DE2532027A1 - Verfahren zur herstellung von chlorierten aethylenderivaten - Google Patents
Verfahren zur herstellung von chlorierten aethylenderivatenInfo
- Publication number
- DE2532027A1 DE2532027A1 DE19752532027 DE2532027A DE2532027A1 DE 2532027 A1 DE2532027 A1 DE 2532027A1 DE 19752532027 DE19752532027 DE 19752532027 DE 2532027 A DE2532027 A DE 2532027A DE 2532027 A1 DE2532027 A1 DE 2532027A1
- Authority
- DE
- Germany
- Prior art keywords
- chlorinated
- ethylene
- catalyst
- combustion
- catalyst bed
- 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- Withdrawn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
- 238000000034 method Methods 0.000 title claims description 46
- 230000008569 process Effects 0.000 title claims description 24
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical class C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 title claims description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000003054 catalyst Substances 0.000 claims description 64
- 239000006227 byproduct Substances 0.000 claims description 32
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 24
- 239000000460 chlorine Substances 0.000 claims description 24
- 229910052801 chlorine Inorganic materials 0.000 claims description 24
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 23
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims description 23
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 23
- 238000002485 combustion reaction Methods 0.000 claims description 21
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 18
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 17
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 16
- 239000005977 Ethylene Substances 0.000 claims description 14
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 239000000567 combustion gas Substances 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 229910052697 platinum Inorganic materials 0.000 claims description 10
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 8
- 229910052763 palladium Inorganic materials 0.000 claims description 8
- 230000003197 catalytic effect Effects 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims 2
- 238000003892 spreading Methods 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- 229910052799 carbon Inorganic materials 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 239000000047 product Substances 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 238000007084 catalytic combustion reaction Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical class CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 3
- -1 Vinylidene halides Chemical class 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000012159 carrier gas Substances 0.000 description 3
- 238000005660 chlorination reaction Methods 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 3
- 235000013980 iron oxide Nutrition 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical class [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical group ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- RWNKSTSCBHKHTB-UHFFFAOYSA-N Hexachloro-1,3-butadiene Chemical compound ClC(Cl)=C(Cl)C(Cl)=C(Cl)Cl RWNKSTSCBHKHTB-UHFFFAOYSA-N 0.000 description 2
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 229910002090 carbon oxide Inorganic materials 0.000 description 2
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 229960003750 ethyl chloride Drugs 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000013067 intermediate product Substances 0.000 description 2
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical class Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229950011008 tetrachloroethylene Drugs 0.000 description 2
- QVLAWKAXOMEXPM-UHFFFAOYSA-N 1,1,1,2-tetrachloroethane Chemical class ClCC(Cl)(Cl)Cl QVLAWKAXOMEXPM-UHFFFAOYSA-N 0.000 description 1
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical class CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 1
- VFWCMGCRMGJXDK-UHFFFAOYSA-N 1-chlorobutane Chemical compound CCCCCl VFWCMGCRMGJXDK-UHFFFAOYSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- FIRASMGRJRIYHB-UHFFFAOYSA-N ClC=C(Cl)Cl.ClC(Cl)(Cl)Cl Chemical group ClC=C(Cl)Cl.ClC(Cl)(Cl)Cl FIRASMGRJRIYHB-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical class CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical class ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007033 dehydrochlorination reaction Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 238000007038 hydrochlorination reaction Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001510 metal chloride Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000003863 metallic catalyst Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
- C07C17/15—Preparation of halogenated hydrocarbons by replacement by halogens with oxygen as auxiliary reagent, e.g. oxychlorination
- C07C17/152—Preparation of halogenated hydrocarbons by replacement by halogens with oxygen as auxiliary reagent, e.g. oxychlorination of hydrocarbons
- C07C17/156—Preparation of halogenated hydrocarbons by replacement by halogens with oxygen as auxiliary reagent, e.g. oxychlorination of hydrocarbons of unsaturated hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/38—Separation; Purification; Stabilisation; Use of additives
- C07C17/395—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to a chemical modification of at least one compound
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/490,391 US4169862A (en) | 1974-07-22 | 1974-07-22 | Low temperature catalytic combustion of chlorohydrocarbons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2532027A1 true DE2532027A1 (de) | 1976-02-05 |
Family
ID=23947845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19752532027 Withdrawn DE2532027A1 (de) | 1974-07-22 | 1975-07-17 | Verfahren zur herstellung von chlorierten aethylenderivaten |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4169862A (enExample) |
| JP (1) | JPS5910331B2 (enExample) |
| BE (1) | BE831591A (enExample) |
| CA (1) | CA1041125A (enExample) |
| DE (1) | DE2532027A1 (enExample) |
| ES (1) | ES439002A1 (enExample) |
| FR (1) | FR2279704A1 (enExample) |
| GB (1) | GB1506237A (enExample) |
| IT (1) | IT1036392B (enExample) |
| NL (1) | NL7506997A (enExample) |
| NO (1) | NO144418C (enExample) |
| SE (1) | SE424985B (enExample) |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2424243A1 (fr) * | 1978-04-26 | 1979-11-23 | Rhone Poulenc Ind | Procede d'oxyhydrochloration non polluant |
| DE3331962A1 (de) * | 1983-09-05 | 1985-03-21 | Wacker-Chemie GmbH, 8000 München | Verfahren zur aufbereitung von chlorwasserstoff als einsatzstoff fuer den ethylenoxichlorierungsprozess |
| US5635438A (en) * | 1994-06-10 | 1997-06-03 | The Geon Company | Chromium catalyst and catalytic oxidation process |
| US7838708B2 (en) | 2001-06-20 | 2010-11-23 | Grt, Inc. | Hydrocarbon conversion process improvements |
| WO2005021468A1 (en) | 2003-07-15 | 2005-03-10 | Grt, Inc. | Hydrocarbon synthesis |
| US20050171393A1 (en) | 2003-07-15 | 2005-08-04 | Lorkovic Ivan M. | Hydrocarbon synthesis |
| US8642822B2 (en) | 2004-04-16 | 2014-02-04 | Marathon Gtf Technology, Ltd. | Processes for converting gaseous alkanes to liquid hydrocarbons using microchannel reactor |
| US20060100469A1 (en) * | 2004-04-16 | 2006-05-11 | Waycuilis John J | Process for converting gaseous alkanes to olefins and liquid hydrocarbons |
| US8173851B2 (en) | 2004-04-16 | 2012-05-08 | Marathon Gtf Technology, Ltd. | Processes for converting gaseous alkanes to liquid hydrocarbons |
| US7244867B2 (en) * | 2004-04-16 | 2007-07-17 | Marathon Oil Company | Process for converting gaseous alkanes to liquid hydrocarbons |
| US20080275284A1 (en) | 2004-04-16 | 2008-11-06 | Marathon Oil Company | Process for converting gaseous alkanes to liquid hydrocarbons |
| US7674941B2 (en) | 2004-04-16 | 2010-03-09 | Marathon Gtf Technology, Ltd. | Processes for converting gaseous alkanes to liquid hydrocarbons |
| US7531464B2 (en) * | 2005-12-20 | 2009-05-12 | Texas Instruments Incorporated | Semiconductive device fabricated using a substantially disassociated chlorohydrocarbon |
| US7579510B2 (en) | 2006-02-03 | 2009-08-25 | Grt, Inc. | Continuous process for converting natural gas to liquid hydrocarbons |
| AU2007212493B2 (en) | 2006-02-03 | 2012-09-27 | Grt, Inc. | Separation of light gases from halogens |
| KR20100027141A (ko) | 2007-05-24 | 2010-03-10 | 지알티, 인코포레이티드 | 가역적으로 할로겐화수소를 흡수 및 방출할 수 있는 존 반응기 |
| US20090312586A1 (en) * | 2008-06-13 | 2009-12-17 | Marathon Gtf Technology, Ltd. | Hydrogenation of multi-brominated alkanes |
| US8282810B2 (en) | 2008-06-13 | 2012-10-09 | Marathon Gtf Technology, Ltd. | Bromine-based method and system for converting gaseous alkanes to liquid hydrocarbons using electrolysis for bromine recovery |
| SG192538A1 (en) | 2008-07-18 | 2013-08-30 | Grt Inc | Continuous process for converting natural gas to liquid hydrocarbons |
| US20110015458A1 (en) * | 2009-07-15 | 2011-01-20 | Marathon Gtf Technology, Ltd. | Conversion of hydrogen bromide to elemental bromine |
| US8367884B2 (en) | 2010-03-02 | 2013-02-05 | Marathon Gtf Technology, Ltd. | Processes and systems for the staged synthesis of alkyl bromides |
| US8198495B2 (en) * | 2010-03-02 | 2012-06-12 | Marathon Gtf Technology, Ltd. | Processes and systems for the staged synthesis of alkyl bromides |
| US8815050B2 (en) | 2011-03-22 | 2014-08-26 | Marathon Gtf Technology, Ltd. | Processes and systems for drying liquid bromine |
| US8436220B2 (en) | 2011-06-10 | 2013-05-07 | Marathon Gtf Technology, Ltd. | Processes and systems for demethanization of brominated hydrocarbons |
| US8829256B2 (en) | 2011-06-30 | 2014-09-09 | Gtc Technology Us, Llc | Processes and systems for fractionation of brominated hydrocarbons in the conversion of natural gas to liquid hydrocarbons |
| US8802908B2 (en) | 2011-10-21 | 2014-08-12 | Marathon Gtf Technology, Ltd. | Processes and systems for separate, parallel methane and higher alkanes' bromination |
| US9193641B2 (en) | 2011-12-16 | 2015-11-24 | Gtc Technology Us, Llc | Processes and systems for conversion of alkyl bromides to higher molecular weight hydrocarbons in circulating catalyst reactor-regenerator systems |
| US11285463B1 (en) * | 2017-12-15 | 2022-03-29 | Precision Combustion, Inc. | Bimetallic catalyst for catalytic partial oxidation of hydrocarbons |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1086222A (en) * | 1965-01-14 | 1967-10-04 | Ici Ltd | Improvements in or relating to the manufacture of halogenated hydrocarbons |
| US3453073A (en) * | 1967-03-31 | 1969-07-01 | Air Reduction | Hydrogen chloride recovery process |
| US3879481A (en) * | 1967-04-11 | 1975-04-22 | Lummus Co | Production of vinyl chloride |
| US4053557A (en) * | 1973-05-14 | 1977-10-11 | Mitsubishi Chemical Industries Ltd. | Method of decomposing chlorohydrocarbons |
| GB1430568A (en) * | 1973-05-14 | 1976-03-31 | Mitsubihsi Chemical Ind Ltd | Method of decomposing halohydrocarbons |
-
1974
- 1974-07-22 US US05/490,391 patent/US4169862A/en not_active Expired - Lifetime
-
1975
- 1975-04-25 CA CA225,462A patent/CA1041125A/en not_active Expired
- 1975-05-23 GB GB22529/75A patent/GB1506237A/en not_active Expired
- 1975-06-12 JP JP50070278A patent/JPS5910331B2/ja not_active Expired
- 1975-06-12 NL NL7506997A patent/NL7506997A/xx not_active Application Discontinuation
- 1975-06-27 IT IT68665/75A patent/IT1036392B/it active
- 1975-06-30 ES ES439002A patent/ES439002A1/es not_active Expired
- 1975-07-17 FR FR7522384A patent/FR2279704A1/fr active Granted
- 1975-07-17 DE DE19752532027 patent/DE2532027A1/de not_active Withdrawn
- 1975-07-21 NO NO752589A patent/NO144418C/no unknown
- 1975-07-21 SE SE7508285A patent/SE424985B/xx unknown
- 1975-07-22 BE BE158484A patent/BE831591A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2279704B1 (enExample) | 1980-05-30 |
| JPS5113709A (en) | 1976-02-03 |
| ES439002A1 (es) | 1977-02-16 |
| FR2279704A1 (fr) | 1976-02-20 |
| SE424985B (sv) | 1982-08-23 |
| NO144418C (no) | 1981-08-26 |
| IT1036392B (it) | 1979-10-30 |
| US4169862A (en) | 1979-10-02 |
| AU8118575A (en) | 1976-11-18 |
| NO752589L (enExample) | 1976-01-23 |
| BE831591A (fr) | 1976-01-22 |
| GB1506237A (en) | 1978-04-05 |
| CA1041125A (en) | 1978-10-24 |
| SE7508285L (sv) | 1976-01-23 |
| JPS5910331B2 (ja) | 1984-03-08 |
| NO144418B (no) | 1981-05-18 |
| NL7506997A (nl) | 1976-01-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8130 | Withdrawal |