EP1656464B1 - Procede de production pyrometallurgique du cuivre dans un convertisseur - Google Patents

Procede de production pyrometallurgique du cuivre dans un convertisseur Download PDF

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Publication number
EP1656464B1
EP1656464B1 EP03818380A EP03818380A EP1656464B1 EP 1656464 B1 EP1656464 B1 EP 1656464B1 EP 03818380 A EP03818380 A EP 03818380A EP 03818380 A EP03818380 A EP 03818380A EP 1656464 B1 EP1656464 B1 EP 1656464B1
Authority
EP
European Patent Office
Prior art keywords
gas
melt
converter
copper
process step
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.)
Expired - Lifetime
Application number
EP03818380A
Other languages
German (de)
English (en)
Other versions
EP1656464A1 (fr
Inventor
Andreas Filzwieser
Stefan Wallner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Refractory Intellectual Property GmbH and Co KG
Original Assignee
Refractory Intellectual Property GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Refractory Intellectual Property GmbH and Co KG filed Critical Refractory Intellectual Property GmbH and Co KG
Publication of EP1656464A1 publication Critical patent/EP1656464A1/fr
Application granted granted Critical
Publication of EP1656464B1 publication Critical patent/EP1656464B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
    • 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
    • C22B15/0041—Bath smelting or converting in converters
    • 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
    • C22B15/006—Pyrometallurgy working up of molten copper, e.g. refining

Definitions

  • the invention relates to a method for pyrometallurgical production of copper in a converter.
  • so-called blister copper as raw materials such as copper and / or secondary raw materials are used.
  • the aim is to produce the so-called blister copper in a purity of at least 96 wt .-%, preferably above 99 wt .-%.
  • the aim is to achieve purities that are as close as possible to 100 wt .-%.
  • a copper-containing melt is first filled into the converter (charged into the converter).
  • This process which is also referred to as “ slagging", has the aim of purifying the copper melt so far that for the most part this consists only of Cu 2 S (also called “ white metal”).
  • DE 42 05 657 A1 describes a method for blowing non-iron feedstocks, in which the feedstock is melted in a converter and the melt is then stirred by blowing a gas below the bath surface to reduce batch-forming and wear-promoting splashes.
  • US 5,215,571 A relates to a method of converting an iron-containing copper mat wherein oxygen is bubbled onto the surface of the melt while the melt itself is being stirred with an inert gas.
  • the invention aims to optimize the known method.
  • the copper production should be possible either in a shorter time and / or with a higher degree of purity.
  • the invention is based on the following consideration: During the filling (charging) of the converter no metallurgical work is performed in the reactor.
  • the oven serves only as a " buffer” or " holding unit”. This also applies to the last process step, in which the melt is emptied from the converter.
  • a rinse treatment during " purge” has the advantage of speeding up the removal of impurities and the formation of slag.
  • the rinsing treatment can be used to a further effect:
  • the slag can be selectively lead towards the converter opening, where it is then withdrawn.
  • a more precise separation between slag on the one hand and melt on the other hand is achieved and avoided the observed in the prior art loss of melt.
  • the gas used in process stages a), b), c) and e) can, like the gas used in process stage d), consist predominantly or completely of oxygen. Likewise, other gases, including inert gases, are possible.
  • the proportion of oxygen can be deliberately withdrawn and replaced by a proportion of inert gas.
  • the inert gas treatment can be continued.
  • the actual conversion process in process step d) can be represented chemically as follows: 2Cu 2 S + 3O 2 ⁇ 2CU 2 O + 2SO 2 2Cu 2 O + Cu 2 S ⁇ 6Cu + SO 2 .
  • the emptying of a converter with 300 tons blister copper takes about one hour.
  • the molten metal should also be present during this discharge stage Gas be treated (treated).
  • the secondary metallurgical treatment of the copper melt can be carried out throughout the conversion process.
  • the supply of the gas can take place via a plurality of Gas Rauchettin.
  • Gas Kunststoffmaschine gas purging
  • Such Gas Kunststoffmaschine gas purging
  • gas purging elements are known in particular from the treatment of steel melts, for decades.
  • Such gas purging elements can be adopted according to the invention without further ado.
  • Both gas purging elements with directed porosity and those with undirected porosity can be used.
  • the first group is characterized in that more or less straight slits or channels are formed in the flushing elements, through which the gas is passed.
  • Gasndetti with undirected porosity are designed as a " sponge". The gas must move through the body from pore to pore.
  • Such Gas Series reminde can be used individually or in groups in the bottom and / or wall of the converter. According to the invention it is provided that they can be activated individually, in preselectable groups or all together. In this case, in turn, individual gas purging elements or groups of gas purging elements can be charged with different gas or gas pressure.
  • a corresponding gas control is provided for this purpose. This can be adjusted to put the molten metal in such a motion that the slag floating on it receives a certain flow direction, for example in the direction of tapping opening.
  • the process can be conducted in such a way that gas (s) is introduced (injected, injected) into the melt during all stages of treatment and continuously.
  • both the gas and the gas quantity or the gas pressure can be changed during the individual treatment stages.
  • 10 gas purging elements may be provided, each at a purging rate of, for example, 200 liters per minute.
  • the process enables a significantly accelerated pyrometallurgical copper production with a degree of purity which at least corresponds to the degree of purity according to the prior art and can be well above 99.5 wt .-%.

Landscapes

  • 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)
  • Heat Treatment Of Articles (AREA)

Claims (10)

  1. Procédé d'obtention pyrométallurgique de cuivre dans un convertisseur, avec les caractéristiques suivantes :
    a) chargement du convertisseur avec la matière fondue cuprifère,
    b) traitement de la matière fondue de telle sorte que les composants étrangers soient transférés dans une scorie jusqu'à ce que la matière fondue ne consiste plus en majeure partie qu'en Cu2S,
    c) élimination de la scorie du convertisseur,
    d) soufflage de gaz dans la matière fondue contenant le Cu2S pour la réalisation, par élimination du soufre, d'un bain de cuivre fondu pur dans une très large mesure,
    e) vidage du convertisseur dans un organe en aval, sachant que
    f) même pendant les étapes de procédé a), b), c) et e), du gaz est insufflé dans la matière fondue respective.
  2. Procédé selon la revendication 1, dans lequel, pendant l'étape a) du procédé, un gaz qui consiste essentiellement en oxygène est introduit dans la matière fondue.
  3. Procédé selon la revendication 1, dans lequel, pendant l'étape b) du procédé, un gaz qui consiste essentiellement en oxygène est introduit dans la matière fondue.
  4. Procédé selon la revendication 1, dans lequel, pendant l'étape d) du procédé, un gaz qui consiste essentiellement en oxygène est introduit dans la matière fondue.
  5. Procédé selon la revendication 1, dans lequel, pendant l'étape e) du procédé, un gaz qui consiste essentiellement en oxygène est introduit dans la matière fondue.
  6. Procédé selon la revendication 1, dans lequel, dans la deuxième moitié au moins de l'étape e) du procédé, le gaz introduit est au moins en partie un gaz inerte.
  7. Procédé selon la revendication 1, dans lequel l'introduction du gaz s'effectue par une multitude d'éléments de balayage par gaz qui peuvent être alimentés en combinaisons présélectionnables et/ou à pression de gaz présélectionnable et avec les mêmes gaz ou des gaz différents.
  8. Procédé selon la revendication 7, dans lequel l'introduction du gaz s'effectue de telle sorte que, dans l'étape c) du procédé, les scories sont conduites de façon ciblée en direction d'une ouverture de soutirage.
  9. Procédé selon la revendication 1, dans lequel du gaz est introduit de façon ininterrompue dans la matière fondue pendant toutes les étapes du procédé.
  10. Procédé selon la revendication 9, dans lequel le gaz est introduit pendant les différentes étapes du procédé en différentes compositions, en différents débits et/ou à différentes pressions de gaz.
EP03818380A 2003-08-23 2003-08-23 Procede de production pyrometallurgique du cuivre dans un convertisseur Expired - Lifetime EP1656464B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2003/009367 WO2005021808A1 (fr) 2003-08-23 2003-08-23 Procede de production pyrometallurgique du cuivre dans un convertisseur

Publications (2)

Publication Number Publication Date
EP1656464A1 EP1656464A1 (fr) 2006-05-17
EP1656464B1 true EP1656464B1 (fr) 2007-01-03

Family

ID=34259098

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03818380A Expired - Lifetime EP1656464B1 (fr) 2003-08-23 2003-08-23 Procede de production pyrometallurgique du cuivre dans un convertisseur

Country Status (9)

Country Link
US (1) US20060236812A1 (fr)
EP (1) EP1656464B1 (fr)
JP (1) JP4477580B2 (fr)
CN (1) CN100357463C (fr)
AT (1) ATE350500T1 (fr)
CA (1) CA2539011A1 (fr)
DE (1) DE50306237D1 (fr)
ES (1) ES2279232T3 (fr)
WO (1) WO2005021808A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT503456A1 (de) * 2006-03-27 2007-10-15 Mettop Metallurg Optimierungs Verfahren zur pyrometallurgischen erzeugung von kupfer
CL2008000116A1 (es) * 2008-01-15 2008-03-14 Univ De Chile 51 Empresa Nac D Metodo pirometalurgico intensivo continuo de conversion de mata de cobre liquida que comprende alimentar dicha mata dentro del primer reactor de oxidacion, suministrar gases al lecho empacado y fundentes silicios, sangrar la escoria, alimentar metal
ES2357684T3 (es) * 2009-05-20 2011-04-28 REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG Equipo metalúrgico de fusión y tratamiento.
CN102605191B (zh) * 2012-04-16 2013-12-25 阳谷祥光铜业有限公司 一种铜精矿直接生产粗铜的方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941587A (en) * 1973-05-03 1976-03-02 Q-S Oxygen Processes, Inc. Metallurgical process using oxygen
CA1190751A (fr) * 1982-06-18 1985-07-23 J. Barry W. Bailey Methode et installation de conversion continue de mattes de cuivre et de non ferreux
JPS61127835A (ja) * 1984-11-26 1986-06-16 Sumitomo Metal Mining Co Ltd 銅転炉の吹錬方法
CA1322659C (fr) * 1987-03-23 1993-10-05 Samuel Walton Marcuson Procede d'affinage pyrometallurgique du cuivre
CA2041297C (fr) * 1991-04-26 2001-07-10 Samuel Walton Marcuson Convertisseur et methode de gonflage par le haut d'un metal non ferreux
US5215571A (en) * 1992-10-14 1993-06-01 Inco Limited Conversion of non-ferrous matte
US5360204A (en) * 1993-09-20 1994-11-01 Keibler-Thompson Corp. Boom and lance for removing slag from crucible
AUPM657794A0 (en) * 1994-06-30 1994-07-21 Commonwealth Scientific And Industrial Research Organisation Copper converting
DE10259434B3 (de) * 2002-12-19 2004-08-26 Refractory Intellectual Property Gmbh & Co.Kg Gasspüleinrichtung für metallurgische Schmelzgefäße

Also Published As

Publication number Publication date
DE50306237D1 (de) 2007-02-15
JP2007515549A (ja) 2007-06-14
ATE350500T1 (de) 2007-01-15
EP1656464A1 (fr) 2006-05-17
ES2279232T3 (es) 2007-08-16
CA2539011A1 (fr) 2005-03-10
WO2005021808A1 (fr) 2005-03-10
AU2003258656A1 (en) 2005-03-16
CN100357463C (zh) 2007-12-26
JP4477580B2 (ja) 2010-06-09
US20060236812A1 (en) 2006-10-26
CN1820087A (zh) 2006-08-16

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