DD297574A5 - Katalysator fuer die katalytische gasphasenoxidation von olefinen zu ungesaettigten aldehyden - Google Patents
Katalysator fuer die katalytische gasphasenoxidation von olefinen zu ungesaettigten aldehyden Download PDFInfo
- Publication number
- DD297574A5 DD297574A5 DD90343951A DD34395190A DD297574A5 DD 297574 A5 DD297574 A5 DD 297574A5 DD 90343951 A DD90343951 A DD 90343951A DD 34395190 A DD34395190 A DD 34395190A DD 297574 A5 DD297574 A5 DD 297574A5
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- catalyst
- spray
- grain
- temperature
- extruded
- Prior art date
Links
Classifications
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/186—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J27/188—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with chromium, molybdenum, tungsten or polonium
- B01J27/19—Molybdenum
- B01J27/192—Molybdenum with bismuth
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/34—Mechanical properties
- B01J35/37—Crush or impact strength
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/34—Mechanical properties
- B01J35/38—Abrasion or attrition resistance
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/613—10-100 m2/g
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
- C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
- C07C45/33—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties
- C07C45/34—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds
- C07C45/35—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds in propene or isobutene
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3930533A DE3930533C1 (https=) | 1989-09-13 | 1989-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD297574A5 true DD297574A5 (de) | 1992-01-16 |
Family
ID=6389314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD90343951A DD297574A5 (de) | 1989-09-13 | 1990-09-11 | Katalysator fuer die katalytische gasphasenoxidation von olefinen zu ungesaettigten aldehyden |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US5082819A (https=) |
| EP (1) | EP0417722B1 (https=) |
| JP (1) | JP3145101B2 (https=) |
| CN (1) | CN1027045C (https=) |
| AT (1) | ATE97026T1 (https=) |
| AU (1) | AU624024B2 (https=) |
| BR (1) | BR9004581A (https=) |
| DD (1) | DD297574A5 (https=) |
| DE (2) | DE3930533C1 (https=) |
| DK (1) | DK0417722T3 (https=) |
| ES (1) | ES2022070T3 (https=) |
| MX (1) | MX174107B (https=) |
| ZA (1) | ZA907041B (https=) |
Families Citing this family (68)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0784400B2 (ja) * | 1990-04-03 | 1995-09-13 | 株式会社日本触媒 | 不飽和アルデヒドおよび不飽和酸の製造方法 |
| FR2670686B1 (fr) * | 1990-12-20 | 1994-08-12 | Rhone Poulenc Chimie | Composition catalytique pour la preparation d'aldehydes alpha,beta-insatures par oxydation d'olefines en phase gazeuse et procede d'oxydation. |
| FR2670685B1 (fr) * | 1990-12-20 | 1995-03-10 | Rhone Poulenc Chimie | Procede de preparation de catalyseurs enrobes a base de molybdates de bismuth et de fer dopes par du phosphore et du potassium. |
| IT1256156B (it) * | 1992-10-06 | 1995-11-29 | Montecatini Tecnologie Srl | Catalizzatore in granuli particolarmente per la deidrogenazione ossidativa di metanolo a formaldeide |
| IT1282267B1 (it) * | 1995-03-14 | 1998-03-16 | Montecatini Tecnologie Srl | Catalizzatori e supporti per catalizzatori ottenuti per pastigliatura |
| IT1283207B1 (it) * | 1996-03-08 | 1998-04-16 | Montecatini Tecnologie Srl | Catalizzatori per la deidrogenazione di etilbenzene a stirene |
| US6437193B1 (en) | 1997-07-15 | 2002-08-20 | E. I. Du Pont De Nemours And Company | Vapor phase oxidation of propylene to acrolein |
| US6281384B1 (en) | 1998-06-26 | 2001-08-28 | E. I. Du Pont Nemours And Company | Vapor phase catalytic oxidation of propylene to acrylic acid |
| TW511105B (en) | 1999-03-11 | 2002-11-21 | Murata Manufacturing Co | Method of firing magnetic core |
| DE69918672T2 (de) | 1999-05-21 | 2005-07-21 | Evc Technology Ag | Katalysator und Oxychlorinierungsverfahren unter Verwendung derselben |
| US6250722B1 (en) | 1999-11-09 | 2001-06-26 | Deere & Company | Two-piece hub extension |
| ATE306986T1 (de) * | 2000-08-30 | 2005-11-15 | Haldor Topsoe As | Katalysatorpartikel zur hydrobehandlung |
| JP4933709B2 (ja) * | 2001-09-26 | 2012-05-16 | 三菱レイヨン株式会社 | 不飽和カルボン酸合成用触媒の製造方法 |
| WO2003039744A1 (en) * | 2001-11-08 | 2003-05-15 | Mitsubishi Chemical Corporation | Composite oxide catalyst and method for preparation thereof |
| CN101066528B (zh) * | 2001-11-08 | 2010-09-29 | 三菱化学株式会社 | 复合氧化物催化剂及其制备方法 |
| EP1386664B1 (en) * | 2002-07-31 | 2016-05-11 | Ineos Technologies (Vinyls) Limited | A hollow parallelepiped pellet suitable as carrier of catalysts for selective exothermic reactions |
| DE10344149A1 (de) * | 2003-09-22 | 2004-04-08 | Basf Ag | Verfahren zur Herstellung von ringförmigen Vollkatalysatoren |
| MY144024A (en) * | 2003-09-22 | 2011-07-29 | Basf Ag | Preparation of annular unsupported catalysts |
| WO2005035115A1 (en) * | 2003-10-14 | 2005-04-21 | Lg Chem, Ltd. | A catalyst for gaseous partial oxidation of propylene and method for preparing the same |
| WO2005053844A1 (ja) | 2003-12-04 | 2005-06-16 | Mitsubishi Chemical Corporation | 不飽和アルデヒド及び不飽和カルボン酸の製造用触媒の製造方法 |
| JP4806259B2 (ja) * | 2003-12-18 | 2011-11-02 | 三菱レイヨン株式会社 | 不飽和アルデヒドおよび不飽和カルボン酸製造用触媒およびその製造方法ならびに不飽和アルデヒドおよび不飽和カルボン酸の製造方法 |
| SG136121A1 (en) * | 2004-02-10 | 2007-10-29 | Mitsubishi Rayon Co | CATALYST FOR PRODUCING α, β-UNSATURATED CARBOXYLIC ACID AND METHOD FOR PREPARATION THEREOF, AND METHOD FOR PRODUCING α, β- UNSATURATED CARBOXYLIC ACID |
| KR101154764B1 (ko) * | 2004-02-10 | 2012-06-18 | 미츠비시 레이온 가부시키가이샤 | α,β-불포화 카복실산 제조용 촉매 및 그의 제조방법, 및α,β-불포화 카복실산의 제조방법 |
| JP4947756B2 (ja) * | 2005-03-25 | 2012-06-06 | 三菱レイヨン株式会社 | 不飽和アルデヒドおよび不飽和カルボン酸合成用触媒の製造方法、並びに不飽和アルデヒドおよび不飽和カルボン酸の製造方法 |
| US7649111B2 (en) * | 2005-07-25 | 2010-01-19 | Saudi Basic Industries Corporation | Catalyst for the oxidation of a mixed aldehyde feedstock to methacrylic acid and methods for making and using same |
| US7851397B2 (en) * | 2005-07-25 | 2010-12-14 | Saudi Basic Industries Corporation | Catalyst for methacrolein oxidation and method for making and using same |
| US7732367B2 (en) * | 2005-07-25 | 2010-06-08 | Saudi Basic Industries Corporation | Catalyst for methacrolein oxidation and method for making and using same |
| US7649112B2 (en) * | 2005-07-25 | 2010-01-19 | Saudi Basic Industries Corporation | Integrated plant for producing 2-ethyl-hexanol and methacrylic acid and a method based thereon |
| DE102006015710A1 (de) * | 2005-10-14 | 2007-04-26 | Degussa Gmbh | Mischoxidationskatalysatoren für die katalytische Gasphasenoxidation von Olefinen und Verfahren zu ihrer Herstellung |
| JP4749943B2 (ja) * | 2006-06-13 | 2011-08-17 | 東罐興業株式会社 | ホワイトアスパラ栽培用被覆フィルムとそれを用いた栽培用ハウス |
| US7799946B2 (en) * | 2007-02-14 | 2010-09-21 | Saudi Basic Industries Corporation | Process for separating methacrolein from methacrylic acid in a gas phase product from the partial oxidation of isobutene |
| JP5574434B2 (ja) * | 2008-11-06 | 2014-08-20 | 日本化薬株式会社 | メタクリル酸の製造方法及びメタクリル酸製造用触媒 |
| JP2011102249A (ja) * | 2009-11-10 | 2011-05-26 | Nippon Shokubai Co Ltd | アクリル酸の製造方法 |
| DE102010052126A1 (de) | 2010-11-22 | 2012-05-24 | Süd-Chemie AG | Katalysatorformkörper für durchströmte Festbettreaktoren |
| JP5394457B2 (ja) * | 2011-09-02 | 2014-01-22 | 三菱レイヨン株式会社 | 不飽和アルデヒドおよび不飽和カルボン酸合成用触媒、その製造方法、並びに不飽和アルデヒドおよび不飽和カルボン酸の製造方法 |
| US8921257B2 (en) | 2011-12-02 | 2014-12-30 | Saudi Basic Industries Corporation | Dual function partial oxidation catalyst for propane to acrylic acid conversion |
| CA3092028C (en) | 2012-01-13 | 2022-08-30 | Lummus Technology Llc | Process for separating hydrocarbon compounds |
| US8722940B2 (en) | 2012-03-01 | 2014-05-13 | Saudi Basic Industries Corporation | High molybdenum mixed metal oxide catalysts for the production of unsaturated aldehydes from olefins |
| CN103524312A (zh) * | 2012-07-03 | 2014-01-22 | 中国石油化工股份有限公司 | 制备甲基丙烯醛的方法 |
| US9969660B2 (en) | 2012-07-09 | 2018-05-15 | Siluria Technologies, Inc. | Natural gas processing and systems |
| WO2014089479A1 (en) | 2012-12-07 | 2014-06-12 | Siluria Technologies, Inc. | Integrated processes and systems for conversion of methane to multiple higher hydrocarbon products |
| US10047020B2 (en) | 2013-11-27 | 2018-08-14 | Siluria Technologies, Inc. | Reactors and systems for oxidative coupling of methane |
| EP3092286A4 (en) | 2014-01-08 | 2017-08-09 | Siluria Technologies, Inc. | Ethylene-to-liquids systems and methods |
| US10377682B2 (en) | 2014-01-09 | 2019-08-13 | Siluria Technologies, Inc. | Reactors and systems for oxidative coupling of methane |
| CA2935946C (en) | 2014-01-09 | 2022-05-03 | Siluria Technologies, Inc. | Oxidative coupling of methane implementations for olefin production |
| EP3263213B1 (en) * | 2015-02-27 | 2020-02-12 | Nippon Kayaku Kabushiki Kaisha | Catalyst for manufacturing unsaturated aldehyde and/or unsaturated carboxylic acid and manufacturing method of same, and manufacturing method of unsaturated aldehyde and/or unsaturated carboxylic acid |
| US9334204B1 (en) | 2015-03-17 | 2016-05-10 | Siluria Technologies, Inc. | Efficient oxidative coupling of methane processes and systems |
| US10793490B2 (en) | 2015-03-17 | 2020-10-06 | Lummus Technology Llc | Oxidative coupling of methane methods and systems |
| WO2016156042A1 (de) | 2015-03-27 | 2016-10-06 | Basf Se | Katalysatorformkörper für die katalytische oxidation von so2 zu so3 |
| US20160289143A1 (en) | 2015-04-01 | 2016-10-06 | Siluria Technologies, Inc. | Advanced oxidative coupling of methane |
| US9328297B1 (en) | 2015-06-16 | 2016-05-03 | Siluria Technologies, Inc. | Ethylene-to-liquids systems and methods |
| JP6540422B2 (ja) * | 2015-09-24 | 2019-07-10 | 三菱ケミカル株式会社 | 複合酸化物触媒 |
| EP3786138A1 (en) | 2015-10-16 | 2021-03-03 | Lummus Technology LLC | Oxidative coupling of methane |
| KR20180100178A (ko) * | 2016-01-09 | 2018-09-07 | 어센드 퍼포먼스 머티리얼즈 오퍼레이션즈 엘엘씨 | 아크릴로나이트릴 반응기 공급 스트림에서 사이안화 수소의 직접 제조를 위한 촉매 조성물 및 공정 |
| CN107282056B (zh) * | 2016-04-13 | 2020-12-29 | 中国石油化工股份有限公司 | 丙烯氧化合成丙烯醛和丙烯酸的催化剂 |
| EP4071131A1 (en) | 2016-04-13 | 2022-10-12 | Lummus Technology LLC | Apparatus and method for exchanging heat |
| WO2018118105A1 (en) | 2016-12-19 | 2018-06-28 | Siluria Technologies, Inc. | Methods and systems for performing chemical separations |
| WO2018114900A1 (en) * | 2016-12-20 | 2018-06-28 | Shell Internationale Research Maatschappij B.V. | Oxidative dehydrogenation (odh) of ethane |
| KR20200034961A (ko) | 2017-05-23 | 2020-04-01 | 루머스 테크놀로지 엘엘씨 | 메탄의 산화적 커플링 공정의 통합 |
| EP3649097A4 (en) | 2017-07-07 | 2021-03-24 | Lummus Technology LLC | SYSTEMS AND PROCESSES FOR THE OXIDATIVE COUPLING OF METHANE |
| EP3431178A1 (de) | 2017-07-20 | 2019-01-23 | Basf Se | Katalysatoren und verfahren für die katalytische oxidation von so2 zu so3 |
| CN111788002B (zh) | 2018-03-07 | 2024-02-20 | 巴斯夫欧洲公司 | 具有均匀壁厚度的四叶体形式的催化剂成型体 |
| RU2020132866A (ru) | 2018-03-07 | 2022-04-07 | Басф Се | Формованное тело катализатора в форме четырехлистника с центральным сквозным отверстием |
| EP3569308A1 (de) | 2018-05-18 | 2019-11-20 | Basf Se | Formkörper in form von multiloben |
| MY204840A (en) * | 2019-03-27 | 2024-09-18 | Mitsubishi Chem Corp | Catalyst molded article, catalyst molded article for producing methacrolein and/or methacrylic acid, and method for producing methacrolein and/or methacrylic acid |
| CN112569957A (zh) * | 2019-09-29 | 2021-03-30 | 中国石油化工股份有限公司 | 一种烯烃氧化催化剂及其制备方法和应用 |
| WO2021211466A1 (en) | 2020-04-14 | 2021-10-21 | Kellogg Brown & Root Llc | Method for catalyst production for c5-c12 paraffin's isomerization |
| US12227466B2 (en) | 2021-08-31 | 2025-02-18 | Lummus Technology Llc | Methods and systems for performing oxidative coupling of methane |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2941007A (en) * | 1957-06-10 | 1960-06-14 | Standard Oil Co | Process for the oxidation of olefins |
| FR2016707A1 (https=) * | 1968-08-31 | 1970-05-08 | Degussa | |
| JPS5498717A (en) * | 1978-01-17 | 1979-08-03 | Nippon Zeon Co Ltd | Preparation of unsaturated carboxylic acid |
| DE3125061C2 (de) * | 1981-06-26 | 1984-03-15 | Degussa Ag, 6000 Frankfurt | Verfahren zur Herstellung von Acrolein bzw. Methacrolein durch katalytische Oxidation von Propylen bzw. Isobutylen oder tertiär-Butanol in sauerstoffhaltigen Gasgemischen |
| JPS58119346A (ja) * | 1982-01-06 | 1983-07-15 | Nippon Shokubai Kagaku Kogyo Co Ltd | プロピレン酸化用触媒 |
| JPS5946132A (ja) * | 1982-09-06 | 1984-03-15 | Nippon Shokubai Kagaku Kogyo Co Ltd | メタクロレイン合成用触媒 |
| US4537874A (en) * | 1982-10-22 | 1985-08-27 | Nippon Shokubai Kagaku Kogyo Co Ltd | Catalyst for production of unsaturated aldehydes |
| US4510261A (en) * | 1983-10-17 | 1985-04-09 | W. R. Grace & Co. | Catalyst with high geometric surface area |
| EP0296285B1 (en) * | 1987-06-24 | 1992-07-29 | The Dow Chemical Company | A dehydrogenation catalyst having improved moisture stability and a process for making the same |
| CN1009340B (zh) * | 1986-03-24 | 1990-08-29 | 三菱油化株式会社 | 含钼-铋的复合氧化物催化剂的制法 |
| EP0279374B1 (en) * | 1987-02-17 | 1992-01-02 | Nippon Shokubai Kagaku Kogyo Co., Ltd | Catalyst for oxidation of olefin or tertiary alcohol and process for production thereof |
| DE3740271A1 (de) * | 1987-11-27 | 1989-06-01 | Basf Ag | Verfahren zur herstellung einer fuer die gasphasenoxidation von propylen zu acrolein und acrylsaeure katalytisch aktiven masse |
| DE3827639A1 (de) * | 1988-08-16 | 1990-02-22 | Basf Ag | Katalysator fuer die oxidation und ammonoxidation von (alpha),ss-ungesaettigten kohlenwasserstoffen |
-
1989
- 1989-09-13 DE DE3930533A patent/DE3930533C1/de not_active Expired - Lifetime
-
1990
- 1990-09-04 ZA ZA907041A patent/ZA907041B/xx unknown
- 1990-09-11 ES ES90117464T patent/ES2022070T3/es not_active Expired - Lifetime
- 1990-09-11 DE DE90117464T patent/DE59003442D1/de not_active Expired - Fee Related
- 1990-09-11 DD DD90343951A patent/DD297574A5/de not_active IP Right Cessation
- 1990-09-11 DK DK90117464.9T patent/DK0417722T3/da active
- 1990-09-11 AT AT90117464T patent/ATE97026T1/de not_active IP Right Cessation
- 1990-09-11 EP EP90117464A patent/EP0417722B1/de not_active Expired - Lifetime
- 1990-09-12 AU AU62459/90A patent/AU624024B2/en not_active Ceased
- 1990-09-12 MX MX022353A patent/MX174107B/es unknown
- 1990-09-13 CN CN90107664A patent/CN1027045C/zh not_active Expired - Fee Related
- 1990-09-13 BR BR909004581A patent/BR9004581A/pt not_active IP Right Cessation
- 1990-09-13 US US07/581,702 patent/US5082819A/en not_active Expired - Lifetime
- 1990-09-13 JP JP24137590A patent/JP3145101B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1027045C (zh) | 1994-12-21 |
| ZA907041B (en) | 1991-06-26 |
| EP0417722B1 (de) | 1993-11-10 |
| DE59003442D1 (de) | 1993-12-16 |
| DK0417722T3 (da) | 1996-04-22 |
| US5082819A (en) | 1992-01-21 |
| CN1050340A (zh) | 1991-04-03 |
| ATE97026T1 (de) | 1993-11-15 |
| AU624024B2 (en) | 1992-05-28 |
| JP3145101B2 (ja) | 2001-03-12 |
| EP0417722A1 (de) | 1991-03-20 |
| ES2022070T3 (es) | 1994-03-01 |
| BR9004581A (pt) | 1991-09-10 |
| JPH03109946A (ja) | 1991-05-09 |
| AU6245990A (en) | 1991-03-21 |
| MX174107B (es) | 1994-04-21 |
| ES2022070A4 (es) | 1991-12-01 |
| DE3930533C1 (https=) | 1991-05-08 |
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