JPS63149339A - Device for refining crude copper - Google Patents
Device for refining crude copperInfo
- Publication number
- JPS63149339A JPS63149339A JP29495786A JP29495786A JPS63149339A JP S63149339 A JPS63149339 A JP S63149339A JP 29495786 A JP29495786 A JP 29495786A JP 29495786 A JP29495786 A JP 29495786A JP S63149339 A JPS63149339 A JP S63149339A
- Authority
- JP
- Japan
- Prior art keywords
- copper
- zone
- contg
- temperature oxidation
- concentrate
- 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.)
- Pending
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 239000010949 copper Substances 0.000 title claims abstract description 30
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 25
- 238000007670 refining Methods 0.000 title abstract 3
- 239000012141 concentrate Substances 0.000 claims abstract description 12
- 239000002893 slag Substances 0.000 claims abstract description 7
- 238000005192 partition Methods 0.000 claims abstract description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 21
- 230000003647 oxidation Effects 0.000 claims description 19
- 238000003723 Smelting Methods 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 abstract description 7
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 abstract 3
- 229910052951 chalcopyrite Inorganic materials 0.000 abstract 2
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 abstract 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 abstract 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 abstract 1
- 239000005751 Copper oxide Substances 0.000 abstract 1
- 229910000431 copper oxide Inorganic materials 0.000 abstract 1
- 229910052683 pyrite Inorganic materials 0.000 abstract 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 abstract 1
- 239000011028 pyrite Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 229910052717 sulfur Inorganic materials 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000000155 melt Substances 0.000 description 5
- 238000006477 desulfuration reaction Methods 0.000 description 4
- 230000023556 desulfurization Effects 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 description 1
- CTQZMNHRQCCAJE-UHFFFAOYSA-N copper;iron(2+);oxygen(2-) Chemical compound [O-2].[O-2].[Fe+2].[Cu+2] CTQZMNHRQCCAJE-UHFFFAOYSA-N 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】
先ず最初に、本発明の基礎となる直接銅製錬方法におい
て説明する。第一図はその基本的原理を示すブＯセス工
程図である。このプロセスを構成する主要な化学反応は
、
（ＩＩ Ｃｕ Ｆ１３３２ （ＤＮＡ’／Ｍ完全脱硫
酸化（２溶融銅フェライト−溶銅共存相の弱還元（３）
溶融ＣＬＩ−Ｆｅ合金中１”ｅの酸化反応（勾 溶
融ＣＬＩの脱酸
の４つである。（１）及び（２）について分脱する：（
１） Ｃｕ Ｆｅ ３２の高温完全脱硫酸化Ｃｕ Ｆ
ｅ Ｓ２が完全酸化脱硫されて生成する相の特徴は、溶
鋼とＣｕを溶解した液体酸化鉄との２相平衡がほぼ全域
を占めていることである。DETAILED DESCRIPTION OF THE INVENTION First, a direct copper smelting method, which is the basis of the present invention, will be explained. Figure 1 is a process diagram showing the basic principle. The main chemical reactions that constitute this process are
Oxidation reaction of 1"e in molten CLI-Fe alloy (gradient) There are four deoxidation reactions of molten CLI. (1) and (2) are separated: (
1) High temperature complete desulfation of CuFe32CuF
e The characteristic of the phase generated by complete oxidative desulfurization of S2 is that a two-phase equilibrium of molten steel and liquid iron oxide containing dissolved Cu occupies almost the entire area.
酸化の反応進行度の終了点は、目標とする脱硫水準に依
存する。現在粗銅中の許容硫黄レベルとみなされている
０、０５％という数値が一応の目標値として採用しつる
。本プロセスでは、この後の引続く反応ではＳは除去さ
れないので、この目標値までの脱硫はこの酸化の段階で
達成しておかねばならない。The end point of the oxidation rate depends on the target level of desulfurization. The value of 0.05%, which is currently considered the permissible sulfur level in blister copper, will be adopted as a tentative target value. In this process, since S is not removed in subsequent reactions, desulfurization to this target value must be achieved at this oxidation stage.
脱硫の結果として非常に高い濃度のＳＯ２ガスが発生す
る。この８０２排ガスは、Ｓ０２処理工程に送られる。Very high concentrations of SO2 gas are generated as a result of desulfurization. This 802 exhaust gas is sent to the S02 treatment process.
（２） 溶融銅フェライト−溶鋼共存相の弱還元第一
段階で過剰に酸化された液体酸化鉄−溶鋼共存融体が形
成されるので弱還元を行い、Ｃｕが許容濃度以下のスラ
グと溶鋼との２相に分離する。(2) Weak reduction of the molten copper ferrite-molten steel coexistence phase In the first stage, an excessively oxidized liquid iron oxide-molten steel coexistence melt is formed, so weak reduction is performed to combine the slag and molten steel in which the Cu concentration is below the allowable concentration. It separates into two phases.
第二及び三図は、本発明に従う粗銅製造装置の具体例を
示す。Figures 2 and 3 show a specific example of the blister copper manufacturing apparatus according to the present invention.
第二図は、高温酸化ゾーンと還元ゾーンとを単一装置内
に組込んだ具体例を示す。粗銅製造装置１は、高温酸化
ゾーン３と還元ゾーン５とを具備する。高温酸化ゾーン
３は、シャフト状区画４から構成され、その頂端には銅
精鉱及び酸化ガス供給用のランスが装備される。銅精鉱
と酸化ガスとの反応により、１５００〜１８００℃、通
常１６００℃前後の燃焼炎が生じ、銅精鉱は落下中完全
脱ＩｉＡ酸化されて、溶融銅フェライト−溶銅共存相と
して下部に堆積する。このような高温酸化ゾーンを形成
するために、酸素ガスは、一般に３０％以上、好ましく
は５０〜７０％の高酸素濃度と一般に２００〜６０ＯＮ
ｍ ３ ／精鉱トンの流向を持つ高い酸化ポテンシャル
のものとして供給される。副生する高濃度８０２を排出
する為の排出管７が設けられている。高濃度８０２ガス
は、Ｓ○２処理設備に送られる。FIG. 2 shows an embodiment that incorporates a high temperature oxidation zone and a reduction zone into a single device. The blister copper manufacturing apparatus 1 includes a high temperature oxidation zone 3 and a reduction zone 5. The high temperature oxidation zone 3 consists of a shaft-like section 4, the top of which is equipped with a lance for supplying copper concentrate and oxidizing gas. The reaction between the copper concentrate and the oxidizing gas generates a combustion flame at a temperature of 1500 to 1800°C, usually around 1600°C, and the copper concentrate is completely deoxidized by IiA while falling, leaving the bottom as a molten copper ferrite-molten copper coexisting phase. accumulate. To form such a high temperature oxidation zone, the oxygen gas has a high oxygen concentration of generally 30% or more, preferably 50-70% and generally 200-60ON.
It is supplied as a high oxidation potential with a flow direction of m 3 /t of concentrate. A discharge pipe 7 is provided for discharging high concentration 802 as a by-product. The highly concentrated 802 gas is sent to the S○2 processing facility.
底部に生成する過剰酸化された酸化鉄−銅共存融体は還
元ゾーン５に移動する。The overoxidized iron oxide-copper coexisting melt generated at the bottom moves to the reduction zone 5.
高温ゾーン３と還元ゾーン５とを分隔する為に隔壁９が
還元ゾーンの天井から融体中に突入している。In order to separate the high temperature zone 3 and the reduction zone 5, a partition wall 9 projects into the melt from the ceiling of the reduction zone.
還元ゾーン５は、水平区画６から構成され、その適宜の
位置に、還元剤投入管１２を具備している。The reducing zone 5 is composed of a horizontal section 6, and is provided with a reducing agent inlet pipe 12 at an appropriate position.
融体は弱還元され、粗銅とスラグとに分離し、それぞれ
の注出口を通して回収される。The melt is weakly reduced and separated into blister copper and slag, which are recovered through their respective spouts.
水平区画の下流端には還元による生成ガス、ＣＯ２、Ｃ
Ｏを排出するためのアップテーク１３が設けられる。At the downstream end of the horizontal section, gas produced by reduction, CO2, C
An uptake 13 is provided for discharging O.
設備の少くとも高温に曝される壁面、好ましくは全周壁
面に水冷用の冷却ジャケットが巻装される。従来炉に較
べて高温が発生する為、通常の耐火壁では損傷が激しい
ので、銅水冷構造の採用が必要である。銅水冷構造は、
その内面に融体の凝結層を形成することによりセルフコ
ートを行う。A cooling jacket for water cooling is wrapped around at least the wall surface of the equipment that is exposed to high temperatures, preferably the entire peripheral wall surface. Since higher temperatures are generated than in conventional furnaces, ordinary fireproof walls will be severely damaged, so a copper water-cooled structure must be adopted. Copper water cooling structure
Self-coating is performed by forming a condensed layer of molten material on its inner surface.
第三図は、粗銅製造装置の別の具体例を示す。FIG. 3 shows another specific example of the blister copper manufacturing apparatus.
ここでは、第一具体例の高温ゾーンと還元ゾーンとが別
々の高温酸化炉１４及び還元炉１６として構成され、両
者は、密閉樋１８によって連繋される。Here, the high temperature zone and the reduction zone of the first embodiment are configured as separate high temperature oxidation furnace 14 and reduction furnace 16, and both are connected by a closed gutter 18.
高温酸化炉１４の底部には、高温脱硫酸化された溶融銅
フェライト−溶銅共存融液が堆積する。At the bottom of the high-temperature oxidation furnace 14, a high-temperature desulfated molten copper ferrite-molten copper coexistence melt is deposited.
高温酸化炉の底部に貯った上記融液はｅｉＭ１８へと溢
流する。The melt stored at the bottom of the high temperature oxidation furnace overflows into the eiM18.
その後、該融液は還元炉１６に導入され、その入口で還
元剤その他の添加剤を投入され、その後スラグと溶鋼と
に分相する。Thereafter, the melt is introduced into a reducing furnace 16, and a reducing agent and other additives are added at the entrance thereof, and then the melt is separated into slag and molten steel.
その他の点は、第一具体例と同様であるので説明を省略
する。The other points are the same as the first specific example, so the explanation will be omitted.
発明の効果
本発明を使用しての直接銅製錬方法により次の効果が得
られる：
（１） マットは関与しない。硫黄を精鉱の酸化の段
階でほぼ完全に除去してしまうので、このあと硫黄の挙
動を考慮する必要がなくなる。Ｐ、Ｓ、転炉が不要とな
り、メタリック銅が直接連続的に１ｑられる。Effects of the Invention The direct copper smelting method using the present invention provides the following effects: (1) No matte is involved. Since sulfur is almost completely removed during the oxidation of the concentrate, there is no need to consider the behavior of sulfur after this point. P, S, converter is no longer required, and 1q of metallic copper can be produced directly and continuously.
（２＋８０２ガスの補集が集約化される。(Collection of 2+802 gases is consolidated.
（３） プロセスの簡易化により労力が削減しうる。(3) Labor can be reduced by simplifying the process.
（４） 現状の溶錬温度をはるかに超えた高い温度で
あるため、反応速度は飛躍的に増大する。これは、設備
の縮小、生産性の向上に大いに寄与する。(4) Since the temperature is much higher than the current smelting temperature, the reaction rate increases dramatically. This greatly contributes to downsizing equipment and improving productivity.
（５）砒素、アンチモン、ビスマス等不純物の揮発除去
が精鉱の超高温酸化時に効果的にもたらされる。(5) Impurities such as arsenic, antimony, and bismuth can be effectively removed by volatilization during ultra-high temperature oxidation of concentrate.
（６）金、銀等貴金属は鋼中に含まれ、電解工程で回収
しうる。(6) Precious metals such as gold and silver are contained in steel and can be recovered in the electrolytic process.
本発明は、上記方法を効率的に実施たらしめる点で意義
あるものである。The present invention is significant in that it allows the above method to be carried out efficiently.
実施例
第二図の装置を模擬した簡略小型プラントにおいて直接
銅製錬方法を模擬試験した。EXAMPLE A direct copper smelting method was tested in a simple small plant simulating the apparatus shown in Figure 2.
Ｃｕ：２８％、Ｆｅ：２５％、Ｓ：２８％、ＳｉＯ２：
８％を含む銅精鉱に対して４００℃の温度にある６０％
酸素濃度の酸素富化空気を３７Ｎｍ３／分の割合で接触
して１７００℃に至る高温燃焼生成物を生ぜしめた。副
生じた排ガスは４７％Ｓ○２濃度のものであった。生成
物に適量の炭素粉を加えることにより、約９８％銅分の
粗銅とＦｅ４０％そして８１０２３５％を含むスラグと
の分相体がえられた。Cu: 28%, Fe: 25%, S: 28%, SiO2:
60% at a temperature of 400℃ for copper concentrate containing 8%
Oxygen-enriched air was contacted at a rate of 37 Nm3/min to produce high temperature combustion products up to 1700°C. The by-product exhaust gas had a concentration of 47% S○2. By adding an appropriate amount of carbon powder to the product, a phase separated product of blister copper with a copper content of about 98% and slag containing 40% Fe and 810235% was obtained.
回収した粗銅に酸素を吹込んで、Ｆｅ分を除去づること
が出来た。その後炭素粉を添加することにより脱酸精製
銅が得られた。By blowing oxygen into the recovered blister copper, we were able to remove the Fe content. Thereafter, deoxidized purified copper was obtained by adding carbon powder.
第一図は本発明と係る直接ｔ！４製錬のフローシートで
あり、第二及び三図は粗ｍ製１装置の具体例を示す。
１：粗銅製錬装置
３：高温酸化ゾーン
４：シャフト状区画
５：還元ゾーン
６：水平区画
７：排出管
９：隔壁
１２：還元剤投入管
１３ニアツブテーク
１４：高温酸化炉
１６：還元炉
１８：樋
第−図
第二図Figure 1 shows the direct t! Fig. 4 is a flow sheet for smelting, and Figures 2 and 3 show specific examples of crude smelting equipment. 1: Blister smelting equipment 3: High temperature oxidation zone 4: Shaft-shaped section 5: Reduction zone 6: Horizontal section 7: Discharge pipe 9: Partition wall 12: Reducing agent input pipe 13 Near tube take 14: High temperature oxidation furnace 16: Reduction furnace 18: Gutter - Figure 2
Claims (1)
００℃の高温で酸化反応せしめる高温酸化ゾーンと、生
成する融体を還元してスラグと粗銅とを生成する還元ゾ
ーンとを具備し、少くとも高温域に水冷銅壁を備える粗
銅の製錬装置。 ２）高温酸化ゾーンと還元ゾーンとが単一装置のシャフ
ト状区画と水平区画として間に隔壁を介在して併設され
る特許請求の範囲第１項記載の装置。 ３）高温酸化ゾーンと還元ゾーンとが高温酸化炉及び還
元炉として別々に設置され、両者が気密樋を介在して連
繋される特許請求の範囲第１項記載の装置。 ４）高温酸化ゾーンの底部に樋と通じる水冷銅製受皿が
配置される特許請求の範囲第３項記載の装置。[Claims] 1) Copper concentrate and oxygen are brought into sufficient contact to produce a
A blister copper smelting device comprising a high-temperature oxidation zone that causes an oxidation reaction at a high temperature of 00°C, and a reduction zone that reduces the generated melt to produce slag and blister copper, and is equipped with a water-cooled copper wall at least in the high-temperature region. . 2) The apparatus according to claim 1, wherein the high-temperature oxidation zone and the reduction zone are co-located as a shaft-like section and a horizontal section of a single apparatus with a partition between them. 3) The apparatus according to claim 1, wherein the high-temperature oxidation zone and the reduction zone are installed separately as a high-temperature oxidation furnace and a reduction furnace, and are connected to each other via an airtight gutter. 4) The apparatus of claim 3, wherein a water-cooled copper saucer is placed at the bottom of the high temperature oxidation zone in communication with the gutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29495786A JPS63149339A (en) | 1986-12-12 | 1986-12-12 | Device for refining crude copper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29495786A JPS63149339A (en) | 1986-12-12 | 1986-12-12 | Device for refining crude copper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63149339A true JPS63149339A (en) | 1988-06-22 |
Family
ID=17814480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29495786A Pending JPS63149339A (en) | 1986-12-12 | 1986-12-12 | Device for refining crude copper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63149339A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002544391A (en) * | 1999-05-14 | 2002-12-24 | オウトクンプ オサケイティオ ユルキネン | Method for reducing nonferrous metal components of slag generated during production of nonferrous metals in floating blast furnace |
| ES2387147A1 (en) * | 2012-07-25 | 2012-09-14 | La Farga Lacambra Sa | Installation for the casting of a copper metal casting or similar (Machine-translation by Google Translate, not legally binding) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5074519A (en) * | 1973-11-05 | 1975-06-19 | ||
| JPS60218435A (en) * | 1984-04-13 | 1985-11-01 | Nippon Mining Co Ltd | Continuous smelting method and furnace |
-
1986
- 1986-12-12 JP JP29495786A patent/JPS63149339A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5074519A (en) * | 1973-11-05 | 1975-06-19 | ||
| JPS60218435A (en) * | 1984-04-13 | 1985-11-01 | Nippon Mining Co Ltd | Continuous smelting method and furnace |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002544391A (en) * | 1999-05-14 | 2002-12-24 | オウトクンプ オサケイティオ ユルキネン | Method for reducing nonferrous metal components of slag generated during production of nonferrous metals in floating blast furnace |
| JP4811812B2 (en) * | 1999-05-14 | 2011-11-09 | オウトテック オサケイティオ ユルキネン | Method for reducing non-ferrous metal components of slag produced during production of non-ferrous metals in a floating blast furnace |
| ES2387147A1 (en) * | 2012-07-25 | 2012-09-14 | La Farga Lacambra Sa | Installation for the casting of a copper metal casting or similar (Machine-translation by Google Translate, not legally binding) |
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