CA1062447A - Elimination of odors from organic wastes - Google Patents
Elimination of odors from organic wastesInfo
- Publication number
- CA1062447A CA1062447A CA219,473A CA219473A CA1062447A CA 1062447 A CA1062447 A CA 1062447A CA 219473 A CA219473 A CA 219473A CA 1062447 A CA1062447 A CA 1062447A
- Authority
- CA
- Canada
- Prior art keywords
- solution
- water
- group
- soluble
- odor
- 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.)
- Expired
Links
- 235000019645 odor Nutrition 0.000 title claims abstract description 35
- 239000010815 organic waste Substances 0.000 title claims abstract description 20
- 230000008030 elimination Effects 0.000 title 1
- 238000003379 elimination reaction Methods 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 17
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical class [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 239000007800 oxidant agent Substances 0.000 claims abstract description 8
- 230000001376 precipitating effect Effects 0.000 claims abstract description 8
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical class [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 claims abstract description 7
- 239000002440 industrial waste Substances 0.000 claims abstract description 7
- 239000011260 aqueous acid Substances 0.000 claims abstract description 6
- 230000004060 metabolic process Effects 0.000 claims abstract description 6
- 230000001603 reducing effect Effects 0.000 claims abstract description 6
- 150000002823 nitrates Chemical class 0.000 claims abstract description 5
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 4
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 45
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 239000010865 sewage Substances 0.000 claims description 14
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 claims description 13
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 claims description 12
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 11
- 239000011790 ferrous sulphate Substances 0.000 claims description 11
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 11
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 10
- 229940032296 ferric chloride Drugs 0.000 claims description 10
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 9
- 239000010800 human waste Substances 0.000 claims description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 7
- 239000010828 animal waste Substances 0.000 claims description 7
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 6
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 241001465754 Metazoa Species 0.000 claims description 3
- 229940044631 ferric chloride hexahydrate Drugs 0.000 claims description 3
- 150000004677 hydrates Chemical class 0.000 claims description 3
- 150000002505 iron Chemical class 0.000 claims description 3
- NQXWGWZJXJUMQB-UHFFFAOYSA-K iron trichloride hexahydrate Chemical group O.O.O.O.O.O.[Cl-].Cl[Fe+]Cl NQXWGWZJXJUMQB-UHFFFAOYSA-K 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 26
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 3
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 41
- 239000000047 product Substances 0.000 description 18
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 12
- 239000002253 acid Substances 0.000 description 11
- 239000000126 substance Substances 0.000 description 10
- 239000010802 sludge Substances 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 7
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 7
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 7
- 235000011130 ammonium sulphate Nutrition 0.000 description 7
- 239000007795 chemical reaction product Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 239000011780 sodium chloride Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 210000003608 fece Anatomy 0.000 description 3
- 150000004688 heptahydrates Chemical class 0.000 description 3
- 150000004687 hexahydrates Chemical class 0.000 description 3
- 239000010871 livestock manure Substances 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- 235000011149 sulphuric acid Nutrition 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-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
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000010801 sewage sludge Substances 0.000 description 2
- ZFRKQXVRDFCRJG-UHFFFAOYSA-N skatole Chemical compound C1=CC=C2C(C)=CNC2=C1 ZFRKQXVRDFCRJG-UHFFFAOYSA-N 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- DSSYKIVIOFKYAU-XCBNKYQSSA-N (R)-camphor Chemical compound C1C[C@@]2(C)C(=O)C[C@@H]1C2(C)C DSSYKIVIOFKYAU-XCBNKYQSSA-N 0.000 description 1
- WWJLCYHYLZZXBE-UHFFFAOYSA-N 5-chloro-1,3-dihydroindol-2-one Chemical compound ClC1=CC=C2NC(=O)CC2=C1 WWJLCYHYLZZXBE-UHFFFAOYSA-N 0.000 description 1
- 241000370685 Arge Species 0.000 description 1
- 241000723346 Cinnamomum camphora Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- KGEKLUUHTZCSIP-UHFFFAOYSA-N Isobornyl acetate Natural products C1CC2(C)C(OC(=O)C)CC1C2(C)C KGEKLUUHTZCSIP-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- LEHOTFFKMJEONL-UHFFFAOYSA-N Uric Acid Chemical compound N1C(=O)NC(=O)C2=C1NC(=O)N2 LEHOTFFKMJEONL-UHFFFAOYSA-N 0.000 description 1
- TVWHNULVHGKJHS-UHFFFAOYSA-N Uric acid Natural products N1C(=O)NC(=O)C2NC(=O)NC21 TVWHNULVHGKJHS-UHFFFAOYSA-N 0.000 description 1
- 239000001940 [(1R,4S,6R)-1,7,7-trimethyl-6-bicyclo[2.2.1]heptanyl] acetate Substances 0.000 description 1
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- KHPLPBHMTCTCHA-UHFFFAOYSA-N ammonium chlorate Chemical compound N.OCl(=O)=O KHPLPBHMTCTCHA-UHFFFAOYSA-N 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 238000003975 animal breeding Methods 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229960000846 camphor Drugs 0.000 description 1
- 229930008380 camphor Natural products 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229940068911 chloride hexahydrate Drugs 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000000247 postprecipitation Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229940074386 skatole Drugs 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 229940116269 uric acid Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L11/00—Methods specially adapted for refuse
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/01—Deodorant compositions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Inorganic Chemistry (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Treatment Of Sludge (AREA)
- Catalysts (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Removal Of Specific Substances (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Treating Waste Gases (AREA)
- Processing Of Solid Wastes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US43987974A | 1974-02-06 | 1974-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1062447A true CA1062447A (en) | 1979-09-18 |
Family
ID=23746513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA219,473A Expired CA1062447A (en) | 1974-02-06 | 1975-02-06 | Elimination of odors from organic wastes |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS50115172A (en:Method) |
| AT (1) | AT335377B (en:Method) |
| BE (1) | BE825452A (en:Method) |
| CA (1) | CA1062447A (en:Method) |
| CH (1) | CH609566A5 (en:Method) |
| DE (1) | DE2505020C3 (en:Method) |
| DK (1) | DK39375A (en:Method) |
| FI (1) | FI750313A7 (en:Method) |
| FR (1) | FR2259621B1 (en:Method) |
| GB (1) | GB1449433A (en:Method) |
| IT (1) | IT1027488B (en:Method) |
| NL (1) | NL7501390A (en:Method) |
| NO (1) | NO143214C (en:Method) |
| SE (1) | SE7501206L (en:Method) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1597342A (en) * | 1977-03-29 | 1981-09-03 | Courtaulds Ltd | Treatment of aqueous effluents containing a dyestuff |
| JPS5411092A (en) * | 1977-06-29 | 1979-01-26 | Mitsui Eng & Shipbuild Co Ltd | Treating method for gas containing hydrogen sulfide type compounds |
| DE2757561C2 (de) * | 1977-12-23 | 1987-03-26 | Degussa Ag, 6000 Frankfurt | Verfahren zum Desodorieren von Schlämmen |
| US4446031A (en) * | 1981-06-30 | 1984-05-01 | Tioxide Group Limited | Sewage treatment composition its manufacture and use |
| JPS58154282U (ja) * | 1982-04-12 | 1983-10-15 | 株式会社日立製作所 | 牽引ロ−プつきエレベ−タ− |
| JPS6418430A (en) * | 1987-07-13 | 1989-01-23 | Hiroshi Kondo | Deodorizing device for malodorous gas |
| EP0417098B1 (en) * | 1988-05-09 | 1992-09-16 | Hydro Supra Ab | Method of sewage treatment |
| GB9609650D0 (en) * | 1996-05-09 | 1996-07-10 | Solvay Interox Ltd | Slurry deodorisation |
| DE19710826A1 (de) * | 1997-03-15 | 1998-09-17 | Lars Rennerfelt | Verfahren zur Herstellung einer wäßrigen Chlordioxid-Lösung zum Desinfizieren von Roh- und Abwasser |
| FR2763855B1 (fr) * | 1997-05-30 | 2006-05-05 | Celine Hunsinger Wuest | Procede et dispositif de traitement des nuisances olfactives au niveau des bassins de decantation et des lagunes |
-
1975
- 1975-02-04 SE SE7501206A patent/SE7501206L/xx unknown
- 1975-02-05 NL NL7501390A patent/NL7501390A/xx not_active Application Discontinuation
- 1975-02-05 GB GB489075A patent/GB1449433A/en not_active Expired
- 1975-02-05 DK DK39375*#A patent/DK39375A/da not_active Application Discontinuation
- 1975-02-05 FI FI750313A patent/FI750313A7/fi not_active Application Discontinuation
- 1975-02-05 NO NO750370A patent/NO143214C/no unknown
- 1975-02-06 FR FR7503746A patent/FR2259621B1/fr not_active Expired
- 1975-02-06 CH CH142875A patent/CH609566A5/xx not_active IP Right Cessation
- 1975-02-06 IT IT67323/75A patent/IT1027488B/it active
- 1975-02-06 DE DE2505020A patent/DE2505020C3/de not_active Expired
- 1975-02-06 CA CA219,473A patent/CA1062447A/en not_active Expired
- 1975-02-06 AT AT91275*#A patent/AT335377B/de not_active IP Right Cessation
- 1975-02-06 JP JP50015847A patent/JPS50115172A/ja active Pending
- 1975-02-12 BE BE153291A patent/BE825452A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1449433A (en) | 1976-09-15 |
| BE825452A (fr) | 1975-05-29 |
| NO143214B (no) | 1980-09-22 |
| NO143214C (no) | 1981-01-07 |
| FR2259621B1 (en:Method) | 1979-08-03 |
| IT1027488B (it) | 1978-11-20 |
| AT335377B (de) | 1977-03-10 |
| CH609566A5 (en) | 1979-03-15 |
| SE7501206L (en:Method) | 1975-08-07 |
| DE2505020A1 (de) | 1975-08-07 |
| FI750313A7 (en:Method) | 1975-08-07 |
| JPS50115172A (en:Method) | 1975-09-09 |
| DK39375A (en:Method) | 1975-10-13 |
| NO750370L (en:Method) | 1975-09-01 |
| DE2505020B2 (de) | 1977-08-11 |
| FR2259621A1 (en:Method) | 1975-08-29 |
| NL7501390A (nl) | 1975-08-08 |
| DE2505020C3 (de) | 1978-04-13 |
| ATA91275A (de) | 1976-06-15 |
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