CN100385024C - Method of producing blister copper - Google Patents
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- CN100385024C CN100385024C CNB038135205A CN03813520A CN100385024C CN 100385024 C CN100385024 C CN 100385024C CN B038135205 A CNB038135205 A CN B038135205A CN 03813520 A CN03813520 A CN 03813520A CN 100385024 C CN100385024 C CN 100385024C
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims description 43
- 238000003723 Smelting Methods 0.000 claims abstract description 56
- 239000002893 slag Substances 0.000 claims abstract description 50
- 229910052802 copper Inorganic materials 0.000 claims abstract description 49
- 239000010949 copper Substances 0.000 claims abstract description 49
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 38
- 230000003647 oxidation Effects 0.000 claims abstract description 37
- 229910001361 White metal Inorganic materials 0.000 claims abstract description 32
- 239000010969 white metal Substances 0.000 claims abstract description 32
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 22
- 239000001301 oxygen Substances 0.000 claims abstract description 22
- 239000012141 concentrate Substances 0.000 claims abstract description 21
- 230000004907 flux Effects 0.000 claims abstract description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 16
- 239000000155 melt Substances 0.000 claims description 6
- 238000005188 flotation Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 239000000725 suspension Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 14
- 229910052742 iron Inorganic materials 0.000 description 12
- 229910052717 sulfur Inorganic materials 0.000 description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- 239000011593 sulfur Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- XOCUXOWLYLLJLV-UHFFFAOYSA-N [O].[S] Chemical compound [O].[S] XOCUXOWLYLLJLV-UHFFFAOYSA-N 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical compound [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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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
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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
- C22B15/003—Bath smelting or converting
- C22B15/0045—Bath smelting or converting in muffles, crucibles, or closed vessels
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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
- C22B15/0047—Smelting or converting flash smelting or converting
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
本发明涉及一种生产粗铜的方法，根据这一方法，将铜精矿(5)、助熔剂(6)和富氧的空气(7)一起送入悬浮熔炼炉(1)例如闪速熔炼炉，以致生成至少两个熔融相，例如白色金属相(11)和炉渣相(10)；在悬浮熔炼炉以后，将白色金属在至少一个氧化反应器(12)中氧化。The invention relates to a method for producing blister copper, according to which copper concentrate (5), flux (6) and oxygen-enriched air (7) are fed together into a suspension smelting furnace (1) such as flash smelting furnace so as to generate at least two molten phases, for example a white metal phase (11) and a slag phase (10); after the suspension smelting furnace, the white metal is oxidized in at least one oxidation reactor (12).
Description
本发明涉及一种生产粗铜的方法，根据这一方法，将铜精矿(5)、助熔剂(6)和富氧的空气(7)一起送入闪速熔炼炉(1)，以致生成至少两个熔融相，在闪速熔炼炉以后，白色金属在至少一个氧化反应器(12)中氧化，其特征在于，在闪速熔炼炉(1)中，氧势为10-7-10-6，而二氧化硫的分压为0.2-1，而设置氧化反应器(12)与闪速熔炼炉(1)连接。。The invention relates to a method for producing blister copper, according to which copper concentrate (5), flux (6) and oxygen-enriched air (7) are fed together into a flash smelting furnace (1) so that At least two molten phases, after the flash smelting furnace, the white metal is oxidized in at least one oxidation reactor (12), characterized in that in the flash smelting furnace (1) the oxygen potential is 10 -7 -10 - 6 , and the partial pressure of sulfur dioxide is 0.2-1, and the oxidation reactor (12) is set to be connected with the flash smelting furnace (1). .
在铜的闪速熔炼中，将干燥的铜精矿与富氧的空气和硅砂一起送入闪速熔炼炉中。在熔炼过程中所需的能量在硫和铁的氧化中得到。通过工艺空气的富氧程度来调节所述方法的热平衡，但有时也使用石油或天然气燃烧器来作为另外能源。硫氧化生成二氧化硫，而铁氧化并成渣生成硅酸铁。在沉降器中，熔融相随着炉渣和锍沉降在炉底上与所述气体分离，以致锍层在最底部。在闪速熔炼中，象在其他的铜熔炼法中一样，炉渣的主要功能是以流体的形式收集，排出在熔炼过程中产生的脉石的所有的氧化铁以及硅酸盐成分和氧化物成分。通常，炉渣被冷却、破碎和浮选，以便回收铜，或者将它在还原电炉法中处理。在锍相中，它通常进一步转化处理，制得50-70％的铜。在最通常使用的Peirce-Smith converting中，当在熔体中吹氧时，锍相所含的铁被氧化，并与加入的硅砂一起生成fajalite炉渣，在转化过程的最初步骤中后者在反应器中浮在富含铜的白色金属(whitemetal)的表面上。白色金属含有70-80％铜。当进一步将氧吹入白色金属时，生成粗铜，其铜含量为约99％。炉渣还含有5-10％的铜，它用浮选法以及通过将富含铜的炉渣浓缩物返回闪速熔炼炉或通过例如在电炉中在还原条件下处理炉渣来回收。In copper flash smelting, dry copper concentrate is fed into a flash smelting furnace along with oxygen-enriched air and silica sand. The energy required during the smelting process is obtained in the oxidation of sulfur and iron. The heat balance of the process is regulated by the degree of oxygen enrichment of the process air, but oil or natural gas burners are also sometimes used as additional energy sources. Sulfur is oxidized to form sulfur dioxide, while iron is oxidized and slagged to produce iron silicate. In the settler, the molten phase is separated from the gas as the slag and matte settle on the furnace floor, so that the matte layer is at the very bottom. In flash smelting, as in other copper smelting processes, the main function of the slag is to collect in the form of a fluid to expel all iron oxide and silicate and oxide components of the gangue produced during the smelting process . Typically, the slag is cooled, crushed and floated for copper recovery, or it is processed in a reduction electric furnace process. In the matte phase, it is usually further converted to 50-70% copper. In the most commonly used Peirce-Smith converting, when oxygen is blown in the melt, the iron contained in the matte phase is oxidized and forms fajalite slag together with the added silica sand, which reacts in the initial steps of the conversion process floating on the surface of copper-rich white metal (whitemetal). The white metal contains 70-80% copper. When oxygen is further blown into the white metal, blister copper is produced with a copper content of about 99%. The slag also contains 5-10% copper, which is recovered by flotation and by returning the copper-rich slag concentrate to the flash smelting furnace or by treating the slag under reducing conditions, for example in an electric furnace.
原则上，直接生产粗铜在经济上是合理的，也就是，在悬浮反应器中以一个工艺步骤从硫化的精矿生产粗铜，当然存在某些限制。在这里最大的问题是在所述的方法中，生成大量炉渣，而大量的铜还集中在这一炉渣中。另一方面，为了回收其中所含的铜，炉渣的处理需要额外的费用。当精矿中的铜含量足够高时，通常至少37％(重量)，以一个工艺步骤生产粗铜在经济上是有利的。如果精矿只含有少量的铁或其他生成炉渣的组分，那么在这种情况下，生成炉渣的数量不会如此地高，较低铜含量的精矿的加工也是有利的。当生产粗铜时，为了得到足够高的回收铜的产率，通常需要对生成的炉渣进行两步炉渣净化。In principle, the direct production of blister copper is economically sound, ie the production of blister copper from sulphided concentrates in one process step in a suspension reactor, with certain limitations of course. The biggest problem here is that in the method described, a large amount of slag is formed, and a large amount of copper is also concentrated in this slag. On the other hand, the disposal of the slag requires additional costs in order to recover the copper contained therein. When the copper content in the concentrate is sufficiently high, typically at least 37% by weight, it is economically advantageous to produce blister copper in one process step. If the concentrate contains only small amounts of iron or other slag forming components, in which case the amount of slag forming will not be as high and the processing of the lower copper content concentrate is also advantageous. When producing blister copper, a two-step slag cleaning of the resulting slag is usually required in order to obtain a sufficiently high yield of copper recovery.
根据现有技术，当在一定的氧势范围内操作时，在铜熔炼中生成所谓的白色金属，在这种情况下，相应炉渣相的铜含量大大低于粗铜与炉渣相平衡的情况。在图1(INSKO 261608VIII，第9页)，描述了Cu-Fe-S-O-SiO2体系在1300℃下的硫-氧势图。在图中，看到在铜熔炼过程中在不同条件下出现的不同相的含量。从图中可以看出，当白色金属存在时，相应炉渣的铜含量低于与粗铜平衡的炉渣。According to the prior art, so-called white metals are formed in copper smelting when operating within a certain range of oxygen potentials, in which case the copper content of the corresponding slag phase is much lower than in equilibrium with blister copper and slag. In Figure 1 (INSKO 261608VIII, page 9), the sulfur-oxygen potential diagram of the Cu-Fe-SO- SiO2 system at 1300°C is depicted. In the figure, the content of the different phases occurring under different conditions during copper smelting is seen. It can be seen from the figure that when white metal is present, the copper content of the corresponding slag is lower than that of the slag in equilibrium with blister copper.
从PCT 00/09772已知一种在氧存在下通过在1300℃或更低的温度下连续氧化精矿或锍来熔炼铜精矿的方法。根据这一方法，硫化铜精矿被熔融，所含的大部分铁作为炉渣被除去，而大部分硫转化成二氧化硫。制得的产物为白色金属、锍或粗铜。From PCT 00/09772 is known a process for smelting copper concentrates by continuous oxidation of concentrates or mattes in the presence of oxygen at temperatures of 1300°C or lower. According to this method, copper sulphide concentrate is melted, most of the iron contained is removed as slag, and most of the sulfur is converted to sulfur dioxide. The resulting product is white metal, matte or blister copper.
本发明的目的是克服现有技术中的一些缺点。本发明的另一目的是防止在粗铜生产中产生高铜含量的炉渣。The object of the present invention is to overcome some of the disadvantages of the prior art. Another object of the present invention is to prevent the generation of high copper content slags in blister copper production.
本发明的特征体现在以下技术方案中：The feature of the present invention is embodied in the following technical solutions:
(1)一种生产粗铜的方法，根据这一方法，将铜精矿(5)、助熔剂(6)和富氧的空气(7)一起送入闪速熔炼炉(1)，以致生成至少两个熔融相，在闪速熔炼炉以后，白色金属在至少一个氧化反应器(12)中氧化，其特征在于，在闪速熔炼炉(1)中，氧势为10-7-10-6，而二氧化硫的分压为0.2-1，而设置氧化反应器(12)与闪速熔炼炉(1)连接。(1) A method of producing blister copper, according to which copper concentrate (5), flux (6) and oxygen-enriched air (7) are fed together into a flash smelting furnace (1) so that At least two molten phases, after the flash smelting furnace, the white metal is oxidized in at least one oxidation reactor (12), characterized in that in the flash smelting furnace (1) the oxygen potential is 10 -7 -10 - 6 , and the partial pressure of sulfur dioxide is 0.2-1, and the oxidation reactor (12) is set to be connected with the flash smelting furnace (1).
(2)根据上述(1)的方法，其特征在于，所述熔融相为白色金属(11)和炉渣(10)。(2) The method according to (1) above, characterized in that the molten phase is white metal (11) and slag (10).
(3)根据上述(1)的方法，其特征在于，设置氧化反应器(12)以固定方式与闪速熔炼炉(1)连接。(3) The method according to the above (1), characterized in that an oxidation reactor (12) is provided to be fixedly connected to the flash smelting furnace (1).
(4)根据上述(1)的方法，其特征在于，氧化反应器(12)通过熔体流槽(13)与闪速熔炼炉(1)连接。(4) The method according to the above (1), characterized in that the oxidation reactor (12) is connected to the flash smelting furnace (1) through a melt launder (13).
(5)根据上述(1)-(4)中任一项的方法，其特征在于，氧化反应器(12)为表面鼓风式反应器。(5) The method according to any one of the above (1)-(4), characterized in that the oxidation reactor (12) is a surface blast reactor.
(6)根据上述(1)-(4)中任一项的方法，其特征在于，氧化反应器(12)为注入式反应器。(6) The method according to any one of the above (1)-(4), characterized in that the oxidation reactor (12) is an injection reactor.
(7)根据上述(6)的方法，其特征在于，还将固体白色金属注入氧化反应器(12)。(7) The method according to (6) above, characterized in that solid white metal is also injected into the oxidation reactor (12).
(8)根据上述(1)的方法，其特征在于，在闪速熔炼炉(1)以后，炉渣(10)在电炉中处理，以便回收其铜含量。(8) The method according to (1) above, characterized in that, after the flash smelting furnace (1), the slag (10) is treated in an electric furnace in order to recover its copper content.
(9)根据上述(1)的方法，其特征在于，在闪速熔炼炉(1)以后，炉渣(10)进行浮选处理，以便回收其铜含量。(9) The method according to (1) above, characterized in that, after the flash smelting furnace (1), the slag (10) is subjected to a flotation treatment in order to recover its copper content.
本发明生产粗铜的方法有几个优点。根据这一方法，将精矿、助熔剂和富氧的空气一起送入悬浮熔炼炉，例如闪速熔炼炉，以致生成至少两个熔融相，白色金属相和炉渣相；在悬浮熔炼炉以后，白色金属至少在一个氧化反应器中氧化。根据这一方法，悬浮熔炼炉中的操作优选在生产白色金属的条件下进行，这样的条件指炉中氧势为10-7-10-6，而二氧化硫的分压为0.2-1。白色金属基本由铜(70-80％)和硫组成。在熔炼中生成的白色金属基本上不含任何成渣组分。当在上述条件下操作时，有利地生成低铜炉渣，它适合直接用于回收铜处理，不需要任何单独的炉渣初还原，例如在电炉中。The method of the present invention for producing blister copper has several advantages. According to this method, concentrate, flux and oxygen-enriched air are fed together into a suspension smelting furnace, such as a flash smelting furnace, so that at least two molten phases are produced, a white metal phase and a slag phase; after the suspension smelting furnace, White metals are oxidized in at least one oxidation reactor. According to this method, the operation in the suspension smelting furnace is preferably carried out under conditions for the production of white metal such that the oxygen potential in the furnace is 10 -7 -10 -6 and the partial pressure of sulfur dioxide is 0.2-1. The white metal basically consists of copper (70-80%) and sulfur. The white metal formed during smelting is substantially free of any slag-forming components. When operating under the conditions described above, a low-copper slag is advantageously produced which is suitable for direct copper recovery processing without the need for any separate primary reduction of slag, such as in an electric furnace.
白色金属以连续操作或间歇操作方式排出炉子，以便在氧化炉中氧化，在那里白色金属中所含的硫用富氧的空气氧化，以致生成二氧化硫和粗铜，而且几乎没有任何炉渣。根据本发明的一个优选的实施方案，氧化反应器以固定的方式与悬浮熔炼炉连接。根据本发明的另一优选的实施方案，氧化反应器通过封闭式熔体用于熔体转移的流槽(launder)与悬浮熔炼炉连接。当氧化反应器为封闭式反应器时，更有利于控制所述方法中产生的气体的收集和回收。根据本发明的一个优选的实施方案，氧化反应器优选为表面鼓风式(surface blasting)反应器。根据另一优选的实施方案，氧化反应器为注入式反应器，利用该反应器，通过将固态的白色金属与氧化气体一起注入熔体的方法，也可使它有利地熔炼。使用的氧化反应器例如优选为Ausmelt、Isasmelt或Mitsubishi型。The white metal exits the furnace in continuous or batch operation to be oxidized in an oxidation furnace, where the sulfur contained in the white metal is oxidized with oxygen-enriched air so that sulfur dioxide and blister copper are formed, practically without any slag. According to a preferred embodiment of the present invention, the oxidation reactor is connected to the suspension smelting furnace in a fixed manner. According to another preferred embodiment of the present invention, the oxidation reactor is connected to the suspension smelting furnace via a closed melt launder for melt transfer. When the oxidation reactor is a closed reactor, it is more beneficial to control the collection and recovery of the gas generated in the process. According to a preferred embodiment of the present invention, the oxidation reactor is preferably a surface blasting reactor. According to another preferred embodiment, the oxidation reactor is an injection reactor, with which the white metal in solid state can also be advantageously smelted by injecting it into the melt together with the oxidizing gas. The oxidation reactor used is preferably of the Ausmelt, Isasmelt or Mitsubishi type, for example.
根据本发明的一个优选的实施方案，炉渣单独从悬浮熔炼炉排出并在电炉中处理，以回收其铜含量。根据本发明的另一个优选的实施方案，为了回收铜含量，炉渣在悬浮熔炼炉以后进行浮选处理。当使用本发明的方法时，有利的是不产生任何高铜含量的炉渣，避免了不需要的铜再循环，从而避免了产生的铜损失。According to a preferred embodiment of the present invention, the slag is separately discharged from the suspension smelting furnace and processed in an electric furnace to recover its copper content. According to another preferred embodiment of the present invention, the slag is subjected to flotation after the suspension smelting furnace in order to recover the copper content. Advantageously, when using the method of the present invention, no high copper content slags are produced, avoiding unwanted copper recycling and thus resulting copper losses.
下面参考附图更详细地说明本发明。The present invention is explained in more detail below with reference to the accompanying drawings.
图1 1300℃的温度下Cu-Fe-S-O-SiO2体系的硫-氧势图。Fig. 1 Sulfur-oxygen potential diagram of the Cu-Fe-SO- SiO2 system at a temperature of 1300 °C.
图2a本发明方法的工艺流程图。Figure 2a is a process flow diagram of the method of the present invention.
图2b本发明另一优选实施方案的方法的工艺流程图。Figure 2b is a process flow diagram of a method according to another preferred embodiment of the present invention.
图2a说明本发明的方法。现将精矿5、助熔剂6和富氧的空气7一起送入闪速熔炼炉1，以致在其下部4产生两个熔融相，白色金属相11和炉渣相10。在闪速熔炼炉以后，白色金属11在一个氧化反应器12中氧化，制得粗铜15。除了白色金属和炉渣以外，在闪速熔炼炉中还生成少量粗铜，也将它送入氧化反应器12。在闪速熔炼炉1中产生的工艺气体通过炉的上升烟道2送入废热锅炉8，在那里生成的粉尘9循环回闪速熔炼炉，而气体17送去进一步处理。白色金属11以连续操作或间歇操作的方式从炉1排出，送入氧化反应器12，在那里白色金属中所含的硫用富氧的空气16氧化，以致生成二氧化硫和粗铜15，而不是炉渣。根据图2a中说明的本发明的一个优选的实施方案，设置氧化反应器12以固定的方式与闪速熔炼炉连接。在图2b中说明的本发明另一优选的实施方案，氧化反应器12通过熔体流槽13与闪速熔炼炉直接连接。在闪速熔炼炉1中产生的炉渣10送去炉渣处理14，另一方法是送入电炉或送去浮选，以便回收炉渣中的铜含量。根据本发明的一个优选的实施方案，氧化反应器优选为表面鼓风式反应器或注入式反应器，在这种情况下，通过将固体白色金属与氧化气体一起注入熔体使它有利地熔融。氧化反应器优选例如为Ausmelt、Isasmelt或Mitsubishi型。Figure 2a illustrates the method of the present invention.
用以下实施例说明本发明。The invention is illustrated by the following examples.
实施例Example
使用本发明的方法，以163tph(吨/小时)的速率将含量为30％Cu、28％Fe、30％S、6％SiO2的铜精矿与硅砂一起在闪速熔炼炉中熔炼，硅砂以21tph的速率送入炉中。Using the method of the present invention, a copper concentrate containing 30% Cu , 28% Fe, 30% S, 6% SiO is smelted together with silica sand in a flash smelting furnace at a rate of 163tph (ton/hour), and silica sand Feed into the furnace at a rate of 21 tph.
在熔炼过程中，空气以63493标米3/小时的速率和氧以21956标米3/小时的速率吹入闪速熔炼炉，以致氧富集率为41％，当以每吨总进料计时，氧系数为171标米3O2。During smelting, air is blown into the flash smelting furnace at a rate of 63493 scm3 /hr and oxygen at a rate of 21956 scm3 /hr so that the oxygen enrichment rate is 41%, when measured per ton of total feed , the oxygen coefficient is 171 standard meters 3 O 2 .
由于氧化反应，在闪速熔炼炉中生成62004公斤/小时(含79％Cu、0.5％Fe)熔融的白色金属和109702公斤/小时(含4％Cu、44％Fe)炉渣。此外，还生成少量粉尘，后者循环回闪速熔炼炉。Due to the oxidation reaction, 62004 kg/h (containing 79% Cu, 0.5% Fe) of molten white metal and 109702 kg/h (containing 4% Cu, 44% Fe) of slag are produced in the flash smelting furnace. In addition, a small amount of dust is generated, which is recycled back to the flash smelter.
将炉渣在炉渣富集设备中处理，以致生成的炉渣流量为8844公斤/小时(含46％Cu、25％Fe)，然后将所述的炉渣与精矿一起送回闪速熔炼炉。The slag was processed in the slag enrichment plant so that the resulting slag flow rate was 8844 kg/h (containing 46% Cu, 25% Fe), and said slag was sent back to the flash smelting furnace together with the concentrate.
将生成的白色金属在氧化反应器中处理，并将4328标米3/小时工业氧和18979标米3/小时空气送入氧化反应器。现生成49274公斤/小时粗铜(含98％Cu、0.04％Fe)和少量炉渣(1吨/小时，含50％Cu、27％Fe)。将炉渣造粒，然后返回闪速熔炼炉。The resulting white metal is treated in an oxidation reactor, and 4328 standard m3 /hour of industrial oxygen and 18979 standard meter3 /hour of air are fed into the oxidation reactor. Now produce 49274 kg/h of blister copper (containing 98% Cu, 0.04% Fe) and a small amount of slag (1 ton/h, containing 50% Cu, 27% Fe). The slag is pelletized and returned to the flash smelting furnace.
在上述实施例中，来自氧化反应器的炉渣中和炉渣精矿中的循环回闪速熔炼炉的铜的总量为4575公斤铜，它对应于精矿所含铜总量的约9％。如果精矿直接熔炼成粗铜，那么炉渣的数量将为约130吨/小时，它甚至超过精矿中所含铜总量的50％。In the above example, the total amount of copper recycled back to the flash smelter in the slag from the oxidation reactor and in the slag concentrate was 4575 kg copper, which corresponds to about 9% of the total copper contained in the concentrate. If the concentrate is directly smelted into blister copper, the amount of slag will be about 130 t/h, which even exceeds 50% of the total copper contained in the concentrate.
对于熟悉本专业的技术人员来说，显然本发明的各种实施方案不限于上述实施例，而可在附后的权利要求书范围内变化。It is obvious to a person skilled in the art that the various embodiments of the invention are not limited to the examples described above, but may vary within the scope of the appended claims.
Claims (9)
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| FI20021114 | 2002-06-11 | ||
| FI20021114A FI116069B (en) | 2002-06-11 | 2002-06-11 | Procedure for making raw cups |
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| CN100385024C true CN100385024C (en) | 2008-04-30 |
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| US (1) | US20050199095A1 (en) |
| EP (1) | EP1511868A1 (en) |
| JP (1) | JP2005536629A (en) |
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| AR (1) | AR040256A1 (en) |
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| FI117769B (en) * | 2004-01-15 | 2007-02-15 | Outokumpu Technology Oyj | Feeding system in a suspension melting furnace |
| DE102005008684B4 (en) * | 2004-03-05 | 2008-10-09 | Merck Patent Gmbh | Use of liquid crystal displays and methods for their utilization |
| CA2565643C (en) * | 2006-06-28 | 2011-08-02 | Nippon Mining & Metals Co., Ltd. | Operation method of copper smelting |
| FI120157B (en) * | 2007-12-17 | 2009-07-15 | Outotec Oyj | Process for processing copper copper |
| JP4908456B2 (en) | 2008-06-02 | 2012-04-04 | パンパシフィック・カッパー株式会社 | Copper smelting method |
| CN102605191B (en) | 2012-04-16 | 2013-12-25 | 阳谷祥光铜业有限公司 | Method for directly producing row copper by copper concentrate |
| US9725784B2 (en) | 2012-06-21 | 2017-08-08 | Lawrence F. McHugh | Production of copper via looping oxidation process |
| CN102876902A (en) * | 2012-10-18 | 2013-01-16 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | Method for composite smelting of copper concentrate flash-molten bath and outokumpu flash furnace |
| FI125793B (en) | 2014-05-14 | 2016-02-15 | Outotec Finland Oy | Procedure for converting materials containing copper |
| JP6466869B2 (en) * | 2016-02-29 | 2019-02-06 | パンパシフィック・カッパー株式会社 | Operation method of copper smelting furnace |
| BE1025772B1 (en) * | 2017-12-14 | 2019-07-08 | Metallo Belgium | Improvement in copper / tin / lead production |
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| US4349383A (en) * | 1979-10-11 | 1982-09-14 | Klockner-Humboldt-Deutz Ag | Method for the pyrometallurgical production of copper |
| US4528033A (en) * | 1983-06-15 | 1985-07-09 | Outokumpu Oy | Method for producing blister copper |
| CN1211630A (en) * | 1998-08-08 | 1999-03-24 | 徐有生 | Pollution-free fire smelting method for Cu-Ni sulphide mine |
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| JPS5230259B2 (en) * | 1974-03-30 | 1977-08-06 | ||
| FI52358C (en) * | 1974-11-11 | 1977-08-10 | Outokumpu Oy | A method of continuously producing raw copper in one step from impure sulfide copper concentrate or ore. |
| US4416690A (en) * | 1981-06-01 | 1983-11-22 | Kennecott Corporation | Solid matte-oxygen converting process |
| US4470845A (en) * | 1983-01-05 | 1984-09-11 | Newmont Mining Corporation | Continuous process for copper smelting and converting in a single furnace by oxygen injection |
| CA1323495C (en) * | 1988-04-29 | 1993-10-26 | Marc Reist | Process and apparatus for converting of solid high-grade copper matte |
| US5194213A (en) * | 1991-07-29 | 1993-03-16 | Inco Limited | Copper smelting system |
| TR200201715T2 (en) * | 2000-01-04 | 2002-10-21 | Outokumpu Oyj | Method for the production of blister copper in suspension reactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4349383A (en) * | 1979-10-11 | 1982-09-14 | Klockner-Humboldt-Deutz Ag | Method for the pyrometallurgical production of copper |
| US4528033A (en) * | 1983-06-15 | 1985-07-09 | Outokumpu Oy | Method for producing blister copper |
| CN1211630A (en) * | 1998-08-08 | 1999-03-24 | 徐有生 | Pollution-free fire smelting method for Cu-Ni sulphide mine |
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| WO2003104504A1 (en) | 2003-12-18 |
| AR040256A1 (en) | 2005-03-23 |
| EA200401402A1 (en) | 2005-06-30 |
| CN1659293A (en) | 2005-08-24 |
| RS107704A (en) | 2007-04-10 |
| KR20050007600A (en) | 2005-01-19 |
| BR0311758A (en) | 2005-03-08 |
| FI20021114A0 (en) | 2002-06-11 |
| PL372533A1 (en) | 2005-07-25 |
| EA007445B1 (en) | 2006-10-27 |
| US20050199095A1 (en) | 2005-09-15 |
| FI116069B (en) | 2005-09-15 |
| PE20040137A1 (en) | 2004-05-05 |
| EP1511868A1 (en) | 2005-03-09 |
| CA2488398A1 (en) | 2003-12-18 |
| AU2003232264A1 (en) | 2003-12-22 |
| JP2005536629A (en) | 2005-12-02 |
| MXPA04012084A (en) | 2005-03-07 |
| FI20021114L (en) | 2003-12-12 |
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