WO2020142856A1 - Proceso de obtención de sulfato de cobre pentahidratado - Google Patents
Proceso de obtención de sulfato de cobre pentahidratado Download PDFInfo
- Publication number
- WO2020142856A1 WO2020142856A1 PCT/CL2019/000003 CL2019000003W WO2020142856A1 WO 2020142856 A1 WO2020142856 A1 WO 2020142856A1 CL 2019000003 W CL2019000003 W CL 2019000003W WO 2020142856 A1 WO2020142856 A1 WO 2020142856A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- copper
- solution
- stage
- mineral
- obtaining
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 60
- JZCCFEFSEZPSOG-UHFFFAOYSA-L copper(II) sulfate pentahydrate Chemical compound O.O.O.O.O.[Cu+2].[O-]S([O-])(=O)=O JZCCFEFSEZPSOG-UHFFFAOYSA-L 0.000 title claims abstract description 15
- 239000010949 copper Substances 0.000 claims abstract description 62
- 229910052802 copper Inorganic materials 0.000 claims abstract description 53
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims abstract description 43
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 34
- 239000011707 mineral Substances 0.000 claims abstract description 34
- 239000000243 solution Substances 0.000 claims abstract description 33
- 238000002425 crystallisation Methods 0.000 claims abstract description 15
- 239000013078 crystal Substances 0.000 claims abstract description 14
- 238000002386 leaching Methods 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 9
- 239000012047 saturated solution Substances 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 45
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 40
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 31
- 230000008025 crystallization Effects 0.000 claims description 13
- 238000013019 agitation Methods 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 8
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 claims description 6
- 239000010413 mother solution Substances 0.000 claims description 5
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 claims description 3
- LBJNMUFDOHXDFG-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu].[Cu] LBJNMUFDOHXDFG-UHFFFAOYSA-N 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 230000037213 diet Effects 0.000 claims 1
- 235000005911 diet Nutrition 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical class [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 abstract description 7
- 229910001779 copper mineral Inorganic materials 0.000 abstract description 4
- 238000003756 stirring Methods 0.000 abstract description 3
- 239000011550 stock solution Substances 0.000 abstract description 3
- 230000007423 decrease Effects 0.000 abstract description 2
- 241000894007 species Species 0.000 description 13
- 239000000047 product Substances 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 9
- 229910000366 copper(II) sulfate Inorganic materials 0.000 description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 7
- 229910017052 cobalt Inorganic materials 0.000 description 7
- 239000010941 cobalt Substances 0.000 description 7
- 229910052717 sulfur Inorganic materials 0.000 description 7
- 239000011593 sulfur Substances 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 description 4
- 150000001879 copper Chemical class 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 239000012452 mother liquor Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 150000004763 sulfides Chemical class 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 241001417524 Pomacanthidae Species 0.000 description 2
- 239000003929 acidic solution Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 description 2
- 229910052951 chalcopyrite Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910000361 cobalt sulfate Inorganic materials 0.000 description 2
- 229940044175 cobalt sulfate Drugs 0.000 description 2
- KTVIXTQDYHMGHF-UHFFFAOYSA-L cobalt(2+) sulfate Chemical compound [Co+2].[O-]S([O-])(=O)=O KTVIXTQDYHMGHF-UHFFFAOYSA-L 0.000 description 2
- INPLXZPZQSLHBR-UHFFFAOYSA-N cobalt(2+);sulfide Chemical compound [S-2].[Co+2] INPLXZPZQSLHBR-UHFFFAOYSA-N 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 229960004643 cupric oxide Drugs 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052960 marcasite Inorganic materials 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- -1 oxides Chemical class 0.000 description 2
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 2
- 229910052683 pyrite Inorganic materials 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 230000029219 regulation of pH Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000005751 Copper oxide Substances 0.000 description 1
- 241000552118 Cubana Species 0.000 description 1
- 241000024080 Hiera Species 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical compound [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- CYKLGTUKGYURDP-UHFFFAOYSA-L copper;hydrogen sulfate;hydroxide Chemical compound O.[Cu+2].[O-]S([O-])(=O)=O CYKLGTUKGYURDP-UHFFFAOYSA-L 0.000 description 1
- TXWRERCHRDBNLG-UHFFFAOYSA-N cubane Chemical compound C12C3C4C1C1C4C3C12 TXWRERCHRDBNLG-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 230000006326 desulfonation Effects 0.000 description 1
- 238000005869 desulfonation reaction Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000001033 granulometry Methods 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 150000004682 monohydrates Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 230000019635 sulfation Effects 0.000 description 1
- 238000005670 sulfation reaction Methods 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G3/00—Compounds of copper
- C01G3/10—Sulfates
-
- 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
-
- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
-
- 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
Definitions
- Copper Sulfate Pentahydrate is generically the most important chemical compound of copper at industrial level. It has been known since ancient times as "blue vitriol". Most of the other copper salts used for special industrial purposes are prepared from it, such as: other sulfates, oxides, carbonates, chlorides and oxychlorides.
- the method described in the 1943 patent claims a manufacturing process for copper sulfate, from the previous roasting of the sulphides, for their transformation into oxides with air stream and red-hot heating, then they are crushed and subsequently treated with hot or cold sulfuric acid.
- ES156342, 01- i 04-1943 Manufacturing procedure for copper sulfate, Enrique Rivas Hiera.
- the prior roasting of the sulphurized mineral at high temperatures and the reduction in size to later leach the oxidized mineral are relevant.
- the method described in the 1950 American patent to produce copper sulfate first comprises forming a copper mass that is substantially porous throughout, forming said mass of copper particles having a maximum size of approximately 10 inches, keeping said mass submerged at a temperature between 65 and 100 ° C in an aerated solution of copper sulfate and sulfuric acid, the air being continuously introduced into the lower part of the mass.
- the method consists of a hydrometallurgical procedure applied to copper metal, pretreated to decrease its size and improve its provision for transformation to sulfate, the extraction or recovery of copper sulfate is subsequently carried out through the use of liquid solutions.
- the most common purification methods include: distillation, crystallization, extraction, chromatography. In some cases volatile impurities and others can be removed simply by heating.
- the material is dissolved in a suitable solvent, by vigorous stirring and heated to a temperature close to the boiling point, to form a solution close to saturation.
- Copper sulfate production is a widespread technology from oxidized minerals and acidic solutions of mine water; In order for copper sulfate to reach the characteristics of the respective technical standard, it is usually made by purifying and concentrating the leaching solutions by: extraction and re-extraction with organic solvents; As is generally known, this technology is expensive.
- the recirculation process and achievement of the saturated solution can take 3 to 4 hours to reach the Copper content close to 100 gCu / l, between 85.6 and 120.4 gCu / l and therefore the condition required for the maximum generation of the Possible crystals of copper sulfate pentahydrate, at an average temperature between 80 and 100 ° C
- Table N ° 2 shows the chemical analysis carried out on the same head samples that reinforces what has already been indicated, such as the fact that Copper is mostly in an oxidized state (over 90% is Cu ”S” (soluble copper )) for the heads of Medium and High grade. Perhaps, the most worrying situation is the Calcium content, if its concentration is 2.81% in the head mineral, where it could be constituting Calcium carbonate (CaC03), a strongly acid consuming species, but it should be controlled with pH regulation.
- CaC03 Calcium carbonate
- a saturated copper solution is obtained (close to 107 gCu / l and 200 gH2S04 / l, between 85.6 and 120.4gCu / l, and 180 and 220 200 gH2S04 / l).
- Said process of copper dissolution and saturation of the entered solution is carried out at a temperature between 80 and 100 ° C.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CL2019/000003 WO2020142856A1 (es) | 2019-01-11 | 2019-01-11 | Proceso de obtención de sulfato de cobre pentahidratado |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CL2019/000003 WO2020142856A1 (es) | 2019-01-11 | 2019-01-11 | Proceso de obtención de sulfato de cobre pentahidratado |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020142856A1 true WO2020142856A1 (es) | 2020-07-16 |
Family
ID=71521903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CL2019/000003 WO2020142856A1 (es) | 2019-01-11 | 2019-01-11 | Proceso de obtención de sulfato de cobre pentahidratado |
Country Status (1)
Country | Link |
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WO (1) | WO2020142856A1 (es) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES460108A1 (es) * | 1977-06-25 | 1978-05-01 | Incomet S A | Procedimiento para la obtencion de sulfato de cobre de cali-dad comercial. |
MY142428A (en) * | 2007-10-22 | 2010-11-30 | Meridian Recycling Sdn Bhd | Method to manufacture copper sulphate pentahydrate from copper etchant waste |
WO2010149841A1 (en) * | 2009-06-26 | 2010-12-29 | Outotec Oyj | Method for leaching chalcopyrite concentrate |
CN102633293A (zh) * | 2012-05-04 | 2012-08-15 | 昆明理工大学 | 一种多级循环免蒸发硫酸铜精制方法 |
-
2019
- 2019-01-11 WO PCT/CL2019/000003 patent/WO2020142856A1/es active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES460108A1 (es) * | 1977-06-25 | 1978-05-01 | Incomet S A | Procedimiento para la obtencion de sulfato de cobre de cali-dad comercial. |
MY142428A (en) * | 2007-10-22 | 2010-11-30 | Meridian Recycling Sdn Bhd | Method to manufacture copper sulphate pentahydrate from copper etchant waste |
WO2010149841A1 (en) * | 2009-06-26 | 2010-12-29 | Outotec Oyj | Method for leaching chalcopyrite concentrate |
CN102633293A (zh) * | 2012-05-04 | 2012-08-15 | 昆明理工大学 | 一种多级循环免蒸发硫酸铜精制方法 |
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