JPS60162736A - Treatment of electric furnace dust - Google Patents
Treatment of electric furnace dustInfo
- Publication number
- JPS60162736A JPS60162736A JP59014464A JP1446484A JPS60162736A JP S60162736 A JPS60162736 A JP S60162736A JP 59014464 A JP59014464 A JP 59014464A JP 1446484 A JP1446484 A JP 1446484A JP S60162736 A JPS60162736 A JP S60162736A
- Authority
- JP
- Japan
- Prior art keywords
- electric furnace
- oxide
- residual ash
- furnace dust
- aluminum
- 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
- 239000000428 dust Substances 0.000 title claims abstract description 36
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 28
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- 150000002739 metals Chemical class 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- 229910052748 manganese Inorganic materials 0.000 claims abstract 3
- 239000000203 mixture Substances 0.000 claims abstract 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 23
- 238000003723 Smelting Methods 0.000 claims description 18
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 16
- 239000011701 zinc Substances 0.000 claims description 16
- 239000008187 granular material Substances 0.000 claims description 7
- 239000003832 thermite Substances 0.000 claims description 6
- 239000003517 fume Substances 0.000 claims description 5
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims 1
- 239000011572 manganese Substances 0.000 claims 1
- 238000007670 refining Methods 0.000 abstract description 9
- 239000002893 slag Substances 0.000 abstract description 9
- 229910052793 cadmium Inorganic materials 0.000 abstract description 7
- 229910044991 metal oxide Inorganic materials 0.000 abstract description 7
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052745 lead Inorganic materials 0.000 abstract 2
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 239000006148 magnetic separator Substances 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 239000002994 raw material Substances 0.000 description 8
- 150000004706 metal oxides Chemical class 0.000 description 6
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000009628 steelmaking Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002440 industrial waste Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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)
Abstract
Description
【発明の詳細な説明】
本発明は、製鋼用電気炉より発生するダストを無公害で
処理して有価金属を回収する方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for recovering valuable metals by treating dust generated from an electric furnace for steelmaking in a non-polluting manner.
電気炉製鋼では、主原料にスクラップを使用し、溶解、
精錬して普通鋼をはしめ各種の特殊鋼を生産している。Electric furnace steelmaking uses scrap as the main raw material, melting,
They refine ordinary steel and produce various special steels.
この方法では、製鋼時に溶融金属または金属酸化物が飛
散したり揮発して集塵機にダストとして回収される。こ
のダストの発生量は、生産された鋼塊に対し１．６〜２
．３重量％に達している。In this method, molten metal or metal oxides are scattered or volatilized during steel manufacturing and are collected as dust in a dust collector. The amount of this dust generated is 1.6 to 2
．． It reaches 3% by weight.
電気炉ダストは、鉄、亜鉛の酸化物を主成分とし、さら
に鉛、カドミウム、マンガン、銅等の金属酸化物を含有
している。電気炉ダストは、特に有−１ｆ重金属である
鉛、亜鉛、カドミウム等の酸化物を含有し、しかも粒度
が１〜１０ミクロン（中心サイズが３〜５ミクロン）と
極めて細かく活性があるため水に溶出する特性を有して
おり、したがって埋め立て処分ができず、最も処理の困
難な産業廃奮物である。従来では、電気炉ダストを固形
化処理して廃棄するか、非鉄精錬の工程で処理していた
。このため、電気炉ダストの処理費が高価となり、この
分製鋼コストを押し上げていた。Electric furnace dust is mainly composed of oxides of iron and zinc, and further contains metal oxides such as lead, cadmium, manganese, and copper. Electric furnace dust contains oxides of heavy metals such as lead, zinc, and cadmium, and is extremely fine and active with a particle size of 1 to 10 microns (center size of 3 to 5 microns), so it is difficult to absorb into water. It has the property of leaching out and therefore cannot be disposed of in a landfill, making it the most difficult industrial waste to dispose of. Conventionally, electric furnace dust was either solidified and disposed of, or processed in the non-ferrous refining process. For this reason, the cost of processing electric furnace dust has become expensive, which has pushed up steel manufacturing costs.
本発明は上記事情に基づ外なされたもので、その目的は
、電気炉ダストを無公害に処理するとともに、電気炉ゲ
スを中の有価金属を回収することができる方法を提供す
ることにある。The present invention was made based on the above circumstances, and its purpose is to provide a method that can treat electric furnace dust in a non-polluting manner and recover valuable metals inside electric furnace dust. .
本発明方法では、電気炉ダストが酸化金属を多量に含有
した酸化性の産業廃棄物であることと、アルミ精錬残灰
が金属アルミを多量に含有する強還元性の産業廃棄物で
あることに着目してなされたものである。すなわち、電
気炉ダストの金属酸化物を、アルミ精錬残灰の金属アル
ミとのテルミット反応により還元し、この還元した金属
を揮発性金属と不揮発性金属とに分けて回収するもので
ある。In the method of the present invention, electric furnace dust is an oxidizing industrial waste containing a large amount of metal oxides, and aluminum smelting residual ash is a strongly reducing industrial waste containing a large amount of metallic aluminum. This was done with this in mind. That is, metal oxides in electric furnace dust are reduced by a thermite reaction with aluminum metal in aluminum refining ash, and the reduced metals are separated into volatile metals and non-volatile metals and recovered.
アルミ精錬残灰は、主としてアルミニ次精錬において残
留アルミを回収した残灰である。この残灰は、粒度が１
６〜４００メツシユ（中心サイズが１００から１５０メ
ツシユ）であり、アルミナが主成分であるが金属アルミ
を５〜３０重量％含有している。このアルミ精錬残灰の
一部は固形化して製鋼用造滓剤として活用しているが、
大部分は廃棄処理している。すなわち、アルミ精錬残灰
に水を加えて窒化アルミ（ＡＩＮ等）を酸化させ、アン
モニアガスや水素がスを自然に抜いた後、埋め立て処分
している。しかしながら、この処分方法では公害問題が
生じるとともにはコストが高く、アルミニ次精錬におけ
る問題点になっていた。Aluminum refining residual ash is mainly residual aluminum recovered from aluminum secondary refining. This residual ash has a particle size of 1
It has a size of 6 to 400 meshes (center size is 100 to 150 meshes), and is mainly composed of alumina, but contains 5 to 30% by weight of metallic aluminum. Some of this aluminum smelting ash is solidified and used as a slag agent for steelmaking.
Most of it is disposed of. That is, water is added to aluminum smelting residual ash to oxidize aluminum nitride (AIN, etc.), and after naturally removing ammonia gas and hydrogen, it is disposed of in a landfill. However, this disposal method causes pollution problems and is expensive, which has been a problem in aluminum secondary refining.
以下、本発明をｔｐＪｉ図を参照して説明する。まず、
電気炉ダストにアルミ精錬残灰を加えて攪拌し混合する
。アルミ精錬残灰の配合量は、含有金属アルミの反応効
率が約６０％と見込んで化学当量配合する。電気炉ダス
トの成分比に大トな変動はないため、アルミ精錬残灰の
配合量は、主に金属アルミの含有量によって決定し、金
属アルミ′め含有率が高ければ少なく、低ければ多くす
る。例えば、アルミ精錬残灰中の金属アルミ含有量が１
５重量％の場合には、アルミ精錬残灰の配合量を電気炉
ダストの約２．３重量倍とする。なお、アルミ精錬残灰
中の金属アルミの含有量は、８〜３５％が好ましい。８
％以下であると、テルミット反応の速度が遅くなるから
である。したがって、実際のアルミ精錬残灰の配合量は
、電気炉ダストの約１．１〜４．３重量倍である。The present invention will be explained below with reference to the tpJi diagram. first,
Add aluminum smelting ash to electric furnace dust and stir to mix. The amount of aluminum smelting residual ash is chemically equivalent, assuming that the reaction efficiency of the metal aluminum contained is about 60%. Since there is no major change in the component ratio of electric furnace dust, the amount of aluminum smelting residual ash to be mixed is determined mainly by the metal aluminum content. . For example, the metallic aluminum content in aluminum smelting residual ash is 1
In the case of 5% by weight, the amount of aluminum smelting residual ash is about 2.3 times the weight of electric furnace dust. Note that the content of metallic aluminum in the aluminum smelting residual ash is preferably 8 to 35%. 8
% or less, the rate of thermite reaction becomes slow. Therefore, the actual content of aluminum smelting residual ash is about 1.1 to 4.3 times the weight of electric furnace dust.
上記混合原料を８００〜１２００度Ｃで加熱する。加熱
は回転炉または電気炉内で行なう。８００度Ｃ近くにな
ると、電気炉ダストの鉛、亜鉛、カドミウム等の酸化物
と、アルミ精錬残灰の金属アルミとがテルミット反応を
起こし、還元された鉛。The above mixed raw materials are heated at 800 to 1200 degrees Celsius. Heating takes place in a rotary or electric furnace. When the temperature approaches 800 degrees Celsius, oxides such as lead, zinc, and cadmium in electric furnace dust and metallic aluminum in aluminum smelting ash undergo a thermite reaction, resulting in reduced lead.
亜鉛、カドミウムがヒユームとなって揮発する。Zinc and cadmium become fume and volatilize.
この反応は１２００度Ｃでほぼ完了する。鉛、亜鉛、カ
ドミウムのヒユームはファンに引かれていく過程で再酸
化して酸化物ヒユームとなり、集塵機で回収する。集塵
機で回収された産物は、亜鉛を多量に含有するため亜鉛
精鉱原料として有効に活用できる。以下の説明では、こ
の産物を粗亜鉛精鉱と称す。This reaction is almost complete at 1200 degrees Celsius. Lead, zinc, and cadmium fumes are reoxidized as they are drawn into the fan and become oxide fumes, which are then collected by a dust collector. The product recovered by the dust collector contains a large amount of zinc, so it can be effectively used as a raw material for zinc concentrate. In the following description, this product will be referred to as crude zinc concentrate.
一方、不揮発成分である鉄、マンガン、ｔｌｊ４等の酸
化物は、金属アルミとともに８００〜１２００度Ｃに加
熱され、半溶融状態となる。この半溶融状態のスラグの
中で、上記酸化物が金属アルミとテルミット反応を起こ
し、金属鉄、金属マンガン、金属銅となり、これらは最
終的に２〜１５ｗｕｎ程度の粒塊（還元鉄が主成分であ
るため以下還元鉄粒塊と称す）になる。On the other hand, oxides such as iron, manganese, and tlj4, which are non-volatile components, are heated to 800 to 1200 degrees Celsius together with metal aluminum, and become semi-molten. In this semi-molten slag, the above-mentioned oxide causes a thermite reaction with metallic aluminum to become metallic iron, metallic manganese, and metallic copper, which are finally formed into granular agglomerates of about 2 to 15 wun (reduced iron is the main component). Therefore, it becomes a reduced iron granule mass).
炉から排出される還元鉄粒塊とスラグが冷却して固まっ
て焼結クリンカーとなり、これを破砕した後、磁力選鉱
によって還元鉄粒塊を分離回収する。この還元鉄粒塊は
、電気炉製鋼用の鉄原料として再利用できる。また、ス
ラグ砕石は、アルミナを主成分とし、コンクリート用骨
材等として無公害かつ有効に活用できる。The reduced iron granules and slag discharged from the furnace are cooled and hardened to form sintered clinker, which is crushed and then the reduced iron granules are separated and recovered by magnetic separation. This reduced iron granule can be reused as an iron raw material for electric furnace steelmaking. In addition, crushed slag stone has alumina as its main component and can be used effectively and without pollution as aggregate for concrete.
なお、アルミ精錬残灰中に含有される窒化アルＡＩＮは
電気炉ダスト中の金属酸化物を還元して窒素ガスを発生
する。この窒素ガスは炉外へ排出される。Note that the aluminum nitride AIN contained in the aluminum smelting residual ash reduces metal oxides in the electric furnace dust to generate nitrogen gas. This nitrogen gas is discharged outside the furnace.
茨」升
原料とする電気炉ダストの成分比を第１表に示し、アル
ミ精錬残灰の成分比を第２表に示す。上記電気炉ゲス）
−１００ｇと、アルミ精錬残灰２３（）８とを、ロータ
リーキルン内に供給して加熱焙焼した結果、集Ｍ磯で第
３表の成分比を有する粗亜鉛精鉱を得た。第３表がら明
らかなように、粗亜鉛精鉱中の亜鉛の含有率は５２．６
と高く、亜鉛原料として有用なものであった。また、第
４表はロータリーキルンから排出されバクリンカ−の重
）ｉシおよび成分比を示すとともに、このクリンカーを
破砕分離して得たスラグ砕石と還元鉄粒塊の重量および
成分比を示す。第４表から明らかなように、還元鉄粒塊
中の還元鉄の含有率が８７．９６％と高く、鉄原料とし
て有用なものであった。Table 1 shows the component ratios of electric furnace dust used as raw material for thorns, and Table 2 shows the component ratios of aluminum smelting residual ash. above electric furnace)
-100g and aluminum refining residual ash 23()8 were fed into a rotary kiln and heated and roasted, resulting in crude zinc concentrate having the component ratio shown in Table 3. As is clear from Table 3, the content of zinc in the crude zinc concentrate is 52.6
It was found to be useful as a raw material for zinc. Further, Table 4 shows the weight and component ratio of the clinker discharged from the rotary kiln, as well as the weight and component ratio of the crushed slag and reduced iron particles obtained by crushing and separating this clinker. As is clear from Table 4, the content of reduced iron in the reduced iron granules was as high as 87.96%, and was useful as an iron raw material.
また、スラグ砕石には、有毒成分の含有率が極めて少な
く、コンクリート骨材として有用なものであった。In addition, the crushed slag stone had an extremely low content of toxic components and was useful as concrete aggregate.
（余白） 牧−置一 本発明を実施する装置の一例を第２図に示す。(margin) Maki-Okiichi An example of an apparatus for carrying out the present invention is shown in FIG.
図中１は、傾斜して配置されたロータリーキルン（炉）
である。ロータリーキルン１の装入口１ａには、電気炉
ダスト用ホッパー２．アルミ精錬残灰用ホッパー３から
、コンベア４．シュート５を経て、電気炉ダストおよび
アルミ精錬残灰を供給する。ロータリーキルン１内では
これら原料を攪拌混合し、さらに、オイルバーナー６に
よって加熱蛇焼する。1 in the figure is a rotary kiln (furnace) arranged at an angle.
It is. At the charging port 1a of the rotary kiln 1, there is an electric furnace dust hopper 2. From hopper 3 for aluminum smelting residual ash to conveyor 4. Electric furnace dust and aluminum smelting residual ash are supplied through chute 5. These raw materials are stirred and mixed in the rotary kiln 1, and then heated and roasted using an oil burner 6.
ロータリーキルン１内でテルミット反応によって発生し
た鉛、亜鉛等のヒユームを、ファン７により、ロータリ
ーキルン１の装入口１ａに接続されたダクト８を経てバ
ックフィルター９（集塵機）に導く。このバックフィル
ター９によって集めた粗亜鉛精鉱を、コンベア１０を経
てホッパー１１に貯え、ここからトラック１２等で搬出
する。Fumes such as lead and zinc generated by thermite reaction in the rotary kiln 1 are guided by a fan 7 to a back filter 9 (dust collector) through a duct 8 connected to the charging port 1a of the rotary kiln 1. The crude zinc concentrate collected by this back filter 9 is stored in a hopper 11 via a conveyor 10, and is transported from there by a truck 12 or the like.
一方、ロータリーキルン１の排出口１ｂから排出した焼
結クリンカーを、ホッパー２０を経てクラッシャー２１
に送り、ここで破砕する。この後、磁力選鉱装置２２に
送り、ここで還元鉄粒塊を選別してヤード２３に供給し
、残りのスラグ砕石を他のヤード２４に供給する。On the other hand, the sintered clinker discharged from the discharge port 1b of the rotary kiln 1 is passed through the hopper 20 to the crusher 21.
and crushed there. Thereafter, it is sent to a magnetic concentrator 22, where the reduced iron granules are sorted and supplied to a yard 23, and the remaining crushed slag is supplied to another yard 24.
以上説明したように、本発明によれば、電気炉ダストの
金属酸化物をアルミ精錬残灰を用いて還元し回収するも
のである。したがって、電気炉ダストを無公害かつ安価
に処理できるとともに、資源の有効利用を図ることがで
きる。As explained above, according to the present invention, metal oxides in electric furnace dust are reduced and recovered using aluminum smelting residual ash. Therefore, electric furnace dust can be treated non-polluting and at low cost, and resources can be used effectively.
第１図は本発明の電気炉ダスト処理方法を示すフローシ
ート図であり、第２図は本発明方法を実施するための装
置の一例を示す概略図である。 １・・・ロータリーキ
ルン（炉）、？・・・ファン、９・・・バックフィルタ
ー（集塵機）、２１・・・クラッシャー、２２・・・磁
力選鉱装置
出願人 兼子商事株式会社
代理人 弁理士 渡辺昇 〜FIG. 1 is a flow sheet diagram showing the electric furnace dust treatment method of the present invention, and FIG. 2 is a schematic diagram showing an example of an apparatus for carrying out the method of the present invention. 1... Rotary kiln (furnace)? ...Fan, 9...Back filter (dust collector), 21...Crusher, 22...Magnetic ore sorting device Applicant Kaneko Shoji Co., Ltd. Agent Patent attorney Noboru Watanabe ~
Claims (1)
、電気炉ダスト中に含有される鉛、亜鉛。 鉄、マンガン等の有価金属の酸化物を、アルミ精錬残灰
中に含有される金属アルミとのテルミット反応により還
元し、揮発金属である鉛、亜鉛をヒユームとして分離し
ファンで導いて集塵機で回収するとともに、不揮発金属
である鉄、マンガンを焼結クリンカー中に粒塊として残
留させて回収することを特徴とする電気炉ゲス′ト処理
方法。[Scope of Claims] Lead and zinc contained in electric furnace dust obtained by mixing electric furnace dust with aluminum smelting residual ash and heating the mixture in a furnace. Oxides of valuable metals such as iron and manganese are reduced through a thermite reaction with metallic aluminum contained in aluminum smelting residual ash, and volatile metals such as lead and zinc are separated as fumes, guided by a fan, and collected by a dust collector. At the same time, an electric furnace guest treatment method is characterized in that iron and manganese, which are non-volatile metals, are left in the sintered clinker as granules and recovered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59014464A JPS60162736A (en) | 1984-01-31 | 1984-01-31 | Treatment of electric furnace dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59014464A JPS60162736A (en) | 1984-01-31 | 1984-01-31 | Treatment of electric furnace dust |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60162736A true JPS60162736A (en) | 1985-08-24 |
| JPS644572B2 JPS644572B2 (en) | 1989-01-26 |
Family
ID=11861772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59014464A Granted JPS60162736A (en) | 1984-01-31 | 1984-01-31 | Treatment of electric furnace dust |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60162736A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006328451A (en) * | 2005-05-24 | 2006-12-07 | Sumitomo Heavy Ind Ltd | Method and apparatus for treating zinc-containing iron oxide |
| WO2011081267A1 (en) * | 2009-12-30 | 2011-07-07 | 현대제철 주식회사 | Method and apparatus for recovering valuable metals from slag and for producing multifunctional aggregates |
| KR101076157B1 (en) | 2010-01-28 | 2011-10-21 | 현대제철 주식회사 | Device for recovering valuable metal and producing of multi-functional aggregate using slag |
| KR101175423B1 (en) * | 2009-12-30 | 2012-08-20 | 현대제철 주식회사 | Method for recovering valuable metals from slag |
| CN114317964A (en) * | 2022-01-05 | 2022-04-12 | 重庆赛迪热工环保工程技术有限公司 | Process and device for reducing zinc-containing material by vacuum low-temperature aluminothermic process |
-
1984
- 1984-01-31 JP JP59014464A patent/JPS60162736A/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006328451A (en) * | 2005-05-24 | 2006-12-07 | Sumitomo Heavy Ind Ltd | Method and apparatus for treating zinc-containing iron oxide |
| WO2011081267A1 (en) * | 2009-12-30 | 2011-07-07 | 현대제철 주식회사 | Method and apparatus for recovering valuable metals from slag and for producing multifunctional aggregates |
| CN102471827A (en) * | 2009-12-30 | 2012-05-23 | 现代制铁株式会社 | Method and apparatus for recovering valuable metals from slag and manufacturing multifunctional agglomerates |
| KR101175423B1 (en) * | 2009-12-30 | 2012-08-20 | 현대제철 주식회사 | Method for recovering valuable metals from slag |
| US8534578B2 (en) | 2009-12-30 | 2013-09-17 | Hyundai Steel Company | Method and apparatus for recovering valuable metals from slag and manufacturing multifunctional aggregate |
| KR101076157B1 (en) | 2010-01-28 | 2011-10-21 | 현대제철 주식회사 | Device for recovering valuable metal and producing of multi-functional aggregate using slag |
| CN114317964A (en) * | 2022-01-05 | 2022-04-12 | 重庆赛迪热工环保工程技术有限公司 | Process and device for reducing zinc-containing material by vacuum low-temperature aluminothermic process |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS644572B2 (en) | 1989-01-26 |
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