JP2006509103A - Slag processing method - Google Patents
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- JP2006509103A JP2006509103A JP2004556365A JP2004556365A JP2006509103A JP 2006509103 A JP2006509103 A JP 2006509103A JP 2004556365 A JP2004556365 A JP 2004556365A JP 2004556365 A JP2004556365 A JP 2004556365A JP 2006509103 A JP2006509103 A JP 2006509103A
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- 239000002893 slag Substances 0.000 title claims abstract description 49
- 238000003672 processing method Methods 0.000 title description 2
- 239000010949 copper Substances 0.000 claims abstract description 63
- 229910052802 copper Inorganic materials 0.000 claims abstract description 62
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000000034 method Methods 0.000 claims abstract description 30
- 239000012141 concentrate Substances 0.000 claims abstract description 15
- 239000000725 suspension Substances 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 238000003723 Smelting Methods 0.000 claims abstract description 6
- 238000002386 leaching Methods 0.000 claims description 16
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 14
- 238000001556 precipitation Methods 0.000 claims description 9
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- 230000001580 bacterial effect Effects 0.000 claims description 2
- 238000005868 electrolysis reaction Methods 0.000 claims description 2
- 238000000622 liquid--liquid extraction Methods 0.000 claims description 2
- 238000000638 solvent extraction Methods 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 238000002474 experimental method Methods 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 239000002244 precipitate Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 229910052569 sulfide mineral Inorganic materials 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
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Classifications
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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
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/04—Working-up slag
-
- 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
- C22B15/0054—Slag, slime, speiss, or dross treating
-
- 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
- C22B15/0047—Smelting or converting flash smelting or converting
-
- 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
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
-
- 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
本発明は、製錬溶鉱炉などの懸濁溶鉱炉で、銅を回収するために、精鉱から直接的に加工される粗銅の産出中に形成されるスラグを処理する方法に関するものであり、スラグの少なくとも一部を、少なくとも一段階で浸出する。The present invention relates to a method for treating slag formed during the production of crude copper processed directly from concentrate to recover copper in a suspension blast furnace such as a smelting blast furnace. At least a portion is leached in at least one stage.
Description
本発明は、請求項１の前段に記載されている、粗銅の産出中に形成されるスラグの処理方法に関するものである。 The present invention relates to a method for treating slag formed during the production of crude copper, which is described in the preceding paragraph of claim 1.
製錬溶鉱炉などの懸濁反応炉で、一段階で直接的に硫化精鉱から粗銅を産出することは、特定の境界条件において経済的に賢明である。粗銅の直接産出において最も注意すべき問題の１つは、銅がスラグ状になり、大量のスラグが形成されることである。十分な銅の回収を確保するため、スラグに存在する銅を、スラグ除去工程に関連させて回収しなければならない。多量のスラグの他に、別の問題は、硫化精鉱の燃焼中に形成される大量の熱である。この場合、プロセス空気における濃縮酸素を減らす。このことは、プロセス空気に含まれた窒素の加熱で熱収支のバランスを保つことを意味している。しかしながら、これは大量のプロセスガスを産出するため、また一方で、大きな溶鉱炉の場所と、とりわけ大きなガス処理設備の原因となる。 In a suspension reactor such as a smelting blast furnace, it is economically advisable to produce crude copper from sulfide concentrate directly in one step at certain boundary conditions. One of the most notable issues in the direct production of crude copper is that copper becomes slag and a large amount of slag is formed. In order to ensure sufficient copper recovery, the copper present in the slag must be recovered in connection with the slag removal process. Besides the large amount of slag, another problem is the large amount of heat that is formed during the combustion of sulfide concentrate. In this case, the concentrated oxygen in the process air is reduced. This means that the heat balance is maintained by heating the nitrogen contained in the process air. However, this produces a large amount of process gas and, on the other hand, causes large blast furnace locations and especially large gas processing facilities.
精鉱の銅含有量が十分に高い場合、一般的に少なくとも37% Cuである場合は、ブリスターの産出は直接的に一段階で経済的に実行できる。精鉱の銅の含有量が高いと、精鉱の熱価は一般的に低くなる。銅の含有量が高いと、硫化鉄鉱物の占有率は低い。上述した精鉱の処理では、十分な高濃縮酸素を使用でき、その結果、ガスの量を抑えておくことが可能である。また銅の含有量がより低い精鉱は、その鉄含有量が低ければ粗銅の産出に適し、その際形成されるスラグの量は著しく大量ではない。 If the concentrate has a sufficiently high copper content, generally at least 37% Cu, the production of blisters can be carried out directly and economically in one step. When the copper content of the concentrate is high, the heat value of the concentrate is generally low. When the copper content is high, the occupation ratio of iron sulfide minerals is low. In the above-described concentrate treatment, sufficient highly concentrated oxygen can be used, and as a result, the amount of gas can be suppressed. Also, concentrates with lower copper content are suitable for the production of crude copper if their iron content is low, and the amount of slag formed at that time is not significantly large.
フィンランド特許出願第982818号によると、精鉱に加えて、冷やして粉末にした銅マットも用いた溶鉱炉で粗銅を産出する方法が公知である。そして、産出される粗銅の量に応じて、従来の方法による場合よりも少ない量のスラグが形成される。またスラグの銅の損失も減少する。形成されたスラグをさらに、一段階か、より好ましくは二段階のスラグ除去処理で処理する。二段階のスラグ除去方法は、２つの電気炉を含むか、または１つの電気炉およびスラグ濃縮設備を含んでいる。電気炉の中では、コークスによりスラグが還元され、その結果、スラグ相に結合した貴金属が還元されてスラグ層の下で別の銅相として分離する。スラグ濃縮設備でスラグを処理する場合は、スラグ濃縮物を溶鉱炉へ戻すことが可能である。粗銅は、陽極炉で純化される。 According to Finnish patent application No. 982818, a method of producing crude copper in a blast furnace using not only concentrate but also cooled and powdered copper mat is known. Then, depending on the amount of crude copper produced, a smaller amount of slag is formed than in the conventional method. Also, slag copper loss is reduced. The formed slag is further processed by a one-stage, more preferably two-stage slag removal process. The two-stage slag removal method includes two electric furnaces or one electric furnace and slag concentration equipment. In the electric furnace, slag is reduced by coke, and as a result, the noble metal bonded to the slag phase is reduced and separated as another copper phase under the slag layer. When processing slag with a slag concentration facility, it is possible to return the slag concentrate to the blast furnace. Crude copper is purified in an anode furnace.
スラグを電気炉において一段階で処理してスラグ中の銅の量が経済的に重要でないようにする場合は、ブリスターにおける鉄の含有量はまだ高く、しばしば転換炉でブリスター分離処理が必要となる。１つの方法は、電気炉前処理であり、形成された粗銅が大量ブリスターと共に陽極炉で処理される。しかし、未だたくさんの銅がスラグに残り、経済的な理由のために銅を濃縮技術手段により回収しなければならない。 If the slag is processed in one step in an electric furnace so that the amount of copper in the slag is not economically important, the iron content in the blister is still high and often requires a blister separation process in the converter . One method is an electric furnace pretreatment where the formed crude copper is treated in an anode furnace with a large amount of blisters. However, a lot of copper still remains in the slag, and for economic reasons copper must be recovered by means of concentration technology.
本発明は、精鉱から直接的に粗銅を産出するときに形成されるスラグの新しい処理方法を提示することを目的とする。詳細には、本発明は、総合的に節約を尊重し、より効果的かつより有利な方法で、粗銅の産出中にスラグ状となった銅の回収を実現することを目的とする。 An object of this invention is to show the new processing method of the slag formed when producing | generating crude copper directly from concentrate. In particular, the present invention aims to achieve the recovery of slag-like copper during the production of crude copper in a more effective and more advantageous manner, comprehensively respecting savings.
本発明は、請求項１の特徴段に記載の事項を特徴とする。本発明の他の実施例はその他の請求項の記載事項を特徴とする。 The present invention is characterized by the matters described in the characterizing stage of claim 1. Other embodiments of the invention are characterized by what is stated in the other claims.
本発明による方法には多くの利点がある。本発明の方法によれば、精鉱から直接的に産出される粗銅の産出中に形成されるスラグに含まれている銅を効果的に回収する。本発明の方法によれば、銅の回収が簡単になり、さらに、不純物の管理をより改善することが可能になる。湿式製錬スラグに含まれた銅の回収によって、電気炉還元と比べて、エネルギーの消費量が少なくなる。さらに、乾式精錬回収と比べて、ガスと塵の放出が少なくなる。 The method according to the invention has many advantages. According to the method of the present invention, copper contained in slag formed during the production of crude copper directly produced from concentrate is effectively recovered. According to the method of the present invention, copper recovery can be simplified, and impurity management can be further improved. The recovery of copper contained in the hydrometallurgical slag reduces energy consumption compared to electric furnace reduction. In addition, gas and dust emissions are reduced compared to dry smelting recovery.
次に、添付図面を参照して、本発明をさらに詳細に説明する。 The present invention will now be described in more detail with reference to the accompanying drawings.
図１は、銅を回収するために、製錬溶鉱炉などの懸濁溶鉱炉で産出される粗銅の産出中に形成されるスラグ、すなわちブリスタースラグの本発明による処理手続を示す。この場合、スラグの少なくとも一部は、少なくとも一段階で浸出される。銅精鉱、溶剤および酸素濃縮空気が、例えば製錬溶鉱炉などの懸濁溶鉱炉の溶解工程1に注入される。乾燥した精鉱粒子が、高温の懸濁液の中で酸素濃縮空気と迅速に反応する。この反応中に放出されたエネルギーはこの処理で利用される。一部の硫黄が酸化されて二酸化硫黄となり、鉄が酸化されて酸化鉄となり、こうして溶剤でスラグが形成される。この反応生成物が懸濁溶鉱炉の底に溜り、２つの別々の溶解相、すなわち、粗銅とブリスタースラグを形成する。この処理で形成されたガスは、公知の手法で処理するためにさらに送られる。懸濁溶鉱炉で形成された粗銅は陽極炉処理工程2へと送られ、そこで公知の手法で精製され、陽極銅へ注がれる。
FIG. 1 shows the processing procedure according to the present invention of slag formed during the production of crude copper produced in a suspension blast furnace such as a smelting blast furnace to recover copper, ie blister slag. In this case, at least a part of the slag is leached in at least one stage. Copper concentrate, solvent and oxygen-enriched air are injected into the melting step 1 of a suspension blast furnace such as a smelting blast furnace. Dry concentrate particles react rapidly with oxygen enriched air in a hot suspension. The energy released during this reaction is used in this process. Part of the sulfur is oxidized to sulfur dioxide, iron is oxidized to iron oxide, and slag is formed with the solvent. This reaction product accumulates at the bottom of the suspension blast furnace and forms two separate dissolved phases, namely crude copper and blister slag. The gas formed in this process is further sent for processing in a known manner. The crude copper formed in the suspension blast furnace is sent to the anodic
溶解工程1で形成されたブリスタースラグは、備えられた循環路、例えば樋を通って懸濁溶鉱炉から引き出され、ブリスタースラグに含まれている銅を回収するための処理へとさらに送られる。最初に、ブリスタースラグは、造粒研磨工程3へと運ばれる。粒状にされたブリスタースラグは、表面の反応性を高めるために、例えば湿式研磨で、規定の粒度になるまですりつぶされる。浸出工程4では、ブリスタースラグに含まれる金属を浸出する。以下に示す実施例では、浸出工程4を硫酸を用いた酸化状況で行ない、その結果、硫化銅を形成する。硫酸を加える量は、1キロのスラグに対して500〜900グラムが好ましい。浸出は、アンモニア性溶液、塩化物溶液、またはバクテリア浸出でも行なうことができる。浸出段階の後、硫酸化金属を含んでいる溶液から、銅が銅沈殿工程5で分離される。沈澱段階では、硫酸化金属を含んでいる溶液から、例えば水酸化物沈殿または硫化物沈殿によって銅が沈殿する。水酸化物沈殿では、銅は石灰石によって沈殿し、形成された銅沈殿物は溶解工程1へ戻される。硫化物沈殿では、銅は硫化水素によって沈殿し、形成された銅沈殿物は溶解工程1へ戻される。銅はまた、液―液抽出、および電気分解で陰極銅により回収することができる。
The blister slag formed in the melting step 1 is withdrawn from the suspension blast furnace through a provided circulation path, for example, a dredger, and further sent to a process for recovering copper contained in the blister slag. First, the blister slag is transferred to the granulation polishing step 3. The granulated blister slag is ground to a specified particle size, for example by wet polishing, in order to increase the surface reactivity. In the leaching step 4, the metal contained in the blister slag is leached. In the examples shown below, the leaching step 4 is performed in an oxidizing situation using sulfuric acid, resulting in the formation of copper sulfide. The amount of sulfuric acid added is preferably 500 to 900 grams per kilogram of slag. Leaching can also be done with ammoniacal solutions, chloride solutions, or bacterial leaching. After the leaching step, copper is separated in a
本発明を実証するために、耐酸性の2リットルの蓋付きの反応炉で、硫酸を用いて溶液実験を行なった。反応炉には、４つのバッフル板と、１つの還流冷却器と、１つのかくはん器とを整備した。また反応炉には、連続pH計測器、温度調整器、およびかくはん器の回転翼の下でかくはんされる酸素も接続した。熱板を加熱に使用した。 In order to demonstrate the present invention, a solution experiment was conducted using sulfuric acid in an acid resistant 2 liter reactor with a lid. The reactor was equipped with four baffle plates, one reflux condenser and one agitator. Also connected to the reactor was a continuous pH meter, temperature controller, and oxygen stirred under the agitator rotor. A hot plate was used for heating.
実験のまず初めに、スラグ(200ｇ = グラム)を水の中に浸出した。このときの水量は、1リットルより少し少なかった。実験全体で、水および加えられる硫酸の合計値は、ちょうど1リットルであった。溶液の温度は90oCであった。実験中に加えられた硫酸(H2SO4)の量は、806g/1000gスラグであった。 At the beginning of the experiment, slag (200 g = gram) was leached into the water. The amount of water at this time was a little less than 1 liter. Throughout the experiment, the total value of water and sulfuric acid added was just 1 liter. The temperature of the solution was 90 ° C. The amount of sulfuric acid (H 2 SO 4 ) added during the experiment was 806 g / 1000 g slag.
実験全体で浸出時間は6時間であり、この実験中、機械によるかくはん(約770 r/min = 回転/分)、および酸素(0.50 l/min = リットル/分)を加えた。 The leaching time was 6 hours throughout the experiment, during which time mechanical agitation (about 770 r / min = rev / min) and oxygen (0.50 l / min = liter / min) were added.
強硫酸(95重量%の含有量)を徐々に加え、それと同時に温度を90oCに調整した。反応時間の測定は、すべての酸が供給された時に開始した。懸濁液サンプルを、実験開始から0、2、4、および6時間が経過した時にそれぞれ採取した。サンプルのろ過液と沈殿物の中に、分解された銅(Cu)と鉄(Fe)が存在した。 Strong sulfuric acid (content of 95% by weight) was gradually added while the temperature was adjusted to 90 ° C. The reaction time measurement was started when all the acid was fed. Suspension samples were taken at 0, 2, 4, and 6 hours, respectively, after the start of the experiment. Decomposed copper (Cu) and iron (Fe) were present in the sample filtrate and precipitate.
最初に浸出させたスラグは、32.5% Cuと23.9% Feを含んでいた。これら分析結果とそれを基にして得た浸出の収率は、下記の表で表される。
最終的な沈殿物の重さは77.4g、また銅含有量は3.1%であり、このことは溶液中の銅の合計収率が96.3%であったことを意味している。 The final precipitate weighed 77.4 g and the copper content was 3.1%, which means that the total yield of copper in solution was 96.3%.
この実験を、類似したスラグ条件、すなわち、徐冷しないで、溶解状態から水によって直接粒状にしたスラグに対して繰り返し、得られた産出物は、対応する組成を有する微細化した粒状物であった。類似した条件で得られた銅の合計収率は95.8%であり、解析の精度を考慮すれば、この値は徐冷スラグと同位である。 This experiment was repeated for similar slag conditions, i.e. slag that was granulated with water directly from the dissolved state without slow cooling, and the resulting product was a refined granulate with the corresponding composition. It was. The total yield of copper obtained under similar conditions is 95.8%, and considering the accuracy of the analysis, this value is equivalent to that of annealed slag.
溶液から、酸度の調整によって銅が選択的に沈殿して、第１段階で鉄が沈殿し、第２段階で銅が沈殿するようにした。こうして所望しない鉄を銅から分離することができた。 From the solution, copper was selectively precipitated by adjusting the acidity so that iron was precipitated in the first stage and copper was precipitated in the second stage. Thus, undesired iron could be separated from copper.
本発明の様々な実施例は、上述の事例に限定されるものではなく、特許請求の範囲内で変化させてよいことは当業者にとって明らかである。 It will be apparent to those skilled in the art that the various embodiments of the present invention are not limited to the above examples but may vary within the scope of the claims.
Claims (10)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20022150A FI115638B (en) | 2002-12-05 | 2002-12-05 | Procedure for treating slag |
| PCT/FI2003/000898 WO2004050925A1 (en) | 2002-12-05 | 2003-11-24 | Method for treating slag |
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| Publication Number | Publication Date |
|---|---|
| JP2006509103A true JP2006509103A (en) | 2006-03-16 |
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| JP2004556365A Abandoned JP2006509103A (en) | 2002-12-05 | 2003-11-24 | Slag processing method |
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| Country | Link |
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| US (1) | US20060037435A1 (en) |
| EP (1) | EP1579017A1 (en) |
| JP (1) | JP2006509103A (en) |
| KR (1) | KR20050085402A (en) |
| CN (1) | CN1720342A (en) |
| AR (1) | AR042301A1 (en) |
| AU (1) | AU2003283455A1 (en) |
| BR (1) | BR0317061A (en) |
| EA (1) | EA200500756A1 (en) |
| FI (1) | FI115638B (en) |
| MX (1) | MXPA05005997A (en) |
| PE (1) | PE20040630A1 (en) |
| PL (1) | PL376932A1 (en) |
| WO (1) | WO2004050925A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013221216A (en) * | 2012-04-16 | 2013-10-28 | Yanggu Xiangguang Copper Co Ltd | Method for directly producing blister copper from copper concentrate |
| JP2014205133A (en) * | 2013-04-12 | 2014-10-30 | サム サム カンパニー, リミテッドSAM SAM Co., Ltd. | Slag treatment method for extraction of silica and magnesia |
| JP2016160110A (en) * | 2015-02-27 | 2016-09-05 | 独立行政法人国立高等専門学校機構 | Processing method for copper slag |
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|---|---|---|---|---|
| FI116686B (en) | 2003-07-17 | 2006-01-31 | Outokumpu Oy | Method for melting copper ligands |
| EP2053137A1 (en) * | 2007-10-19 | 2009-04-29 | Paul Wurth S.A. | Recovery of waste containing copper and other valuable metals |
| FI120157B (en) * | 2007-12-17 | 2009-07-15 | Outotec Oyj | A process for refining copper concentrate |
| KR101389430B1 (en) * | 2012-08-23 | 2014-04-25 | 엘에스니꼬동제련 주식회사 | The recovery method of valuble metals included in converter slag at copper smelter |
| RU2614293C2 (en) * | 2015-06-04 | 2017-03-24 | Общество с ограниченной ответственностью "Институт Гипроникель" | Method of low-autogenous raw material processing in flash smelting furnaces |
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| US2693405A (en) * | 1952-06-20 | 1954-11-02 | Sherritt Gordon Mines Ltd | Method of separating copper values from and ammoniacal solution |
| US3224873A (en) * | 1963-02-25 | 1965-12-21 | Gen Mills Inc | Liquid-liquid recovery of copper values using alpha-hydroxy oximes |
| US3632308A (en) * | 1969-12-05 | 1972-01-04 | Universal Oil Prod Co | Recovery of copper values from slag |
| US3928551A (en) * | 1970-07-27 | 1975-12-23 | American Cyanamid Co | Leaching polyelectrolyte fluidized solids |
| FR2200200A1 (en) * | 1972-09-25 | 1974-04-19 | Albright & Wilson | Recovery of zinc and copper from scrap - by lixiviation with aq ammonium bicarbonate and pptn as basic carbonates |
| US4034063A (en) * | 1974-03-22 | 1977-07-05 | Industrial Resources, Inc. | Process for control of SOx emissions from copper smelter operations |
| US4152142A (en) * | 1977-02-28 | 1979-05-01 | Kennecott Copper Corporation | Recovery of copper values from iron-containing ore materials as mined and smelted |
| US4484730A (en) * | 1982-09-30 | 1984-11-27 | Iso "Metalurgkomplekt" | Device for leaching copper from slags |
| NO156724C (en) * | 1983-07-08 | 1987-11-11 | Elkem As | PROCEDURE FOR EXPLOITING THE COPPER CONTENT IN SULPHIDIC ORE AND CONCENTRATES. |
| US5616168A (en) * | 1994-02-28 | 1997-04-01 | Kennecott Utah Copper Corporation | Hydrometallurgical processing of impurity streams generated during the pyrometallurgy of copper |
| CA2395995C (en) * | 2000-01-04 | 2010-05-25 | Outokumpu Oyj | Method for the production of blister copper in suspension reactor |
| CA2363969C (en) * | 2001-11-26 | 2009-01-13 | Walter Curlook | Process for the recovery of residual metal values from smelter waste slags, and from converter slags |
| FI114808B (en) * | 2002-05-03 | 2004-12-31 | Outokumpu Oy | Process for the processing of precious metal |
-
2002
- 2002-12-05 FI FI20022150A patent/FI115638B/en not_active IP Right Cessation
-
2003
- 2003-11-24 CN CNA2003801049585A patent/CN1720342A/en active Pending
- 2003-11-24 KR KR1020057010244A patent/KR20050085402A/en not_active Application Discontinuation
- 2003-11-24 EA EA200500756A patent/EA200500756A1/en unknown
- 2003-11-24 AU AU2003283455A patent/AU2003283455A1/en not_active Abandoned
- 2003-11-24 JP JP2004556365A patent/JP2006509103A/en not_active Abandoned
- 2003-11-24 MX MXPA05005997A patent/MXPA05005997A/en unknown
- 2003-11-24 EP EP20030775423 patent/EP1579017A1/en not_active Withdrawn
- 2003-11-24 WO PCT/FI2003/000898 patent/WO2004050925A1/en not_active Application Discontinuation
- 2003-11-24 PL PL37693203A patent/PL376932A1/en not_active Application Discontinuation
- 2003-11-24 US US10/536,631 patent/US20060037435A1/en not_active Abandoned
- 2003-11-24 BR BR0317061A patent/BR0317061A/en not_active IP Right Cessation
- 2003-12-02 PE PE2003001224A patent/PE20040630A1/en not_active Application Discontinuation
- 2003-12-04 AR ARP030104479 patent/AR042301A1/en not_active Application Discontinuation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013221216A (en) * | 2012-04-16 | 2013-10-28 | Yanggu Xiangguang Copper Co Ltd | Method for directly producing blister copper from copper concentrate |
| US8771396B2 (en) | 2012-04-16 | 2014-07-08 | Xiangguang Copper Co., Ltd. | Method for producing blister copper directly from copper concentrate |
| JP2014205133A (en) * | 2013-04-12 | 2014-10-30 | サム サム カンパニー, リミテッドSAM SAM Co., Ltd. | Slag treatment method for extraction of silica and magnesia |
| JP2016160110A (en) * | 2015-02-27 | 2016-09-05 | 独立行政法人国立高等専門学校機構 | Processing method for copper slag |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1579017A1 (en) | 2005-09-28 |
| PE20040630A1 (en) | 2004-11-11 |
| FI20022150A (en) | 2004-06-06 |
| KR20050085402A (en) | 2005-08-29 |
| AU2003283455A1 (en) | 2004-06-23 |
| BR0317061A (en) | 2005-10-25 |
| FI20022150A0 (en) | 2002-12-05 |
| MXPA05005997A (en) | 2005-08-18 |
| PL376932A1 (en) | 2006-01-09 |
| EA200500756A1 (en) | 2005-12-29 |
| FI115638B (en) | 2005-06-15 |
| US20060037435A1 (en) | 2006-02-23 |
| CN1720342A (en) | 2006-01-11 |
| WO2004050925A1 (en) | 2004-06-17 |
| AR042301A1 (en) | 2005-06-15 |
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