JPH08193229A - Apparatus for reduction recovering copper from molten slag of copper smelting - Google Patents
Apparatus for reduction recovering copper from molten slag of copper smeltingInfo
- Publication number
- JPH08193229A JPH08193229A JP2086695A JP2086695A JPH08193229A JP H08193229 A JPH08193229 A JP H08193229A JP 2086695 A JP2086695 A JP 2086695A JP 2086695 A JP2086695 A JP 2086695A JP H08193229 A JPH08193229 A JP H08193229A
- Authority
- JP
- Japan
- Prior art keywords
- copper
- molten slag
- slag
- iron
- storage 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.)
- Withdrawn
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)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は銅製錬において生じる溶
融スラグから銅を還元回収する装置に関し、特に、連続
製銅工程で生成するカルシウムフェライトスラグ中の酸
化銅を高温溶融状態で連続的に還元し粗銅として回収す
るのに好適な装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for reducing and recovering copper from molten slag produced in copper smelting, and particularly to continuously reducing copper oxide in calcium ferrite slag produced in a continuous copper-making step in a high temperature molten state. The present invention relates to an apparatus suitable for recovering crude copper.
【０００２】[0002]
【従来技術】一般に、銅製錬において硫化銅精鉱を溶錬
する際に、鉱石中に含まれる不純物を酸化してスラグを
生じさせ、これをマット（銅・鉄硫化物）から分離し、
さらにマットに空気を吹き込み、不純物の鉄分を酸化し
てスラグ化し粗銅を得る。ところが、この時にマット中
の銅も一部酸化してスラグ化するため、スラグ中には酸
化鉄と共にかなりの量の酸化銅が含まれている。2. Description of the Related Art Generally, when smelting copper sulfide concentrate in copper smelting, impurities contained in the ore are oxidized to generate slag, which is separated from a mat (copper / iron sulfide),
Further, air is blown into the mat to oxidize the iron content of impurities and slag to obtain blister copper. However, at this time, the copper in the mat is also partially oxidized to form slag, so that the slag contains a considerable amount of copper oxide together with iron oxide.
【０００３】例えば、図５の連続製銅プロセスでは、乾
燥した硫化銅精鉱３０とフラックス３２を酸素富化空気
３３と共に溶錬炉２１の溶湯中に吹込む。ここで原料の
溶解と酸化反応が進行し、マット（銅・鉄硫化物）４０
とスラグ４１が生成する。このマット４０とスラグ４１
を分離炉２２に送り、ここで分離したスラグ４１は常法
に従い水砕し、一方、マット４０は製銅炉２３に送り、
さらに空気を吹き込んでマット４０中の硫黄と鉄分を酸
化し、純度９８．５％以上の粗銅３１を得る。ところが
上記製銅炉２３における酸化の際、空気による酸化は１
０-5気圧程度の平衡酸素分圧を確保する必要があり、こ
の酸素分圧下ではマット中の銅も一部酸化してスラグ中
に取り込まれるのは避けられない。一般に、製銅炉２３
で排出されるスラグ４２（カルシウムフェライトスラ
グ）には２０重量％程度の酸化銅が存在する。For example, in the continuous copper-making process shown in FIG. 5, the dried copper sulfide concentrate 30 and the flux 32 are blown into the molten metal of the smelting furnace 21 together with the oxygen-enriched air 33. Here, the dissolution of the raw materials and the oxidation reaction proceed, and the mat (copper / iron sulfide) 40
And the slag 41 is generated. This mat 40 and slag 41
Is sent to the separation furnace 22, and the slag 41 separated here is granulated according to a conventional method, while the mat 40 is sent to the copper-making furnace 23,
Further, air is blown in to oxidize the sulfur and iron content in the mat 40 to obtain crude copper 31 having a purity of 98.5% or more. However, during the oxidation in the copper making furnace 23, the oxidation by air is 1
0 it is necessary to ensure the equilibrium oxygen partial pressure of about -5 atm, is inevitably incorporated in the slag by oxidizing part also copper in the mat in the oxygen partial pressure. Generally, a copper-making furnace 23
About 20% by weight of copper oxide is present in the slag 42 (calcium ferrite slag) discharged at.
【０００４】[0004]
【発明の解決課題】このように、銅製錬において生じる
スラグには酸化鉄と共にかなりの量の酸化銅が含まれて
いるため、通常、銅製錬プロセスにはスラグ中の酸化銅
を還元回収する工程が付設されているが、工程が繁雑で
あるなどの問題を有している。例えば、上記連続製銅プ
ロセスでは、製銅炉で生じたスラグから銅成分を回収す
るために、スラグを水砕し、乾燥後、溶錬炉に回送して
いるが、製錬工程が繁雑になり、またエネルギーの損失
を余儀なくされている。因みに、水砕スラグから銅を回
収する方法としては浮選処理や酸浸出、溶媒抽出も考え
られるが、現状の処理方法よりも工程が複雑になり、実
用に適さない。As described above, since the slag generated in copper smelting contains a considerable amount of copper oxide together with iron oxide, the copper smelting process usually involves a step of reducing and recovering copper oxide in the slag. Is attached, but it has a problem that the process is complicated. For example, in the above continuous copper production process, in order to recover the copper component from the slag generated in the copper production furnace, the slag is granulated, dried and then sent to the smelting furnace, but the smelting process is complicated. And is also forced to lose energy. Incidentally, as a method for recovering copper from the water granulated slag, a flotation treatment, acid leaching, and solvent extraction can be considered, but the process is more complicated than the current treatment method and is not suitable for practical use.
【０００５】本発明は、従来の銅製錬における上記課題
を解決した還元回収装置を提供することを目的とし、ス
ラグを水砕せずに溶融状態のまま銅成分を連続的に還元
回収でき、しかも溶錬工程に回送する必要がなく、従っ
て、エネルギーの損失と工程の繁雑さを招かない還元回
収装置を提供するものである。An object of the present invention is to provide a reduction / recovery apparatus which solves the above-mentioned problems in conventional copper smelting, and can continuously reduce and recover a copper component in a molten state without granulating slag. It is an object of the present invention to provide a reduction and recovery device that does not need to be sent to the smelting process and therefore does not cause energy loss and process complexity.
【０００６】[0006]
【課題の解決手段】すなわち、本発明によれば以下の構
成を有する還元回収装置が提供される。 （１）銅製錬の溶融スラグから銅を還元回収する装置で
あって、該溶融スラグを溜める貯槽と、該貯槽中の溶融
スラグに接触するように設けられた金属鉄接触部とを有
し、上記貯槽には溶融スラグの導入口と排出口および還
元された金属銅の回収口が設けられ、さらに上記金属鉄
接触部が着脱自在に形成されていることを特徴とする装
置。 （２）金属鉄が溶融スラグ中に浸漬するよう貯槽上方に
上下動自在に吊下されている上記(1) の装置。 （３）金属鉄を溶融スラグ中で回動する手段を有する上
記(2) の装置。 （４）金属鉄接触部が平板状の鋼板からなり、該鋼板に
よって溶融スラグを導入口から排出口に案内する流路が
形成されている上記(1) の装置。That is, according to the present invention, there is provided a reduction and recovery apparatus having the following configuration. (1) A device for reducing and recovering copper from molten slag of copper smelting, comprising a storage tank for storing the molten slag, and a metal iron contact portion provided so as to contact the molten slag in the storage tank, An apparatus characterized in that the storage tank is provided with an inlet and an outlet for molten slag and an outlet for recovering reduced metallic copper, and the metallic iron contact portion is detachably formed. (2) The device according to (1) above, in which metallic iron is suspended vertically above the storage tank so as to be immersed in the molten slag. (3) The device according to (2) above, which has means for rotating metallic iron in the molten slag. (4) The apparatus according to (1) above, wherein the metal iron contact portion is made of a flat steel plate, and the steel plate forms a flow path for guiding the molten slag from the inlet to the outlet.
【０００７】[0007]
【具体的な説明】本発明の装置は、銅製錬において生じ
た溶融スラグを溜める貯槽と、該貯槽中の溶融スラグに
接触するように設けられた金属鉄接触部とを有する。上
記貯槽には溶融スラグの導入口と排出口および還元され
た金属銅を回収するための回収口が設けられている。一
例として、溶融スラグの導入口を貯槽上部の側壁に設
け、その向かい側のやや下側の位置にスラグが溢流する
排出口を設ける。また、貯槽底部の一端を側方に延設し
て金属銅の回収口を形成する。金属銅回収口はこのよう
な湯溜りを形成するものに限らず、貯槽底部に金属銅回
収用の開口部を設け、該開口部を適宜開閉して金属銅を
回収しても良い。なお、これらの連通口および開口部に
は溶融状態の金属銅が冷却凝固しないように加熱手段な
どを設けることが好ましい。[Detailed Description] The apparatus of the present invention has a storage tank for storing molten slag generated in copper smelting, and a metal iron contact portion provided so as to contact the molten slag in the storage tank. The storage tank is provided with an inlet and an outlet for the molten slag and a recovery port for recovering the reduced metallic copper. As an example, an inlet for the molten slag is provided in the side wall of the upper part of the storage tank, and an outlet for the slag to overflow is provided at a position slightly opposite to the inlet. Also, one end of the bottom of the storage tank is extended laterally to form a recovery port for metallic copper. The metallic copper recovery port is not limited to one that forms such a pool, and an opening for recovering metallic copper may be provided at the bottom of the storage tank, and the metallic copper may be recovered by appropriately opening and closing the opening. It should be noted that it is preferable to provide heating means or the like at these communication ports and openings so that the molten metal copper does not cool and solidify.
【０００８】上記金属鉄接触部は貯槽に導入した溶融ス
ラグを金属鉄に接触させる部分であり、溶融スラグを金
属鉄に接触させることにより金属鉄は酸化されて溶融ス
ラグ中に取込まれ、鉄より貴な銅は金属銅に還元され
る。この接触により金属鉄は酸化鉄となりスラグ中に取
り込まれて消耗するので、金属鉄は交換できるように着
脱自在に設けられる。なお、金属鉄との接触により酸化
銅は還元されて金属銅として貯槽底部に溜まるが、金属
鉄接触部は底部に溜まった金属銅と接触しないように設
けられる。金属鉄が還元した金属銅と接触すると銅と鉄
の合金が生成するので好ましくない。The metallic iron contact portion is a portion for bringing the molten slag introduced into the storage tank into contact with the metallic iron. By bringing the molten slag into contact with the metallic iron, the metallic iron is oxidized and taken into the molten slag. Noble copper is reduced to metallic copper. By this contact, the metallic iron becomes iron oxide and is taken into the slag and consumed, so that the metallic iron is detachably provided so that it can be replaced. Although copper oxide is reduced by contact with metallic iron and is accumulated as metallic copper at the bottom of the storage tank, the metallic iron contact portion is provided so as not to come into contact with metallic copper accumulated at the bottom. Contact with metallic copper reduced by metallic iron forms an alloy of copper and iron, which is not preferable.
【０００９】金属鉄を貯槽上部から吊下する場合には、
これを着脱自在に設けると共に上下動自在に設けると良
い。金属鉄を上下動自在に設けることにより、その取換
えが容易に行なえるうえ溶融スラグへの浸漬深さを調整
することもできる。上下動自在な金属鉄をさらに回動自
在に設けることにより、溶融スラグを金属鉄によって攪
拌し、その接触効率を高めると共に排出口に向かって攪
拌することにより溶融スラグの流れを制御することがで
きる。When suspending metallic iron from the upper part of the storage tank,
It is advisable to provide this so as to be detachable and to be vertically movable. By providing the metallic iron so that it can move up and down, it is possible to easily replace it and also to adjust the immersion depth in the molten slag. By providing a vertically movable metallic iron, the molten slag can be stirred by the metallic iron, the contact efficiency can be improved, and the flow of the molten slag can be controlled by stirring toward the discharge port. .
【００１０】金属鉄の形状は、着脱自在に設けられるも
のであれば特に制限はなく、例えば塊状、棒状、さらに
は籠状や平板状など様々な形状を採り得る。金属棒を用
いる場合には、これを複数個設けて接触面積を高めるこ
とが好ましい。また耐久性のある籠状の容器に鉄塊ない
し鉄片を装入して使用しても良い。この場合には金属鉄
を成形加工せずに使用できる利点を有し、廃棄物の鉄ス
クラップを利用することができる。また鉄板を用いて貯
槽内に溶融スラグの流路を形成し、溶融スラグとの接触
と同時に溶融スラグの流れを制御するするようにしても
良い。The shape of metallic iron is not particularly limited as long as it is detachably provided, and various shapes such as a lump shape, a rod shape, a basket shape, and a flat plate shape can be adopted. When using metal rods, it is preferable to provide a plurality of metal rods to increase the contact area. Further, an iron ingot or an iron piece may be charged and used in a durable basket-like container. In this case, there is an advantage that metallic iron can be used without molding, and waste iron scrap can be used. Further, a flow path of the molten slag may be formed in the storage tank by using an iron plate, and the flow of the molten slag may be controlled simultaneously with the contact with the molten slag.
【００１１】上記金属鉄の種類としては、純度の高い鋼
材などの鉄材のほかに銅を含有するものでも良く、また
銅より卑な金属を含有していても良い。具体的には、鉄
スクラップや家電製品、自動車スクラップ等の銅含有鉄
スクラップを適当な大きさに破砕して、あるいは適当な
形状に成型して使用することが可能であり、銅含有鉄ス
クラップを使用した場合には溶融スラグ中の銅だけでな
く、該スクラップ中の銅の回収も同時に行なうことがで
きる。さらに貴金属を含有するものは銅と同時に還元回
収した後に精錬工程において分離、回収することができ
る。As the kind of the metallic iron, in addition to an iron material such as a high-purity steel material, copper may be contained, or a metal baser than copper may be contained. Specifically, it is possible to crush copper-containing iron scraps such as iron scraps, home electric appliances, and automobile scraps to an appropriate size, or to mold them into an appropriate shape before use. When used, not only copper in the molten slag but also copper in the scrap can be recovered at the same time. Further, those containing a noble metal can be separated and recovered in the refining process after being reduced and recovered simultaneously with copper.
【００１２】金属鉄との接触により還元された金属銅は
貯槽底部に溜り、該底部に設けた回収口を通じて回収さ
れる。回収された金属銅は製銅炉で得られる粗銅と共に
精製工程へ送ることができる。The metallic copper reduced by contact with metallic iron accumulates at the bottom of the storage tank and is recovered through the recovery port provided at the bottom. The recovered metallic copper can be sent to the refining step together with the crude copper obtained in the copper-making furnace.
【００１３】上記構成からなる本発明の装置によれば溶
融スラグ中の銅分の約８０％以上を回収することができ
る。また本発明の装置は一般の銅製錬において広く用い
ることができ、さらに連続処理が可能であるので、連続
製銅工程に使用することにより一層効率的な製銅処理を
行なうことができる。According to the apparatus of the present invention having the above structure, about 80% or more of the copper content in the molten slag can be recovered. Further, since the apparatus of the present invention can be widely used in general copper smelting and can be continuously treated, more efficient copper-making treatment can be performed by using it in the continuous copper-making process.
【００１４】[0014]
【実施例】以下、本発明の装置を図面に示す実施例を参
照して具体的に説明する。図１は本発明に係る装置の一
例を示す概略断面図である。同図において、本発明の装
置１０は溶融スラグ４２を溜める貯槽１５と金属鉄接触
部１６とを有し、貯槽上部の側壁には溶融スラグ４２を
導入するための導入口１１、その向かい側のやや下側の
位置には溶融スラグ４２を溢流排出させるための排出口
１４が設けられており、また貯槽底部はその一端１３が
側方に延設されて湯溜り１９を形成し、その上部に回収
口が形成されている。また金属鉄接触部１６は貯槽１５
中の溶融スラグ４２に接触するように設けられた金属鉄
１７を備え、該金属鉄１７は上下動自在な吊下用部材１
８に着脱自在に装着されている。金属鉄との接触により
スラグ中の銅が還元されるのに伴い、金属鉄が消耗する
ので、吊下用部材１８を上昇させ金属鉄１７を引き上げ
て交換する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The apparatus of the present invention will be specifically described below with reference to the embodiments shown in the drawings. FIG. 1 is a schematic sectional view showing an example of an apparatus according to the present invention. In the figure, the apparatus 10 of the present invention has a storage tank 15 for storing the molten slag 42 and a metal iron contact portion 16, and an inlet 11 for introducing the molten slag 42 on the side wall of the upper portion of the storage tank, and a little on the opposite side thereof. A discharge port 14 for overflowing and discharging the molten slag 42 is provided at a lower position, and one end 13 of the bottom of the storage tank is laterally extended to form a basin 19 and an upper part thereof. A recovery port is formed. Further, the metal iron contact portion 16 is a storage tank 15
The metallic iron 17 is provided so as to come into contact with the molten slag 42 therein, and the metallic iron 17 is vertically movable.
It is detachably attached to 8. As the copper in the slag is reduced by the contact with the metallic iron, the metallic iron is consumed. Therefore, the hanging member 18 is raised and the metallic iron 17 is pulled up and replaced.
【００１５】上記金属鉄接触部１６は、図２に示すよう
に、複数の上下動かつ回動自在な吊下用部材１８に金属
鉄１７を着脱自在に取り付け、溶融スラグ中で該金属鉄
１７を回動自在に設けても良い。また図３は、金属鉄接
触部１６として耐久性のある籠状の容器２０に鉄塊ない
し鉄片２１を装入して用いた例であり、上下動自在な吊
下用部材１８に装着して溶融スラグ４２に浸漬される。
図４に示す態様は、上記金属鉄接触部１６として、複数
の鉄板１９を用い、スラグ導入口１１から排出口１４に
向かってスラグの流路を形成した例であり、スラグ導入
口１１から導入された溶融スラグ４２は金属板１９によ
って形成された流路を通過する間に金属鉄と接触し、ス
ラグ中の銅分が還元される。流路の幅および長さなどは
適宜設定することができる。As shown in FIG. 2, the metallic iron contact portion 16 has the metallic iron 17 removably attached to a plurality of vertically movable and rotatable hanging members 18, and the metallic iron 17 is placed in the molten slag. May be rotatably provided. Further, FIG. 3 shows an example in which an iron ingot or an iron piece 21 is loaded into a durable basket-shaped container 20 as the metal iron contact portion 16 and used, and is attached to a vertically movable hanging member 18. It is immersed in the molten slag 42.
The embodiment shown in FIG. 4 is an example in which a plurality of iron plates 19 are used as the metallic iron contact portion 16 and a flow path of slag is formed from the slag introduction port 11 toward the discharge port 14, and is introduced from the slag introduction port 11. The molten slag 42 thus formed comes into contact with metallic iron while passing through the flow path formed by the metal plate 19, and the copper content in the slag is reduced. The width and length of the flow channel can be set appropriately.
【００１６】図１に示すように、溶融スラグ４２は、製
銅炉（図示せず）からスラグ導入口１１を介して貯槽１
５内に導入される。貯槽１５において溶融スラグ４２は
上記金属鉄１７に接触し酸化されてスラグ中に取込ま
れ、一方、スラグ中の銅分は還元されて金属銅１２とな
り溶融スラグ４２との比重差により貯槽底部に溜まる。
貯槽底部に溜まった金属銅１２は、貯槽底部の側方の回
収口（湯溜り）１９からサイフォンなどを利用して回収
される。なお、銅金属１２の回収はサイフォンに限ら
ず、例えば貯槽底部に傾斜を設け、その最深部に設けた
開閉自在の銅回収口（図示せず）から回収しても良い。As shown in FIG. 1, the molten slag 42 is stored in the storage tank 1 through a slag inlet 11 from a copper making furnace (not shown).
Introduced in 5. In the storage tank 15, the molten slag 42 comes into contact with the metallic iron 17 and is oxidized and taken into the slag. On the other hand, the copper content in the slag is reduced to metallic copper 12 and is transferred to the bottom of the storage tank due to the difference in specific gravity from the molten slag 42. Collect.
The metal copper 12 accumulated at the bottom of the storage tank is recovered from a recovery port (hot water pool) 19 on the side of the bottom of the storage tank using a siphon or the like. Note that the collection of the copper metal 12 is not limited to the siphon, and for example, the bottom of the storage tank may be provided with an inclination, and the copper metal 12 may be recovered from an openable / closable copper recovery port (not shown) provided at the deepest part thereof.
【００１７】以下に本発明に係る装置の使用例を示す。
図１に示す装置を用い、鋳鋼製の鉄棒を150rpmの回転速
度で撹拌しながら1240℃の溶融スラグ中（1000ｇ）に浸
漬した。なお、溶融スラグは表１に示す組成からなるカ
ルシウムフェライトスラグである。スラグ浸漬５分経過
後に上記鉄棒を溶融スラグから引き抜いたところ、鉄棒
の浸漬部分は先端に向かって先細りの状態に消耗してお
り、また容器底部には還元された金属銅が９３ｇ溜まっ
ており、回収後その純度を調べたところ98.7重量％であ
った。この結果、溶融スラグの組成は表１に示すように
還元処理前と処理後において銅分が大幅に減少してお
り、スラグ中の銅分の約８０％が回収された。An example of using the device according to the present invention will be shown below.
Using the apparatus shown in FIG. 1, a cast steel iron bar was immersed in molten slag (1000 g) at 1240 ° C. with stirring at a rotation speed of 150 rpm. The molten slag is calcium ferrite slag having the composition shown in Table 1. When the iron bar was pulled out from the molten slag after 5 minutes from the slag immersion, the immersed part of the iron bar was consumed in a tapered state toward the tip, and 93 g of reduced metallic copper was accumulated at the bottom of the container. When the purity was examined after the collection, it was 98.7% by weight. As a result, in the composition of the molten slag, the copper content was greatly reduced before and after the reduction treatment as shown in Table 1, and about 80% of the copper content in the slag was recovered.
【００１８】[0018]
【表１】 Ｃｕ2 Ｏ FeO+Fe2 O3 ＣａＯ ＭｇＯ 合計 導入前 １３．１ ６８．４ １７．７ ０．３ ９９．２ 排出後 ２．１ ７９．１ １６．９ ０．９ ９９．０ （重量％）Table 1 Cu 2 O FeO + Fe 2 O 3 CaO MgO Before introduction 13.1 68.4 17.7 0.3 99.2 After discharge 2.1 79.1 16.9 0.9 99.0 (weight%)
【００１９】[0019]
【発明の効果】本発明装置によれば、銅製錬において生
じる溶融スラグから銅を効率よく、かつ簡単に還元して
回収することができ、回収効率も高い。さらに従来のよ
うな溶融スラグを水砕凝固して最初の溶錬工程に回送す
る必要がなく、従って回収エネルギーの無駄を省くこと
ができ、しかも製錬工程を繁雑にすることもない。ま
た、本発明装置で使用する金属鉄は銅や貴金属など他の
金属を含有していても良く、例えば銅金属を含有してい
る場合には同時にその含有銅を回収でき、貴金属を含ん
でいる場合には銅と同時に回収したのち精製工程におい
て分離し、回収することができる。According to the apparatus of the present invention, copper can be efficiently and easily reduced and recovered from the molten slag generated in copper smelting, and the recovery efficiency is high. Further, it is not necessary to granulate and solidify the molten slag as in the conventional case and send it to the first smelting step, so that waste of recovered energy can be saved and the smelting step is not complicated. Further, the metallic iron used in the device of the present invention may contain other metals such as copper and noble metal. For example, when copper metal is contained, the contained copper can be recovered at the same time and contains noble metal. In some cases, it can be recovered at the same time as copper and then separated and recovered in the refining step.
【図１】 本発明装置の具体例を示す概略断面図。FIG. 1 is a schematic cross-sectional view showing a specific example of the device of the present invention.
【図２】 本発明装置の金属鉄接触部の他の例を示す概
略図。FIG. 2 is a schematic view showing another example of the metallic iron contact portion of the device of the present invention.
【図３】 籠状をした金属鉄接触部を示す斜視図。FIG. 3 is a perspective view showing a cage-shaped metal iron contact portion.
【図４】 流路を形成した金属鉄接触部を示す概略断面
図。FIG. 4 is a schematic cross-sectional view showing a metal iron contact portion in which a channel is formed.
【図５】 連続製銅の製銅工程図。FIG. 5 is a copper production process diagram of continuous copper production.
１０…本発明装置、 １１…スラグ導入口、 １２…金
属銅、 １８…吊下用部材、 １９…金属銅回収口であ
る。10 ... Device of the present invention, 11 ... Slag introduction port, 12 ... Metallic copper, 18 ... Hanging member, 19 ... Metallic copper recovery port.
Claims (4)
る装置であって、該溶融スラグを溜める貯槽と、該貯槽
中の溶融スラグに接触するように設けられた金属鉄接触
部とを有し、上記貯槽には溶融スラグの導入口と排出口
および還元された金属銅の回収口が設けられ、さらに上
記金属鉄接触部が着脱自在に形成されていることを特徴
とする装置。1. An apparatus for reducing and recovering copper from molten slag of copper smelting, comprising a storage tank for storing the molten slag and a metallic iron contact portion provided so as to contact the molten slag in the storage tank. The apparatus is characterized in that the storage tank is provided with an inlet and an outlet for molten slag, and an inlet for recovering reduced metallic copper, and further the metallic iron contact portion is detachably formed.
槽上方に上下動自在に吊下されている請求項１の装置。2. The apparatus according to claim 1, wherein the metallic iron is suspended vertically above the storage tank so as to be immersed in the molten slag.
有する請求項２の装置。3. The apparatus of claim 2 including means for rotating the metallic iron in the molten slag.
該鋼板によって溶融スラグを導入口から排出口に案内す
る流路が形成されている請求項１の装置。4. The metal iron contact portion is made of a flat steel plate,
The apparatus according to claim 1, wherein the steel sheet forms a flow path for guiding the molten slag from the inlet to the outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2086695A JPH08193229A (en) | 1995-01-17 | 1995-01-17 | Apparatus for reduction recovering copper from molten slag of copper smelting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2086695A JPH08193229A (en) | 1995-01-17 | 1995-01-17 | Apparatus for reduction recovering copper from molten slag of copper smelting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08193229A true JPH08193229A (en) | 1996-07-30 |
Family
ID=12039081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2086695A Withdrawn JPH08193229A (en) | 1995-01-17 | 1995-01-17 | Apparatus for reduction recovering copper from molten slag of copper smelting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08193229A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002363659A (en) * | 2001-06-04 | 2002-12-18 | Nippon Mining & Metals Co Ltd | Device for charging material containing iron in copper smelting furnace |
| JP2004002916A (en) * | 2002-05-31 | 2004-01-08 | Nippon Mining & Metals Co Ltd | Method for processing slag in copper refining furnance in refining copper |
| CN102952952A (en) * | 2012-09-26 | 2013-03-06 | 东北大学 | Method for directly restoring and recovering copper iron from smelting copper slag |
| CN105112576A (en) * | 2015-09-17 | 2015-12-02 | 阳谷祥光铜业有限公司 | Modification process and device for hot molten copper slag |
-
1995
- 1995-01-17 JP JP2086695A patent/JPH08193229A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002363659A (en) * | 2001-06-04 | 2002-12-18 | Nippon Mining & Metals Co Ltd | Device for charging material containing iron in copper smelting furnace |
| JP2004002916A (en) * | 2002-05-31 | 2004-01-08 | Nippon Mining & Metals Co Ltd | Method for processing slag in copper refining furnance in refining copper |
| CN102952952A (en) * | 2012-09-26 | 2013-03-06 | 东北大学 | Method for directly restoring and recovering copper iron from smelting copper slag |
| CN102952952B (en) * | 2012-09-26 | 2014-08-20 | 东北大学 | Method for directly restoring and recovering copper iron from smelting copper slag |
| CN105112576A (en) * | 2015-09-17 | 2015-12-02 | 阳谷祥光铜业有限公司 | Modification process and device for hot molten copper slag |
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