[go: up one dir, main page]

DK1399255T3 - Katalytisk hydrogenering af saccharider ved hjælp af ruthenium-katalysatorer på en SiO2-bærer - Google Patents

Katalytisk hydrogenering af saccharider ved hjælp af ruthenium-katalysatorer på en SiO2-bærer

Info

Publication number
DK1399255T3
DK1399255T3 DK02748756T DK02748756T DK1399255T3 DK 1399255 T3 DK1399255 T3 DK 1399255T3 DK 02748756 T DK02748756 T DK 02748756T DK 02748756 T DK02748756 T DK 02748756T DK 1399255 T3 DK1399255 T3 DK 1399255T3
Authority
DK
Denmark
Prior art keywords
catalytic hydrogenation
production
ruthenium
saccharides
ruthenium catalysts
Prior art date
Application number
DK02748756T
Other languages
English (en)
Inventor
Dominic Vanoppen
Melanie Maas-Brunner
Ulrich Kammel
Jan-Dirk Arndt
Original Assignee
Basf Se
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7687863&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK1399255(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Basf Se filed Critical Basf Se
Application granted granted Critical
Publication of DK1399255T3 publication Critical patent/DK1399255T3/da

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/132Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group
    • 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
    • B01J23/40Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/46Ruthenium, rhodium, osmium or iridium
    • 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
    • B01J23/40Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/46Ruthenium, rhodium, osmium or iridium
    • B01J23/462Ruthenium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/30Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/391Physical properties of the active metal ingredient
    • B01J35/393Metal or metal oxide crystallite size
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/40Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
    • B01J35/45Nanoparticles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61Surface area
    • B01J35/612Surface area less than 10 m2/g
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61Surface area
    • B01J35/61310-100 m2/g
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61Surface area
    • B01J35/617500-1000 m2/g
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63Pore volume
    • B01J35/6350.5-1.0 ml/g
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/08Silica
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2235/00Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties
    • B01J2235/30Scanning electron microscopy; Transmission electron microscopy
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/80Catalysts, in general, characterised by their form or physical properties characterised by their amorphous structures
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02Impregnation, coating or precipitation
    • B01J37/0201Impregnation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/16Reducing
    • B01J37/18Reducing with gases containing free hydrogen

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)
  • Saccharide Compounds (AREA)
DK02748756T 2001-06-11 2002-06-10 Katalytisk hydrogenering af saccharider ved hjælp af ruthenium-katalysatorer på en SiO2-bærer DK1399255T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001128205 DE10128205A1 (de) 2001-06-11 2001-06-11 Ruthenium-Katalysatoren
PCT/EP2002/006346 WO2002100537A2 (de) 2001-06-11 2002-06-10 Ruthenium-katalysatoren auf einem träger auf si02-basis für die katalytische hydrierung von sacchariden

Publications (1)

Publication Number Publication Date
DK1399255T3 true DK1399255T3 (da) 2009-02-02

Family

ID=7687863

Family Applications (1)

Application Number Title Priority Date Filing Date
DK02748756T DK1399255T3 (da) 2001-06-11 2002-06-10 Katalytisk hydrogenering af saccharider ved hjælp af ruthenium-katalysatorer på en SiO2-bærer

Country Status (15)

Country Link
US (2) US7618917B2 (da)
EP (2) EP2030680B1 (da)
JP (1) JP4409937B2 (da)
KR (1) KR100893794B1 (da)
CN (1) CN100435942C (da)
AT (1) ATE411104T1 (da)
AU (1) AU2002319210A1 (da)
BR (1) BR0210333A (da)
DE (2) DE10128205A1 (da)
DK (1) DK1399255T3 (da)
ES (1) ES2312596T3 (da)
MX (1) MXPA03011157A (da)
PT (1) PT1399255E (da)
RU (1) RU2322293C2 (da)
WO (1) WO2002100537A2 (da)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10128205A1 (de) * 2001-06-11 2002-12-12 Basf Ag Ruthenium-Katalysatoren
BR0316829A (pt) * 2002-12-11 2005-10-18 Basf Ag Processo contìnuo para a preparação de álcoois de açúcar
WO2005021475A1 (en) * 2003-09-03 2005-03-10 Sk Corporation Method for preparing sugar alcohols by catalytic hydrogenation of sugars
JP4813830B2 (ja) * 2004-10-14 2011-11-09 三菱重工業株式会社 排ガス処理触媒、排ガス処理方法および排ガス処理装置
DE102005029200A1 (de) 2005-06-22 2006-12-28 Basf Ag Katalysator und Verfahren zur Hydrierung von hydrierbare Gruppen enthaltenden organischen Verbindungen
DE102005030728A1 (de) * 2005-07-01 2007-01-04 Lanxess Deutschland Gmbh Verfahren zur Ruthenium-katalysierten Oxidation von Alkoholen mit Hypochlorit
DE102005040286A1 (de) * 2005-08-25 2007-03-01 Basf Ag Mechanisch stabiler Katalysator auf Basis von alpha-Aluminiumoxid
US7947859B2 (en) * 2005-08-26 2011-05-24 Asahi Kasei Chemicals Corporation Process for production of cycloolefin
RU2427422C2 (ru) * 2006-03-01 2011-08-27 Нэшнл Юниверсити Корпорейшн Хоккайдо Юниверсити Катализатор гидролиза целлюлозы и/или восстановления продуктов гидролиза целлюлозы и способ получения из целлюлозы сахарных спиртов
KR101414317B1 (ko) 2006-07-31 2014-07-02 바스프 에스이 수소화에 적합한 루테늄 촉매의 재생 방법
US8053615B2 (en) * 2007-03-08 2011-11-08 Virent Energy Systems, Inc. Synthesis of liquid fuels and chemicals from oxygenated hydrocarbons
ES2379969T3 (es) 2007-07-06 2012-05-07 Basf Se Proceso para la producción de una solución de glucosa acuosa a partir de maíz
BRPI0815978A2 (pt) * 2007-08-29 2015-02-18 Basf Se Processo para preparar aminas, e, usos de um efluente de reação, e de uma monoamina
JP5759381B2 (ja) 2008-12-17 2015-08-05 ビーエーエスエフ ソシエタス・ヨーロピアBasf Se 置換型シクロヘキシルメタノール類を製造するための連続方法
US20110144398A1 (en) 2009-12-11 2011-06-16 Basf Se Process for regenerating a ruthenium-containing supported hydrogenation catalyst
JP5745538B2 (ja) 2009-12-15 2015-07-08 ビーエーエスエフ ソシエタス・ヨーロピアBasf Se 芳香族化合物水素化用触媒とその方法
KR101359446B1 (ko) * 2011-04-19 2014-02-11 한국화학연구원 당류의 촉매 수소화에 의해 당알코올류를 제조하기 위한 담지촉매 및 이의 제조방법
KR101332303B1 (ko) 2011-04-19 2013-11-22 한국화학연구원 당류의 촉매 수소화에 의한 당알코올류의 제조방법
WO2012141523A2 (ko) * 2011-04-14 2012-10-18 한국화학연구원 당류의 촉매 수소화에 의해 당알코올류를 제조하기 위한 담지촉매, 이의 제조방법 및 이를 이용한 당알코올류의 제조방법
US20120289747A1 (en) * 2011-05-11 2012-11-15 Carl-Bosch-Strasse 38 Catalysts for the hydrogenation of aromatic amines
DE102011083528A1 (de) 2011-09-27 2013-03-28 Wacker Chemie Ag Verfahren zur Herstellung von Zuckeralkoholen durch katalytische Hydrierung von Zuckern an einem Ru/SiO2-Katalysator
KR101375541B1 (ko) 2012-02-02 2014-03-26 희성촉매 주식회사 알루미나 지지체로의 촉매 활성성분 열적 고정 공정 개선
CN102921410A (zh) * 2012-11-20 2013-02-13 中国海洋石油总公司 一种苯加氢制环己烷贵金属Ru催化剂的制法
DK3416740T3 (da) 2016-02-19 2021-02-08 Intercontinental Great Brands Llc Fremgangsmåder til dannelse af multiple værdistrømme ud fra biomassekilder
WO2018008787A1 (ko) * 2016-07-04 2018-01-11 서울대학교산학협력단 알지네이트를 이용한 당알코올 형성 방법
EP3510012A1 (en) 2016-09-09 2019-07-17 ExxonMobil Chemical Patents Inc. Processes for the hydrogenation of phthalate esters
CN110035820A (zh) 2016-12-19 2019-07-19 豪夫迈·罗氏有限公司 基于含氮生物聚合物的催化剂、其制备方法及其在氢化方法、还原脱卤和氧化中的用途
KR102324239B1 (ko) 2017-11-06 2021-11-08 한화솔루션 주식회사 방향족 화합물의 수소화 반응용 촉매 및 이의 제조방법
KR102275691B1 (ko) 2017-11-21 2021-07-09 한화솔루션 주식회사 사이클로도데카트라이엔의 선택적 수소화 촉매 및 이의 제조방법
CN110560053A (zh) * 2019-09-30 2019-12-13 成都欣华源科技有限责任公司 一种负载型催化剂及其制备方法和一种醛加氢制备醇的方法
EP4052790A4 (en) 2019-10-31 2023-12-27 China Petroleum & Chemical Corporation SUPPORTED CATALYST, ITS PREPARATION METHOD AND ITS APPLICATION
CN110818752B (zh) * 2019-12-03 2021-05-14 山东福田药业有限公司 一种乳糖醇生产工艺
CN114570360B (zh) * 2022-03-18 2023-12-08 中国科学院上海高等研究院 一种Ru基催化剂及其制备方法、应用
WO2025006628A2 (en) * 2023-06-26 2025-01-02 Amogy Inc. Compositions and methods for treating porous materials

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3055840A (en) 1958-01-13 1962-09-25 Engelhard Ind Inc Ruthenium-containing catalysts and methods of making said catalysts and increasing their activity
US3963788A (en) 1974-08-20 1976-06-15 Kruse Walter M Polyhydric alcohol production using ruthenium zeolite catalyst
US4072628A (en) 1974-11-05 1978-02-07 Ici Americas Inc. Regeneration of supported ruthenium catalyst
US3963789A (en) 1974-12-12 1976-06-15 Kruse Walter M Polyhydric alcohol production using RU on clay supports
BE882279A (fr) 1980-03-18 1980-07-16 Raffinerie Tirlemontoise Sa Procede de reactivation d'un catalyseur, a base de metaux du groupe du platine, pour l'hydrogenation des sucres
US4487980A (en) 1982-01-19 1984-12-11 Uop Inc. Method for hydrogenating aqueous solutions of carbohydrates
US4577566A (en) * 1982-04-01 1986-03-25 Betz Laboratories, Inc. Method of conditioning fireside fouling deposits using large particle size amorphous silica
FR2526782A1 (fr) 1982-05-14 1983-11-18 Metaux Precieux Cie Procede de preparation de chlorure de ruthenium et catalyseur obtenu a partir de ce chlorure
US4380680A (en) 1982-05-21 1983-04-19 Uop Inc. Method for hydrogenating aqueous solutions of carbohydrates
US4541626A (en) * 1982-07-07 1985-09-17 Xerox Corporation Sheet registration apparatus and device
US4413152A (en) 1982-08-25 1983-11-01 Uop Inc. Hydrogenation in aqueous solutions
US4471144A (en) 1982-12-13 1984-09-11 Uop Inc. Theta-alumina as a hydrothermally stable support in hydrogenation
US4503274A (en) 1983-08-08 1985-03-05 Uop Inc. Ruthenium hydrogenation catalyst with increased activity
EP0329923B1 (en) * 1988-02-22 1993-04-21 Fina Research S.A. Single-step catalytic process for the direct conversion of polysaccharides to polyhydric alcohols
US5414171A (en) 1992-02-26 1995-05-09 Catalytica, Inc. Process and washed catalyst for partially hydrogenating aromatics to produce cycloolefins
US5334790A (en) * 1992-02-26 1994-08-02 Catalytica Process and catalyst for partially hydrogenating aromatics to produce cycloolefins
DE4422051A1 (de) * 1994-06-27 1996-01-04 Basf Ag Verfahren zur Herstellung von 1,4-Butandiol
DE19815639A1 (de) * 1998-04-07 1999-10-14 Basf Ag Verfahren zur Herstellung von Zuckeralkoholen
DE19844325A1 (de) 1998-09-28 2000-03-30 Degussa Verfahren zur Herstellung von Alkoholen durch katalytische Hydrierung von Aldehyden oder Ketonen
DE10128205A1 (de) * 2001-06-11 2002-12-12 Basf Ag Ruthenium-Katalysatoren

Also Published As

Publication number Publication date
ATE411104T1 (de) 2008-10-15
US7618917B2 (en) 2009-11-17
PT1399255E (pt) 2008-11-27
US20080210222A1 (en) 2008-09-04
JP4409937B2 (ja) 2010-02-03
EP2030680B1 (de) 2014-07-02
CN1524016A (zh) 2004-08-25
ES2312596T3 (es) 2009-03-01
JP2004534638A (ja) 2004-11-18
EP1399255B1 (de) 2008-10-15
KR100893794B1 (ko) 2009-04-20
WO2002100537A3 (de) 2003-07-10
EP1399255A2 (de) 2004-03-24
BR0210333A (pt) 2006-04-04
AU2002319210A1 (en) 2002-12-23
RU2004100530A (ru) 2005-06-20
US20040176619A1 (en) 2004-09-09
DE10128205A1 (de) 2002-12-12
DE50212904D1 (de) 2008-11-27
EP2030680A1 (de) 2009-03-04
RU2322293C2 (ru) 2008-04-20
MXPA03011157A (es) 2004-02-26
KR20040007679A (ko) 2004-01-24
WO2002100537A2 (de) 2002-12-19
CN100435942C (zh) 2008-11-26

Similar Documents

Publication Publication Date Title
DK1399255T3 (da) Katalytisk hydrogenering af saccharider ved hjælp af ruthenium-katalysatorer på en SiO2-bærer
DK1412083T3 (da) Fremgangsmåde til fremstilling af sorbitol ved hydrogenering af egnede monosaccharider på en Ru/Sio2-katalysator
CA2529730A1 (en) Process for the epoxidation of propene
NO20006606L (no) Fremgangsmåte for fremstilling av en vandig monoester peroksykarboksylsyreopplösning, opplösningen som kan oppnås ved denne fremgangsmåten og dens anvendelse som desinfeksjonsmiddel
BR0010232B1 (pt) catalisador e processo de preparaÇço de acetato de vinila na fase gasosa partindo de etileno, Ácido acÉtico e oxigÊnio ou de gases contendo oxigÊnio sobre um catalisador.
BR9910837B1 (pt) catalisador para produção de acetato de vinila por reação de etileno, oxigênio e ácido acético e método para preparar um catalisador.
ES2193586T3 (es) Produccion de un catalizador de silicato cristalino con estructura monoclinica.
NO303271B1 (no) FremgangsmÕte for fremstilling av en vinylacetatkatalysator
ES2055260T3 (es) Procedimiento para la fabricacion de alcoholes (de una sola fase).
EP1384506A9 (en) Titanium containing supports for gold catalysts
ES2158042T3 (es) Proceso integrado para produccion de epoxidos.
BR0210460A (pt) métodos de produção de pirrolidonas
AR023298A1 (es) Metodo para preparar un catalizador compuesto de una base porosa que contiene paladio y oro
Goa et al. Catalytic performance of [Ti, Al]-beta in the alkene epoxidation controlled by the postsynthetic ion exchange
WO2002100538A8 (de) Verfahren zur herstellung von cycloaliphatischen verbindungen, die seitenketten mit epoxidgruppen aufweisen, durch hydrierung an ru/si02 katalysatoren
MY134052A (en) Catalyst and method for producing polytetrahydrofurane
BR8800661A (pt) Processo de fabricacao de gas de sintese ou de hidrogenio,por conversao catalitica do metanol
BR9904569B1 (pt) processo de remoÇço de impurezas de soluÇÕes contendo derivados acÉticos, provenientes da fabricaÇço de acetato de celulose, utilizando tensoativos em uma nanofiltraÇço com membranas.
DK1200187T3 (da) Fremgangsmåde til fremstilling af katalysatorer ved syreaktivering
HUP0303823A3 (en) Process for producing optically active alcohol derivatives with the asymmetric complex catalyst
EP1162178A3 (en) Process for removing cyclic acetals from wastewater streams
WO2003040382A1 (en) Process for producing optically active chroman derivative and intermediate
WO2004085354A3 (en) Process for the hydrogenation of alkylaryl ketones
TH37070A3 (th) กระบวนการสำหรับการผลิตอีพอกไซด์
JPS56164126A (en) Preparation of acetaldehyde and acetic acid