PL16699B1 - A method of removing iron from clay and kaolins, intended to be processed into metallic aluminum or iron-free aluminum salts. - Google Patents
A method of removing iron from clay and kaolins, intended to be processed into metallic aluminum or iron-free aluminum salts. Download PDFInfo
- Publication number
- PL16699B1 PL16699B1 PL16699A PL1669931A PL16699B1 PL 16699 B1 PL16699 B1 PL 16699B1 PL 16699 A PL16699 A PL 16699A PL 1669931 A PL1669931 A PL 1669931A PL 16699 B1 PL16699 B1 PL 16699B1
- Authority
- PL
- Poland
- Prior art keywords
- iron
- clay
- kaolins
- aluminum
- processed
- Prior art date
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 19
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 title claims description 8
- 229910052742 iron Inorganic materials 0.000 title claims description 8
- 235000012211 aluminium silicate Nutrition 0.000 title claims description 6
- 239000004927 clay Substances 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims description 4
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 150000002506 iron compounds Chemical class 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
Description
Zagadnienie przeróbki gliny i kaolinów na glin metaliczny i wolne od zelaza sole glinowe bylo juz przedmiotem wielu stu- djów, prac naukowych i patentów, dotych¬ czas nie zostalo jednak rozwiazane w spo¬ sób zadowalajacy.Jedna z glównych przyczyn trudnosci rozwiazania tego zagadnienia sprawia obec¬ nosc pewnej wiekszej lub mniejszej zawar¬ tosci zelaza w glinach i kaolinach i zwiaza¬ nej z tern trudnosci usuniecia go, nie moz¬ na tu bowiem ze wzgledu na znaczna za¬ wartosc krzemionki zastosowac dla rozkla¬ du glin metody alkalicznej, która, jak wia¬ domo, z latwoscia pozwala na oddzielanie zelaza od glinu. Wedlug wszystkich zas in¬ nych znanych sposobów przeróbki gliny nie mozna usunac zwiazków zelaza w ilosci do¬ statecznej i niestety towarzyszy ono zawsze zwiazkom glinu, uniemozliwiajac otrzymy¬ wanie zarówno soli glinowych, jak i glinu metalicznego, wolnych od zwiazków zelaza.Okazalo sie, ze mozna calkowicie poko¬ nac trudnosci powyzsze, usuwajac zwiazki zelaza z wyprazonych glin i kaolinów za- pomoca chlorowodoru.Jezeli mianowicie wyprazona gline lub kaolin, do których dodano potrzebna ilosc wegla, poddac w wysokiej temperaturze, bliskiej 900^C, dzialaniu gazowego chloro¬ wodoru, to cala ilosc zelaza ulotni sie w po¬ staci par chlorku zelaza, tlenek glinu zaspozostanie nienaruszony w pozostalosci. W 'ten sposób otrzyma sie produkt calkowicie wolriy od zelaza lub zawierajacy tak nie¬ znaczne slady zelaza, ze nie moga stanowic juz przeszkody w wytwarzaniu czyto glinu metalicznego, czyto soli glinowych, prak¬ tycznie wolnych od zelaza. Nadmiar chlo¬ rowodoru, uzyty do reakcji, absorbuje sie w kwasie solnym.Produkt otrzymany, zawierajacy tlenki krzemu i glinu, mozna poddac badz dziala¬ niu kwasów, by przerobic go na odpowied¬ nie sole glinowe do bezposredniego uzytku przemyslowego, wzglednie do dalszego prze¬ robu na glin metaliczny, badz tez poddac prcdukt ten w mieszaninie z weglem dzia¬ laniu chloru i otrzymac chlorek glinowy.Chlorek glinowy mozna przerobic jednym ze znanych sposobów na tlenek glinu, wzglednie w mieszaninie z chlorkiem sodu poddac elektrolizie, cerem otrzymania gli¬ nu metalicznego.Przyklad. Do 20 kg zawierajacego 18,8 kg Al20, i 1 kg Fe203 dodano 0,9 kg we¬ gla i poddano prazeniu w temperaturze 890° w strumieniu chlorowodoru w ciagu paru godzin. Znaleziono w pozostalosci po reakcji 18,3 kg A/203 i 0,013 kg (1,3 g) Fe203.Otrzymano zatem produkt zawierajacy tylko 0,07^ Fe20, podczas gdy produkt wyjsciowy zawieral 5% tlenku zelaza. PLThe problem of the processing of clay and kaolin into metallic clay and iron-free aluminum salts has already been the subject of many studies, scientific works and patents, but so far it has not been solved in a satisfactory way. There is a certain greater or lesser iron content in clays and kaolins and the difficulty of removing it, because, due to the high content of silica, it is not possible to use the alkaline method for decomposing clays, which, as As is known, it easily separates iron from aluminum. According to all other known methods of clay processing, the iron compounds cannot be removed in a sufficient amount and, unfortunately, it always accompanies the aluminum compounds, making it impossible to obtain both aluminum salts and metal aluminum salts, free of iron compounds. the above difficulties can be completely overcome by removing the iron compounds from the calcined clays and kaolins with the use of hydrogen chloride. while all the iron will evaporate as iron chloride vapors, the alumina will remain intact in the residue. In this way, a product will be obtained that is completely iron free or contains such slight traces of iron that it can no longer be an obstacle to the production of purely metallic aluminum, or virtually iron-free aluminum salts. The excess hydrogen chloride used for the reaction is absorbed in hydrochloric acid. The obtained product, containing silicon and aluminum oxides, can be treated or treated with acids in order to convert it into suitable aluminum salts for direct industrial use or further processing. Alumina can be converted into aluminum oxide by one of the known methods, or in a mixture with sodium chloride, subjected to electrolysis, a ceremony to obtain aluminum chloride. metallic. To 20 kg containing 18.8 kg of Al 2 O and 1 kg of Fe 2 O 3, 0.9 kg of coal was added and calcined at 890 ° in a stream of hydrogen chloride for several hours. 18.3 kg A / 203 and 0.013 kg (1.3 g) Fe 2 O 3 were found in the reaction residue. A product containing only 0.07 µ Fe 2 O 3 was thus obtained, whereas the starting product contained 5% iron oxide. PL
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL16699B1 true PL16699B1 (en) | 1932-08-31 |
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