BE822857A - Production d'oxydes d'alkylene et catalyseurs utiles a cette fin - Google Patents

Production d'oxydes d'alkylene et catalyseurs utiles a cette fin

Info

Publication number
BE822857A
BE822857A BE151075A BE151075A BE822857A BE 822857 A BE822857 A BE 822857A BE 151075 A BE151075 A BE 151075A BE 151075 A BE151075 A BE 151075A BE 822857 A BE822857 A BE 822857A
Authority
BE
Belgium
Prior art keywords
production
alkylene oxides
catalysts useful
catalysts
useful
Prior art date
Application number
BE151075A
Other languages
English (en)
French (fr)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of BE822857A publication Critical patent/BE822857A/xx

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/66Silver or gold
    • B01J23/68Silver or gold with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/66Silver or gold
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D301/00Preparation of oxiranes
    • C07D301/02Synthesis of the oxirane ring
    • C07D301/03Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
    • C07D301/04Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen
    • C07D301/08Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase
    • C07D301/10Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase with catalysts containing silver or gold
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/52Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE151075A 1973-12-05 1974-12-02 Production d'oxydes d'alkylene et catalyseurs utiles a cette fin BE822857A (fr)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
GB56369/73A GB1491447A (en) 1973-12-05 1973-12-05 Alkylene oxide production and catalysts therefor
GB97474 1974-01-09
GB97274 1974-01-09
GB1478774 1974-04-03
GB1478674 1974-04-03
GB2327674 1974-05-24
GB2327874 1974-05-24
GB2407174 1974-05-30
GB2407274 1974-05-30
GB3433374 1974-08-05
GB3635774 1974-08-19
GB4088274 1974-09-19

Publications (1)

Publication Number Publication Date
BE822857A true BE822857A (fr) 1975-06-02

Family

ID=27583026

Family Applications (1)

Application Number Title Priority Date Filing Date
BE151075A BE822857A (fr) 1973-12-05 1974-12-02 Production d'oxydes d'alkylene et catalyseurs utiles a cette fin

Country Status (10)

Country Link
US (1) US4007135A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AR (1) AR208300A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AU (1) AU496988B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE822857A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1056798A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH611286A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DD (1) DD114947A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2253747B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1491447A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL7415798A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (98)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1569974A (en) * 1976-03-05 1980-06-25 Ici Ltd Restoration of selectivity to catalysts used in the production of olefine oxides
US4212772A (en) * 1976-05-19 1980-07-15 Basf Aktiengesellschaft Catalyst for the manufacture of ethylene oxide
IT1078404B (it) * 1976-05-19 1985-05-08 Basf Ag Catalizzatore per la preparazione di ossido di etilene
US4168247A (en) * 1976-05-28 1979-09-18 Imperial Chemical Industries Limited Catalysts for the production of alkylene oxides
DE2636680C3 (de) * 1976-08-14 1979-04-05 Hoechst Ag, 6000 Frankfurt Verfahren zur Verbesserung der Wirksamkeit von Silber-Trägerkatalysatoren
US4374260A (en) * 1976-08-30 1983-02-15 Texaco Inc. Ethylene oxide production
US4097414A (en) * 1976-08-30 1978-06-27 Texaco Development Corp. Modified ethylene oxide catalyst and a process for its preparation
GB1575810A (en) * 1976-10-21 1980-10-01 Shell Int Research Process for the performance of silver catalysts
US4087385A (en) * 1977-03-23 1978-05-02 The Dow Chemical Company Process for making a silver catalyst for oxidizing ethylene to ethylene oxide
DE2819595A1 (de) * 1977-05-12 1978-12-07 Basf Ag Katalysator zur herstellung von aethylenoxid
GB1594362A (en) * 1977-05-23 1981-07-30 Ici Ltd Production of alkylene oxides and catalysts therefor
EP0002045B1 (de) * 1977-11-19 1981-09-02 BASF Aktiengesellschaft Verfahren zur Herstellung eines Äthylenoxydkatalysators
US5387751A (en) * 1978-02-10 1995-02-07 Imperial Chemical Industries Plc Production of olefine oxides
US4321206A (en) * 1978-08-04 1982-03-23 Texaco Development Corporation Ethylene oxide production
US4224194A (en) * 1979-02-26 1980-09-23 Texaco Development Corp. Process for preparing an ethylene oxide catalyst
US4229321A (en) * 1979-02-26 1980-10-21 Texaco Development Corp. Process for making a silver catalyst
US4342667A (en) * 1979-03-26 1982-08-03 The Halcon Sd Group, Inc. Process for preparing a silver catalyst
JPS56105750A (en) * 1980-01-24 1981-08-22 Nippon Shokubai Kagaku Kogyo Co Ltd Silver catalyst for production of ethylene oxide
FR2495958A1 (fr) * 1980-12-12 1982-06-18 Gau Georges Catalyseurs a l'argent pour la synthese de l'oxyde d'ethylene et de l'oxyde de propylene par un procede regeneratif
US4361504A (en) * 1981-09-04 1982-11-30 The Dow Chemical Company Process for making a silver catalyst useful in ethylene oxide production
NL8201396A (nl) * 1982-04-01 1983-11-01 Dow Chemical Nederland Zilver katalysator en een werkwijze voor de bereiding daarvan.
DE3239886A1 (de) * 1982-10-28 1984-05-03 Basf Ag, 6700 Ludwigshafen Verfahren zur regenerierung des al(pfeil abwaerts)2(pfeil abwaerts)o(pfeil abwaerts)3(pfeil abwaerts)-traegermaterials gebrauchter ag/al(pfeil abwaerts)2(pfeil abwaerts)o(pfeil abwaerts)3(pfeil abwaerts)-traegerkatalysatoren
JPS6110570A (ja) * 1984-06-25 1986-01-18 Mitsui Toatsu Chem Inc エチレンオキシドの製造方法
US4690913A (en) * 1984-08-21 1987-09-01 Mitsubishi Petrochemical Co., Ltd. Silver catalyst for production of ethylene oxide from ethylene and process for producing the catalyst
US4859786A (en) * 1985-07-31 1989-08-22 The Dow Chemical Company Olefin oxidation catalyst of unsupported silver containing low levels of magnesium
DE3528313A1 (de) * 1985-08-07 1987-02-12 Basf Ag Silberkatalysator, seine herstellung und verwendung
US4894467A (en) * 1986-10-16 1990-01-16 The Standard Oil Company Vapor phase oxidation or styrene to styrene oxide
US4845253A (en) * 1987-11-23 1989-07-04 The Dow Chemical Company Silver-based catalyst for vapor phase oxidation of olefins to epoxides
DE68925767T2 (de) * 1988-08-30 1996-08-14 Union Carbide Corp Katalysatoren für die Herstellung von Ethylenoxid und Verfahren zur deren Herstellung
CA1337722C (en) * 1989-04-18 1995-12-12 Madan Mohan Bhasin Alkylene oxide catalysts having enhanced activity and/or stability
US5187140A (en) * 1989-10-18 1993-02-16 Union Carbide Chemicals & Plastics Technology Corporation Alkylene oxide catalysts containing high silver content
US5173469A (en) * 1989-11-09 1992-12-22 Huels Aktiengesellschaft Silver catalyst suitable for oxidation of ethylene and process for the production of the catalyst
US5081096A (en) * 1990-07-25 1992-01-14 Eastman Kodak Company Epoxidation catalyst
KR0147853B1 (ko) 1990-10-12 1998-08-17 티모시 엔. 비숍 활성 및/또는 안정성이 개선된 알킬렌 옥사이드 촉매
US5407888A (en) * 1992-05-12 1995-04-18 Basf Aktiengesellschaft Silver catalyst
US5502020A (en) * 1993-04-14 1996-03-26 Mitsubishi Petrochemical Co., Ltd. Catalyst for production of ethylene oxide and process for producing the catalyst
EP0640598B1 (en) * 1993-08-06 2000-11-22 Sumitomo Chemical Company Limited Process for producing olefin oxides
JPH10507965A (ja) * 1994-11-01 1998-08-04 シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ エチレンオキシド触媒の調製方法
ES2155111T3 (es) 1994-12-15 2001-05-01 Shell Int Research Procedimiento para preparar catalizadores para la obtencion de oxido de etileno.
US5625084A (en) * 1996-01-31 1997-04-29 Arco Chemical Technology, L.P. Vapor phase oxidation of propylene to propylene oxide
ES2168653T3 (es) 1996-07-01 2002-06-16 Dow Chemical Co Procedimiento para la oxidacion directa de olefinas a oxidos de olefinas.
US5698719A (en) * 1996-09-12 1997-12-16 Arco Chemical Tehnology, L.P. Oxirane production
US5703254A (en) * 1996-10-02 1997-12-30 Arco Chemical Technology, L.P. Propylene oxide process using mixed precious metal catalyst supported on alkaline earth metal carbonate
US5736483A (en) * 1996-10-25 1998-04-07 Scientific Design Co., Inc. Niobium or tantalum promoted silver catalyst
US5703001A (en) * 1996-10-25 1997-12-30 Scientific Design Company, Inc. Promoted silver catalyst
FR2758278B1 (fr) * 1997-01-15 1999-02-19 Inst Francais Du Petrole Catalyseur comprenant un sulfure mixte et utilisation en hydroraffinage et hydroconversion d'hydrocarbures
US5780656A (en) * 1997-04-14 1998-07-14 Scientific Design Company, Inc. Ethylene oxide catalyst and process
US5861519A (en) * 1997-05-23 1999-01-19 Arco Chemical Technology, L.P. Propylene oxide process using alkaline earth metal compound-supported silver catalysts containing tungsten and potassium promoters
US5770746A (en) * 1997-06-23 1998-06-23 Arco Chemical Technology, L.P. Epoxidation process using supported silver catalysts pretreated with organic chloride
US6323351B1 (en) 1997-06-30 2001-11-27 The Dow Chemical Company Process for the direct oxidation of olefins to olefin oxides
US6562986B2 (en) 1997-06-30 2003-05-13 Dow Global Technologies, Inc. Process for the direct oxidation of olefins to olefin oxides
AU8541298A (en) * 1997-07-30 1999-02-22 Arco Chemical Technology L.P. Propylene oxide process using calcium carbonate-supported silver catalysts containing potassium and magnesium promoters
US5958824A (en) * 1997-09-02 1999-09-28 Scientific Design Co., Inc. Ethylene oxide catalyst
US5854167A (en) * 1997-09-02 1998-12-29 Scientific Design Company, Inc. Ethylene oxide catalyst
US5905053A (en) * 1997-09-02 1999-05-18 Scientific Design Company, Inc. Ethylene oxide catalyst
TW408034B (en) * 1997-12-16 2000-10-11 Nippon Catalytic Chem Ind Silver catalyst for production of ethylene oxide, method for production thereof, and method for production of ethylene oxide
US5856534A (en) * 1997-12-18 1999-01-05 Arco Chemical Technology, L.P. Epoxidation process using supported silver catalysts treated with carbon dioxide
TW426545B (en) * 1997-12-25 2001-03-21 Nippon Catalytic Chem Ind Silver catalyst for production of ethylene oxide, method for production thereof, and method for production of ethylene oxide
ID26171A (id) 1998-04-15 2000-11-30 Dow Chemical Co Proses untuk oksidasi langsung olefin-olefin ke oksida-oksida olefin
US6562752B2 (en) 1998-06-25 2003-05-13 Institut Francais Du Petrole Metallic sulphide catalysts, processes for synthesising said catalysts and use thereof
FR2780303B1 (fr) 1998-06-25 2000-07-28 Inst Francais Du Petrole Procede de sulfuration de catalyseurs en milieu reducteur et utilisation du catalyseur sulfure dans des reactions de raffinage ou d'hydroconversion
DE69906136T2 (de) 1998-12-16 2004-01-08 Dow Global Technologies, Inc., Midland Verfahren zur direktoxidation von olefinen zu olefinoxiden
JP4646409B2 (ja) 1999-04-08 2011-03-09 ダウ グローバル テクノロジーズ インコーポレイティド 酸化された金触媒を使用してオレフィンをオレフィンオキシドにハイドロ酸化するための方法
US6821923B1 (en) * 1999-04-08 2004-11-23 Dow Global Technologies Inc. Method of preparing a catalyst containing gold and titanium
EP1344055A4 (en) * 2000-11-20 2009-03-25 Invitrogen Corp MATERIALS FOR IMPROVING THE STAINING OF BIOPOLYMERS IN MATRIZES
DE10064301A1 (de) * 2000-12-22 2002-07-04 Basf Ag Silberkatalysator für die Epoxidation von Alkenen
BR0307958B1 (pt) * 2002-02-25 2013-07-09 catalisador de prata suportado, processo para preparação do mesmo, processo para epoxidação de uma olefina e método para produção de um 1,2-diol, um 1,2-diol éter ou uma alcanolamina
US6750173B2 (en) 2002-04-08 2004-06-15 Scientific Design Company, Inc. Ethylene oxide catalyst
AU2003247652A1 (en) * 2002-06-28 2004-01-19 Shell Internationale Research Maatschappij B.V. A method for the start-up of an epoxidation process and a process for the epoxidation of an olefin
EP1517751B2 (en) * 2002-06-28 2016-06-01 Shell Internationale Research Maatschappij B.V. A method for improving the selectivity of a catalyst and a process for the epoxidation of an olefin
CN100457258C (zh) * 2002-09-30 2009-02-04 国际壳牌研究有限公司 制备银基环氧化催化剂的碳酸钙载体
DE10247784A1 (de) * 2002-10-14 2004-04-22 Bayer Ag Ein Katalysator für die Oxidation von Kohlenwasserstoffen zu Epoxiden
AU2003284183A1 (en) * 2002-10-28 2004-05-25 Shell Oil Company A process for preparing an olefin oxide, a method of using the olefin oxide and a catalyst composition
US7348444B2 (en) * 2003-04-07 2008-03-25 Shell Oil Company Process for the production of an olefin oxide
US6858560B2 (en) 2003-04-23 2005-02-22 Scientific Design Co., Inc. Ethylene oxide catalyst
US6846774B2 (en) * 2003-04-23 2005-01-25 Scientific Design Co., Inc. Ethylene oxide catalyst
US8148555B2 (en) * 2003-06-26 2012-04-03 Shell Oil Company Method for improving the selectivity of a catalyst and a process for the epoxidation of an olefin
US20050027133A1 (en) * 2003-07-29 2005-02-03 Saudi Basic Industries Corporation Method of making a catalyst for direct oxidation of an alkene to an alkene oxide
RU2007149318A (ru) * 2005-06-07 2009-07-20 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. (NL) Кктализатор, способ приготовления катализатора и способ получения оксида олефина, 1, 2-диола, эфира 1, 2-диола или алканоламина
CA2641225A1 (en) * 2006-02-03 2007-08-16 Shell Internationale Research Maatschappij B.V. A process for treating a catalyst, the catalyst, and use of the catalyst
US20090270640A1 (en) * 2006-04-21 2009-10-29 Basf Aktiengesellschaft Method for production of ethylene oxide in a microchannel reactor
US7977274B2 (en) 2006-09-29 2011-07-12 Sd Lizenzverwertungsgesellschaft Mbh & Co. Kg Catalyst with bimodal pore size distribution and the use thereof
US7932408B2 (en) * 2006-09-29 2011-04-26 Scientific Design Company, Inc. Catalyst with bimodal pore size distribution and the use thereof
AR066468A1 (es) 2007-05-09 2009-08-19 Shell Int Research Un catalizador de epoxidacion, un proceso para preparar el mismo, y un proceso para producir un oxido de olefina , un 1,2- diol, un 1,2 - diol eter, un 1,2- carbonato, o una alcanolamina
DE102008011767B4 (de) * 2008-02-28 2012-07-26 Basf Se Verfahren zur Herstellung von olefinisch ungesättigten Carbonylverbindungen durch oxidative Dehydrierung von Alkoholen
DE102008014910A1 (de) * 2008-03-19 2009-09-24 Basf Se Verwendung eines geträgerten edelmetallhaltigen Katalysators zur oxidativen Dehydrierung
BRPI0912391B1 (pt) * 2008-05-07 2018-04-17 Shell Internationale Research Maatschappij B.V. Processo para epoxidação de uma olefina
BRPI0912381A2 (pt) * 2008-05-07 2017-07-04 Shell Int Research processo para a partida de um processo de epoxidação, processo para a produção de óxido de etileno, 1,2-diol, 1, 2-diol éter, 1, 2-carbonato, ou uma alcanolamina
EP2350033B1 (de) * 2008-10-08 2012-09-19 Basf Se Verfahren zur herstellung eines alkylenoxids
BR112012015875A2 (pt) * 2009-12-18 2015-09-15 Sumitomo Chemical Co método para a produção de óxido de propileno
JP2013505994A (ja) * 2010-07-09 2013-02-21 住友化学株式会社 酸化オレフィンの製造方法
WO2012094122A1 (en) * 2011-01-05 2012-07-12 Sumitomo Chemical Company, Limited Process for producing olefin oxide
US8987482B2 (en) 2011-10-28 2015-03-24 Basf Se Process for producing a supported silver catalyst
US9079154B2 (en) 2012-05-04 2015-07-14 Basf Se Catalyst for the epoxidation of alkenes
EP3079810A4 (en) 2013-12-09 2017-05-31 Basf Se Catalyst for the epoxidation of alkenes
US8975424B1 (en) 2013-12-30 2015-03-10 Scientific Design Company, Inc. Zinc-promoted catalysts for epoxidation of ethylene
EP3496851A1 (en) 2016-08-08 2019-06-19 Basf Se Catalyst for the oxidation of ethylene to ethylene oxide
EP3548471B1 (en) 2016-12-02 2021-05-19 Shell Internationale Research Maatschappij B.V. Methods for conditioning an ethylene epoxidation catalyst and associated methods for the production of ethylene oxide

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2040782A (en) * 1936-05-12 Manufacture of olefine oxides
US2404438A (en) * 1943-09-07 1946-07-23 Shell Dev Process for the manufacture of olefin oxides
US2799687A (en) * 1952-12-23 1957-07-16 Merle L Gould Catalytic oxidation of olefins and contact beds and catalyst therefor
US2831870A (en) * 1956-05-07 1958-04-22 Allied Chem & Dye Corp Production of ethylene oxide
GB878435A (en) * 1959-02-17 1961-09-27 Furukawa Electric Co Ltd Method of manufacturing silver catalysts to be used for vapour phase direct oxidation of olefins
US3725307A (en) * 1967-01-30 1973-04-03 Halcon International Inc Process for preparing a silver-supported catalyst
GB1170663A (en) * 1967-03-22 1969-11-12 Shell Int Research Process for preparing Silver Catalysts
US3664970A (en) * 1969-04-17 1972-05-23 Halcon International Inc Ethylene oxide catalyst

Also Published As

Publication number Publication date
FR2253747A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-07-04
FR2253747B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1979-08-10
AU496988B2 (en) 1978-11-16
AR208300A1 (es) 1976-12-20
GB1491447A (en) 1977-11-09
DD114947A5 (de) 1975-09-05
CA1056798A (en) 1979-06-19
US4007135A (en) 1977-02-08
AU7578874A (en) 1976-05-27
NL7415798A (nl) 1975-06-09
CH611286A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1979-05-31

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