CS208086B1 - Method of extraction the aluminium in the form of aluminum sulphate from the acidic solutions or pulps originating by hydrochemical extraction of the ores - Google Patents
Method of extraction the aluminium in the form of aluminum sulphate from the acidic solutions or pulps originating by hydrochemical extraction of the ores Download PDFInfo
- Publication number
- CS208086B1 CS208086B1 CS78680A CS78680A CS208086B1 CS 208086 B1 CS208086 B1 CS 208086B1 CS 78680 A CS78680 A CS 78680A CS 78680 A CS78680 A CS 78680A CS 208086 B1 CS208086 B1 CS 208086B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- aluminum
- alum
- extraction
- hydrochemical
- solutions
- Prior art date
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims description 11
- 238000000605 extraction Methods 0.000 title claims description 9
- BUACSMWVFUNQET-UHFFFAOYSA-H dialuminum;trisulfate;hydrate Chemical compound O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BUACSMWVFUNQET-UHFFFAOYSA-H 0.000 title claims description 8
- 239000003929 acidic solution Substances 0.000 title claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title description 3
- 239000004411 aluminium Substances 0.000 title 1
- 239000000243 solution Substances 0.000 claims description 21
- -1 aluminum ions Chemical class 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 150000001768 cations Chemical class 0.000 claims description 7
- 238000010828 elution Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 5
- 235000006085 Vigna mungo var mungo Nutrition 0.000 claims description 5
- 240000005616 Vigna mungo var. mungo Species 0.000 claims description 5
- 229940037003 alum Drugs 0.000 claims description 5
- 239000013078 crystal Substances 0.000 claims description 5
- 238000005979 thermal decomposition reaction Methods 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 claims description 4
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 235000011124 aluminium ammonium sulphate Nutrition 0.000 claims description 3
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 3
- LCQXXBOSCBRNNT-UHFFFAOYSA-K ammonium aluminium sulfate Chemical compound [NH4+].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O LCQXXBOSCBRNNT-UHFFFAOYSA-K 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 239000011541 reaction mixture Substances 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 2
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 239000007790 solid phase Substances 0.000 claims description 2
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 2
- 239000002918 waste heat Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims 1
- 235000011130 ammonium sulphate Nutrition 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000002386 leaching Methods 0.000 description 6
- 229910052770 Uranium Inorganic materials 0.000 description 5
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- CHRJZRDFSQHIFI-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;styrene Chemical class C=CC1=CC=CC=C1.C=CC1=CC=CC=C1C=C CHRJZRDFSQHIFI-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Description
Vynález se týká způsobu získávání hliníku ve formě síranu hlinitého z kyselých roztoků nebo rmutů vznikajících pri hydrochemické těžbě rud.The invention relates to a process for obtaining aluminum in the form of aluminum sulphate from acidic solutions or mashes produced by hydrochemical ore mining.
Dosud se při hydrochemických metodách těžby kovů, například při loužení uranových rud, neprovádí separace hliníku, který bývá ve výluzích obsažen v poměrně vysoké koncentraci. Naopak v některých případech, kdy se loužicích roztoků používá opakovaně, představují hlinité soli nepříjemný balast, který komplikuje těžbu primární složky. K této situaci dochází například při podzemním loužení uranových rud, kdy se provádí plná recirkulace loužicích roztoků po separaci uranu a doplnění loužicími chemikáliemi.So far, the separation of aluminum, which is present in relatively high concentrations in extracts, has not been carried out in hydrochemical methods of metal mining, for example in the leaching of uranium ores. Conversely, in some cases where leach solutions are used repeatedly, aluminum salts are an unpleasant ballast that complicates the extraction of the primary component. This situation occurs, for example, in the underground leaching of uranium ores, where the leaching solutions are fully recirculated after the uranium separation and replenished with leaching chemicals.
Nárůst solnosti loužicích roztoků, způsobený především hlinitými solemi, snižuje rychlost louže- ! ní v podzemí a komplikuje separaci nalouženého uranu v povrchových procesech.The increase in salinity of the leaching solutions, mainly due to the aluminum salts, reduces the puddle rate! underground and complicates the separation of uranium in surface processes.
Síran hlinitý se vyrábí zpravidla reakcí koncentrované kyseliny sírové se suspenzí kysličníku resp. hydrátu hlinitého, takže se jedná o poměrně nákladnou výrobu zejména s ohledem na energeticky dosti náročnou výrobu kysličníku resp. hydrátu hlinitého.Aluminum sulphate is generally produced by reacting concentrated sulfuric acid with an oxide suspension or a sulfuric acid suspension. aluminum hydrate, so that it is a relatively expensive production, especially with regard to the energy-intensive production of oxide respectively. aluminum hydrate.
Uvedené nevýhody značně omezuje způsob získávám hliníku ve formě síranu hlinitého z kyselých roztoků nebo rmutů vznikajících pri hydrochemické těžbě rud, jehož podstata spočívá v tom, že hlinité ionty se z těchto roztoků nebo rmutů zachycují sorpcí na kyselém měniči kationtů v rozmezí hodnot pH 0 až pH 4. Následovně se eluují roztokem obsahujícím síranové a amonné ionty s nimiž hlinité ionty vytvářejí pevnou fázi krystalů kamence hlinito-amonného NH4A1(SO4)2 . 12 H2O, který se po oddělení z reakční směsi podrobí tepelnému rozkladu pri teplotě 500 °C až 650 °C za vzniku síranu hlinitého, přičemž plynné produkty rozkladu, čpavek a kysličník sírový se zriovu použijí k přípravě elučního roztoku.These disadvantages are greatly reduced by the process of obtaining aluminum sulfate in the form of aluminum sulphate from acidic solutions or mashes resulting from hydrochemical ore extraction, which is based on the fact that aluminum ions are trapped from these solutions or mashes by sorption on an acidic cation exchanger in the pH range 4. They are then eluted with a solution containing sulphate and ammonium ions with which the aluminum ions form a solid phase of the ammonium alum ammonium alumina crystals NH 4 A1 (SO 4 ) 2 . 12 H 2 O which, after separation from the reaction mixture, is subjected to thermal decomposition at 500 ° C to 650 ° C to form aluminum sulphate, the gaseous products of decomposition, ammonia and sulfur trioxide being used to prepare the elution solution.
Způsobem podle vynálezu se komplexněji využijí roztoky získané pri hydrochemické těžbě rud a současně se zlepší vlastnosti těchto roztoků pro případné další použití. Odpadní teplo získané chlazením produktů tepelného rozkladu kamence hlinito-amonného lze použít k ohřevu roztoků hydrochemické těžby.The process according to the invention utilizes the solutions obtained in hydrochemical ore extraction in a more complex manner and at the same time improves the properties of these solutions for possible further use. The waste heat obtained by cooling the thermal decomposition products of alumina alum can be used to heat the hydrochemical extraction solutions.
Výroba síranu hlinitého způsobem podle vynálezu je ekonomicky velmi výhodná, protože prakticky nevyžaduje žádné další suroviny než ty, které jižThe production of aluminum sulphate by the process according to the invention is very economically advantageous since it practically requires no other raw materials than those already existing
208 088 byly použity pro těžbu primárního kovu. Odpadá tím potřeba kysličníku hlinitého jehož výroba je energeticky dosti náročná a vyžaduje použití bauxitu, kterého je nedostatek.208 088 were used for mining of primary metal. This eliminates the need for alumina whose production is quite energy intensive and requires the use of bauxite, which is inadequate.
Další výhodou tohoto vynálezu je, že omezuje potřebu neutralizačního činidla při konečné likvidaci roztoků podzemní hydrochemické těžby.A further advantage of the present invention is that it reduces the need for a neutralizing agent in the final disposal of underground hydrochemical extraction solutions.
Vynález lze použít všude tam, kde se získávají kovy hydrochemickým loužením kyselými roztoky, přičemž získaný výluh obsahuje hlinité ionty.The invention can be used wherever metals are obtained by hydrochemical leaching with acidic solutions, the leachate obtained contains aluminum ions.
PříkladExample
Kyselý roztok po sorpci uranu o koncentraci hlinitých iontů 4 g/1 je veden do kolony s náplní silně kyselého měniče kationtů typu sulfonovaný styrendivinylbenzen, kde se obsah hlinitých iontů v roztoku sníží na 0,6 g/1. Měnič kationtůThe acid solution after uranium sorption with an aluminum ion concentration of 4 g / l is fed to a column with a strongly acidic cation exchanger of the sulfonated styrene divinylbenzene type, where the aluminum ion content of the solution is reduced to 0.6 g / l. Cation exchanger
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS78680A CS208086B1 (en) | 1980-02-06 | 1980-02-06 | Method of extraction the aluminium in the form of aluminum sulphate from the acidic solutions or pulps originating by hydrochemical extraction of the ores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS78680A CS208086B1 (en) | 1980-02-06 | 1980-02-06 | Method of extraction the aluminium in the form of aluminum sulphate from the acidic solutions or pulps originating by hydrochemical extraction of the ores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS208086B1 true CS208086B1 (en) | 1981-08-31 |
Family
ID=5340622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS78680A CS208086B1 (en) | 1980-02-06 | 1980-02-06 | Method of extraction the aluminium in the form of aluminum sulphate from the acidic solutions or pulps originating by hydrochemical extraction of the ores |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS208086B1 (en) |
-
1980
- 1980-02-06 CS CS78680A patent/CS208086B1/en unknown
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