PL9503B1 - Method for obtaining aluminum chloride from iron. - Google Patents
Method for obtaining aluminum chloride from iron. Download PDFInfo
- Publication number
- PL9503B1 PL9503B1 PL9503A PL950327A PL9503B1 PL 9503 B1 PL9503 B1 PL 9503B1 PL 9503 A PL9503 A PL 9503A PL 950327 A PL950327 A PL 950327A PL 9503 B1 PL9503 B1 PL 9503B1
- Authority
- PL
- Poland
- Prior art keywords
- aluminum
- iron
- solution
- aluminum chloride
- salts
- Prior art date
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- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title description 17
- 229910052742 iron Inorganic materials 0.000 title description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 235000012211 aluminium silicate Nutrition 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 3
- 159000000014 iron salts Chemical class 0.000 claims description 3
- 150000002505 iron Chemical class 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000007800 oxidant agent Substances 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims 1
- 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 1
- 239000000126 substance Substances 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 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 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 235000014413 iron hydroxide Nutrition 0.000 description 1
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
Description
Dotychczas jedynym materjalem wyjs¬ ciowym do otrzymywania tlenku glinu, niezbednego do fabrykacji glinu metalicz¬ nego, jak równiez do otrzymywania wodo¬ rotlenku glinowego, uzywanego do fabry¬ kacji siarczanu glinowego, wolnego od ze¬ laza, jest mineral bauksyt, spotykany w niektórych tylko krajach. Oddawma wiec podejmowano próby zastosowania, jako materjalu wyjsciowego, zarówno przy fa¬ brykacji glinu metalicznego, jak i przy fa¬ brykacji wolnych od zelaza soli glino¬ wych — kaolinu, wzglednie lepszych ga¬ tunków glin. Próby dotychczasowe nie do¬ prowadzily do wyników pozadanych, ze wzgledu na wielkie trudnosci oddzielenia zelaza, zawartego w dosc znacznych ilo¬ sciach w kaolinach i w glinach.Przedmiotem niniejszego patentu jest sposób otrzymywania stezonego roztworu chlorku glinowego, wolnego od zelaza, który nastepnie róznemi sposobami latwo daje sie przerobic na tlenek, wzglednie wodorotlenek glinowy. Tak np. mozna o trzymac wodorotlenek glin/u z roztworu chlorku glinowego przez stracenie amonja¬ kiem, 'przyczem z otrzymanego chlorku amonu mozna zpowrotem regenerowac a- monjak. Mozna rówtniez przez odparowa¬ nie wytworzonego chlorku glinowego i ogrzewanie do wysokiej temperatury rozlozyc go, otrzymujac tlenek i kwas sol¬ ny, który wraca zpowrotem do procesu.Postepowanie, bedace przedmiotem wynalazku, polega na prazeniu kaolinu, wzglednie gliny, do temperatur powyzej 500° C, w których to temperaturach na¬ stepuje rozklad; 'produktem tego rozkladujest tlenek glinu, który daje sie z latwo¬ scia rozpuszczac w kwasie solnym. Droga dzialania kwasu solcnego przeprowadza sie glin do roztworu, przyczein jednak wraz z glinem prizechodzi i zelazo- W ce¬ lu usuniecia tego zelaza, wedlug wyna¬ lazku, traktuje sie roztwór chlorku glino¬ wego straconym wodorotlenkiem glino- r wyAi, pAyczem nastepuje podwójna wy¬ smiana: glin z wodorotlenku glinowego przechodzi do roztworu, natomiast zawar¬ te w roztworze zelazo przechodzi do osa¬ du w postaci wodorotlenku zelazowego.Przed dzialaniem na roztwór wodorotlen¬ kiem glinowym nalezy utlenic zawarte w roztworze sole zelazawe na zelazowe, za- pomoca zwyklych, stosowanych w takich razach srodków utleniajacych, jak kwas a- zotowy, woda utleniona i podobne substan¬ cje. Droga ta otrzymuje sie roztwór chlor¬ ku glinowego, zawierajacy jedynie mini¬ malne slady zelaza, dzieki czemu uzysku¬ je sie w dalszych operacjach wodorotlenek glinowy, w zupelnosci nadajacy sie do wy¬ robu glinu metalicznego oraz wolnych od zelaza soli glinowych. Przez zastosowanie wodorotlenku do wytracania zelaza nie wprowadza sie zadnych obcych substancyj. PL PLUntil now, the only starting material for the production of aluminum oxide, necessary for the fabrication of metallic aluminum, as well as for the production of aluminum hydroxide, used in the production of iron-free aluminum sulphate, is the mineral bauxite, found in some only countries. Therefore, attempts have been made to use, as a starting material, both in the production of metallic aluminum and in the production of iron-free aluminum salts - kaolin, or relatively better grades of aluminum. Attempts to date have not led to the desired results, due to the great difficulty in separating the iron contained in fairly large amounts in kaolins and clays. The subject of this patent is a method of obtaining a concentrated solution of aluminum chloride, free of iron, which can then be easily obtained in various ways. can be converted into oxide or aluminum hydroxide. For example, it is possible to keep the aluminum hydroxide from the aluminum chloride solution by loss with ammonia, while from the obtained ammonium chloride it can be regenerated again as mono. It is also possible to decompose the aluminum chloride produced by evaporating it and heating it to a high temperature, obtaining an oxide and hydrochloric acid, which return to the process. The procedure, which is the subject of the invention, consists in calcining kaolin or clay to temperatures above 500 ° C. C, at which temperatures decomposition occurs; the product of this decomposition is aluminum oxide, which can be easily dissolved in hydrochloric acid. The route of action of hydrochloric acid leads the clay into solution, but the aluminum moves along with the iron and in order to remove this iron, according to the invention, the aluminum chloride solution is treated with the lost aluminum hydroxide, and a double loop occurs Mixture: the aluminum from aluminum hydroxide goes into solution, while the iron contained in the solution passes to the sediment in the form of iron hydroxide. Before treating the solution with aluminum hydroxide, the iron to iron salts in the solution must be oxidized with the usual used in such oxidizing agents as nitric acid, hydrogen peroxide and the like. This route produces an aluminum chloride solution with only minimal traces of iron, thereby obtaining aluminum hydroxide in the downstream operation, completely suitable for the production of aluminum metal and iron-free aluminum salts. By the use of hydroxide for the precipitation of iron, no foreign matter is introduced. PL PL
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL9503B1 true PL9503B1 (en) | 1928-11-30 |
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