PL84607B1 - Process for treatment of coal schists for recovery of contained aluminum,iron and potassium[us3484196a] - Google Patents
Process for treatment of coal schists for recovery of contained aluminum,iron and potassium[us3484196a] Download PDFInfo
- Publication number
- PL84607B1 PL84607B1 PL1967119823A PL11982367A PL84607B1 PL 84607 B1 PL84607 B1 PL 84607B1 PL 1967119823 A PL1967119823 A PL 1967119823A PL 11982367 A PL11982367 A PL 11982367A PL 84607 B1 PL84607 B1 PL 84607B1
- Authority
- PL
- Poland
- Prior art keywords
- solution
- sulphate
- precipitate
- potassium
- mixed
- Prior art date
Links
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 28
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 22
- 229910052700 potassium Inorganic materials 0.000 title claims abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 46
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 16
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 title claims description 8
- 239000011591 potassium Substances 0.000 title claims description 8
- 239000003245 coal Substances 0.000 title abstract description 6
- 238000011084 recovery Methods 0.000 title description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000002425 crystallisation Methods 0.000 claims abstract description 48
- 230000008025 crystallization Effects 0.000 claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 18
- 238000005406 washing Methods 0.000 claims abstract description 18
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims abstract description 16
- 229910021653 sulphate ion Inorganic materials 0.000 claims abstract description 10
- 239000002244 precipitate Substances 0.000 claims abstract description 9
- 238000001354 calcination Methods 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims description 67
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 54
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 51
- 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 claims description 29
- 235000019441 ethanol Nutrition 0.000 claims description 27
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 25
- 235000011151 potassium sulphates Nutrition 0.000 claims description 25
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 22
- 239000001120 potassium sulphate Substances 0.000 claims description 20
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 19
- 239000010454 slate Substances 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 16
- 238000009835 boiling Methods 0.000 claims description 14
- 239000000047 product Substances 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 10
- 238000002386 leaching Methods 0.000 claims description 9
- 230000029087 digestion Effects 0.000 claims description 8
- CHKVPAROMQMJNQ-UHFFFAOYSA-M potassium bisulfate Chemical compound [K+].OS([O-])(=O)=O CHKVPAROMQMJNQ-UHFFFAOYSA-M 0.000 claims description 8
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 7
- 239000005569 Iron sulphate Substances 0.000 claims description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 6
- 239000011707 mineral Substances 0.000 claims description 6
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical class [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000002378 acidificating effect Effects 0.000 claims description 4
- 238000005530 etching Methods 0.000 claims description 4
- 238000011437 continuous method Methods 0.000 claims description 3
- 235000015076 Shorea robusta Nutrition 0.000 claims description 2
- 244000166071 Shorea robusta Species 0.000 claims description 2
- 239000011541 reaction mixture Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 229920000715 Mucilage Polymers 0.000 claims 1
- 239000000853 adhesive Substances 0.000 claims 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims 1
- 230000001376 precipitating effect Effects 0.000 claims 1
- 239000013078 crystal Substances 0.000 abstract description 60
- 239000007788 liquid Substances 0.000 abstract description 30
- 239000002253 acid Substances 0.000 abstract description 12
- 239000012452 mother liquor Substances 0.000 abstract description 11
- 238000000605 extraction Methods 0.000 abstract description 5
- 229910052708 sodium Inorganic materials 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 2
- 241000923606 Schistes Species 0.000 abstract 4
- 238000010899 nucleation Methods 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 62
- 239000012530 fluid Substances 0.000 description 20
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 17
- 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 description 13
- 238000006243 chemical reaction Methods 0.000 description 13
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 11
- 238000001704 evaporation Methods 0.000 description 10
- 230000008020 evaporation Effects 0.000 description 10
- 150000003839 salts Chemical class 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- 238000000354 decomposition reaction Methods 0.000 description 7
- 239000007791 liquid phase Substances 0.000 description 6
- 239000010802 sludge Substances 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- 229910052783 alkali metal Inorganic materials 0.000 description 5
- 150000001340 alkali metals Chemical class 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000004821 distillation Methods 0.000 description 4
- 230000036571 hydration Effects 0.000 description 4
- 238000006703 hydration reaction Methods 0.000 description 4
- 235000010755 mineral Nutrition 0.000 description 4
- 229910000343 potassium bisulfate Inorganic materials 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 239000007790 solid phase Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910052936 alkali metal sulfate Inorganic materials 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 241001274216 Naso Species 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 239000003929 acidic solution Substances 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 238000010908 decantation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000005457 ice water Substances 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 229910017344 Fe2 O3 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229940103272 aluminum potassium sulfate Drugs 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000012223 aqueous fraction Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000011067 equilibration Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 238000001640 fractional crystallisation Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- 210000001161 mammalian embryo Anatomy 0.000 description 1
- -1 ore Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011833 salt mixture Substances 0.000 description 1
- 239000011555 saturated liquid Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/68—Aluminium compounds containing sulfur
- C01F7/74—Sulfates
- C01F7/743—Preparation from silicoaluminious materials, e.g. clays or bauxite
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
- C01D5/02—Preparation of sulfates from alkali metal salts and sulfuric acid or bisulfates; Preparation of bisulfates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/20—Preparation of aluminium oxide or hydroxide from aluminous ores using acids or salts
- C01F7/26—Preparation of aluminium oxide or hydroxide from aluminous ores using acids or salts with sulfuric acids or sulfates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/06—Ferric oxide [Fe2O3]
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Dispersion Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Compounds Of Iron (AREA)
- Extraction Or Liquid Replacement (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Removal Of Specific Substances (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR56338A FR1519532A (fr) | 1966-04-04 | 1966-04-04 | Procédé de valorisation des schistes houillers sans calcination |
| FR56337A FR1519531A (fr) | 1966-04-04 | 1966-04-04 | Procédé de valorisation des schistes houillers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL84607B1 true PL84607B1 (en) | 1976-04-30 |
Family
ID=26169715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL1967119823A PL84607B1 (en) | 1966-04-04 | 1967-04-03 | Process for treatment of coal schists for recovery of contained aluminum,iron and potassium[us3484196a] |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US3484196A (forum.php) |
| AT (1) | AT273886B (forum.php) |
| BE (1) | BE696564A (forum.php) |
| CH (1) | CH476093A (forum.php) |
| CS (1) | CS151450B2 (forum.php) |
| DE (1) | DE1592156C3 (forum.php) |
| ES (1) | ES338825A1 (forum.php) |
| GB (1) | GB1187842A (forum.php) |
| GR (1) | GR33604B (forum.php) |
| LU (1) | LU53338A1 (forum.php) |
| NL (1) | NL162883C (forum.php) |
| PL (1) | PL84607B1 (forum.php) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1558347A (forum.php) * | 1967-10-25 | 1969-02-28 | ||
| FR2329591A1 (fr) * | 1975-10-28 | 1977-05-27 | Pechiney Aluminium | Procede d'extraction d'un sulfate d'aluminium a partir d'une solution impure en contenant |
| US4171205A (en) * | 1976-10-19 | 1979-10-16 | Aluminium Pechiney | Process for obtaining an aluminum sulfate hydrate from an impure sulfuric acid solution of aluminum sulfate |
| FR2426018A1 (fr) * | 1978-05-18 | 1979-12-14 | Pechiney Aluminium | Procede d'obtention d'alumine pure par attaque chlorhydrique de minerais alumineux et extraction des impuretes par un traitement sulfurique |
| FR2426019A1 (fr) * | 1978-05-18 | 1979-12-14 | Pechiney Aluminium | Procede continu d'obtention d'alumine pure a partir d'une liqueur acide provenant de l'attaque chlorosulfurique d'un minerai alumineux et de purification de la liqueur debarrassee de l'alumine |
| US4695290A (en) * | 1983-07-26 | 1987-09-22 | Integrated Carbons Corporation | Integrated coal cleaning process with mixed acid regeneration |
| US4753033A (en) * | 1985-03-24 | 1988-06-28 | Williams Technologies, Inc. | Process for producing a clean hydrocarbon fuel from high calcium coal |
| WO1989004811A1 (en) * | 1987-11-24 | 1989-06-01 | Northern States Power Company | Method for the processing of fly ash, scrubber sludge and the like; and products recovered therefrom |
| US5019360A (en) * | 1987-11-24 | 1991-05-28 | Northern States Power Company | Method for the processing of fly ash, scrubber sludge and the like; and product |
| USD497275S1 (en) | 2003-10-06 | 2004-10-19 | Debra Williams | Built-in wall cabinet |
| CN112919512B (zh) * | 2021-03-01 | 2023-06-30 | 贵州遵义金山磨料有限公司 | 一种利用棕刚玉除尘灰制备氧化铝和硫酸钾的方法 |
| CN117003270B (zh) * | 2023-08-25 | 2025-03-18 | 龙南市祥安材料有限公司 | 一种高岭土除铁云母渣的综合利用方法 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2402668A (en) * | 1942-04-24 | 1946-06-25 | Paul S Roller | Purification of aluminum sulphate |
| US3078146A (en) * | 1960-05-27 | 1963-02-19 | North American Coal Corp | Method of preparing aluminum sulfate from waste sulfate pickle liquor and aluminum ore |
| FR1430890A (fr) * | 1964-06-26 | 1966-03-11 | Pechiney Prod Chimiques Sa | Procédé de préparation de sulfate neutre d'aluminium cristallisé à faible teneur en eau |
-
1967
- 1967-03-21 DE DE1592156A patent/DE1592156C3/de not_active Expired
- 1967-04-03 GR GR670133604A patent/GR33604B/el unknown
- 1967-04-03 AT AT317867A patent/AT273886B/de active
- 1967-04-03 LU LU53338D patent/LU53338A1/xx unknown
- 1967-04-03 GB GB05126/67A patent/GB1187842A/en not_active Expired
- 1967-04-03 NL NL6704701.A patent/NL162883C/xx not_active IP Right Cessation
- 1967-04-03 PL PL1967119823A patent/PL84607B1/pl unknown
- 1967-04-03 ES ES338825A patent/ES338825A1/es not_active Expired
- 1967-04-03 CS CS2376A patent/CS151450B2/cs unknown
- 1967-04-04 BE BE696564D patent/BE696564A/xx not_active IP Right Cessation
- 1967-04-04 CH CH470367A patent/CH476093A/fr not_active IP Right Cessation
-
1969
- 1969-12-15 US US626813A patent/US3484196A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CS151450B2 (forum.php) | 1973-10-19 |
| GB1187842A (en) | 1970-04-15 |
| DE1592156C3 (de) | 1978-06-29 |
| AT273886B (de) | 1969-08-25 |
| LU53338A1 (forum.php) | 1967-11-03 |
| DE1592156B2 (de) | 1977-11-10 |
| ES338825A1 (es) | 1968-08-16 |
| GR33604B (el) | 1967-12-22 |
| NL6704701A (forum.php) | 1967-10-05 |
| DE1592156A1 (de) | 1970-10-22 |
| BE696564A (forum.php) | 1967-10-04 |
| US3484196A (en) | 1969-12-16 |
| NL162883C (nl) | 1980-07-15 |
| CH476093A (fr) | 1969-07-31 |
| NL162883B (nl) | 1980-02-15 |
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