further, in this example, in order to secure the residence time of the FeCl 2 powder in the liquid, a swirling flow of the dissolution liquid is formed in the tank. Therefore, nozzles 7 for injecting the liquid in a direction deflected from the center of the tank are provided at a plurality of positions in the circumferential direction of the bottom of the dissolution tank 1, and these nozzles 7 are melted in the tank by a pump 8 and a circulation pipe 9. The liquid is circulated and supplied.
【００１３】図３は気泡発生器３の詳細を示したもの
で、気泡発生器３は内部が中空のボックス体により構成
され、その側部には気送されたＦｅＣｌ2粉の供給部３
０が形成され、上面３１には微細な気泡を発生させるた
めに多数の微細な吹出孔が形成されている。また、この
吹出孔からのＦｅＣｌ2粉とガスの吹き出し流速を低く
抑えるため、上面３１には凹凸を設け表面積を大きくと
っている。気送配管２には搬送気体として窒素が供給さ
れており、この気送配管２にホッパ４からロータリーフ
ィーダ５によってＦｅＣｌ2粉が定量供給される。この
ＦｅＣｌ2粉は搬送気体とともに気泡発生器３に供給さ
れ、この気泡発生器３から溶解液中にバブリングされ
る。溶解槽１内では前記ノズル７からの液吹き込みによ
り旋回流が形成されている。FIG. 3 shows the details of the bubble generator 3. The bubble generator 3 is composed of a box body having a hollow inside, and a side thereof has a feeding portion 3 for the FeCl 2 powder which is air-fed.
0 is formed, and a large number of fine blowout holes are formed on the upper surface 31 to generate fine bubbles. Further, in order to suppress the flow velocity of the FeCl 2 powder and the gas blown out from the blowout holes, the upper surface 31 is provided with irregularities to have a large surface area. Nitrogen is supplied as a carrier gas to the pneumatic piping 2, and FeCl 2 powder is quantitatively supplied from the hopper 4 to the pneumatic piping 2 by the rotary feeder 5. This FeCl 2 powder is supplied to the bubble generator 3 together with the carrier gas, and is bubbled from the bubble generator 3 into the solution. A swirling flow is formed in the melting tank 1 by blowing the liquid from the nozzle 7.
【００１４】[0014]
〔実施例１〕高珪素鋼帯製造用の連続浸珪処理設備に図
１〜図３に示す設備を付設し、ＦｅＣｌ2の搬送気体と
して窒素を用いてＦｅＣｌ2の湿式回収を行い、溶解槽
底部の沈殿物の生成状況を調べた。また、比較のため
に、ＦｅＣｌ2の搬送気体としてエアを用いてＦｅＣｌ2
の湿式回収を行い、同様の調査を行った。なお、搬送気
体として窒素を用いた場合には、ＦｅＣｌ2粉を入れる
ホッパ４内の雰囲気も窒素雰囲気とした。また、搬送気
体の流速は気送配管内でのＦｅＣｌ2粉の閉塞を考慮し
ていずれも３０ｍ／ｓ以上とした。気泡発生器３には耐
蝕性を考慮してテフロンを全面にコーティングしたステ
ンレス鋼を用い、気泡発生器３の上面の吹出孔は、Ｆｅ
Ｃｌ2粉による孔の閉塞防止や気泡の微細化を考慮し
て、孔径１．５ｍｍ、開口比２０％、上面の吹き出し部
の面積を０．９５ｍ2とした。また、溶解槽本体は耐蝕
性を考慮しＦＲＰを用いた。本実施例では溶解槽中にＦ
ｅＣｌ2粉が４５ｋｇ／ｈの供給量で供給され、この結
果、各場合の沈殿物の生成量は以下の通りであった。 搬送気体が窒素の場合：１．４ｇ／ｈｒ 搬送気体がエアの場合：３０４ｇ／ｈｒ このようにＦｅＣｌ2粉の搬送気体として窒素ガスを用
い、これを溶解槽内でバブリングすることにより、溶解
槽での沈殿物の生成を効果的に抑制することができる。Example 1 annexed facilities shown in FIGS. 1 to 3 in a continuous siliconizing treatment facility of a high silicon steel strip for manufacturing performs wet recovery of FeCl 2 with nitrogen as the carrier gas of FeCl 2, dissolver The state of formation of the bottom sediment was investigated. In addition, for comparison, FeCl 2 was prepared by using air as a carrier gas of FeCl 2.
Wet recovery was performed and the same investigation was conducted. When nitrogen was used as the carrier gas, the atmosphere in the hopper 4 containing the FeCl 2 powder was also a nitrogen atmosphere. In addition, the flow rate of the carrier gas was set to 30 m / s or more in consideration of the clogging of the FeCl 2 powder in the pneumatic pipe. The bubble generator 3 is made of stainless steel coated with Teflon on the whole surface in consideration of corrosion resistance, and the blow-out holes on the upper surface of the bubble generator 3 are made of Fe.
In consideration of prevention of clogging of holes by Cl 2 powder and miniaturization of air bubbles, the hole diameter was 1.5 mm, the opening ratio was 20%, and the area of the blowing portion on the upper surface was 0.95 m 2 . Further, FRP was used for the main body of the melting tank in consideration of corrosion resistance. In this embodiment, F
The eCl 2 powder was fed at a feed rate of 45 kg / h, and as a result, the amount of precipitate produced in each case was as follows. When the carrier gas is nitrogen: 1.4 g / hr When the carrier gas is air: 304 g / hr In this way, nitrogen gas is used as the carrier gas for the FeCl 2 powder, and by bubbling this in the melting tank, the dissolution tank It is possible to effectively suppress the formation of precipitates in
【００１５】〔実施例２〕実施例１と同様の設備及び条
件で、搬送気体として窒素ガスを用いＦｅＣｌ2の湿式
回収を行い、圧抜き配管６から排出されるＦｅＣｌ2粉
の粉塵濃度を測定した。また、比較のために、ＦｅＣｌ
2粉＋窒素を気泡発生器３を用いることなく、そのまま
溶解槽底部に吹き込む方式により、ＦｅＣｌ2の湿式回
収を行い、同様の粉塵測定を行った。各場合について測
定された粉塵濃度は以下の通りであり、気泡発生器を用
いてバブリングすることにより、ＦｅＣｌ2粉が溶液中
に十分に溶解するため、外気へのＦｅＣｌ2粉の飛散が
低く抑えられていることが判る。 気泡発生器有り：０．００９ｇ／Ｎｍ3 気泡発生器無し：０．１０８ｇ／Ｎｍ3 Example 2 Under the same equipment and conditions as in Example 1, FeCl 2 was wet-collected using nitrogen gas as a carrier gas, and the dust concentration of FeCl 2 powder discharged from the depressurizing pipe 6 was measured. did. Also, for comparison, FeCl
FeCl 2 was wet-collected by a method of directly blowing 2 powders + nitrogen into the bottom of the melting tank without using the bubble generator 3, and the same dust measurement was performed. The dust concentration measured in each case is as follows. By bubbling with a bubble generator, the FeCl 2 powder is sufficiently dissolved in the solution, and the scattering of FeCl 2 powder to the outside air is kept low. It is understood that it is being done. There bubble generator: 0.009g / Nm 3 bubble generator without: 0.108g / Nm 3
【００１６】[0016]
【発明の効果】以上述べた本発明によれば、塩化鉄粉を
湿式回収する際に溶解槽内でのＦｅ系沈殿物の生成を適
切に防止することができ、また特に請求項２に記載の発
明によれば、未溶解の塩化鉄粉が溶解槽の外部に飛散す
ることも適切に防止することができる。EFFECTS OF THE INVENTION According to the present invention described above, it is possible to appropriately prevent the generation of Fe-based precipitates in the dissolution tank when the iron chloride powder is wet-recovered, and particularly to claim 2. According to the invention, it is possible to appropriately prevent the undissolved iron chloride powder from scattering outside the dissolution tank.
【図１】本発明の実施に供される設備及びこれによる実
施状況の一例を示す説明図FIG. 1 is an explanatory diagram showing an example of equipment used for carrying out the present invention and an implementation status thereof.
【図２】図１に示す設備の水平断面図FIG. 2 is a horizontal sectional view of the equipment shown in FIG.
【図３】図１に示す設備の気泡発生器を部分的に示す斜
視図FIG. 3 is a perspective view partially showing a bubble generator of the equipment shown in FIG.
１…溶解槽、２…気送配管、３…気泡発生器、４…ホッ
パ、５…ロータリーフィーダ、６…圧抜き配管、７…ノ
ズル、８…ポンプ、９…循環用配管1 ... Melting tank, 2 ... Pneumatic piping, 3 ... Bubble generator, 4 ... Hopper, 5 ... Rotary feeder, 6 ... Pressure release piping, 7 ... Nozzle, 8 ... Pump, 9 ... Circulation piping
───────────────────────────────────────────────────── フロントページの続き (72)発明者 鈴木 絋之 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内 (72)発明者 山岸 新一 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akiyuki Suzuki, 1-2, Marunouchi, Chiyoda-ku, Tokyo Japan Steel Pipe Co., Ltd. (72) Inventor, Shinichi Yamagishi 1-2-1, Marunouchi, Chiyoda-ku, Tokyo No. Nippon Steel Tube Co., Ltd.
Claims (2)
気送して、溶解槽内で非酸化性ガスをバブリングさせ、
塩化鉄粉を液中に溶解させることを特徴とする塩化鉄粉
の湿式回収方法。1. Iron chloride powder is pneumatically fed to a dissolution tank by a non-oxidizing gas, and the non-oxidizing gas is bubbled in the dissolution tank,
A wet recovery method of iron chloride powder, which comprises dissolving iron chloride powder in a liquid.
う溶解槽内でバブリングさせることを特徴とする請求項
１記載の塩化鉄粉の湿式回収方法。2. The method for wet-collecting iron chloride powder according to claim 1, wherein the non-oxidizing gas is bubbled in the dissolution tank so as to form fine bubbles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33838294A JP3106887B2 (en) | 1994-12-29 | 1994-12-29 | Wet recovery method of iron chloride powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33838294A JP3106887B2 (en) | 1994-12-29 | 1994-12-29 | Wet recovery method of iron chloride powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08188418A true JPH08188418A (en) | 1996-07-23 |
| JP3106887B2 JP3106887B2 (en) | 2000-11-06 |
Family
ID=18317634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33838294A Expired - Fee Related JP3106887B2 (en) | 1994-12-29 | 1994-12-29 | Wet recovery method of iron chloride powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3106887B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014019593A (en) * | 2012-07-13 | 2014-02-03 | Jfe Steel Corp | Method and apparatus for purifying aqueous solution of iron chloride (ii) |
| JP2014168725A (en) * | 2013-03-01 | 2014-09-18 | Jp Steel Plantech Co | Wet type melting device for powder carried by gas |
| JP2021024746A (en) * | 2019-07-31 | 2021-02-22 | Ｊｆｅスチール株式会社 | Wet recovery method for iron chloride powder |
-
1994
- 1994-12-29 JP JP33838294A patent/JP3106887B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014019593A (en) * | 2012-07-13 | 2014-02-03 | Jfe Steel Corp | Method and apparatus for purifying aqueous solution of iron chloride (ii) |
| JP2014168725A (en) * | 2013-03-01 | 2014-09-18 | Jp Steel Plantech Co | Wet type melting device for powder carried by gas |
| JP2021024746A (en) * | 2019-07-31 | 2021-02-22 | Ｊｆｅスチール株式会社 | Wet recovery method for iron chloride powder |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3106887B2 (en) | 2000-11-06 |
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