PL78621B2 - - Google Patents
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- Publication number
- PL78621B2 PL78621B2 PL15872672A PL15872672A PL78621B2 PL 78621 B2 PL78621 B2 PL 78621B2 PL 15872672 A PL15872672 A PL 15872672A PL 15872672 A PL15872672 A PL 15872672A PL 78621 B2 PL78621 B2 PL 78621B2
- Authority
- PL
- Poland
- Prior art keywords
- copper
- solution
- iron
- heated
- pressure
- Prior art date
Links
- 239000010949 copper Substances 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000012141 concentrate Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052948 bornite Inorganic materials 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims 1
- BUGICWZUDIWQRQ-UHFFFAOYSA-N copper iron sulfane Chemical compound S.[Fe].[Cu] BUGICWZUDIWQRQ-UHFFFAOYSA-N 0.000 claims 1
- 235000003891 ferrous sulphate Nutrition 0.000 claims 1
- 239000011790 ferrous sulphate Substances 0.000 claims 1
- 150000002500 ions Chemical class 0.000 claims 1
- FWFGVMYFCODZRD-UHFFFAOYSA-N oxidanium;hydrogen sulfate Chemical compound O.OS(O)(=O)=O FWFGVMYFCODZRD-UHFFFAOYSA-N 0.000 claims 1
- 238000001556 precipitation Methods 0.000 claims 1
- 229910021653 sulphate ion Inorganic materials 0.000 claims 1
- 238000002386 leaching Methods 0.000 description 3
- 238000007605 air drying Methods 0.000 description 1
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 description 1
- 229910052951 chalcopyrite Inorganic materials 0.000 description 1
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical class [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Description
Po oddzieleniu czesci zelaza roztwory poddaje sie redukcji cisnieniowej wodorem w autoklawach w temperaturze do 200°C i pod calkowitym cisnie¬ niem do 60 atn w czasie krótszym od 1 godziny.Roztwory po wytraceniu miedzi poddaje sie rege¬ neracji w znany sposób, w wyniku czego otrzy¬ muje sie roztwór zawracany do obiegu.Zasadnicze korzysci wynikajace ze stosowania sposobu wedlug wynalazku polegaja na tym, ze otrzymuje sie miedz o wysokim stopniu czystosci, przy uzyskaniu powyzej 95% w stosunku do za¬ wartosci miedzi w koncentracie. Sumaryczny czas procesu jest znacznie krótszy od czasu znanych procesów.Sposób wedlug wynalazku jest przedstawiony w przykladzie otrzymania miedzi z koncentratu za¬ wierajacego siarczki miedzi. 1 tone koncentratu zawierajacego 26% miedzi w postaci chalkozynu (30,1%), bornitu (3,0%) i chal- kopirytu (1,1%) poddaje sie dwustopniowemu lu¬ gowaniu przeciwpradowemu roztworem zawieraja¬ cym 500 g/l siarczanu zelazowego o zawartosci 23,5% Fe++~+ i 135 g/l H2S04 i 5 g Cu/1, w tem¬ peraturze 92°C. W wyniku lugowania otrzymuje sie roztwór, który zawiera 66 g Cu/l i 1,75 g/l Fe+++. Roztwór ten ogrzewa sie w autoklawie do 150°C i po czasie 15 minut oddziela sie 60% zela¬ za w postaci stalej soli FeS04*H20. Nastepnie roz¬ twór poddaje sie cisnieniowej redukcji wodorem 4 w temperaturze 175°C i sumarycznym cisnieniu 45 atn w czasie 1 godziny. W wyniku redukcji 92,5% miedzi wytraca sie w postaci proszku, któ¬ ry po przemyciu i wysuszeniu na powietrzu zawie-, 5 ra 99,4% miedzi. Roztwór po redukcji zawierajacy 5 g Cu/l oraz cale zelazo w postaci Fe++ pod¬ daje sie utlenieniu powietrzem pod cisnieniem 40 atn w temperaturze 95°C w czasie 3 godzin, po czym roztwór zawraca sie do lugowania. PL PLAfter the removal of the iron, the solutions are subjected to pressure reduction with hydrogen in autoclaves at a temperature of up to 200 ° C and under a total pressure of up to 60 atm in less than 1 hour. The solutions after copper removal are regenerated in a known manner, as a result of which the recycle solution is obtained. The main advantages of the process according to the invention are that a high degree of purity copper is obtained, with more than 95% of the copper content of the concentrate. The total process time is much shorter than that of known processes. The method according to the invention is illustrated in the example of obtaining copper from a concentrate containing copper sulphides. 1 ton of the concentrate containing 26% copper in the form of chalcosine (30.1%), bornite (3.0%) and chalcopyrite (1.1%) is subjected to a two-stage anti-current leaching with a solution containing 500 g / l of sulfate iron containing 23.5% Fe +++, 135 g / l H 2 SO 4 and 5 g Cu / 1, at a temperature of 92 ° C. Leaching gives a solution that contains 66 g Cu / l and 1.75 g / l Fe +++. This solution is heated to 150 ° C. in an autoclave, and after 15 minutes 60% of the iron is separated off in the form of the solid FeSO 4 · H 2 O salt. The solution was then pressure reduced with hydrogen 4 at 175 ° C and a total pressure of 45 atm for 1 hour. As a result of the reduction, 92.5% of the copper is precipitated as a powder which, after washing and air-drying, contains 5% of the copper. The reduced solution containing 5 g Cu / l and all iron in the form of Fe ++ is oxidized with air at 40 atm and 95 ° C for 3 hours and the solution is returned to leaching. PL PL
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL15872672A PL78621B2 (en) | 1972-11-07 | 1972-11-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL15872672A PL78621B2 (en) | 1972-11-07 | 1972-11-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL78621B2 true PL78621B2 (en) | 1975-06-30 |
Family
ID=19960502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL15872672A PL78621B2 (en) | 1972-11-07 | 1972-11-07 |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL78621B2 (en) |
-
1972
- 1972-11-07 PL PL15872672A patent/PL78621B2/pl unknown
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