DE3204733C2 - - Google Patents
Info
- Publication number
- DE3204733C2 DE3204733C2 DE3204733A DE3204733A DE3204733C2 DE 3204733 C2 DE3204733 C2 DE 3204733C2 DE 3204733 A DE3204733 A DE 3204733A DE 3204733 A DE3204733 A DE 3204733A DE 3204733 C2 DE3204733 C2 DE 3204733C2
- Authority
- DE
- Germany
- Prior art keywords
- reactor
- product
- fraction
- line
- fed
- 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 - Lifetime
Links
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 47
- 238000000034 method Methods 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 15
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 13
- 230000018044 dehydration Effects 0.000 claims description 12
- 238000006297 dehydration reaction Methods 0.000 claims description 12
- 238000000926 separation method Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000004821 distillation Methods 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000012223 aqueous fraction Substances 0.000 claims description 5
- 239000005977 Ethylene Substances 0.000 claims description 4
- 239000013529 heat transfer fluid Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 230000001476 alcoholic effect Effects 0.000 claims 1
- 239000000284 extract Substances 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000000047 product Substances 0.000 description 45
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 14
- 239000007789 gas Substances 0.000 description 11
- 238000004140 cleaning Methods 0.000 description 10
- 239000000543 intermediate Substances 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000007792 gaseous phase Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012263 liquid product Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011874 heated mixture Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C11/00—Aliphatic unsaturated hydrocarbons
- C07C11/02—Alkenes
- C07C11/04—Ethylene
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
- C07C1/20—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
- C07C1/24—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms by elimination of water
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR8101487A BR8101487A (pt) | 1981-03-13 | 1981-03-13 | Processo de desidratacao de um alcool de baixo peso molecular |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3204733A1 DE3204733A1 (de) | 1982-11-04 |
| DE3204733C2 true DE3204733C2 (index.php) | 1991-08-29 |
Family
ID=4026564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19823204733 Granted DE3204733A1 (de) | 1981-03-13 | 1982-02-11 | Verfahren zur dehydratisierung eines alkohols mit niedrigem molekulargewicht |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US4396789A (index.php) |
| JP (1) | JPS5838220A (index.php) |
| AR (1) | AR229523A1 (index.php) |
| AU (1) | AU547817B2 (index.php) |
| BE (1) | BE891973A (index.php) |
| BR (1) | BR8101487A (index.php) |
| DE (1) | DE3204733A1 (index.php) |
| FR (1) | FR2501670B1 (index.php) |
| GB (1) | GB2094829B (index.php) |
| IN (1) | IN155485B (index.php) |
| MX (1) | MX159230A (index.php) |
| PH (1) | PH17162A (index.php) |
| ZA (1) | ZA821629B (index.php) |
Families Citing this family (81)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6455749B1 (en) | 1997-10-03 | 2002-09-24 | Exxonmobil Chemical Patents, Inc. | Method for increasing light olefin yield by conversion of a heavy hydrocarbon fraction of a product to light olefins |
| US6444868B1 (en) | 1999-02-17 | 2002-09-03 | Exxon Mobil Chemical Patents Inc. | Process to control conversion of C4+ and heavier stream to lighter products in oxygenate conversion reactions |
| US6482999B2 (en) | 1999-02-17 | 2002-11-19 | Exxonmobil Chemical Patents, Inc. | Method for improving light olefin selectivity in an oxygenate conversion reaction |
| US20040225164A1 (en) * | 2003-05-09 | 2004-11-11 | Conocophillips Company | Method for treating ethane |
| EP1902006B1 (en) * | 2005-07-06 | 2014-08-13 | BP Chemicals Limited | The dehydration of mixed alcohols |
| BRPI0612756B1 (pt) * | 2005-07-06 | 2015-11-17 | Bp Chem Int Ltd | destilação reativa para a desidratação de alcoóis mistos |
| EP1792885A1 (en) * | 2005-11-29 | 2007-06-06 | BP Chemicals Limited | Process for producing ethylene |
| CN101336219A (zh) * | 2005-11-29 | 2008-12-31 | 英国石油化学品有限公司 | 制造烯烃的方法 |
| EP1790627A1 (en) * | 2005-11-29 | 2007-05-30 | BP Chemicals Limited | Process for producing olefins |
| EP1792886A1 (en) * | 2005-11-29 | 2007-06-06 | BP Chemicals Limited | Process for producing propylene |
| BRPI0601803A (pt) * | 2006-05-18 | 2008-02-19 | Helcio Valladares Barrocas | processo para produção de eteno a partir de álcool etìlico |
| CN101172919B (zh) * | 2006-11-02 | 2010-10-27 | 中国石油化工股份有限公司 | 乙醇制乙烯的方法 |
| JP5468904B2 (ja) * | 2006-11-22 | 2014-04-09 | ビーピー ケミカルズ リミテッド | 担持ヘテロポリ酸触媒の使用による酸化剤からのアルケンの製造方法 |
| EP2108636A1 (en) * | 2008-04-11 | 2009-10-14 | Total Petrochemicals Research Feluy | Dehydration of alcohols in the presence of an inert component. |
| US20110098518A1 (en) * | 2008-02-07 | 2011-04-28 | Delphine Minoux | Dehydration of Alcohols in the Presence of an Inert Component |
| EP2123736A1 (de) | 2008-05-19 | 2009-11-25 | C.E.-Technology Limited | Verfahren zur Herstellung von Dieselkraftstoffen und Flugzeugtreibstoffen aus C1-C5-Alkoholen |
| DE102008061300A1 (de) * | 2008-12-11 | 2010-07-08 | Lurgi Gmbh | Verfahren zum Herstellen eines C3H6 und C2H4 enthaltenden Produkts |
| BRPI1009646B1 (pt) | 2009-07-01 | 2018-05-29 | Dow Global Technologies Llc | Processo para preparar uma olefina e processo para preparar eteno |
| IN2012DN02440A (index.php) | 2009-09-24 | 2015-08-21 | Signa Chemistry Inc | |
| EP2338864A1 (en) * | 2009-12-22 | 2011-06-29 | Total Petrochemicals Research Feluy | Process for removing oxygenated contaminants from an hydrocarbon stream |
| FR2959750B1 (fr) | 2010-05-06 | 2013-02-15 | Inst Francais Du Petrole | Procede de production de kerosene a partir de bio-ethanol. |
| FR2959751B1 (fr) | 2010-05-06 | 2012-06-08 | Inst Francais Du Petrole | Procede de production de base pour carburants a partir d'une charge ethylenique mettant en oeuvre au moins une etape d'oligomerisation en presence d'un systeme catalytique homogene. |
| FR2959752B1 (fr) | 2010-05-06 | 2012-06-08 | Inst Francais Du Petrole | Procede flexible de transformation de l'ethanol en distillats moyens mettant en oeuvre un systeme catalytique homogene et un systeme catalytique heterogene. |
| EP2450450A1 (en) * | 2010-11-09 | 2012-05-09 | Ineos Commercial Services UK Limited | Process and apparatus for producing ethylene via preparation of syngas |
| DE102011102971A1 (de) * | 2011-05-31 | 2012-12-06 | Linde Aktiengesellschaft | Verfahren zur Herstellung von Ethylen |
| FR2978146B1 (fr) * | 2011-07-21 | 2013-08-30 | IFP Energies Nouvelles | Procede de deshydratation de l'ethanol en ethylene a basse consommation energetique |
| FR2981065B1 (fr) | 2011-10-07 | 2014-03-14 | IFP Energies Nouvelles | Procede de deshydratation de l'ethanol dilue en ethylene a basse consommation energetique sans recyclage de l'eau. |
| EP2594547A1 (en) | 2011-11-17 | 2013-05-22 | Solvay Sa | Process for the manufacture of at least one ethylene derivative compound from bioethanol |
| BR112014027338B1 (pt) | 2012-05-16 | 2021-03-23 | China Petroleum & Chemical Corporation | Aparelho para produção de etileno e um método de produção do mesmo |
| FR2998567B1 (fr) * | 2012-11-27 | 2014-12-26 | IFP Energies Nouvelles | Procede de deshydratation d'ethanol en ethylene mettant en oeuvre un pretraitement de la charge |
| FR2998568B1 (fr) | 2012-11-27 | 2015-01-23 | IFP Energies Nouvelles | Procede de deshydratation de l'ethanol en ethylene a basse consommation |
| EP2740718A1 (de) | 2012-12-04 | 2014-06-11 | Linde Aktiengesellschaft | Verfahren zur katalytischen Dehydratisierung von Olefinen |
| US9340470B2 (en) * | 2012-12-26 | 2016-05-17 | Petron Scientech Inc | Process and reactor for dehydration of butanol to butylenes |
| FR3000958B1 (fr) | 2013-01-14 | 2016-01-01 | IFP Energies Nouvelles | Procede de purification du co2 compris dans un flux ethylene issu de la deshydratation de l'ethanol |
| FR3001969B1 (fr) * | 2013-02-12 | 2015-08-21 | IFP Energies Nouvelles | Procede de production d'oxyde d'ethylene a partir d'un flux d'ethanol thermiquement integre |
| FR3001968B1 (fr) * | 2013-02-12 | 2015-02-27 | IFP Energies Nouvelles | Procede de production d'oxyde d'ethylene a partir d'un flux d'ethanol thermo-mecaniquement integre |
| FR3013707B1 (fr) * | 2013-11-27 | 2016-07-29 | Ifp Energies Now | Procede de deshydratation d'un melange contenant de l'ethanol et de l'isopropanol |
| FR3013708B1 (fr) * | 2013-11-27 | 2016-07-29 | Ifp Energies Now | Procede de deshydratation d'un melange contenant de l'ethanol et du n-propanol |
| CN105793213B (zh) * | 2013-12-13 | 2018-06-08 | 陶氏环球技术有限责任公司 | 以顺序次序使用至少两种不同催化剂的烷醇到烯烃的转化 |
| US10661243B2 (en) | 2014-12-16 | 2020-05-26 | Technip E&C Limited | Process and apparatus for ethanol dehydration |
| BR112017014234A2 (pt) | 2014-12-31 | 2018-03-06 | Ifp Energies Now | processo para a preparação olefinas pela desidratação de álcoois com menores efeitos colaterais compreendendo a adição de compostos contendo enxofre |
| US10544067B2 (en) | 2014-12-31 | 2020-01-28 | Total Research & Technology Feluy | Process for preparing olefins by dehydrating alcohols with less side effects comprising addition of organic acids |
| WO2019202405A1 (en) | 2018-04-16 | 2019-10-24 | Braskem, S.A. | Bio-based eva compositions and articles and methods thereof |
| JP7372260B2 (ja) | 2018-04-16 | 2023-10-31 | ブラスケム・エス・エー | バイオベースエラストマーｅｖａ組成物及びその物品及びその方法 |
| US20200040183A1 (en) | 2018-08-01 | 2020-02-06 | Braskem America, Inc. | Thermoplastic compositions having improved toughness, articles therefrom, and methods thereof |
| CN112912434A (zh) | 2018-09-07 | 2021-06-04 | 布拉斯科有限公司 | Co2排放影响低的聚合物组合物及其制备方法 |
| FR3089973B1 (fr) | 2018-12-14 | 2020-12-25 | Ifp Energies Now | Procédé de déshydratation de l'éthanol en éthylène à basse consommation énergétique |
| BR112021016066A2 (pt) | 2019-02-14 | 2021-10-05 | Braskem S.A. | Películas adesivas de fusão a quente compreendendo eva biobaseada, métodos e respectivos artigos |
| WO2020183248A1 (en) | 2019-03-14 | 2020-09-17 | Braskem S.A. | Extrusion coating resin from tubular reactor |
| EP3973028A1 (en) | 2019-05-20 | 2022-03-30 | Braskem S.A. | Hot melt adhesive compositions comprising biobased eva, methods and articles thereof |
| JP7589148B2 (ja) * | 2019-07-05 | 2024-11-25 | 積水化学工業株式会社 | エチレンの製造方法、及び重合体の製造方法 |
| CA3153787A1 (en) | 2019-09-11 | 2021-03-18 | Braskem S.A. | Very soft eva foam and methods thereof |
| US11905396B2 (en) | 2019-09-30 | 2024-02-20 | Enlightened Product Solutions, LLC | Renewably-sourced biodegradable polyolefin packaging, utensils, and containers |
| BR112022007325A2 (pt) | 2019-10-15 | 2022-07-05 | Braskem Sa | Película retrátil, método para preparar a película retrátil, e, uso de uma composição de polímero à base de etileno |
| JP2022553228A (ja) | 2019-10-15 | 2022-12-22 | ブラスケム・エス・エー | バイオベースのｅｖａ組成物並びにその物品及び方法 |
| BR112022007366A2 (pt) | 2019-10-15 | 2022-07-05 | Braskem Sa | Artigos moldados suw incorporando resina pós-consumo e métodos |
| EP4048521A1 (en) | 2019-10-22 | 2022-08-31 | Braskem S.A. | Multilayer structures, stand-up pouches, and methods thereof |
| BR102020005833A2 (pt) | 2020-03-24 | 2021-10-05 | Braskem S.A. | Equipamento para despejo de resíduos e método de produção de um equipamento para despejo de resíduos |
| BR112023002053A2 (pt) | 2020-08-06 | 2023-05-02 | Braskem Sa | Composição, artigo, e, processo para produzir uma composição |
| EP4222205A1 (en) | 2020-10-02 | 2023-08-09 | Braskem S.A. | Ultrasoft eva foam formulation and methods thereof |
| WO2022074465A1 (en) | 2020-10-07 | 2022-04-14 | Braskem S.A. | Eva compositions for footwear |
| JP2023547179A (ja) * | 2020-10-31 | 2023-11-09 | 中国石油化工股▲ふん▼有限公司 | プロピレンの製造方法および製造装置 |
| WO2022112848A1 (en) | 2020-11-27 | 2022-06-02 | Braskem S.A. | Biocompatible low impact co2 emission polymer compositions, pharmaceutical articles and methods of preparing same |
| US20230092207A1 (en) | 2021-09-10 | 2023-03-23 | Braskem S.A. | Polyethylene-based composition and biaxially oriented polyethylene-based articles |
| EP4289807A1 (en) | 2022-06-10 | 2023-12-13 | Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO | Ethanol based intensified ethylene production |
| US20240182801A1 (en) * | 2022-08-30 | 2024-06-06 | Uop Llc | Steam integration in ethanol to jet fuel process |
| WO2024086222A1 (en) | 2022-10-18 | 2024-04-25 | Braskem S.A. | High-barrier multilayer film and packaging container made therefrom |
| WO2024089255A1 (en) | 2022-10-28 | 2024-05-02 | Basf Se | Process for the manufacture of an ethylene-derived chemical of interest, in particular styrene, from renewably-sourced ethanol |
| CN120129670A (zh) | 2022-10-28 | 2025-06-10 | 巴斯夫欧洲公司 | 用于由可再生来源的乙醇制造感兴趣的丙烯衍生的化学品、特别是丙烯酸酯的方法 |
| US20240173687A1 (en) * | 2022-11-30 | 2024-05-30 | Saudi Arabian Oil Company | Adiabatic multi-stage reactors for hydrogen production and related systems and methods |
| CN120379954A (zh) | 2022-12-20 | 2025-07-25 | 巴斯夫欧洲公司 | 与加热蒸汽的产生结合制造所关注的乙烯衍生的化学品、特别是丙烯酸 |
| KR20250126767A (ko) | 2022-12-20 | 2025-08-25 | 바스프 에스이 | 열 에너지의 생산과 조합된 에틸렌-유래된 관심 화학물질의 제조 |
| WO2024258902A1 (en) | 2023-06-13 | 2024-12-19 | Braskem S.A. | Soft eva polymeric compositions and articles and methods thereof |
| FR3153613B1 (fr) | 2023-09-29 | 2025-10-10 | Ifp Energies Now | Procede de production de distillats moyens en particulier de kerosene a partir d’une charge alcoolique |
| WO2025078359A1 (en) | 2023-10-09 | 2025-04-17 | Basf Se | Manufacture of ethylene-derived chemicals having a bio-based carbon content from bio-naphtha |
| WO2025078353A1 (en) | 2023-10-09 | 2025-04-17 | Basf Se | Manufacture of ethylene-derived chemicals having a bio-based carbon content from pyrolysis oil |
| WO2025078362A1 (en) | 2023-10-09 | 2025-04-17 | Basf Se | Process for the manufacture of styrene acrylic copolymers having a renewably-sourced carbon content |
| WO2025132861A1 (en) | 2023-12-21 | 2025-06-26 | ARLANXEO High Performance Elastomers (Changzhou) Co., Ltd. | Polyolefin polymers with low content of volatiles |
| WO2025224042A1 (en) | 2024-04-23 | 2025-10-30 | Basf Se | Process for the manufacture of renewably-sourced n-butanol or 2-ethylhexanol |
| FR3163379A1 (fr) | 2024-06-18 | 2025-12-19 | IFP Energies Nouvelles | Procédé d’hydrogénation des oléfines contenues dans une charge oléfinique de type distillats moyens en présence d’un catalyseur de nickel cuivre |
| WO2026002694A1 (en) | 2024-06-26 | 2026-01-02 | Basf Se | Manufacture of propylene-based chemical(s) from ethylene obtained from ethanol dehydration |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB557378A (en) * | 1942-02-27 | 1943-11-17 | Harry Ferguson Motors Ltd | Improvements in or relating to hitch means for connecting trailed devices to tractive vehicles |
| US3121758A (en) * | 1960-05-26 | 1964-02-18 | Englehard Ind Inc | Dehydration of alcohols |
| BR7705256A (pt) * | 1977-08-09 | 1979-04-03 | Petroleo Brasileiro Sa | Processo e preparacao de eteno |
| US4234752A (en) * | 1979-09-28 | 1980-11-18 | Phillips Petroleum Company | Dehydration of alcohols |
-
1981
- 1981-03-13 BR BR8101487A patent/BR8101487A/pt not_active IP Right Cessation
-
1982
- 1982-02-01 BE BE0/207193A patent/BE891973A/fr not_active IP Right Cessation
- 1982-02-04 PH PH26827A patent/PH17162A/en unknown
- 1982-02-09 IN IN153/CAL/82A patent/IN155485B/en unknown
- 1982-02-11 DE DE19823204733 patent/DE3204733A1/de active Granted
- 1982-02-24 AR AR288555A patent/AR229523A1/es active
- 1982-03-04 GB GB8206341A patent/GB2094829B/en not_active Expired
- 1982-03-11 US US06/357,180 patent/US4396789A/en not_active Expired - Lifetime
- 1982-03-11 ZA ZA821629A patent/ZA821629B/xx unknown
- 1982-03-12 AU AU81350/82A patent/AU547817B2/en not_active Ceased
- 1982-03-12 JP JP57039294A patent/JPS5838220A/ja active Granted
- 1982-03-12 FR FR8204197A patent/FR2501670B1/fr not_active Expired
- 1982-03-12 MX MX191788A patent/MX159230A/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU8135082A (en) | 1982-09-16 |
| AR229523A1 (es) | 1983-09-15 |
| BE891973A (fr) | 1982-05-27 |
| GB2094829A (en) | 1982-09-22 |
| IN155485B (index.php) | 1985-02-09 |
| JPS5838220A (ja) | 1983-03-05 |
| MX159230A (es) | 1989-05-08 |
| FR2501670B1 (fr) | 1986-11-14 |
| ZA821629B (en) | 1983-01-26 |
| FR2501670A1 (fr) | 1982-09-17 |
| US4396789A (en) | 1983-08-02 |
| AU547817B2 (en) | 1985-11-07 |
| PH17162A (en) | 1984-06-13 |
| BR8101487A (pt) | 1982-10-26 |
| JPS6121603B2 (index.php) | 1986-05-28 |
| DE3204733A1 (de) | 1982-11-04 |
| GB2094829B (en) | 1984-03-28 |
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