DE2544930A1 - Verfahren zum gewinnen von roher acrylsaeure aus dem acroleinhaltigen gasfoermigen produkt der katalytischen dampfphasenoxidation von acrolein oder acroleinbildnern - Google Patents
Verfahren zum gewinnen von roher acrylsaeure aus dem acroleinhaltigen gasfoermigen produkt der katalytischen dampfphasenoxidation von acrolein oder acroleinbildnernInfo
- Publication number
- DE2544930A1 DE2544930A1 DE19752544930 DE2544930A DE2544930A1 DE 2544930 A1 DE2544930 A1 DE 2544930A1 DE 19752544930 DE19752544930 DE 19752544930 DE 2544930 A DE2544930 A DE 2544930A DE 2544930 A1 DE2544930 A1 DE 2544930A1
- Authority
- DE
- Germany
- Prior art keywords
- acrolein
- liquid
- acrylic acid
- tower
- fractionation tower
- 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- Withdrawn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
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 title claims description 86
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 title claims description 39
- 238000007254 oxidation reaction Methods 0.000 title claims description 30
- 230000003647 oxidation Effects 0.000 title claims description 28
- 238000000034 method Methods 0.000 title claims description 23
- 239000012808 vapor phase Substances 0.000 title claims description 21
- 230000003197 catalytic effect Effects 0.000 title claims description 17
- 239000007788 liquid Substances 0.000 claims description 52
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 37
- 238000005194 fractionation Methods 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 239000002689 soil Substances 0.000 claims description 15
- 239000003085 diluting agent Substances 0.000 claims description 10
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 8
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 150000002430 hydrocarbons Chemical class 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 229920013683 Celanese Polymers 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims description 2
- 238000010992 reflux Methods 0.000 claims description 2
- 239000007858 starting material Substances 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims 1
- 229910052753 mercury Inorganic materials 0.000 claims 1
- 239000000047 product Substances 0.000 description 41
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 239000003054 catalyst Substances 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 238000004821 distillation Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000012856 packing Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- BSABBBMNWQWLLU-UHFFFAOYSA-N hydroxypropionaldehyde Natural products CC(O)C=O BSABBBMNWQWLLU-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- -1 but nitrogen Natural products 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium 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
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000003701 inert diluent Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 239000005078 molybdenum compound Substances 0.000 description 1
- 150000002752 molybdenum compounds Chemical class 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- DNYWZCXLKNTFFI-UHFFFAOYSA-N uranium Chemical compound [U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U] DNYWZCXLKNTFFI-UHFFFAOYSA-N 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S203/00—Distillation: processes, separatory
- Y10S203/22—Accessories
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S203/00—Distillation: processes, separatory
- Y10S203/90—Particular type of heating
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51264374A | 1974-10-07 | 1974-10-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2544930A1 true DE2544930A1 (de) | 1976-04-15 |
Family
ID=24039955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19752544930 Withdrawn DE2544930A1 (de) | 1974-10-07 | 1975-10-07 | Verfahren zum gewinnen von roher acrylsaeure aus dem acroleinhaltigen gasfoermigen produkt der katalytischen dampfphasenoxidation von acrolein oder acroleinbildnern |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US4156633A (enExample) |
| JP (1) | JPS5159813A (enExample) |
| AR (1) | AR206439A1 (enExample) |
| AU (1) | AU8548875A (enExample) |
| BE (1) | BE834267A (enExample) |
| BR (1) | BR7506505A (enExample) |
| CA (1) | CA1055873A (enExample) |
| CH (1) | CH601165A5 (enExample) |
| DE (1) | DE2544930A1 (enExample) |
| ES (1) | ES441531A1 (enExample) |
| FR (1) | FR2287437A1 (enExample) |
| GB (1) | GB1466209A (enExample) |
| IT (1) | IT1043152B (enExample) |
| LU (1) | LU73522A1 (enExample) |
| NL (1) | NL7511717A (enExample) |
| SE (1) | SE7511177L (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0706986A1 (de) * | 1994-10-11 | 1996-04-17 | Basf Aktiengesellschaft | Verfahren zur Abtrennung von (Meth)acrylsäure aus dem Reaktionsgasgemisch der katalytischen Gasphasenoxidation von C3-/C4-Verbindungen |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4256675A (en) * | 1977-07-28 | 1981-03-17 | Celanese Corporation | Method for generating super atmospheric pressures of sensitive materials in a gas stream |
| IN151108B (enExample) * | 1978-09-13 | 1983-02-19 | Standard Oil Co | |
| US4365081A (en) * | 1980-05-20 | 1982-12-21 | Nippon Shokubai Kagaku Kogyo Co. Ltd. | Process for producing 2-hydroxyalkyl acrylates or methacrylates |
| US4999452A (en) * | 1989-05-15 | 1991-03-12 | Union Carbide Chemicals And Plastics Company Inc. | Process for producing acrylic ester |
| JP3289303B2 (ja) * | 1992-03-06 | 2002-06-04 | 住友化学工業株式会社 | アクロレインの製造方法 |
| FR2735989B1 (fr) * | 1995-06-29 | 1997-08-14 | Rhone Poulenc Nutrition Animal | Procede et installation de purification d'un flux gazeux contenant de l'acroleine |
| JP3028925B2 (ja) * | 1995-12-05 | 2000-04-04 | 株式会社日本触媒 | アクリル酸の製造方法 |
| DE19627847A1 (de) * | 1996-07-10 | 1998-01-15 | Basf Ag | Verfahren zur Herstellung von Acrylsäure |
| DE19740253A1 (de) * | 1997-09-12 | 1999-03-18 | Basf Ag | Verfahren zur fraktionierten Kondensation eines heißen Gasgemisches mit einem hohen Anteil nicht kondensierbarer Komponenten |
| MY122671A (en) * | 1999-03-06 | 2006-04-29 | Basf Ag | Fractional condensation of a product gas mixture containing acrylic acid |
| US6500982B1 (en) * | 1999-06-28 | 2002-12-31 | Rohm And Haas Company | Process for preparing (meth) acrylic acid |
| US20040104108A1 (en) * | 2002-12-03 | 2004-06-03 | Mason Robert Michael | High capacity purification of thermally unstable compounds |
| CA2496100A1 (en) * | 2004-03-10 | 2005-09-10 | Afton Chemical Corporation | Power transmission fluids with enhanced extreme pressure characteristics |
| JP4732366B2 (ja) * | 2004-08-02 | 2011-07-27 | エルジー・ケム・リミテッド | （メタ）アクリル酸の製造法 |
| US9109166B2 (en) * | 2007-11-08 | 2015-08-18 | Shell Oil Company | Treating a crude and natural gas stream |
| CN110711401A (zh) * | 2019-11-28 | 2020-01-21 | 福州大学 | 一种板式反应精馏塔 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3002017A (en) * | 1959-07-13 | 1961-09-26 | Goodrich Co B F | Method for preparing acrylic acid |
| US3113851A (en) * | 1959-09-05 | 1963-12-10 | Kurashiki Rayon Co | Process for recovering vapors |
| US3405172A (en) * | 1962-12-19 | 1968-10-08 | Distillers Co Yeast Ltd | Preparation of acrylic acid with the prevention of formation of acrylic polymers |
| US3555082A (en) * | 1966-12-15 | 1971-01-12 | Knapsack Ag | Process for isolating acrylic acid from the reaction gases obtained by oxidation of propylene or acrolein |
| DE2241714A1 (de) * | 1972-08-24 | 1974-03-28 | Basf Ag | Verfahren zur abtrennung von acrylsaeure aus den reaktionsgasen der propylenoder acroleinoxydation |
-
1975
- 1975-01-01 AR AR260696A patent/AR206439A1/es active
- 1975-09-30 JP JP50117323A patent/JPS5159813A/ja active Pending
- 1975-10-03 FR FR7530367A patent/FR2287437A1/fr active Granted
- 1975-10-06 IT IT27998/75A patent/IT1043152B/it active
- 1975-10-06 SE SE7511177A patent/SE7511177L/xx unknown
- 1975-10-06 LU LU73522A patent/LU73522A1/xx unknown
- 1975-10-06 CH CH1295175A patent/CH601165A5/xx not_active IP Right Cessation
- 1975-10-06 GB GB4080375A patent/GB1466209A/en not_active Expired
- 1975-10-06 CA CA237,092A patent/CA1055873A/en not_active Expired
- 1975-10-06 NL NL7511717A patent/NL7511717A/xx not_active Application Discontinuation
- 1975-10-06 ES ES441531A patent/ES441531A1/es not_active Expired
- 1975-10-06 BR BR7506505*A patent/BR7506505A/pt unknown
- 1975-10-07 BE BE160747A patent/BE834267A/xx unknown
- 1975-10-07 AU AU85488/75A patent/AU8548875A/en not_active Expired
- 1975-10-07 DE DE19752544930 patent/DE2544930A1/de not_active Withdrawn
-
1976
- 1976-07-29 US US05/709,841 patent/US4156633A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0706986A1 (de) * | 1994-10-11 | 1996-04-17 | Basf Aktiengesellschaft | Verfahren zur Abtrennung von (Meth)acrylsäure aus dem Reaktionsgasgemisch der katalytischen Gasphasenoxidation von C3-/C4-Verbindungen |
| US5780679A (en) * | 1994-10-11 | 1998-07-14 | Basf Aktiengesellschaft | Separation of (meth)acrylic acid from the reaction gas mixture formed in the catalytic gas phase oxidation of C3 /C4 compounds |
Also Published As
| Publication number | Publication date |
|---|---|
| US4156633A (en) | 1979-05-29 |
| JPS5159813A (enExample) | 1976-05-25 |
| GB1466209A (en) | 1977-03-02 |
| CH601165A5 (enExample) | 1978-06-30 |
| BR7506505A (pt) | 1976-08-10 |
| BE834267A (fr) | 1976-04-07 |
| CA1055873A (en) | 1979-06-05 |
| ES441531A1 (es) | 1977-03-16 |
| AU8548875A (en) | 1977-04-21 |
| FR2287437B1 (enExample) | 1980-09-12 |
| SE7511177L (sv) | 1976-04-08 |
| LU73522A1 (enExample) | 1976-04-13 |
| IT1043152B (it) | 1980-02-20 |
| NL7511717A (nl) | 1976-04-09 |
| AR206439A1 (es) | 1976-07-23 |
| FR2287437A1 (fr) | 1976-05-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8128 | New person/name/address of the agent |
Representative=s name: ABITZ, W., DIPL.-ING.DR.-ING. MORF, D., DR., PAT.- |
|
| 8141 | Disposal/no request for examination |