PL82477B1 - - Google Patents
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- Publication number
- PL82477B1 PL82477B1 PL1972159836A PL15983672A PL82477B1 PL 82477 B1 PL82477 B1 PL 82477B1 PL 1972159836 A PL1972159836 A PL 1972159836A PL 15983672 A PL15983672 A PL 15983672A PL 82477 B1 PL82477 B1 PL 82477B1
- Authority
- PL
- Poland
- Prior art keywords
- catalyst
- gas
- oxide
- nickel
- aluminates
- Prior art date
Links
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 87
- 239000007789 gas Substances 0.000 claims description 70
- 239000003054 catalyst Substances 0.000 claims description 66
- 238000000034 method Methods 0.000 claims description 43
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 30
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 21
- 239000010949 copper Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 15
- 230000001603 reducing effect Effects 0.000 claims description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 229910052802 copper Inorganic materials 0.000 claims description 13
- 150000004645 aluminates Chemical class 0.000 claims description 12
- 238000002485 combustion reaction Methods 0.000 claims description 12
- 229910044991 metal oxide Inorganic materials 0.000 claims description 12
- 150000004706 metal oxides Chemical class 0.000 claims description 12
- 239000008240 homogeneous mixture Substances 0.000 claims description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims description 11
- 229930195733 hydrocarbon Natural products 0.000 claims description 10
- 150000002430 hydrocarbons Chemical class 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 9
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 9
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 8
- 239000011572 manganese Substances 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 229910017604 nitric acid Inorganic materials 0.000 claims description 8
- 229910052748 manganese Inorganic materials 0.000 claims description 6
- 238000010531 catalytic reduction reaction Methods 0.000 claims description 5
- AMWRITDGCCNYAT-UHFFFAOYSA-L manganese oxide Inorganic materials [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 5
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 claims description 5
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 4
- -1 manganese aluminates Chemical class 0.000 claims description 4
- 239000004215 Carbon black (E152) Substances 0.000 claims description 3
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 2
- 229910052863 mullite Inorganic materials 0.000 claims description 2
- 239000003345 natural gas Substances 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical group O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 239000001294 propane Substances 0.000 claims description 2
- 229910052596 spinel Inorganic materials 0.000 claims description 2
- 239000011029 spinel Substances 0.000 claims description 2
- 229910052878 cordierite Inorganic materials 0.000 claims 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims 1
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 26
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 231100000614 poison Toxicity 0.000 description 6
- 229920006395 saturated elastomer Polymers 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 230000007096 poisonous effect Effects 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 2
- 150000002823 nitrates Chemical class 0.000 description 2
- 239000001272 nitrous oxide Substances 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 229920000715 Mucilage Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000011234 economic evaluation Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical class [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- MMKQUGHLEMYQSG-UHFFFAOYSA-N oxygen(2-);praseodymium(3+) Chemical compound [O-2].[O-2].[O-2].[Pr+3].[Pr+3] MMKQUGHLEMYQSG-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910003447 praseodymium oxide Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
- B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9413—Processes characterised by a specific catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/208—Hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/2073—Manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20753—Nickel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20761—Copper
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2165548A DE2165548C3 (de) | 1971-12-30 | 1971-12-30 | Reduktionskatalysator zur Reduktion von Stickoxiden in Abgasen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL82477B1 true PL82477B1 (en, 2012) | 1975-10-31 |
Family
ID=5829699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL1972159836A PL82477B1 (en, 2012) | 1971-12-30 | 1972-12-28 |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US3880982A (en, 2012) |
| JP (1) | JPS4879160A (en, 2012) |
| BE (1) | BE793519A (en, 2012) |
| BR (1) | BR7209002D0 (en, 2012) |
| CA (1) | CA998824A (en, 2012) |
| CH (1) | CH590686A5 (en, 2012) |
| CS (1) | CS170460B2 (en, 2012) |
| DD (1) | DD101292A5 (en, 2012) |
| DE (1) | DE2165548C3 (en, 2012) |
| FR (1) | FR2166190B1 (en, 2012) |
| GB (1) | GB1381370A (en, 2012) |
| IL (1) | IL41171A (en, 2012) |
| IT (1) | IT974322B (en, 2012) |
| NL (1) | NL7217288A (en, 2012) |
| PL (1) | PL82477B1 (en, 2012) |
| RO (1) | RO61179A (en, 2012) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50133995A (en, 2012) * | 1974-04-11 | 1975-10-23 | ||
| JPS5390186A (en) * | 1977-01-20 | 1978-08-08 | Kureha Chem Ind Co Ltd | Catalyst for reducing of nitrogen |
| US4325432A (en) * | 1980-04-07 | 1982-04-20 | Henry John T | Method of oil recovery |
| US4695437A (en) * | 1986-06-13 | 1987-09-22 | Johnson Matthey, Inc. | Selective catalytic reduction catalysts |
| DE3634553A1 (de) * | 1986-10-10 | 1988-04-21 | Didier Werke Ag | Verwendung von manganknollen oder manganhaltigen tiefsee-erzen in katalysatoren zur verminderung von stickstoffoxiden in abgasen |
| JPH0611381B2 (ja) * | 1986-10-17 | 1994-02-16 | 株式会社豊田中央研究所 | 排ガス浄化方法 |
| DE3917983A1 (de) * | 1989-06-02 | 1990-12-06 | Gaswaerme Inst Ev | Verfahren und vorrichtung zum vermindern der stickstoffoxid-konzentration eines no(pfeil abwaerts)x(pfeil abwaerts)-haltigen rauchgases |
| US5021146A (en) * | 1989-12-28 | 1991-06-04 | Mobil Oil Corporation | Reducing NOx emissions with group IIIB compounds |
| EP0494388B1 (en) * | 1991-01-08 | 1995-12-06 | Agency Of Industrial Science And Technology | Process for removing nitrogen oxides from exhaust gases |
| CA2141734C (en) * | 1995-01-25 | 2000-06-06 | Raj Narain Pandey | Selective catalytic reduction of nitrogen oxides |
| RU2163836C2 (ru) * | 1999-04-19 | 2001-03-10 | Открытое акционерное общество "Всероссийский научно-исследовательский институт органического синтеза в г. Новокуйбышевске" | Способ очистки газовых выбросов промышленных производств от углеводородов |
| US9937458B2 (en) * | 2005-03-01 | 2018-04-10 | Sandi Arabian Oil Company | Method for decarbonization of a fuel on board a vehicle |
| CN105126822A (zh) * | 2015-07-10 | 2015-12-09 | 上海纳米技术及应用国家工程研究中心有限公司 | 整体式低浓度一氧化氮常温氧化锰催化剂的制备方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE396270A (en, 2012) * | 1932-05-12 | |||
| US2924504A (en) * | 1956-08-30 | 1960-02-09 | Chemetron Corp | Process of removing nitrogen oxides from gas streams of varying composition |
| US3216954A (en) * | 1959-07-22 | 1965-11-09 | Du Pont | Mangano-chromia-manganite catalyst and process for its production |
| US3228746A (en) * | 1960-09-29 | 1966-01-11 | Du Pont | Method of treating exhaust gases of internal combustion engines |
| US3231516A (en) * | 1962-07-12 | 1966-01-25 | Minerals & Chem Philipp Corp | Catalyst containing activated bauxite |
| US3493325A (en) * | 1967-09-12 | 1970-02-03 | Monsanto Co | Process for catalytically treating exhaust gases |
| US3681260A (en) * | 1968-12-26 | 1972-08-01 | Texaco Inc | Catalyst and method of making same |
| US3699683A (en) * | 1971-04-05 | 1972-10-24 | Chemical Construction Corp | Engine exhaust emission control system |
| US3757521A (en) * | 1971-04-05 | 1973-09-11 | Chemical Construction Corp | Integrated engine exhaust emission control system |
| FR2109662A5 (en) * | 1971-07-16 | 1972-05-26 | Chemical Construction Corp | Exhaust gas conversion catalyst - for ic engines comprises alumina-supported copper and cobalt oxides |
-
1971
- 1971-12-30 DE DE2165548A patent/DE2165548C3/de not_active Expired
-
1972
- 1972-11-02 DD DD166648A patent/DD101292A5/xx unknown
- 1972-12-19 RO RO73211A patent/RO61179A/ro unknown
- 1972-12-19 NL NL7217288A patent/NL7217288A/xx not_active Application Discontinuation
- 1972-12-20 BR BR009002/72A patent/BR7209002D0/pt unknown
- 1972-12-25 IL IL41171A patent/IL41171A/en unknown
- 1972-12-26 US US318672A patent/US3880982A/en not_active Expired - Lifetime
- 1972-12-26 JP JP48004554A patent/JPS4879160A/ja active Pending
- 1972-12-27 IT IT55033/72A patent/IT974322B/it active
- 1972-12-27 CH CH1892272A patent/CH590686A5/xx not_active IP Right Cessation
- 1972-12-28 PL PL1972159836A patent/PL82477B1/pl unknown
- 1972-12-29 CA CA160,239A patent/CA998824A/en not_active Expired
- 1972-12-29 FR FR7246957A patent/FR2166190B1/fr not_active Expired
- 1972-12-29 CS CS9066A patent/CS170460B2/cs unknown
- 1972-12-29 GB GB6003772A patent/GB1381370A/en not_active Expired
- 1972-12-29 BE BE793519D patent/BE793519A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE793519A (fr) | 1973-06-29 |
| DD101292A5 (en, 2012) | 1973-11-05 |
| FR2166190B1 (en, 2012) | 1978-06-30 |
| DE2165548A1 (de) | 1973-07-05 |
| IL41171A (en) | 1976-04-30 |
| IT974322B (it) | 1974-06-20 |
| CA998824A (en) | 1976-10-26 |
| BR7209002D0 (pt) | 1973-08-30 |
| DE2165548C3 (de) | 1978-09-14 |
| FR2166190A1 (en, 2012) | 1973-08-10 |
| CH590686A5 (en, 2012) | 1977-08-15 |
| RO61179A (en, 2012) | 1976-07-15 |
| JPS4879160A (en, 2012) | 1973-10-24 |
| IL41171A0 (en) | 1973-02-28 |
| GB1381370A (en) | 1975-01-22 |
| NL7217288A (en, 2012) | 1973-07-03 |
| CS170460B2 (en, 2012) | 1976-08-27 |
| DE2165548B2 (de) | 1978-01-12 |
| US3880982A (en) | 1975-04-29 |
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