DE2628192A1 - Verfahren zur beseitigung von cyanid in verbrauchten kathodenauskleidungen von aluminiumelektrolysezellen unter besonderer beruecksichtigung der fluoridrueckgewinnung - Google Patents
Verfahren zur beseitigung von cyanid in verbrauchten kathodenauskleidungen von aluminiumelektrolysezellen unter besonderer beruecksichtigung der fluoridrueckgewinnungInfo
- Publication number
- DE2628192A1 DE2628192A1 DE19762628192 DE2628192A DE2628192A1 DE 2628192 A1 DE2628192 A1 DE 2628192A1 DE 19762628192 DE19762628192 DE 19762628192 DE 2628192 A DE2628192 A DE 2628192A DE 2628192 A1 DE2628192 A1 DE 2628192A1
- Authority
- DE
- Germany
- Prior art keywords
- cyanide
- coal
- thermal treatment
- electrolysis cells
- soil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 title claims description 25
- 238000000034 method Methods 0.000 title claims description 17
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 title claims description 5
- 238000005868 electrolysis reaction Methods 0.000 title claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 4
- 229910052782 aluminium Inorganic materials 0.000 title claims description 4
- 238000011084 recovery Methods 0.000 title description 3
- 239000003245 coal Substances 0.000 claims description 21
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 239000002689 soil Substances 0.000 claims description 10
- 238000007669 thermal treatment Methods 0.000 claims description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 230000015556 catabolic process Effects 0.000 claims 1
- 238000006731 degradation reaction Methods 0.000 claims 1
- 150000002825 nitriles Chemical class 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 6
- 238000001784 detoxification Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000000137 annealing Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical group F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 150000002222 fluorine compounds Chemical class 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011775 sodium fluoride Substances 0.000 description 3
- 235000013024 sodium fluoride Nutrition 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- NAVJNPDLSKEXSP-UHFFFAOYSA-N Fe(CN)2 Chemical class N#C[Fe]C#N NAVJNPDLSKEXSP-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910001610 cryolite Inorganic materials 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 2
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- ISXLKWQYNMXUMH-UHFFFAOYSA-N 1,3-diazinane-2,4,6-trione;pyridine Chemical compound C1=CC=NC=C1.O=C1CC(=O)NC(=O)N1 ISXLKWQYNMXUMH-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- CAVCGVPGBKGDTG-UHFFFAOYSA-N alumanylidynemethyl(alumanylidynemethylalumanylidenemethylidene)alumane Chemical compound [Al]#C[Al]=C=[Al]C#[Al] CAVCGVPGBKGDTG-UHFFFAOYSA-N 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001722 carbon compounds Chemical class 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- KXZJHVJKXJLBKO-UHFFFAOYSA-N chembl1408157 Chemical compound N=1C2=CC=CC=C2C(C(=O)O)=CC=1C1=CC=C(O)C=C1 KXZJHVJKXJLBKO-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- JFBJUMZWZDHTIF-UHFFFAOYSA-N chlorine chlorite Inorganic materials ClOCl=O JFBJUMZWZDHTIF-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000003895 groundwater pollution Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000002506 iron compounds Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 238000006257 total synthesis reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Processing Of Solid Wastes (AREA)
- Coloring (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT494675A AT341238B (de) | 1975-06-27 | 1975-06-27 | Verfahren zum thermischen cyanid-abbau verbrauchter kathodenauskleidungen von aluminiumelektrolysezellen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2628192A1 true DE2628192A1 (de) | 1977-01-20 |
Family
ID=3570204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19762628192 Withdrawn DE2628192A1 (de) | 1975-06-27 | 1976-06-23 | Verfahren zur beseitigung von cyanid in verbrauchten kathodenauskleidungen von aluminiumelektrolysezellen unter besonderer beruecksichtigung der fluoridrueckgewinnung |
Country Status (6)
| Country | Link |
|---|---|
| AT (1) | AT341238B (enExample) |
| CH (1) | CH619272A5 (enExample) |
| DE (1) | DE2628192A1 (enExample) |
| FR (1) | FR2317224A1 (enExample) |
| IT (1) | IT1066251B (enExample) |
| NO (1) | NO144956C (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2157418C2 (ru) * | 1997-08-27 | 2000-10-10 | Акционерное общество открытого типа "Всероссийский алюминиево-магниевый институт" | Способ обезвреживания отработанной цианидсодержащей угольной футеровки алюминиевых электролизеров |
| CN111747395B (zh) * | 2020-07-07 | 2021-03-19 | 昆明理工大学 | 一种铝电解废阴极微波焙烧-水热碱浸深度除氟的方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD109365A1 (enExample) * | 1973-05-10 | 1974-11-05 | ||
| JPS5137059B2 (enExample) * | 1973-11-19 | 1976-10-13 |
-
1975
- 1975-06-27 AT AT494675A patent/AT341238B/de not_active IP Right Cessation
-
1976
- 1976-06-23 DE DE19762628192 patent/DE2628192A1/de not_active Withdrawn
- 1976-06-24 NO NO762191A patent/NO144956C/no unknown
- 1976-06-24 CH CH808076A patent/CH619272A5/fr not_active IP Right Cessation
- 1976-06-25 IT IT50178/76A patent/IT1066251B/it active
- 1976-06-25 FR FR7619338A patent/FR2317224A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| NO144956B (no) | 1981-09-07 |
| NO144956C (no) | 1981-12-16 |
| FR2317224B1 (enExample) | 1981-06-19 |
| NO762191L (enExample) | 1976-12-28 |
| AT341238B (de) | 1978-01-25 |
| ATA494675A (de) | 1977-05-15 |
| FR2317224A1 (fr) | 1977-02-04 |
| CH619272A5 (en) | 1980-09-15 |
| IT1066251B (it) | 1985-03-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8141 | Disposal/no request for examination |