ES2067695T3 - Metodo para la produccion de acido acrilico. - Google Patents
Metodo para la produccion de acido acrilico.Info
- Publication number
- ES2067695T3 ES2067695T3 ES90312130T ES90312130T ES2067695T3 ES 2067695 T3 ES2067695 T3 ES 2067695T3 ES 90312130 T ES90312130 T ES 90312130T ES 90312130 T ES90312130 T ES 90312130T ES 2067695 T3 ES2067695 T3 ES 2067695T3
- Authority
- ES
- Spain
- Prior art keywords
- equal
- less
- production
- acrylic acid
- selected element
- 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
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 abstract 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 229910001882 dioxygen Inorganic materials 0.000 abstract 1
- 239000007792 gaseous phase Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C57/00—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms
- C07C57/02—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms with only carbon-to-carbon double bonds as unsaturation
- C07C57/03—Monocarboxylic acids
- C07C57/04—Acrylic acid; Methacrylic acid
-
- 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
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/888—Tungsten
- B01J23/8885—Tungsten containing also molybdenum
-
- 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
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- 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
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/88—Molybdenum
- B01J23/885—Molybdenum and copper
-
- 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
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/88—Molybdenum
- B01J23/887—Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/8877—Vanadium, tantalum, niobium or polonium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/25—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring
- C07C51/252—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring of propene, butenes, acrolein or methacrolein
-
- 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
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Abstract
UN METODO PARA LA PRODUCCION DE ACIDO ACRILICO POR OXIDACION DE LA FASE GASEOSA DE LA ACROLEINA CON UN GAS CONTENIENDO OXIGENO MOLECULAR EN PRESENCIA DE UN CATALIZADOR FORMADO POR UN OXIDO O UN COMPUESTO DE OXIDO DE UNA COMPOSICION DE ELEMENTO METALICO REPRESENTADA POR LA SIGUIENTE FORMULA I: DONDE X ES AL MENOS UN ELEMENTO SELECCIONADO DEL GRUPO CONSISTENTE DE ZR, TI Y CE, Y ES AL MENOS UN ELEMENTO SELECCIONADO DEL GRUPO CONSISTENTE DE MG CA, SR Y BA Y LOS SUBESCRITOS A, B, C, D, E Y F SON TALES QUE B = 2 A 14, 0<C (MENOR O IGUAL) 12, 0<D (MENOR O IGUAL) 6, 0<E (MENOR O IGUAL) 10, Y F = 0 A 3 DONDE A ESTA FIJA EN 12, 2.0<CU+X (MENOR O IGUAL) 10.0 Y 0.25 (MENOR O IGUAL) CU/X (MENOR O IGUAL) 6.0.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28751889 | 1989-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2067695T3 true ES2067695T3 (es) | 1995-04-01 |
Family
ID=17718382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES90312130T Expired - Lifetime ES2067695T3 (es) | 1989-11-06 | 1990-11-06 | Metodo para la produccion de acido acrilico. |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US5177260A (es) |
| EP (1) | EP0427508B1 (es) |
| KR (1) | KR950003119B1 (es) |
| CN (2) | CN1031050C (es) |
| AU (1) | AU639500B2 (es) |
| BR (1) | BR9005603A (es) |
| CA (1) | CA2029277A1 (es) |
| DE (1) | DE69016590T2 (es) |
| ES (1) | ES2067695T3 (es) |
| MX (1) | MX171566B (es) |
| RU (1) | RU2024296C1 (es) |
Families Citing this family (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4302991A1 (de) * | 1993-02-03 | 1994-08-04 | Basf Ag | Multimetalloxidmassen |
| KR100210642B1 (ko) * | 1994-05-31 | 1999-07-15 | 겐지 아이다 | 메타크릴산 제조용촉매 및 이 촉매를 이용한 메타크릴산의 제조방법 |
| KR100247524B1 (ko) | 1994-05-31 | 2000-03-15 | 겐지 아이다 | 아크릴산 제조용 촉매 및 이 촉매를 이용한 아크릴산의 제조방법 |
| DE4431949A1 (de) * | 1994-09-08 | 1995-03-16 | Basf Ag | Verfahren zur katalytischen Gasphasenoxidation von Acrolein zu Acrylsäure |
| EP0811597B1 (en) * | 1994-11-14 | 2000-08-23 | Nippon Shokubai Co., Ltd. | Process for production of acrylic acid |
| JP3786297B2 (ja) * | 1995-03-03 | 2006-06-14 | 日本化薬株式会社 | 触媒の製造方法 |
| JP3537253B2 (ja) * | 1996-03-06 | 2004-06-14 | 株式会社日本触媒 | アクリル酸の製造方法 |
| DE19622331A1 (de) | 1996-06-04 | 1997-12-11 | Basf Ag | Verfahren der heterogen katalysierten Gasphasenoxidation von Propan zu Acrolein |
| MY121878A (en) * | 1999-03-10 | 2006-02-28 | Basf Ag | Method for the catalytic gas-phase oxidation of propene into acrylic acid |
| DE60000708T2 (de) | 1999-06-28 | 2003-07-24 | Rohm And Haas Co., Philadelphia | Verfahren zur Herstellung von (Meth)acrylsäure |
| US6639106B1 (en) | 1999-07-23 | 2003-10-28 | Rohm And Haas Company | Process for preparing and purifying acrylic acid from propylene having improved capacity |
| US6620968B1 (en) | 1999-11-23 | 2003-09-16 | Rohm And Haas Company | High hydrocarbon space velocity process for preparing unsaturated aldehydes and acids |
| JP3744750B2 (ja) * | 1999-12-08 | 2006-02-15 | 株式会社日本触媒 | 複合酸化物触媒およびアクリル酸の製造方法 |
| US6444845B1 (en) | 2000-04-28 | 2002-09-03 | Saudia Basic Industries Corporation | Process for the oxidation of unsaturated aldehydes to produce carboxylic acids using Mo-V based catalysts |
| US6531631B1 (en) | 2000-04-28 | 2003-03-11 | Saudi Basic Industries Corporation | Oxidation of ethane to acetic acid and ethylene using molybdenum and vanadium based catalysts |
| FR2811243A1 (fr) * | 2000-07-04 | 2002-01-11 | Atofina | Compositions solides utiles dans la fabrication de l'acide acrylique par oxydation de l'acroleine |
| JP5134745B2 (ja) | 2001-09-19 | 2013-01-30 | 株式会社日本触媒 | アクリル酸の製造方法 |
| EP1319648B1 (en) * | 2001-12-14 | 2008-04-02 | Stockhausen GmbH | Process for the production of acrylic acid |
| CN1607031A (zh) * | 2001-12-28 | 2005-04-20 | 三菱化学株式会社 | 装填催化剂的方法 |
| KR100497173B1 (ko) * | 2002-11-29 | 2005-06-28 | 주식회사 엘지화학 | 아크롤레인의 부분 산화 반응용 촉매의 제조방법 |
| EP1613574A1 (de) * | 2003-04-07 | 2006-01-11 | Basf Aktiengesellschaft | Verfahren zur herstellung von wenigstens einem partiellen oxidations- und/oder ammoxidationsprodukt eines kohlenwasserstoffs |
| EP1656335A1 (de) | 2003-08-14 | 2006-05-17 | Basf Aktiengesellschaft | Verfahren zur herstellung von (meth)acrolein und/oder (meth)acryls ure |
| JP2005336142A (ja) * | 2004-05-31 | 2005-12-08 | Mitsubishi Chemicals Corp | (メタ)アクリル酸の製造装置及び(メタ)アクリル酸の製造方法 |
| MX2008015540A (es) | 2007-12-26 | 2009-06-26 | Rohm Ahd Haas Company | Un proceso integrado para preparar un acido carboxilico a partir de un alcano. |
| EP2143704A1 (en) | 2008-07-10 | 2010-01-13 | Rohm and Haas Company | An integrated process for preparing a carboxylic acid from an alkane |
| WO2010038677A1 (ja) * | 2008-09-30 | 2010-04-08 | 株式会社日本触媒 | アクロレインおよび/またはアクリル酸製造用の触媒および該触媒を用いたアクロレインおよび/またはアクリル酸の製造方法 |
| US8404887B2 (en) | 2008-12-26 | 2013-03-26 | Nippon Shokubai Co., Ltd. | Process for producing acrylic acid |
| CN101507927B (zh) * | 2009-02-10 | 2011-12-21 | 上海华谊丙烯酸有限公司 | 一种复合氧化物催化剂的制备方法及其在合成丙烯酸工艺中的应用 |
| CN102040505B (zh) * | 2009-10-13 | 2014-04-23 | 中国石油化工股份有限公司 | 由不饱和醛氧化制不饱和酸的方法 |
| CN102039141B (zh) * | 2009-10-13 | 2012-11-14 | 中国石油化工股份有限公司 | 由不饱和醛氧化制不饱和酸的催化剂及其制备方法 |
| EP2507199A2 (de) | 2009-12-04 | 2012-10-10 | Basf Se | Herstellung von acetaldehyd und/oder essigsäure aus bioethanol |
| CN102371158A (zh) * | 2010-08-23 | 2012-03-14 | 中国石油化工股份有限公司 | 氧化法制丙烯酸催化剂及其制备方法 |
| DE102010040923A1 (de) | 2010-09-16 | 2012-03-22 | Basf Se | Verfahren zur Herstellung von Acrylsäure aus Ethanol und Formaldehyd |
| CA2781246A1 (en) | 2011-07-14 | 2013-01-14 | Rohm And Haas Company | Method for removal of organic compounds from waste water streams in a process for production of (meth)acrylic acid |
| JP7068309B2 (ja) | 2016-12-21 | 2022-05-16 | コーニング インコーポレイテッド | 焼結システム及び焼結済み物品 |
| CN109304157A (zh) * | 2017-07-28 | 2019-02-05 | 中国石油化工股份有限公司 | 丙烯醛氧化制丙烯酸的催化剂 |
| CN110694635A (zh) * | 2019-11-25 | 2020-01-17 | 上海华谊新材料有限公司 | 钼钒系复合氧化物催化剂、其制备方法和用途 |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1106648A (en) * | 1965-11-10 | 1968-03-20 | Distillers Co Yeast Ltd | Improvements in or relating to the production of unsaturated aliphatic acids |
| US3567772A (en) * | 1966-03-30 | 1971-03-02 | Toa Gosei Chem Ind | Process for the production of acrylic acid |
| DE2050155C3 (de) * | 1970-10-13 | 1978-08-31 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | Verfahren zur Herstellung eines Antimon, Molybdän, Vanadin und Wolfram enthaltenden Oxydationskatalysators |
| US3867438A (en) * | 1970-10-13 | 1975-02-18 | Degussa | Process for the oxidation of {60 ,{62 -unsaturated aldehydes to {60 ,{62 -unsaturated carboxylic acids |
| JPS5246208B2 (es) * | 1973-03-22 | 1977-11-22 | ||
| US4333858A (en) * | 1973-10-23 | 1982-06-08 | Union Carbide Corporation | Catalyst with Mo, V, Ti and process |
| CA1045106A (en) * | 1973-10-23 | 1978-12-26 | Harry J. Decker | Catalyst with mo, v, ti and process for preparing unsaturated acids |
| US4414411A (en) * | 1973-10-23 | 1983-11-08 | Union Carbide Corporation | Process for preparing unsaturated acids with Mo, V, Ti-containing catalysts |
| CA1018186A (en) * | 1973-10-25 | 1977-09-27 | Serge R. Dolhyj | Catalyst compositions especially useful for preparation of unsaturated acids |
| US4359407A (en) * | 1973-12-26 | 1982-11-16 | Standard Oil Company | Catalyst compositions especially useful for preparation of unsaturated acids |
| US4163862A (en) * | 1974-09-13 | 1979-08-07 | Standard Oil Company (Ohio) | Preparation of unsaturated acids |
| IT1025611B (it) * | 1974-11-12 | 1978-08-30 | Montedison Spa | Procedimento per la preparazione di acidi carbossilici insaturi per ossidazione catalitica in fase gassosa delle corrispondenti aldeidi |
| IT1025610B (it) * | 1974-11-12 | 1978-08-30 | Montedison Spa | Procedimento per la preparazione di acidi carbossilici insaturi per ossidazione catalitica in fase gassosa delle corrispondenti aldeidi |
| US4039582A (en) * | 1975-12-29 | 1977-08-02 | Gakif Zakirovich Nasyrov | Method of preparing vanadium pentoxide |
| DE2909671A1 (de) * | 1979-03-12 | 1980-10-02 | Basf Ag | Verfahren zur herstellung von schalenkatalysatoren |
| US4419270A (en) * | 1980-06-26 | 1983-12-06 | Nippon Shokubai Kagaku Kogyo Co. Ltd. | Oxidation catalyst |
| DE3308625A1 (de) * | 1983-03-11 | 1984-09-13 | Basf Ag, 6700 Ludwigshafen | Verfahren und katalysator zur herstellung von methacrylsaeure |
| ES2028180T3 (es) * | 1987-06-05 | 1992-07-01 | Nippon Shokubai Kagaku Kogyo Kabushiki Kaisha | Catalizador para la oxidacion de acroleina y procedimiento para su preparacion. |
-
1990
- 1990-11-05 CA CA002029277A patent/CA2029277A1/en not_active Abandoned
- 1990-11-05 RU SU904831751A patent/RU2024296C1/ru not_active IP Right Cessation
- 1990-11-05 KR KR1019900017851A patent/KR950003119B1/ko not_active Expired - Fee Related
- 1990-11-05 US US07/608,832 patent/US5177260A/en not_active Expired - Lifetime
- 1990-11-06 MX MX023202A patent/MX171566B/es unknown
- 1990-11-06 CN CN90109660A patent/CN1031050C/zh not_active Expired - Fee Related
- 1990-11-06 DE DE69016590T patent/DE69016590T2/de not_active Expired - Fee Related
- 1990-11-06 ES ES90312130T patent/ES2067695T3/es not_active Expired - Lifetime
- 1990-11-06 EP EP90312130A patent/EP0427508B1/en not_active Expired - Lifetime
- 1990-11-06 BR BR909005603A patent/BR9005603A/pt not_active IP Right Cessation
- 1990-11-07 AU AU65876/90A patent/AU639500B2/en not_active Ceased
-
1995
- 1995-05-19 CN CN95105259A patent/CN1070468C/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1070468C (zh) | 2001-09-05 |
| DE69016590D1 (de) | 1995-03-16 |
| EP0427508B1 (en) | 1995-02-01 |
| EP0427508A1 (en) | 1991-05-15 |
| DE69016590T2 (de) | 1995-06-01 |
| CN1054972A (zh) | 1991-10-02 |
| KR950003119B1 (ko) | 1995-04-01 |
| AU6587690A (en) | 1991-05-09 |
| US5177260A (en) | 1993-01-05 |
| MX171566B (es) | 1993-11-05 |
| BR9005603A (pt) | 1991-09-17 |
| CN1031050C (zh) | 1996-02-21 |
| CN1121504A (zh) | 1996-05-01 |
| KR910009625A (ko) | 1991-06-28 |
| CA2029277A1 (en) | 1991-05-07 |
| AU639500B2 (en) | 1993-07-29 |
| RU2024296C1 (ru) | 1994-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MX171566B (es) | Metodo para la produccion de acido acrilico | |
| JPS557239A (en) | Preparation of dicarboxylic diester | |
| ES8607243A1 (es) | Esteres de aminoacidos y de peptidos cromogenos | |
| ES418548A1 (es) | Procedimiento para la obtencion de acido acrilico. | |
| GB1327738A (en) | Catalyst for the conversion of hydrocarbons and its manufacture and use | |
| ES461935A1 (es) | Procedimiento para la obtencion de acido metacrilico por o- xidacion de metacroleina. | |
| DE810503C (de) | Verfahren zur Abtrennung von Kohlenmonoxyd aus einem kohlenmonoxyd- und stickstoffmonoxydenthaltenden Gasgemisch | |
| ES2042955T3 (es) | Procedimiento para la fabricacion de acido metacrilico mediante oxidacion de metacroleina. | |
| ES8201130A1 (es) | Un metodo para preparar derivados de oxima e imina de 2-ni- tro-5-(fenoxi sustituido)-fenilalcanona | |
| KR960701039A (ko) | 케톤의 산화방법 | |
| ES8609314A1 (es) | Procedimiento pra la preparacion de 1,4-dihidropiridinas sustituidas,opticamente activas | |
| JPS5226391A (en) | Catalyst used for production of carboxylic acid ester | |
| KR900004669A (ko) | 이소부틸렌을 산화시켜 메타크롤레인을 생성시키고, 이를 산화시켜 메타크릴산을 생성시키기 위한 무수 희석제 | |
| JPS57177348A (en) | Oxidizing catalyst and preparation thereof | |
| KR960017503A (ko) | 염화수소의 산화 방법 | |
| GB1387497A (en) | Process for the production of anthraquinone | |
| JPS51136640A (en) | Process for continuous preparation of high purity terephthalic acid | |
| ES8300690A1 (es) | Procedimiento para la preparacion de esteres de acidos 3- acilazopropionicos, asi como sus acilhidrazonas de esteres de acido formilacetico isomeras | |
| JPS5217412A (en) | Process for preparation of alkyleneglycolesters | |
| JPS532424A (en) | Preparation of p-xylene | |
| JPS5517348A (en) | Production of high-purity terephthalic acid | |
| GB1152878A (en) | Process for the production of Nitriles of Pyridine Carboxylic Acid-(3) and Pyridine Carboxylic Acid-(4) | |
| GB1261167A (en) | Improvements in or relating to a method for purifying benzene | |
| JPS6466142A (en) | Production of unsaturated carboxylic acid and ester thereof | |
| JPS5692832A (en) | Preparation of aromatic polycarboxylic acid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
Ref document number: 427508 Country of ref document: ES |