CH619272A5 - Process for the thermal decomposition of cyanide in spent cathode linings of aluminium pots. - Google Patents
Process for the thermal decomposition of cyanide in spent cathode linings of aluminium pots. Download PDFInfo
- Publication number
- CH619272A5 CH619272A5 CH808076A CH808076A CH619272A5 CH 619272 A5 CH619272 A5 CH 619272A5 CH 808076 A CH808076 A CH 808076A CH 808076 A CH808076 A CH 808076A CH 619272 A5 CH619272 A5 CH 619272A5
- Authority
- CH
- Switzerland
- Prior art keywords
- solvent
- bath
- dyeing
- finishing
- liquid fraction
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 22
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical group N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 title 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title 1
- 229910052782 aluminium Inorganic materials 0.000 title 1
- 239000004411 aluminium Substances 0.000 title 1
- 238000005979 thermal decomposition reaction Methods 0.000 title 1
- 239000002904 solvent Substances 0.000 claims description 51
- 238000004043 dyeing Methods 0.000 claims description 33
- 239000007788 liquid Substances 0.000 claims description 32
- 239000003085 diluting agent Substances 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 16
- 239000007791 liquid phase Substances 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 8
- 239000012808 vapor phase Substances 0.000 claims description 8
- 238000009835 boiling Methods 0.000 claims description 7
- 238000010533 azeotropic distillation Methods 0.000 claims description 2
- 238000002425 crystallisation Methods 0.000 claims description 2
- 230000008025 crystallization Effects 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- 229920002994 synthetic fiber Polymers 0.000 claims description 2
- 239000004758 synthetic textile Substances 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 claims 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 33
- 239000000975 dye Substances 0.000 description 29
- 238000011282 treatment Methods 0.000 description 20
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 14
- 239000004753 textile Substances 0.000 description 14
- 239000004744 fabric Substances 0.000 description 11
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 10
- 229950011008 tetrachloroethylene Drugs 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 8
- 238000009833 condensation Methods 0.000 description 8
- 230000005494 condensation Effects 0.000 description 8
- 238000005070 sampling Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000000926 separation method Methods 0.000 description 7
- 238000009834 vaporization Methods 0.000 description 7
- 230000008016 vaporization Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 229940098465 tincture Drugs 0.000 description 6
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 229960000583 acetic acid Drugs 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000005282 brightening Methods 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000002917 insecticide Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 239000010979 ruby Substances 0.000 description 2
- 229910001750 ruby Inorganic materials 0.000 description 2
- 239000006200 vaporizer Substances 0.000 description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical class C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- GWEHVDNNLFDJLR-UHFFFAOYSA-N 1,3-diphenylurea Chemical compound C=1C=CC=CC=1NC(=O)NC1=CC=CC=C1 GWEHVDNNLFDJLR-UHFFFAOYSA-N 0.000 description 1
- MHOFGBJTSNWTDT-UHFFFAOYSA-M 2-[n-ethyl-4-[(6-methoxy-3-methyl-1,3-benzothiazol-3-ium-2-yl)diazenyl]anilino]ethanol;methyl sulfate Chemical compound COS([O-])(=O)=O.C1=CC(N(CCO)CC)=CC=C1N=NC1=[N+](C)C2=CC=C(OC)C=C2S1 MHOFGBJTSNWTDT-UHFFFAOYSA-M 0.000 description 1
- 229920001747 Cellulose diacetate Polymers 0.000 description 1
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
- 239000000980 acid dye Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000001045 blue dye Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- FOCAUTSVDIKZOP-UHFFFAOYSA-N chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 description 1
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 235000019239 indanthrene blue RS Nutrition 0.000 description 1
- UHOKSCJSTAHBSO-UHFFFAOYSA-N indanthrone blue Chemical compound C1=CC=C2C(=O)C3=CC=C4NC5=C6C(=O)C7=CC=CC=C7C(=O)C6=CC=C5NC4=C3C(=O)C2=C1 UHOKSCJSTAHBSO-UHFFFAOYSA-N 0.000 description 1
- 239000003701 inert diluent Substances 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000001044 red dye Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 125000005270 trialkylamine group Chemical group 0.000 description 1
- 210000002268 wool Anatomy 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)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Coloring (AREA)
- Processing Of Solid Wastes (AREA)
- Electrolytic Production Of Metals (AREA)
- Manufacture And Refinement 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 |
|---|---|
| CH619272A5 true CH619272A5 (en) | 1980-09-15 |
Family
ID=3570204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH808076A CH619272A5 (en) | 1975-06-27 | 1976-06-24 | Process for the thermal decomposition of cyanide in spent cathode linings of aluminium pots. |
Country Status (6)
| Country | Link |
|---|---|
| AT (1) | AT341238B (en, 2012) |
| CH (1) | CH619272A5 (en, 2012) |
| DE (1) | DE2628192A1 (en, 2012) |
| FR (1) | FR2317224A1 (en, 2012) |
| IT (1) | IT1066251B (en, 2012) |
| NO (1) | NO144956C (en, 2012) |
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 (en, 2012) * | 1973-05-10 | 1974-11-05 | ||
| JPS5137059B2 (en, 2012) * | 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 CH CH808076A patent/CH619272A5/fr not_active IP Right Cessation
- 1976-06-24 NO NO762191A patent/NO144956C/no unknown
- 1976-06-25 FR FR7619338A patent/FR2317224A1/fr active Granted
- 1976-06-25 IT IT50178/76A patent/IT1066251B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| IT1066251B (it) | 1985-03-04 |
| NO762191L (en, 2012) | 1976-12-28 |
| FR2317224B1 (en, 2012) | 1981-06-19 |
| AT341238B (de) | 1978-01-25 |
| NO144956B (no) | 1981-09-07 |
| ATA494675A (de) | 1977-05-15 |
| DE2628192A1 (de) | 1977-01-20 |
| NO144956C (no) | 1981-12-16 |
| FR2317224A1 (fr) | 1977-02-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |