JP2005330541A - Melting treatment method for wet particulate iron-containing substance in copper ps converter - Google Patents
Melting treatment method for wet particulate iron-containing substance in copper ps converter Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/0028—Smelting or converting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0002—Preliminary treatment
- C22B15/0004—Preliminary treatment without modification of the copper constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
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- 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
Abstract
Description
本発明は、非鉄金属製錬に用いられる銅PS転炉で、含水微粒子状鉄含有物を溶解処理する技術に関するものである。 The present invention relates to a technique for dissolving a hydrous particulate iron-containing material in a copper PS converter used for non-ferrous metal smelting.
自溶炉に代表される銅製錬炉では、硫化物精鉱を酸化し、硫化銅と硫化鉄を含むカワと、酸化鉄とSiO2を含むカラミとに溶融分離している。カワは、次工程の銅PS転炉で処理される。 In a copper smelting furnace typified by a flash smelting furnace, sulfide concentrate is oxidized and melted and separated into a river containing copper sulfide and iron sulfide and a calami containing iron oxide and SiO 2 . The river is processed in the copper PS converter in the next process.
溶融状態のカワを装入した銅PS転炉では、２段階の処理が行われる。第１段階では、溶剤として珪酸鉱を添加し、羽口から酸素富化空気を吹き込み、硫化鉄を酸化して溶融状態のカラミとして分離排出する段階で造カン期と呼ばれる。第２段階は、さらに酸化を行って、硫化銅を粗銅とする段階で造銅期と呼ばれる。生成した粗銅は、PS転炉から排出され、次工程に送られる。排出後の銅PS転炉には、新たにカワが装入され、上記の操業が繰り返される。 In a copper PS converter charged with a melted river, a two-stage process is performed. In the first stage, silicate ore is added as a solvent, oxygen-enriched air is blown from the tuyere, and the iron sulfide is oxidized and separated and discharged as molten calami. The second stage is called a copper making stage when further oxidation is performed to turn copper sulfide into crude copper. The produced crude copper is discharged from the PS converter and sent to the next process. After discharging, the copper PS converter is newly charged with the river, and the above operation is repeated.
自溶炉工程では、平均粒径５０〜１００μｍ 水分８〜１１mass％の粉状の銅鉱石を水分０.５mass％以下に乾燥後、反応シャフトへ酸素富加空気とともに吹き込まれ、カワとカラミに溶融分離される。
銅製錬において、乾燥後の銅鉱石は、一般的に気流輸送されており、粒径３ｍｍ以上の粒状物は、この気流輸送により運搬できず、処理されていない。
In the flash smelting furnace process, powdered copper ore with an average particle size of 50 to 100 μm and moisture of 8 to 11 mass% is dried to a moisture of 0.5 mass% or less, and then blown into the reaction shaft together with oxygen-enriched air, and melted and separated into river and calami Is done.
In copper smelting, copper ore after drying is generally transported by air flow, and particulate matter having a particle size of 3 mm or more cannot be transported by this air flow transport and is not processed.
次工程の銅PS転炉では、温度約１２００℃の溶融状態のカワを装入し、図１に示すように羽口から酸素富加空気を吹き込み、酸化処理を行う。また、珪酸鉱、レードルスカルなどは、一般的には、粒径３〜５０ｍｍ、水分３mass％以下に調整され、酸素富加空気の吹き込み中に、シュートより、転炉内に装入される。 In the next step, a copper PS converter, a molten metal having a temperature of about 1200 ° C. is charged, and oxygen-enriched air is blown from the tuyere as shown in FIG. Silicate ore, ladle skull and the like are generally adjusted to a particle size of 3 to 50 mm and moisture of 3 mass% or less, and charged into the converter from the chute while blowing oxygen-enriched air.
平均粒径３ｍｍより小さい微粒状物を図１に示す方法で、転炉内に装入すると、ガス流により炉外に吹き飛ばされる割合が多く、ガス道でのダスト堆積、電気集塵機での固着トラブルが発生していた。このため、銅PS転炉では、一般的に、平均粒径３ｍｍより小さい微粒状物は処理されていなかった。
たとえば、粒径１〜１０ｍｍの粒状物が集まった原料は、自溶炉では３ｍｍ以上の粒状物を含むために処理が困難である。一方、PS転炉では３ｍｍより小さい粒状物を含むために処理が困難であり、自溶炉、PS転炉のいずれでも処理されていないのが実情であった。
When a fine particle having an average particle size of less than 3 mm is charged into the converter by the method shown in FIG. 1, there is a large proportion of the gas flow blown out of the furnace, dust accumulation in the gas passage, and sticking troubles in the electric dust collector. Had occurred. For this reason, in the copper PS converter, in general, fine particles smaller than the average particle diameter of 3 mm have not been processed.
For example, a raw material in which particulate matter having a particle diameter of 1 to 10 mm is collected is difficult to process because it contains particulate matter of 3 mm or more in a flash furnace. On the other hand, PS converters are difficult to process because they contain particulates smaller than 3 mm, and the actual situation is that neither PS or PS converters were processed.
また、PS転炉では、平均粒径が３ｍｍ以上であっても水分が、３mass％以上のものを吹錬中に装入すると水蒸気爆発を起こしやすく好ましくない。
なお水分が、３mass％未満であっても平均粒径が３ｍｍ未満であれば同様な爆発現象が起る。
一方、平均粒形が３ｍｍ以上であっても、水分が３mass％以上であると、PS転炉内に装入すると水蒸気爆発が起こりやすい。
Moreover, in a PS converter, even if the average particle size is 3 mm or more, it is not preferable that a water vapor of 3 mass% or more is charged during blowing and a steam explosion is likely to occur.
Even if the moisture is less than 3 mass%, the same explosion phenomenon occurs if the average particle size is less than 3 mm.
On the other hand, even if the average particle shape is 3 mm or more, if the water content is 3 mass% or more, a steam explosion is likely to occur when charged into the PS converter.
近年、一般廃棄物あるいは産業廃棄物の溶融炉が、日本各地で稼動を開始した。特に還元タイプの熔融炉からは、金属鉄、金属銅を主成分とするメタルが発生し、資源回収の観点から、銅製錬での溶融処理が期待されていた。（特開２００２−１８０１４３）
しかし、一般的に、溶融炉から発生するメタルはスラグとともに水砕処理された後、磁力選別される。このため、粒径１〜１０ｍｍの粒状物の割合が多く、銅製錬では、篩別処理を行った場合を除き、自溶炉工程、銅転炉工程ともに処理されていなかった。また、水砕処理のために、含水分が１〜１５mass％と高く、PS転炉処理は非常に困難であった。
However, generally, the metal generated from the melting furnace is subjected to a water granulation process together with slag and then subjected to magnetic selection. For this reason, there are many ratios of a granular material with a particle size of 1-10 mm, and in copper smelting, neither the flash smelting furnace process nor the copper converter process was processed except the case where the sieving process was performed. Moreover, the moisture content was as high as 1 to 15 mass% due to the water granulation treatment, and the PS converter treatment was very difficult.
本発明は、平均粒径１〜１０ｍｍ、水分１〜１５mass％の含水微粒状鉄含有物を、銅PS転炉において、効率的に溶解処理する方法の提供を目的とするものである。 An object of the present invention is to provide a method for efficiently dissolving and treating a hydrous fine iron-containing material having an average particle diameter of 1 to 10 mm and a water content of 1 to 15 mass% in a copper PS converter.
そこで、以下の発明を提案する。
（１）平均粒径１〜１０ｍｍ、水分１〜１５mass％の含水微粒子状鉄含有物を、粒径３〜５０ｍｍの珪酸鉱と１：０.５〜１の割合で混合した混合物を、粗銅排出後の銅のPS転炉に装入し、混合物に対して重量比で５〜１５倍のPS転炉残留物と混合する含水微粒子状鉄含有物の溶解処理方法。
（２）上記（１）記載の銅製錬に於けるPS転炉残留物の温度が、６００〜１１００℃である含水微粒子状鉄含有物の溶解処理方法。
Therefore, the following invention is proposed.
(1) Discharge of crude copper from a mixture of hydrated fine-particle iron-containing material having an average particle size of 1 to 10 mm and moisture of 1 to 15 mass% and a silicate ore having a particle size of 3 to 50 mm in a ratio of 1: 0.5 to 1 A method for dissolving a hydrous fine-particle iron-containing material, which is charged into a later PS converter of copper and mixed with a PS converter residue having a weight ratio of 5 to 15 times that of the mixture.
(2) A method for dissolving water-containing fine-particle iron-containing material in which the temperature of the PS converter residue in copper smelting as described in (1) is 600 to 1100 ° C.
（３）上記（１）〜（２）記載の含水微粒子状鉄含有物が金属鉄、金属銅を合計で１５mass％以上を含む含水微粒子状鉄含有物である上記（１）〜（２）記載の含水微粒子状鉄含有物の溶解処理方法。
（４）上記（１）〜（３）記載の含水微粒子状鉄含有物が、一般廃棄物あるいは、産業廃棄物を溶融処理して得られる微粒状物である上記（１）〜（３）記載の含水微粒子状鉄含有物の溶解処理方法。
(3) The above-mentioned (1) to (2) description, wherein the hydrous fine-particle iron-containing material described in (1) to (2) is a hydrous fine-particle iron-containing material containing 15 mass% or more of metallic iron and metallic copper in total. A method for dissolving a water-containing particulate iron-containing material.
(4) The above-mentioned (1) to (3), wherein the water-containing fine-particle iron-containing material described in (1) to (3) is a fine particulate material obtained by melting general waste or industrial waste. A method for dissolving a water-containing particulate iron-containing material.
本発明は以下の効果を有する。
（１）従来、銅製錬工程で処理することが困難であった 平均粒径１〜１０ｍｍ、水分１〜１５mass％の含水微粒子状鉄含有物を、銅のPS転炉で効率的に溶解処理することが可能となった。
The present invention has the following effects.
(1) Conventionally, it was difficult to treat in the copper smelting process. The water-containing fine-grained iron-containing material having an average particle diameter of 1 to 10 mm and a water content of 1 to 15 mass% is efficiently dissolved and processed in a copper PS converter. It became possible.
（２）一般廃棄物または産業廃棄物の溶融炉から発生した 平均粒径１〜１０ｍｍ 水分１〜１５mass％の含水微粒子状鉄含有物を銅のPS転炉で処理することにより、含有されるCuなどの再資源化を、より低コストで実現できる。 (2) Cu contained by processing water-containing fine-grained iron-containing material having an average particle diameter of 1 to 10 mm and moisture of 1 to 15 mass% generated from a melting furnace for general waste or industrial waste in a copper PS converter Recycling such as can be realized at a lower cost.
以下、本発明の構成を詳しく説明する。
本発明において、対象とする炉は、銅製錬における銅PS転炉である。
本発明の対象処理物は、平均粒径１〜１０ｍｍ、水分１〜１５mass％の含水微粒子状鉄含有物である。
対象処理物の組成は、Fe １〜４０mass％、Cu ０.５〜５０mass％である。
又更に通常のものは、金属鉄、金属銅を合計で１５mass％以上含有する。
該対象処理物を粒径３〜５０ｍｍの珪酸鉱と１：０.５〜１の割合で予め混合する。該処理は、６００〜１１００℃のPS転炉内における水蒸気爆発の防止のためである。経験的に、前記の割合より含水微粒子状鉄含有物が多くなると、水蒸気爆発が起こりやすく、少なくなると、含水微粒子状鉄含有物溶融処理の生産性が低下する。
Hereinafter, the configuration of the present invention will be described in detail.
In the present invention, the target furnace is a copper PS converter in copper smelting.
The target processed product of the present invention is a hydrous fine particle iron-containing material having an average particle diameter of 1 to 10 mm and a water content of 1 to 15 mass%.
The composition of the object treatment object is Fe 1-40 mass%, Cu 0.5-50 mass%.
Furthermore, a normal thing contains 15 mass% or more of metal iron and metal copper in total.
The target object is previously mixed with silicate ore having a particle diameter of 3 to 50 mm at a ratio of 1: 0.5 to 1. The treatment is for preventing a steam explosion in a PS converter at 600 to 1100 ° C. Empirically, when the amount of the water-containing fine particle-like iron-containing material increases from the above ratio, the steam explosion easily occurs.
この混合物を、粗銅排出後の銅PS転炉に装入する。粗銅排出後の銅PS転炉内には、Fe3O4,Cu2Oを主成分とする６００〜１１００℃の半凝固状態の残留物があり、図２に示すように、珪酸鉱と含水微粒子状鉄含有物の混合物と半凝固状態の残留物を、炉を傾転することにより混合する。該目的は、珪酸鉱と含水微粒子状鉄含有物との混合物中の水分の蒸発と、酸素富加空気吹き込み中の含水微粒子状鉄含有物の飛散防止である。経験的に、珪酸鉱と含水微粒子状鉄含有物の混合物と残留物を炉の傾転により混合することにより、飛散を防止できることが見出されている。
６００〜１１００℃の銅のPS転炉残留物は、混合物に対して重量比で５〜１５倍が適当である。５倍より少ないと、水分の蒸発が不十分になりやすく、水蒸気爆発のおそれが増大する。１５倍より大きいと、含水微粒子状物の溶解処理の生産性が低下する。
This mixture is charged into a copper PS converter after discharge of crude copper. In the copper PS converter after the discharge of the crude copper, there is a residue in a semi-solid state at 600 to 1100 ° C. mainly composed of Fe 3 O 4 and Cu 2 O. As shown in FIG. The mixture of particulate iron-containing material and the semi-solidified residue are mixed by tilting the furnace. The purpose is to evaporate water in the mixture of the silicate ore and the hydrous fine particulate iron-containing material, and to prevent the hydrous fine particulate iron-containing material from being scattered during the oxygen-enriched air blowing. Empirically, it has been found that scattering can be prevented by mixing a mixture of silicate ore and hydrous fine iron-containing material and the residue by tilting the furnace.
The suitable PS converter residue of copper at 600 to 1100 ° C. is 5 to 15 times by weight with respect to the mixture. If it is less than 5 times, the evaporation of water tends to be insufficient, and the risk of steam explosion increases. When it is larger than 15 times, the productivity of the water-containing fine particle dissolution treatment is lowered.
残留物の保有熱を利用した水分の蒸発後、溶融状態のカワを装入する。溶剤として珪酸鉱を添加し、羽口から酸素富化空気を吹き込み、硫化鉄を酸化してカラミとして分離する段階である造カン期操業が行われる。この時、PS転炉内は、１２８０〜１３２０℃に達し、含水微粒子状鉄含有物の溶融処理が完了する。
Cuなどの有価物はカワ中に回収され、Fe,SiO2などはカラミ中に移行する。
After evaporating the water using the retained heat of the residue, the molten river is charged. Silicate ore is added as a solvent, oxygen-enriched air is blown from the tuyere, and iron sulfide is oxidized to separate it as calami. At this time, the inside of the PS converter reaches 1280 to 1320 ° C., and the melting treatment of the hydrous fine particulate iron-containing material is completed.
Valuables such as Cu are collected in the river, and Fe, SiO 2, etc. are transferred into the calami.
本発明により、平均粒径１〜１０ｍｍ、水分１〜１５mass％の含水微粒子状鉄含有物を、銅のPS転炉で効率的に溶解処理することが可能となる。含水微粒子状鉄含有物に含まれるCuなどの有価物はPS転炉内で粗銅中に移行し、回収される。 According to the present invention, it becomes possible to efficiently dissolve and dissolve a water-containing fine particle-like iron-containing material having an average particle diameter of 1 to 10 mm and a water content of 1 to 15 mass% in a copper PS converter. Valuables such as Cu contained in the hydrous fine iron-containing material are transferred to the crude copper in the PS converter and recovered.
本実施例は、レンガ内径３.４ｍ胴体長さ１０.７ｍの銅のPS転炉において実施した。 This example was implemented in a copper PS converter with a brick inner diameter of 3.4 m and a fuselage length of 10.7 m.
まず、組成 Cu ２６mass％、Fe ３０mass％、SiO2 ２１mass％を含有し、平均粒径６.３ｍｍ 水分７mass％の 産業廃棄物ガス化溶融炉から発生した含水微粒子状鉄含有物５４ｔと粒径３〜５０ｍｍの珪酸鉱４５ｔをペイローダーにより混合した。 First, a composition containing 26 mass% Cu, 30 mass% Fe, 21 mass% SiO 2 , an average particle size of 6.3 mm, a moisture content of 7 mass%, and a hydrous fine particle-like iron-containing material 54 t generated from an industrial waste gasification melting furnace and a particle size of 3 ˜45 mm of silicate ore 45t was mixed with a pay loader.
Fe3O4,Cu2Oを主成分とする約１０００℃の残留物が約２０ｔ存在するPS転炉内に、珪酸鉱と含水微粒子状鉄含有物の混合物３ｔを装入した。この直後、PS転炉を図２に示すように、傾転角約８０°にしてローリングを５回行い、充分に混合を行った。 A PS converter having about 1000 tons of Fe 3 O 4 and Cu 2 O as main components and about 20 tons was charged with 3 t of a mixture of silicate ore and hydrous fine iron-containing material. Immediately after this, as shown in FIG. 2, the PS converter was rolled at a tilt angle of about 80 ° five times and mixed thoroughly.
その後、Cu６５.３mass％ 約１２００℃のカワを１６２ｔ装入し、羽口より酸素濃度３０.５vol％の送風を平均６５５Nm3/minで吹込み、４２分で送風を完了した。
この一連の操業により、組成 Cu ２６mass％、Fe ３０mass％、SiO2 ２１mass％、平均粒径６.３ｍｍ、 水分７mass％の含水微粒子状鉄含有物
１.６ｔの溶融処理を完了し、水蒸気爆発、送風による飛散などの支障は見られなかった。
（比較例１）
Thereafter, 162 tons of Cu 65.3 mass% of about 1200 ° C. was introduced, and 30.5 vol% of oxygen was blown from the tuyere at an average of 655 Nm 3 / min, and the blowing was completed in 42 minutes.
Through this series of operations, the melting treatment of 1.6 tons of hydrous particulate iron-containing material with a composition of Cu 26 mass%, Fe 30 mass%, SiO 2 21 mass%, average particle size 6.3 mm, and moisture 7 mass% was completed. There were no obstacles such as air scatter.
(Comparative Example 1)
本比較例１は、実施例と同じ、レンガ内径３.４ｍ胴体長さ１０.７ｍの銅PS転炉において実施した。 This Comparative Example 1 was carried out in a copper PS converter having a brick inner diameter of 3.4 m and a fuselage length of 10.7 m, which was the same as the example.
実施例と同じく、組成 Cu ２６mass％、Fe ３０mass％、SiO2 ２１mass％、を同様に含有し、平均粒径６.３ｍｍ、水分７mass％の産業廃棄物ガス化溶融炉から発生した含水微粒子状鉄含有物５４ｔと 粒径３〜５０ｍｍの珪酸鉱４５ｔをペイローダーにより混合した。この混合物３ｔを、図１に示すように、Cu６５.１mass％約１２００℃のカワを１６５ｔ装入し、羽口より酸素濃度３０.５VOl％の送風を平均６４８Nm3/minで吹込みを行っているPS転炉に、シュートにより装入した。 In the same manner as in the examples, the composition containing Cu 26 mass%, Fe 30 mass%, SiO 2 21 mass%, similarly containing hydrous fine particulate iron generated from an industrial waste gasification and melting furnace having an average particle size of 6.3 mm and moisture of 7 mass%. The inclusion 54t and 45t of silicate ore having a particle diameter of 3 to 50 mm were mixed by a pay loader. As shown in FIG. 1, this mixture 3t was charged with 165t of Cu 65.1 mass% about 1200 ° C, and blown with air at an average oxygen concentration of 30.5 Vol% from the tuyere at 648 Nm 3 / min. The PS converter was charged with a chute.
その結果、微粒状物の飛散が確認され、電気集塵機で微粒状物が固着した 径５０〜１５０ｍｍの塊状物が約３０個発生し、電気集塵機での集塵ダスト排出に支障をきたした。 As a result, scattering of fine particles was confirmed, and about 30 lumps with a diameter of 50 to 150 mm with fine particles fixed by the electric dust collector were generated, which hindered dust collection by the electric dust collector.
（比較例２）
本比較例２は、実施例と同じ、レンガ内径３.４ｍ、胴体長さ１０.７ｍの銅PS転炉において実施した。
(Comparative Example 2)
The present comparative example 2 was carried out in the same copper PS converter having a brick inner diameter of 3.4 m and a body length of 10.7 m as in the example.
対象処理物は、組成 Cu ２６mass％、Fe ３０mass％、SiO2 ２１mass％、からなり、平均粒径６.３ｍｍ、水分７mass％の産業廃棄物ガス化溶融炉から発生した含水微粒子状鉄含有物１.５ｔを単独で、Fe3O4,Cu2Oを主成分とする約１０００℃の残留物が約２０ｔ存在するPS転炉内に装入した。
傾転角約８０°にして、ローリングを開始したところ、PS転炉内で水蒸気の小爆発が確認され、好ましい現象ではなかった。
The target processed material is composed of 26 mass% Cu, 30 mass% Fe, 21 mass% SiO 2, 21 wt% SiO 2 mass average particle size 6.3 mm, water content 7 mass% water-containing particulate iron-containing material 1 generated from an industrial waste gasification melting furnace 1 0.5 t alone was charged into a PS converter having about 1000 tons of Fe 3 O 4 , Cu 2 O as main components and about 20 t remaining.
When rolling was started at an inclination angle of about 80 °, a small explosion of water vapor was confirmed in the PS converter, which was not a preferable phenomenon.
Claims (4)
The water-containing fine particle-like iron-containing material according to any one of claims 1 to 3, wherein the water-containing fine particle-like iron-containing material is a fine particle material obtained by melting or treating general waste or industrial waste. Method for dissolving iron-containing material.
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| JP2004150019A JP4112523B2 (en) | 2004-05-20 | 2004-05-20 | Dissolution treatment method of hydrous fine iron-containing material in copper PS converter |
| KR20040112681A KR100642964B1 (en) | 2004-05-20 | 2004-12-27 | Method for smelting treatment of fine granular material containing water and iron in copper ps converter |
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| JP2004150019A JP4112523B2 (en) | 2004-05-20 | 2004-05-20 | Dissolution treatment method of hydrous fine iron-containing material in copper PS converter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831539A (en) * | 2010-05-20 | 2010-09-15 | 牛庆君 | Method for producing artificial rich iron ore from copper smelting waste slag by using new sintering technology |
| CN101831549A (en) * | 2010-05-20 | 2010-09-15 | 牛庆君 | Method for producing artificial rich iron ore from nickel, copper and cobalt smelting waste slag by utilizing new sintering process |
| CN101831555A (en) * | 2010-05-20 | 2010-09-15 | 牛庆君 | Method for producing artificial rich iron ore from nickel smelting waste slag by utilizing new sintering process |
| CN110453089A (en) * | 2019-08-30 | 2019-11-15 | 楚雄滇中有色金属有限责任公司 | A method of it reducing PS converter blister copper and carries slag secretly |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3698044B2 (en) * | 2000-10-04 | 2005-09-21 | 住友金属鉱山株式会社 | Method for smelting copper sulfide concentrate |
| JP3747155B2 (en) * | 2000-12-19 | 2006-02-22 | 日鉱金属株式会社 | How to operate a wrought copper furnace |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831539A (en) * | 2010-05-20 | 2010-09-15 | 牛庆君 | Method for producing artificial rich iron ore from copper smelting waste slag by using new sintering technology |
| CN101831549A (en) * | 2010-05-20 | 2010-09-15 | 牛庆君 | Method for producing artificial rich iron ore from nickel, copper and cobalt smelting waste slag by utilizing new sintering process |
| CN101831555A (en) * | 2010-05-20 | 2010-09-15 | 牛庆君 | Method for producing artificial rich iron ore from nickel smelting waste slag by utilizing new sintering process |
| CN110453089A (en) * | 2019-08-30 | 2019-11-15 | 楚雄滇中有色金属有限责任公司 | A method of it reducing PS converter blister copper and carries slag secretly |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100642964B1 (en) | 2006-11-10 |
| KR20050111524A (en) | 2005-11-25 |
| JP4112523B2 (en) | 2008-07-02 |
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