WO2000003963A1 - Method for oxidising cyclohexane in gas phase by means of solid micro- and mesoporous catalysts - Google Patents
Method for oxidising cyclohexane in gas phase by means of solid micro- and mesoporous catalysts Download PDFInfo
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- WO2000003963A1 WO2000003963A1 PCT/EP1999/004891 EP9904891W WO0003963A1 WO 2000003963 A1 WO2000003963 A1 WO 2000003963A1 EP 9904891 W EP9904891 W EP 9904891W WO 0003963 A1 WO0003963 A1 WO 0003963A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/48—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by oxidation reactions with formation of hydroxy groups
- C07C29/50—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by oxidation reactions with formation of hydroxy groups with molecular oxygen only
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/02—Apparatus characterised by being constructed of material selected for its chemically-resistant properties
-
- 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
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00094—Jackets
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/14—The ring being saturated
Definitions
- the present invention relates to a single-stage catalytic process for the selective oxidation of cyclohexane with atmospheric oxygen for the production of cyclohexanol and cyclohexanone.
- the process comprises the use of amorphous microporous as well as mesoporous catalysts with different transition metal ions as the active center in a continuously operated reactor in the gas phase under elevated pressure.
- Micro- and mesoporous mixed oxide catalysts eg Si0 2 , Ti0 2 , Al 2 0 3 or Zr0 2
- a low content of Co, Cr or V ions (maximum 10%) or other transition metal ions have proven to be particularly suitable for this reaction .
- the reaction takes place at temperatures between 150 and 350 ° C and a pressure of at least 2 bar. The best results are achieved at pressures of 15 to 25 bar.
- a significant improvement in selectivity can be achieved if the reactor walls consist of catalytically inert material or if metallic or other reactor inner walls are clad with a catalytically inert material such as gold, Teflon or quartz, are covered with such material by appropriate internals, or are coated with passivating lacquer.
- the process offers the advantage of heterogeneous reaction control in the gas phase, which, unlike all technical processes used to date, allows the product mixture to be separated from the catalyst very easily. Another advantage of this reaction procedure is the simple recycling of the cyclohexane.
- the reaction is carried out in a 1 m long reaction tube which is lined with a quartz tube.
- the tube has a diameter of 0.5 cm and is brought to the appropriate reaction temperature using a heating jacket.
- the catalyst bed (100 mg) is introduced into this vertically attached tube.
- the catalyst is calcined in an air stream at 400 ° C before use.
- the product mixture is removed after the reactor in the relaxed state and analyzed (gas chromatography).
- Amorphous microporous and mesoporous mixed oxides with silicon dioxide as matrix material and Cr and V as active centers were used as exemplary catalysts (AMM: DE-A 195.450422.6, MCM-41: US 5108725).
- the cyclohexane is metered continuously into the reactor with the help of an HPLC pump with a constant delivery volume of 2 ml / h to the carrier gas stream (air, 500 ml / h).
- the resulting product compositions as a function of temperature and pressure are summarized in the following tables.
- Example 1 Example 1 :
Abstract
The invention relates to a one-step catalytic method for selective oxidation of cyclohexane with atmospheric oxygen for producing cyclohexanol and cyclohexanone. The inventive method comprises using amorphous microporous catalysts as well as mesoporous catalysts with different transition metal ions as active centre in a continuously operated reactor, in the gas phase under high pressure.
Description
Verfahren zur Oxidation von Cyclohexan in der Gasphase unter Verwendung von festen mikro- und mesoporösen Katalysatoren Process for the oxidation of cyclohexane in the gas phase using solid micro- and mesoporous catalysts
Die vorliegende Erfindung betrifft ein einstufiges katalytisches Verfahren zur selektiven Oxidation von Cyclohexan mit Luftsauerstoff zur Herstellung von Cyclohexanol und Cyclohexanon. Das Verfahren umfaßt die Verwendung von amorphen mikroporösen als auch die von mesoporösen Katalysatoren mit unterschiedlichen Übergangsmetallionen als aktivem Zentrum in einem kontinuierlich betriebenem Reaktor in der Gasphase unter erhöhtem Druck.The present invention relates to a single-stage catalytic process for the selective oxidation of cyclohexane with atmospheric oxygen for the production of cyclohexanol and cyclohexanone. The process comprises the use of amorphous microporous as well as mesoporous catalysts with different transition metal ions as the active center in a continuously operated reactor in the gas phase under elevated pressure.
Zur Herstellung von Cyclohexanol und Cyclohexanon gibt es eine Reihe von Verfahren, die von unterschiedlichen Rohstoffen ausgehen. Dabei handelt es sich um zweistufige Verfahren und/oder homogen katalysierte Reaktionen [US 3076810, (Kirk, Othmer, Encyclopedia of Chemical Technology, 3. Ed., Vol 7 (1981); Ullmann's Encyclopedia of Indusrial Chemistry, VCH, 5. Ed., A8; Weissermel, Arpe, Industrielle Organische Chemie, VCH, Weinheim 1994; US 3957876; Ger. Offen. 2154656; US 3404185; US 3598869; US 2851496; Ger. Offen. 2124124; Brit. 777087;SU 503846; SU 757513]. Nicht bekannt sind bisher heterogen katalysierte Gasphasenreaktionen bei Temperaturen über 200 °C zur Oxidation von Cyclohexan.There are a number of processes for the production of cyclohexanol and cyclohexanone that start from different raw materials. These are two-stage processes and / or homogeneously catalyzed reactions [US 3076810, (Kirk, Othmer, Encyclopedia of Chemical Technology, 3rd Ed., Vol 7 (1981); Ullmann's Encyclopedia of Industrial Chemistry, VCH, 5th Ed. , A8; Weissermel, Arpe, Industrielle Organische Chemie, VCH, Weinheim 1994; US 3957876; Ger. Offen. 2154656; US 3404185; US 3598869; US 2851496; Ger. Offen. 2124124; Brit. 777087; SU 503846; SU 757513] Heterogeneously catalyzed gas phase reactions at temperatures above 200 ° C. for the oxidation of cyclohexane are not yet known.
Wir haben gefunden, daß bei Verwendung von mikro- oder mesoporösen Katalysatoren Cyclohexan in einer einstufigen Gasphasenreaktion unter Druck mit Luft selektiv oxidiert werden kann. Als besonders geeignet für diese Reaktion erwiesen sich mikro- und mesoporöse Mischoxidkatalysatoren (z.B. Si02, Ti02, Al203 oder Zr02) mit einem geringen Gehalt von Co-, Cr oder V- lonen (maximal 10 %) oder anderen Übergangsmetallionen. Die Umsetzung erfolgt bei Temperaturen zwischen 150 und 350 °C und einem Druck von mindestens 2 bar. Beste Ergebnisse werden bei Drucken von 15 bis 25 bar erzielt. Eine deutliche Selektivitätsverbesserung kann erzielt werden, wenn die Reaktorwände aus katalytisch inertem Material bestehen, oder wenn metallische
oder andere Reaktorinnenwände mit einem katalytisch inerten Material wie Gold, Teflon oder Quarz verkleidet, durch entsprechende Einbauten mit einem solchen Material abgedeckt sind, oder mit passivierendem Lack überzogen sind. Das Verfahren bietet neben den erzielbaren Umsätzen und der guten Selektivitäten den Vorteil der heterogenen Reaktionsführung in der Gasphase, die es erlaubt, im Gegensatz zu allen bisher eingesetzten technischen Verfahren, das Produktgemisch vom Katalysator sehr einfach abzutrennen. Ein weiterer Vorteil dieser Reaktionsführung liegt in der einfachen Rückführung des Cyclohexans.We have found that when using micro- or mesoporous catalysts, cyclohexane can be selectively oxidized with air in a single-stage gas phase reaction under pressure. Micro- and mesoporous mixed oxide catalysts (eg Si0 2 , Ti0 2 , Al 2 0 3 or Zr0 2 ) with a low content of Co, Cr or V ions (maximum 10%) or other transition metal ions have proven to be particularly suitable for this reaction . The reaction takes place at temperatures between 150 and 350 ° C and a pressure of at least 2 bar. The best results are achieved at pressures of 15 to 25 bar. A significant improvement in selectivity can be achieved if the reactor walls consist of catalytically inert material or if metallic or other reactor inner walls are clad with a catalytically inert material such as gold, Teflon or quartz, are covered with such material by appropriate internals, or are coated with passivating lacquer. In addition to the achievable conversions and the good selectivities, the process offers the advantage of heterogeneous reaction control in the gas phase, which, unlike all technical processes used to date, allows the product mixture to be separated from the catalyst very easily. Another advantage of this reaction procedure is the simple recycling of the cyclohexane.
Beispiele:Examples:
Reaktor:Reactor:
Die Reaktion wird in einem 1 m langen Reaktionsrohr durchgeführt, das innen mit einem Quarzrohr verkleidet ist. Das Rohr hat einen Durchmesser von 0,5 cm und wird mit Hilfe eines Heizmantels auf die entsprechende Reaktionstemperatur gebracht. In diesem senkrecht angebrachten Rohr wird die Katalysatorschüttung eingebracht (100 mg). Der Katalysator wird vor dem Einsatz bei 400 °C im Luftstrom kalziniert. Die Produktmischung wird nach dem Reaktor im entspannten Zustand entnommen und analysiert (gaschromato- graphisch).The reaction is carried out in a 1 m long reaction tube which is lined with a quartz tube. The tube has a diameter of 0.5 cm and is brought to the appropriate reaction temperature using a heating jacket. The catalyst bed (100 mg) is introduced into this vertically attached tube. The catalyst is calcined in an air stream at 400 ° C before use. The product mixture is removed after the reactor in the relaxed state and analyzed (gas chromatography).
ReaktionsführungReaction management
Als beispielhafte Katalysatoren wurden amorphe mikroporöse und mesoporöse Mischoxide mit Siliciumdioxid als Matrixmaterial und Cr und V als aktive Zentren eingesetzt (AMM: DE-A 195.450422.6, MCM-41 : US 5108725). Das Cyclohexan wird kontinuierlich mit Hilfe einer HPLC-Pumpe flüssig mit einem konstanten Fördervolumen von 2 ml / h zum Trägergasstrom (Luft, 500 ml/h) in den Reaktor dosiert. Die resultierende Prouktzusammensetzungen in Abhängigkeit von der Temperatur und dem Druck sind in den folgenden Tabellen zusammengefaßt.
Beispiel 1 :Amorphous microporous and mesoporous mixed oxides with silicon dioxide as matrix material and Cr and V as active centers were used as exemplary catalysts (AMM: DE-A 195.450422.6, MCM-41: US 5108725). The cyclohexane is metered continuously into the reactor with the help of an HPLC pump with a constant delivery volume of 2 ml / h to the carrier gas stream (air, 500 ml / h). The resulting product compositions as a function of temperature and pressure are summarized in the following tables. Example 1 :
Katalysator: 5 % Cr in SiO2 Catalyst: 5% Cr in SiO 2
Temperatur Druck Umsatz Cyclohexanol CyclohexanonTemperature pressure conversion cyclohexanol cyclohexanone
200 °C 15 bar 0,12% 33,8% 27,0%200 ° C 15 bar 0.12% 33.8% 27.0%
250 °C 15 bar 0,42% 28,5% 28,5%250 ° C 15 bar 0.42% 28.5% 28.5%
300 °C 15 bar 1 ,16% 25,8% 36,2%300 ° C 15 bar 1.16% 25.8% 36.2%
350°C 15 bar 0,99% 12,1% 31 ,3%350 ° C 15 bar 0.99% 12.1% 31.3%
200 °C 25 bar 1 ,72% 37,3% 33,8%200 ° C 25 bar 1.72% 37.3% 33.8%
250 °C 25 bar 1 ,33% 33,9% 17,3%250 ° C 25 bar 1.33% 33.9% 17.3%
300 °C 25 bar 2,39% 31 ,4% 31 ,0%300 ° C 25 bar 2.39% 31.4% 31.0%
350°C 25 bar 4,24% 28,3% 30,7%350 ° C 25 bar 4.24% 28.3% 30.7%
Beipiels 2:Example 2:
Katalysator: 5 % Cr in MCM-41Catalyst: 5% Cr in MCM-41
Temperatur Druck Umsatz Cyclohexanol CyclohexanonTemperature pressure conversion cyclohexanol cyclohexanone
200 °C 15 bar 0,26% 8,2% 47,0%200 ° C 15 bar 0.26% 8.2% 47.0%
250 °C 15 bar 0,46% 37,3% 50,5%250 ° C 15 bar 0.46% 37.3% 50.5%
300 °C 15 bar 3,45% 22,6% 32,2%300 ° C 15 bar 3.45% 22.6% 32.2%
350°C 15 bar 3,37% 23,1% 31 ,5%350 ° C 15 bar 3.37% 23.1% 31.5%
200 °C 25 bar 0,88% 41 ,0% . 26,2%200 ° C 25 bar 0.88% 41.0%. 26.2%
250 °C 25 bar 0,58% 29,5% 24,3%250 ° C 25 bar 0.58% 29.5% 24.3%
300 °C 25 bar 3,29% 32,5% 28,5%300 ° C 25 bar 3.29% 32.5% 28.5%
350°C 25 bar 2,98% 32,9% 27,5%
Beispiel 3:350 ° C 25 bar 2.98% 32.9% 27.5% Example 3:
Katalysator: 5 % V in SiO2 Catalyst: 5% V in SiO 2
Temperatur Druck Umsatz Cyclohexanol CyclohexanonTemperature pressure conversion cyclohexanol cyclohexanone
200 °C 15 bar 0,78% 41 ,2% 20,6%200 ° C 15 bar 0.78% 41.2% 20.6%
250 °C 15 bar 1 ,86% 29,1 % 29,6%250 ° C 15 bar 1.86% 29.1% 29.6%
300 °C 15 bar 3,69% 28,2% 31 ,4%300 ° C 15 bar 3.69% 28.2% 31.4%
350°C 15 bar 3,96% 39,4% 32,5%350 ° C 15 bar 3.96% 39.4% 32.5%
200 °C 25 bar 0,87% 28,8% 18,4%200 ° C 25 bar 0.87% 28.8% 18.4%
250 °C 25 bar 1 ,89% 32,7% 25,3%250 ° C 25 bar 1.89% 32.7% 25.3%
300 °C 25 bar 4,23% 40,6% 34,5%300 ° C 25 bar 4.23% 40.6% 34.5%
350°C 25 bar 3,89% 31 ,4% 28,3%350 ° C 25 bar 3.89% 31.4% 28.3%
Beispiel 4:Example 4:
Katalysator: 5% V in MCM-41Catalyst: 5% V in MCM-41
Temperatur Druck Umsatz Cyclohexanol CyclohexanonTemperature pressure conversion cyclohexanol cyclohexanone
200 °C 15 bar 0,35% 31 ,6% 23,3%200 ° C 15 bar 0.35% 31.6% 23.3%
250 °C 15 bar 1 ,31% 15,2% 22,9%250 ° C 15 bar 1, 31% 15.2% 22.9%
300 °C 15 bar 1 ,92% 17,7% 19,3%300 ° C 15 bar 1, 92% 17.7% 19.3%
350°C 15 bar 3,00% 21 ,4% 28,4%350 ° C 15 bar 3.00% 21.4% 28.4%
200 °C 25 bar 1 ,52% 42,8% . . 23,7%200 ° C 25 bar 1.52% 42.8%. . 23.7%
250 °C 25 bar 2,27% 28,7% 31 ,3%250 ° C 25 bar 2.27% 28.7% 31.3%
300 °C 25 bar 2,03% 25,1 % 25,6%300 ° C 25 bar 2.03% 25.1% 25.6%
350°C 25 bar 1 ,64% 9,8% 16,5%
350 ° C 25 bar 1.64% 9.8% 16.5%
Claims
1. Verfahren zur selektiven katalytischen Oxidation von Cyclohexan, dadurch gekennzeichnet, daß bei Temperaturen über 200 °C in Gegenwart von mikro- oder mesoporösen Mischoxidkatalysatoren in einem Reaktionsgefäß mit katalytisch inerten Innenwänden Cyclohexan mit Sauerstoff in Berührung gebracht wird.1. A process for the selective catalytic oxidation of cyclohexane, characterized in that at temperatures above 200 ° C in the presence of micro- or mesoporous mixed oxide catalysts in a reaction vessel with catalytically inert inner walls cyclohexane is brought into contact with oxygen.
2. Verfahren nach Anspruch 1 , wobei der Sauerstoff in Form von Luft eingesetzt wird.2. The method according to claim 1, wherein the oxygen is used in the form of air.
3. Verfahren nach Anspruch 1 , wobei die Oxidation bei einem Druck über 5 bar durchgeführt wird.3. The method according to claim 1, wherein the oxidation is carried out at a pressure above 5 bar.
4. Verfahren nach Anspruch 1 , wobei die Oxidation bei einem Druck von mindestens 15 bar ausgeführt wird.4. The method of claim 1, wherein the oxidation is carried out at a pressure of at least 15 bar.
5. Verfahren nach Anspruch 1 , wobei die Innenwände des Reaktionsgefäßes mit Gold, Teflon, Glas, Kevlar oder Graphit ausgekleidet oder mit passivierendem Lack überzogen sind.5. The method according to claim 1, wherein the inner walls of the reaction vessel are lined with gold, Teflon, glass, Kevlar or graphite or are coated with passivating lacquer.
6. Verfahren nach Ansprüchen 1 - 5, wobei der Mischoxidkatalysator aus Si02, Ti02, AI203 oder Zr02 oder deren Mischungen, dotiert mit Übergangsmetali- Ionen, besteht.6. The method according to claims 1-5, wherein the mixed oxide catalyst from Si0 2 , Ti0 2 , Al 2 0 3 or Zr0 2 or mixtures thereof, doped with transition metal ions.
7. Verfahren nach Anspruch 6, wobei als Übergangsmetall-Ionen Co-, Cr- oder V-Ionen verwendet werden.
7. The method according to claim 6, wherein Co, Cr or V ions are used as transition metal ions.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE19832016A DE19832016A1 (en) | 1998-07-16 | 1998-07-16 | Selective oxidation of cyclohexane to cyclohexanol and cyclohexanone comprises reaction with oxygen on a micro- or meso-porous mixed oxide catalyst in a heated reactor with an inert lining |
DE19832016.7 | 1998-07-16 |
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WO2000003963A1 true WO2000003963A1 (en) | 2000-01-27 |
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PCT/EP1999/004891 WO2000003963A1 (en) | 1998-07-16 | 1999-07-10 | Method for oxidising cyclohexane in gas phase by means of solid micro- and mesoporous catalysts |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1317247C (en) * | 2004-12-09 | 2007-05-23 | 中国石化集团巴陵石油化工有限责任公司 | Method of obtaining high purity cyclohexanol from cyclohexane oxidation product |
CN100364663C (en) * | 2006-04-07 | 2008-01-30 | 浙江大学 | Supported nano Au catalyst and method for preparing the same |
EP1970364A2 (en) | 2007-03-16 | 2008-09-17 | Sumitomo Chemical Company, Limited | Method for Producing Cycloalkanol and/or Cycloalkanone |
JP2008260746A (en) * | 2007-03-16 | 2008-10-30 | Sumitomo Chemical Co Ltd | Method for producing cycloalkanol and/or cycloalkanone |
WO2009002765A1 (en) * | 2007-06-27 | 2008-12-31 | H R D Corporation | High shear process for cyclohexanol production |
EP2096100A1 (en) | 2008-02-29 | 2009-09-02 | Sumitomo Chemical Company, Limited | Method for Producing Cycloalkanol and/or Cycloalkanone |
US7692044B2 (en) | 2007-08-03 | 2010-04-06 | Sumitomo Chemical Company, Limited | Process for producing cycloalkanol and/or cycloalkanone |
CN102260136A (en) * | 2010-05-26 | 2011-11-30 | 北京石油化工学院 | Method for preparing mixture of cyclohexanone and cyclohexanol by oxidazing cyclohexane liquid phase |
CN101148396B (en) * | 2006-09-22 | 2013-04-24 | 住友化学株式会社 | Process for producing cycloalkanol and/or cycloalkanone |
Families Citing this family (1)
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ES2704479T3 (en) * | 2010-10-01 | 2019-03-18 | Ube Industries | Oxidation catalyst for hydrocarbon compound, and method and apparatus for producing hydrocarbon compound oxide using the same |
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GONGXUEN LU ET AL.: "Catalytic oxidation of cyclohexane into cyclohexanol and cyclohexanone over a TiO2/TS-1 system by dioxygen under UV irradiation", J.CHEM.SOC.CHEM.COMMUN., vol. 21, 1994, pages 2423 - 2424, XP002120975 * |
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Cited By (15)
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CN1317247C (en) * | 2004-12-09 | 2007-05-23 | 中国石化集团巴陵石油化工有限责任公司 | Method of obtaining high purity cyclohexanol from cyclohexane oxidation product |
CN100364663C (en) * | 2006-04-07 | 2008-01-30 | 浙江大学 | Supported nano Au catalyst and method for preparing the same |
CN101148396B (en) * | 2006-09-22 | 2013-04-24 | 住友化学株式会社 | Process for producing cycloalkanol and/or cycloalkanone |
US7709685B2 (en) | 2007-03-16 | 2010-05-04 | Sumitomo Chemical Company, Limited | Method for producing cycloalkanol and/or cycloalkanone |
JP2008260746A (en) * | 2007-03-16 | 2008-10-30 | Sumitomo Chemical Co Ltd | Method for producing cycloalkanol and/or cycloalkanone |
EP1970364A2 (en) | 2007-03-16 | 2008-09-17 | Sumitomo Chemical Company, Limited | Method for Producing Cycloalkanol and/or Cycloalkanone |
WO2009002765A1 (en) * | 2007-06-27 | 2008-12-31 | H R D Corporation | High shear process for cyclohexanol production |
US7592493B2 (en) | 2007-06-27 | 2009-09-22 | H R D Corporation | High shear process for cyclohexanol production |
CN101679166B (en) * | 2007-06-27 | 2012-12-05 | Hrd有限公司 | High shear process for cyclohexanol production |
EA021462B1 (en) * | 2007-06-27 | 2015-06-30 | ЭйчАДи КОПЭРЕЙШН | Process for cyclohexanol production |
US7692044B2 (en) | 2007-08-03 | 2010-04-06 | Sumitomo Chemical Company, Limited | Process for producing cycloalkanol and/or cycloalkanone |
EP2096100A1 (en) | 2008-02-29 | 2009-09-02 | Sumitomo Chemical Company, Limited | Method for Producing Cycloalkanol and/or Cycloalkanone |
JP2009227653A (en) * | 2008-02-29 | 2009-10-08 | Sumitomo Chemical Co Ltd | Method for producing cycloalkanol and/or cycloalkanone |
US7923583B2 (en) | 2008-02-29 | 2011-04-12 | Sumitomo Chemical Company, Limited | Method for producing cycloalkanol and/or cycloalkanone |
CN102260136A (en) * | 2010-05-26 | 2011-11-30 | 北京石油化工学院 | Method for preparing mixture of cyclohexanone and cyclohexanol by oxidazing cyclohexane liquid phase |
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