CS255354B1 - The method of pyrometallurgical refining of lead and antimony - Google Patents

The method of pyrometallurgical refining of lead and antimony Download PDF

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CS255354B1
CS255354B1 CS838792A CS879283A CS255354B1 CS 255354 B1 CS255354 B1 CS 255354B1 CS 838792 A CS838792 A CS 838792A CS 879283 A CS879283 A CS 879283A CS 255354 B1 CS255354 B1 CS 255354B1
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oxidation
copper
weight
slag
medium
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CS838792A
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Czech (cs)
Slovak (sk)
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CS879283A1 (en
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Vladimir Repcak
Ladislav Froehlich
Juraj Schmiedl
Stefan Cempa
Ladislav Miklos
Anton Macko
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Vladimir Repcak
Ladislav Froehlich
Juraj Schmiedl
Stefan Cempa
Ladislav Miklos
Anton Macko
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Publication of CS879283A1 publication Critical patent/CS879283A1/en
Publication of CS255354B1 publication Critical patent/CS255354B1/en

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Abstract

Spósobom pyrometalurgickej rafinácie médi sa dosiahne zvýšenie stupňa odstránenie olova a antimonu. Podstatou je rozdolenie oxidácie médi do dvoch častí. V prvej časti sa oxiduje med s prídavkom 1,2 až 2,7 kg oxidu křemičitého na 100 kg vsadenej médi až do zvýšenia obsahu kyslíka > v médi na 0,8 až 1,0 % hmot. Získá sa tak ti’oska s obsahom 15 až 25 % hmot. S1O2 a 45 až 58 % hmot. Cu. Do trosky přejde 80 až 95 % hmot. olova a 15 až 25 °/o hmot. antimónu z ich východiskových obsahov v rafinovanej médi. Po ukončení prvej časti o· xidácie sa kyslá rafinačná kostka sliahno z pece. V druhej časti oxidácie sa vsadí 1,1 až 1,8 kg uhličitanu sodného na 100 kg médi. Oxidácia pokračuje až do zvýšenia obsahu kyslíka v médi na 1,7 až 2,0 % hmot. Získá sa tak troska s obsahom 5 až 8 °/o hmot. NažO a 60 až 75 % hmot. Cu. Do tejto trosky přejde 2 až 15 % Pb a 55 až 75 °/o hmot. Sb z východiskového obsahu v médi. Celkový stupeň odstránenia primiešanín v priebehu oxidácie sa dosiahne 95 až 99 % hmot. Pb a 80 až 95 °/o hmot. Sb.The method of pyrometallurgical refining of copper achieves an increase in the degree of removal of lead and antimony. The essence is to divide the oxidation of copper into two parts. In the first part, copper is oxidized with the addition of 1.2 to 2.7 kg of silicon dioxide per 100 kg of charged copper until the oxygen content in copper increases to 0.8 to 1.0% by weight. This results in a slag with a content of 15 to 25% by weight S1O2 and 45 to 58% by weight Cu. 80 to 95% by weight of lead and 15 to 25% by weight of antimony from their initial contents in the refined copper pass into the slag. After the completion of the first part of the oxidation, the acidic refining cube is removed from the furnace. In the second part of the oxidation, 1.1 to 1.8 kg of sodium carbonate per 100 kg of copper is charged. Oxidation continues until the oxygen content in copper increases to 1.7 to 2.0 wt%. A slag with a content of 5 to 8 wt. Na2O and 60 to 75 wt. Cu is obtained. 2 to 15 wt. Pb and 55 to 75 wt. Sb from the initial content in copper pass into this slag. The total degree of removal of impurities during oxidation is 95 to 99 wt. Pb and 80 to 95 wt. Sb.

Description

3 43 4

Vynález sa týká sposobu pyrometalurgic-kej rafinácie médi od olova a antimonu, uktorého rieši vytvorenie oxidačného a traskového režimu, ktorý umožňuje vysoký stu-peň odstránenia týchto kovov do trosky. V súčasnosti sa pri pyrometalurgickej ra-finácii médi s obsahom olova a antimonupoužívajú rafinačné trosky na báze oxidumeďného. Na zvýšenie rafinačného účinkusa do týchto trosiek přidává zmes vápencaa kremeňa, připadne sody a kremeňa. Ne-výhodou tohto sposobu rafinácie je vznikkremičitanu sodného, připadne kremičita-nu vápenatého v důsledku čoho sa o je-den poriadok zníži aktivita oxidov, křemi-čitého, sodného a vápenatého. Oxidy vá-penatý a sodný významné znižujú odstrá-nenie olova do trosky a oxid křemičitýmierne znižuje odstránenie antimonu dotrosky. V důsledku týchto nedostatkov sústupně odstránenia oboch primiešanín níz-ké a dosahujú 60—70 % olova a 40—50 %antimonu, v % hmot.BACKGROUND OF THE INVENTION The present invention relates to a process for the purification of lead and antimony by means of a pyrometallurgical refining process which provides for the formation of an oxidation and trash mode which allows a high degree of removal of these metals into the slag. Oxide-based refining slags are currently used in lead-containing antimony-based pyrometallurgical refining. To increase the refining effect, a mixture of limestone and quartz is added to these debris, possibly soda and quartz. An advantage of this process of refining is the sodium silicate, possibly calcium silicate, which reduces the activity of silicon, sodium and calcium oxides by one day. Calcium and sodium oxides significantly reduce lead removal to slag, and silicon dioxide reduces the removal of antimony to a greater extent. As a result of these drawbacks, the low removal rates of the two primers are 60-70% lead and 40-50% antimony, in% by weight.

Zvýšenie stupňa odstránenia olova a an-timonu sa dosiahne sposobom pyrometalur-gickej rafinácie médi pódia vynálezu, kto-rého podstatou je rozdelenie oxidácie médido dvoch častí, v prvej časti sa oxidujemed s prídavkom 1,2 až 2,7 kg oxidu kře-mičitého na 100 kg vsadenej médi až dozvýšenia obsahu kyslíka v médi na 0,8 až1,0 °/o hmot. Získá sa tak troska s obsahom15 až 25 % hmot. S1O2 a 45 až 58 % hmot.Cu. Do tejto trosky přejde 80 až 95 % olo-va a 15 až 25 % antimonu z ich východis-kových obsahov v rafinovanej médi. Po u-končení prvej časti oxidácie sa kyslá rafi-načná troska stiahne z pece. V druhej čas-ti oxidácie sa vsadí 1,1 až 1,8 kg uhličita-nu sodného na 100 kg médi. Oxidácia po-kračuje až do zvýšenia obsahu kyslíka vmédi na 1,7 až 2,0 % hmot. Získá sa taktroska s obsahom 5—8 % hmot. NažO a 60až 75 % hmot. Cu. Do tejto trosky přejde 2až 15 % Pb a 55 až 75 % Sb z ich východis-kového obsahu v médi. Celkový stupeň od-stránenia primiešanín v priebehu oxidáciedosiahne 95 až 99 % Pb a 80 až 95 % Sb.Po ukončení druhej časti oxidácie sa tros-ka stiahne z pece.An increase in the lead and anon-removal rate is achieved by the pyrometallurgical refining of the medium of the invention, which is based on the distribution of the oxidation of the media in the two parts, in the first part oxidized with the addition of 1.2 to 2.7 kg of silica on 100 kg of loaded medium until the oxygen content of the medium was increased to 0.8-1.0% by weight. This gives a slag with a content of 15 to 25% by weight. S1O2 and 45-58 wt. 80 to 95% of olefin and 15 to 25% of antimony from their starting contents in the refined medium pass into this slag. Upon completion of the first portion of oxidation, the acid refining slag is withdrawn from the furnace. In the second part of the oxidation, 1.1 to 1.8 kg of sodium carbonate per 100 kg of medium are charged. The oxidation is continued until the oxygen content of the mixture is increased to 1.7 to 2.0% by weight. A tartrate with a content of 5-8% by weight is obtained. N 2 O and 60 to 75 wt. Cu. 2 to 15% Pb and 55 to 75% Sb from their starting content in the medium will pass into this slag. The total degree of removal of the admixtures during oxidation reaches 95-99% Pb and 80-95% Sb.

Postup pyrometalurgickej rafinácie médipodl'a vynálezu představuje pokrok oprotidoteraz známým postupom využívania oxi-du křemičitého a uhličitanu sodného vtom, že zaručuje odstránenie 95 až 99 %hmot. Pb a 80 až 95 % hmot. Sb. Příklad 1The process for the pyrometallurgical refining of the present invention is an advancement of the previously known process for the use of silica and sodium carbonate in that it guarantees the removal of 95 to 99 wt. Pb and 80 to 95 wt. Coll. Example 1

Konvertorová med s obsahom 0,34 %hmot. Pb a 0,30 % hmot. Sb sa roztavila vpeci. K médi sa přidalo 2,45 kg kremeňa sobsahom 98 % S1O2 na 100 kg médi. Do mé-di sa začal vháňaf vzduch. Po prefúkaní 5Nm3 vzduchu na 100 kg Cu sa fúkanie pře-rušilo. Obsah olova v médi sa znížil na0,02 % hmot. a obsah antimonu na 0,25 %hmot. Med obsahovala 0,9 % hmot. O. Zís-kaná troska s obsahom 3,45 % hmot. Pb,1,73 % hmot. Sb, 45 % hmot. Cu a 17 %hmot. S1O2 sa stiahla z povrchu médi. Vdruhej časti oxidácie sa k médi vsadilo 2,7kilogramu uhličitanu sodného na 100 kg Cua pokračovalo sa v oxidácii fúkaním vzdu-chu. Po prefúkaní dalších 5 Nm3 vzduchuna 100 kg Cu sa fúkanie přerušilo. Obsaholova v médi sa znížil na 0,01 % hmot. aobsah antimonu na 0,03 % hmot. Med ob-sahovala 1,9 % hmot. O. Získaná troska ob-sahovala 0,50 % hmot. Pb, 1,34 % hmot.Sb, 65,5 % hmot. Cu a 6,5 % hmot. NažO.Táto troska sa stiahla z povrchu médi. Ob-sah kyslíka vo vyrafinovanej médi sa po-tom znížil obvyklým postupom. V priebehuoxidácie sa z médi odstránilo 97,1 % olovaa 90,0 % antimonu. Příklad 2Converter honey containing 0.34 wt. Pb and 0.30 wt. Sb was melted. To the medium was added 2.45 kg of quartz containing 98% SiO 2 per 100 kg medium. Air began to blow into the media. After blowing 5 Nm 3 of air per 100 kg of Cu, the blowing was interrupted. The lead content in the medium was reduced to 0.02% by weight. and antimony content to 0.25 wt. The honey contained 0.9 wt. O. The obtained slag containing 3.45 wt. Pb, 1.73 wt. Sb, 45 wt. Cu and 17 wt. S1O2 was withdrawn from the surface of the medium. In the second part of the oxidation, 2.7 kg of sodium carbonate per 100 kg of Cu were charged to the medium and oxidation was continued by blowing air. After blowing an additional 5 Nm3 of air 100 kg Cu, the blowing was interrupted. The content in the medium was reduced to 0.01% by weight. and an antimony content of 0.03 wt. The honey contained 1.9 wt. The slag obtained contained 0.50 wt. % Pb, 1.34 wt% Sb, 65.5 wt%. Cu and 6.5 wt. This slag was withdrawn from the surface by the medium. The oxygen content of the refined medium was then reduced by the usual procedure. During the oxidation, 97.1% of lead and 90.0% of antimony were removed from the medium. Example 2

Pre rafináciu sa použila konvertorovámed s obsahom 0,22 °/o hmot. Pb a 0,10 %hmot. Sb. Po roztavení médi v peci sa knej přidalo 1,3 kg kremeňa s obsahom 98pere. hmot. S1O2 na 100 kg a začala sa prváčasť oxidácie. Po prefúkaní 5 Nm3 vzduchuna 100 kg Cu sa fúkanie přerušilo. Obsaholova v médi sa znížil na 0,040 % hmot. aobsah antimonu na 0,078 % hmot. Med ob -sahovala 1 % hmot. O. Troska z prvej čas-ti oxidácie s obsahom 3,10 % hmot. Pb,0,54 % hmot. Sb, 20,5 % hmot. S1O2 a 57 %hmot. Cu sa stiahlo z povrchu médi. V dru-hom stupni sa med oxidovala s prídavkom 1,3 kg uhličitanu sodného na 100 kg médi.Oxidácia sa ukončila po prefúkaní dalších5 Nm3 vzduchu na 100 kg Cu. Obsah olovav médi sa znížil na 0,010 % hmot. a obsahantimonu na 0,016 % hmot. Med obsahova-la 1,95 % hmot. O. Troska z druhej časti o-xidácie obsahovala 0,18 % hmot. Pb, 0,43 %hmot. Sb, 68,5 % hmot. Cu a 5,56 % hmot.Na2O. Troska sa stiahla z médi a obsah kys-líka sa znížil známým postupom. v priebehuoxidácie sa z médi odstránilo 95,5 % olovaa 84,0 % antimonu, v % hmot.For refining, a conversion of 0.22% by weight was used. Pb and 0.10 wt. Coll. After melting the medium in the furnace, 1.3 kg of quartz containing 98 pounds was added. wt. S1O2 per 100 kg and the first oxidation was started. After blowing 5 Nm3 of air 100 kg Cu, the blowing was interrupted. The content in the medium was reduced to 0.040% by weight. and antimony content to 0.078 wt. The honey contained 1 wt. O. First oxidation slag with 3.10 wt. Pb, 0.54 wt. Sb, 20.5 wt. S1O2 and 57 wt. Cu was withdrawn from the surface by the medium. At the second stage, the honey was oxidized with the addition of 1.3 kg of sodium carbonate per 100 kg of medium. The lead content of the medium was reduced to 0.010% by weight. and the content of ammonium to 0.016 wt. The honey contained 1.95 wt. O. The slag from the second part of the oxidation contained 0.18 wt. Pb, 0.43 wt. Sb, 68.5 wt. Cu and 5.56% wt Na2O. The slag was withdrawn from the medium and the oxygen content was reduced by a known method. in the course of the oxidation, 95.5% lead and 84.0% antimony were removed from the medium, in% by weight.

Claims (1)

255354 PREDMET Spůsob pyrometalurgickej rafinácie mé-di od olova a antimonu, vyznačený tým, žeoxidácia médi vzduchom sa rozdělí do dvochčastí, pričom v prvej časti oxidácie sa akotroskotvorná přísada použije oxid křemiči-tý v množstve 1,2 až 2,7 kg na 100 kg vsa-denej médi, po zvýšení obsahu kyslíka vmédi na 0,8 až 1,0 % hmot. sa prvá časť o- VYNÁLEZU xidácie ukončí, troska sa stiahne a v dru-hej časti oxidácie sa použije ako trosko-tvorná přísada uhličitan sodný v množstve 1,1 až 1,8 kg na 100 kg vsadenej médi, dru-há časť oxidácie sa ukončí pri zvýšení ob-sahu kyslíka v rafinovanej médi na 1,7 až2,0 % hmot. a troska sa stiahne.255354 PREDMET Method of lead and antimony-based pyrometallurgical refining, characterized in that the oxidation of the medium by air is divided into two parts, in the first part of the oxidation, the silicon dioxide is used in the amount of 1,2 to 2,7 kg per 100 kg % of the medium, after increasing the oxygen content of the mixture to 0.8 to 1.0% by weight. the first part of the invention is terminated, the slag is withdrawn, and in the second part of the oxidation, sodium carbonate is used as the slag-forming additive at a rate of 1.1 to 1.8 kg per 100 kg of medium, the other part of the oxidation being % to 1.7 to 2.0% by weight of the refined medium; and the wreck falls.
CS838792A 1983-11-25 1983-11-25 The method of pyrometallurgical refining of lead and antimony CS255354B1 (en)

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