WO2001064338A1 - Verfahren zur katalytischen hydrierung an rheniumhaltigen aktivkohle-trägerkatalysatoren - Google Patents
Verfahren zur katalytischen hydrierung an rheniumhaltigen aktivkohle-trägerkatalysatoren Download PDFInfo
- Publication number
- WO2001064338A1 WO2001064338A1 PCT/EP2001/002337 EP0102337W WO0164338A1 WO 2001064338 A1 WO2001064338 A1 WO 2001064338A1 EP 0102337 W EP0102337 W EP 0102337W WO 0164338 A1 WO0164338 A1 WO 0164338A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- activated carbon
- acid
- weight ratio
- catalyst
- platinum
- Prior art date
Links
Classifications
-
- 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
- C07C29/17—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrogenation of carbon-to-carbon double or triple bonds
- C07C29/177—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrogenation of carbon-to-carbon double or triple bonds with simultaneous reduction of a carboxy group
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/18—Carbon
-
- 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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts 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
- B01J23/56—Platinum group metals
- B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/656—Manganese, technetium or rhenium
- B01J23/6567—Rhenium
-
- 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
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/8933—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/8986—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with manganese, technetium or rhenium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/18—Systems containing only non-condensed rings with a ring being at least seven-membered
- C07C2601/20—Systems containing only non-condensed rings with a ring being at least seven-membered the ring being twelve-membered
Definitions
- the invention relates to a process for the hydrogenation of compounds containing carbonyl groups on Re-containing, partially non-oxidatively pretreated activated carbon supported catalysts, for the production of alcohols while avoiding the formation of ethers, or for the production of ethers and lactones, the production of the desired product being controlled selectively can be.
- the industrial production of alcohols is often based on starting materials containing carbonyl groups, such as aldehydes, ketones, carboxylic acids, carboxylic anhydrides and esters, which are hydrogenated with hydrogen.
- the production of ethers and lactones is often based on carboxylic acids, esters or anhydrides thereof, lactones or mixtures thereof.
- EP-A-0 848 991 describes a catalyst containing palladium, silver, rhenium and iron which, for example, can hydrogenate maleic acid or its ester to give butanediol.
- a selectivity to butanediol of 89.5% is achieved.
- the hydrogenation success is diminished by the fact that the byproduct is ether tetrahydrofuran (THF) with 5.6%.
- THF ether tetrahydrofuran
- n-butanol is formed as a further by-product.
- 5,698,749 describes catalysts which contain an element from Group VIII and at least rhenium, tungsten or molybdenum on an oxidatively pretreated carbon support.
- Pd / Re / C or Pd / Re / Ag / C catalysts are described.
- hydrogenation of aqueous maleic acid in turn produces, in addition to butanediol, THF.
- Butane diol is obtained with up to 92.8% selectivity.
- THF is still 1.6%
- the other by-product n-butanol is 4.6%.
- US 5,478,952 relates to the hydrogenation of maleic acid on an Ru / Re activated carbon catalyst to form THF and gamma-butyrolactone as main products. - 3 -
- EP-A-0 276 012 relates to the hydrogenation of maleic acid to gamma-butyrolactone and butanediol over P ⁇ VRe / TiO 2 catalysts.
- the object is achieved according to the invention by a process for the catalytic flydration of carbonyl compounds on a catalyst which contains rhenium on activated carbon, the catalyst being rhenium (calculated as metal) in a weight ratio to activated carbon of 0.0001 to 0.5 platinum (calculated as metal) in a weight ratio to activated carbon of 0.0001 to 0.5 and optionally at least one further metal selected from Zn, Cu, Ag, Au, Mi, Fe, Ru, Mn, Cr, Mo, W and V used in a weight ratio to the activated carbon of 0 to 0.25, for the production of alcohols, the activated carbon has not been pretreated oxidatively, or for the preparation of ethers and lactones, starting from carboxylic acids, esters or anhydrides thereof, lactones or their mixtures and the Hydrogenation is carried out at a maximum hydrogen pressure of 25 bar and the activated carbon can be pretreated non-oxidatively.
- carbonyl compounds can be catalytically hydrogenated to the corresponding alcohols without ether formation at low temperatures (preferably below 140 ° C.) by using at least rhenium or rhenium / platinum on non-oxidatively treated carbon supports such as activated carbon for the hydrogenation. Without ether formation, this means that the ether formation should have a maximum of 0.5% of the hydrogenation products.
- the ether content is preferably below 0.2%, particularly preferably below 0.1%.
- a non-oxidative treatment of the carbon support material with mineral acids or bases can furthermore be regarded as advantageous compared to an oxidative treatment with ENT or peroxides, since an oxidative pretreatment of activated carbons with H 2 O or peroxides is an expensive pretreatment process, which increases the catalyst production costs considerably.
- oxidative pretreatment with ENT nitrous gases are generated which have to be removed in complex exhaust gas cleaning processes (DeNOX).
- DeNOX complex exhaust gas cleaning processes
- Another disadvantage of the oxidative pretreatment is the loss of material due to the oxidative pretreatment.
- the carbon-containing carrier materials partially dissolve in the oxidizing agents and moldings can even completely disintegrate at the appropriate temperature.
- the commercially available activated carbons are generally suitable as activated carbons. Preference is given to using those which contain little chlorine and sulfur and whose proportion of micropores is as small as possible in relation to the proportion of mesopore and macropores.
- the non-oxidative treatment of the activated carbons can be carried out by treatment with solvents such as water or alcohols.
- the carbon carrier can also be conditioned by non-oxidative treatment with mineral acids such as HC1, H 3 PO 4 , H 2 SO 4, HBr or HF.
- Organic acids such as formic acid or acetic acid can also be used for the pretreatment of the carrier material / 64338
- Coal carriers that have been pretreated with solutions of bases such as NH 4 OH, NaOH or KOH also have a positive effect on the catalytic performance.
- the active carbon can be treated with the non-oxidizing agent before or during the application of the platinum and rhenium component or other catalyst components.
- catalysts are used in which the activated carbon carrier is first pretreated non-oxidatively and then oxidatively. In a further particular embodiment, catalysts are used in which the activated carbon carrier is first pretreated oxidatively and then non-oxidatively.
- the activated carbon carrier is stirred in the pretreatment agent at elevated temperature (50 to 90 ° C.).
- Both concentrated and diluted pretreatment agents (acids, alkalis) can be used as pretreatment agents.
- Concentrated pretreatment agents are preferably used (conc. HC1, conc. NaOH, semi-conc. H 3 PO).
- the treatment time is usually between one and 48 hours, preferably between 5 and 30 hours.
- the carbon carrier is washed with water to purify interfering ions. Aftertreatment at elevated temperature in water (between one and 48 hours, preferably between 5 and 30 hours) can follow.
- the pH test (boil 5g of charcoal in dist. H 2 0 20 minutes, filter solution, let cool under nitrogen, measure at pH 20 ° C) reveals a more acidic surface than the starting material basic pretreatment agent ensures a more basic surface.
- the rhenium component used is usually (NH 4 ) ReO 4 , Re O 7 , ReO, ReCl 3 , ReCl 5 , Re (CO) 5 Cl, Re (CO) 5 Br or Re 2 (CO) ) 0 , without this list is meant exclusively.
- Re O 7 is preferably used.
- platinum is also applied to the catalyst.
- the platinum can e.g. Platinum powder, oxide, hydrated oxide, nitrate, platinum (II) - or - (IV) - chloride, platinum (IV) -hydrochloric acid, platinum (II) - or - (IV) -bromide, platinum (II) -iodide, ice or trans-platinum (II) diamine chloride, ice or trans platinum (IV) diamine chloride, platinum (II) diamine nitrite, platinum (II) ethylenediamine chloride, platinum (II) - Tetramine chloride or chloride hydrate, platinum (II) tetramine nitrate, platinum (II) ethylenediamine chloride, platinum (0) tetrakis (triphenylphosphine), ice or trans-platinum (II) bis (triethylphosphine) ) chloride, ice or trans platinum (I
- Platinum (IV) bis (triphenylphosphine) oxide platinum (II) (- 2,2'-6 ', 2 "-terpyridine) chloride dihydrate, cis-platinum-bis- (acetonitrile) dichloride, cis- Platinum bis (benzonitrile) dichloride, platinum (II) acetylacetonate, platinum (II) -lc, 5c-cyclooctadiene chloride or - bromide, platinum nitrosyl nitrate, preferably as platinum oxide or nitrate, particularly preferably as platinum nitrate, without this list being meant exclusively.
- Rhenium (calculated as metal) can be applied in a weight ratio to activated carbon of 0.0001 to 0.5, preferably 0.001 to 0.2, particularly preferably from 0.01 to 0.15. The same conditions apply to platinum.
- the weight ratio of rhenium to platinum (calculated as metals) is in a range from 0.01 to 100. Preferably 0.05 to 50, particularly preferably 0.1 to 10.
- the catalyst There may be other elements on the catalyst. Examples include Zn, Cu, Ag, Au, Ni, Fe, Ru, Mn, Cr, Mo W and V. These elements modify the catalyst essentially with regard to activity and selectivity (hydrogenolysis products) but are not essential.
- Their weight ratio to Re can be 0 to 100, preferably 0.5 to 30, particularly preferably 0.1 to 5.
- the active components Re and Pt can be applied by impregnation in one or more steps with an aqueous, alcoholic or other organic solvent solution of the respective dissolved salts, impregnation with a solution of dissolved oxidic or metallic colloid of the active components, equilibrium adsorption in one or more Steps of the salts dissolved in aqueous or alcoholic solution or equilibrium adsorption of dissolved metallic or oxidic colloid on the pretreated activated carbon.
- the active components can be applied to the activated carbon either simultaneously or in succession. There is a drying step between the individual impregnation and equilibrium adsorption steps to remove the solvent.
- the active components are preferably applied in one step by impregnation with an aqueous salt solution or an aqueous oxidic colloid.
- the impregnated catalyst is dried.
- the drying temperature is 30-350 ° C, preferably 40-280 ° C, particularly preferably 50-150 ° C.
- the catalysts are usually activated before they are used. This activation can be done by applying a reducing gas atmosphere to the catalyst. Activation with the aid of hydrogen is preferably used.
- the activation temperature is usually 100-500 ° C., preferably 130-400 ° C., particularly preferably 150-350 ° C.
- Alternative reduction methods are the reduction of the metallic components by bringing them into contact with a liquid reducing agent such as hydrazine, formaldehyde or sodium formate.
- the liquid reducing agents are usually brought into contact at temperatures between 10 and 100 ° C. Contacting at temperatures between 20 to 80 ° C. is particularly preferred. - 8th -
- the hydrogenation for the production of alcohols is usually carried out at 50-250 ° C., preferably at 60-220 ° C., particularly preferably at 70-190 ° C., very particularly preferably at 80-140 ° C. Hydrogenation is usually carried out at a reaction pressure between 3 and 330 bar, preferably 20 and 300 bar.
- the pressure range of the hydrogenation in the liquid phase in the fixed bed at more than 150 bar, preferably 150-300 bar, in the fixed bed in the gas phase 3 to 100 bar and in suspension 10-90 bar is preferred.
- Suitable starting materials for the hydrogenation for the production of alcohols are in general carbonyl compounds which can additionally contain double or triple C-C bonds.
- aldehydes are propionaldehyde, butyraldehyde, crotonaldehyde, ethylhexanal, nonanal and glucose.
- carboxylic acids are succinic acid, fumaric acid, maleic acid, glutaric acid, adipic acid, hydroxycaproic acid, octanedioic acid, dodecanedioic acid, 2-cyclododecylpropionic acid and saturated or unsaturated fatty acids.
- esters are esters of the aforementioned acids, e.g.
- Anhydrides such as succinic anhydride or maleic anhydride can also be used.
- Preferred starting materials are succinic acid, maleic acid, adipic acid, 2-cyclododecylpropionic acid, succinic anhydride, maleic anhydride and the esters of these acids and gamma-butyrolactone.
- ethers and lactones can be prepared by catalytically in particular C 4 -C 5 dicarboxylic acids, dicarboxylic esters and anhydrides, in particular to the corresponding cyclic ethers and lactones as further valuable components at low hydrogen pressures ( ⁇ 25 bar, preferably ⁇ 20 bar ) can be hydrogenated by using at least rhenium and platinum on carbon supports such as activated carbons for the hydrogenation. So far, only gamma-butyrolactone (GBL) has been obtained at similarly low pressures. Another considerable disadvantage has hitherto been incomplete acid conversion at such low pressures. These disadvantages are now eliminated.
- the hydrogenation is preferably carried out at 50 to 250 ° C, preferably at 60 to 240 ° C, particularly preferably at 70 to 235 ° C.
- the cyclic ethers and lactones obtained in the process according to the invention are used, for example, as solvents and intermediates. Treatment of the carbon support material can also be carried out to produce ethers and lactones, but is not absolutely necessary.
- Suitable starting materials for the hydrogenation for the production of ethers and lactones are generally suitable carbonyl compounds which additionally have double or double carbon atoms
- Esters of the abovementioned acids for example as methyl, ethyl, propyl or butyl esters, can also be mentioned, and lactones, for example ⁇ -butyrolactone, ⁇ -valerolactone or caprolactone, can also be used.
- Anhydrides such as succinic anhydride or maleic anhydride can also be used.
- Preferred educts are succinic acid, maleic acid,
- Adipic acid succinic anhydride, maleic anhydride and the esters thereof
- Acids and ⁇ -butyrolactone Acids and ⁇ -butyrolactone.
- the compounds to be hydrogenated can be hydrogenated in bulk or in solution.
- suitable solvents are the hydrogenation product itself, or substances which are inert under the reaction conditions, such as alcohols such as methanol, ethanol, propanol or butanol, are also ethers such as THF or Ethylene glycol ether suitable.
- a preferred solvent is water, especially in the hydrogenation of carboxylic acids.
- the hydrogenation can be carried out in the gas or liquid phase, in one or more stages. In the liquid phase, both the suspension and the fixed bed procedure are possible. In exothermic reactions, the heat can be dissipated by external coolants (e.g. tube reactor). Boiling cooling in the reactor is also possible, especially if hydrogenation is carried out without recycling the product. A cooler in the return flow is recommended for product return.
- external coolants e.g. tube reactor
- the alcohols obtained in the process according to the invention are e.g. as
- BG 09® activated carbon
- 30% maleic acid solution after a total of 78 h of test time at approximately 122 ° C. reaction temperature, approximately 88.92% butanediol and 10.77% n-butanol, 0.3% propanol and no THF were found in the discharge.
- Example 5 Example 5:
- 30% maleic acid solution after a total of 78 h of test time at a reaction temperature of approximately 131 ° C., approximately 91.4% butanediol and 8.26% n-butanol, 0.32% propanol and no THF were found in the discharge.
- Catalysts produced by non-oxidative pretreatment of the activated carbon were able to hydrogenate maleic acid to the target product 1,4-butanediol at a lower temperature than the known catalysts.
- the proportion of ether by-product could be greatly reduced.
- activated carbon (Epibon from Lurgi) were pretreated with phosphoric acid and dried at 120 ° C. 9.81 g of Pt (NO 3 ) 2 were impregnated as an aqueous solution onto 50 g of the coal pretreated in this way.
- the soaked activated carbon was 18 h dried at 110 ° C, then reduced in a nitrogen / hydrogen stream for 4 h at 300 ° C and ambient pressure and passivated at room temperature in a nitrogen / air stream. 5 g of Re O 7 were then impregnated onto the passivated catalyst and dried at 110 ° C. for 18 hours.
- the catalyst obtained in this way was activated in a nitrogen / hydrogen stream for 4 h at 300 ° C. and ambient pressure and passivated at room temperature in a nitrogen / air stream.
- the reduced catalyst contains 3% Pt and 3% Re. 25 ml of the activated / passivated catalyst were then introduced into a 25 ml reactor.
- the hydrogenation was carried out in trickle mode, without product return.
- the reaction pressure was 20 bar, about 180 NL hydrogen / h were introduced.
- an LHSV of 0.1 h "1 and at a reactor temperature of 235 ° C the hydrogenation output after a total of 3 test hours showed approximately 73.5% THF, 1.3% GBL, 0% BDO , 25.0% alcohols (n-butanol + n-propanol).
- the acid conversion was 95.3%.
- an LHSV of 0.2 h "1 under otherwise identical reaction conditions, a hydrogenation discharge with approx. 36.5% THF, 42.7% GBL, 0.90% BDO and 19.8% alcohols (n-butanol + n-propanol). The acid conversion was 95.1%.
- activated carbon (Epibon from Lurgi) were pretreated with phosphoric acid and dried at 120 ° C.
- 2.5 g of PdCl were impregnated as an aqueous solution onto 50 g of the coal pretreated in this way.
- the impregnated activated carbon was dried at 110 ° C. for 18 h, then reduced in a nitrogen / hydrogen stream for 4 h at 300 ° C. and ambient pressure and passivated at room temperature in a nitrogen / air stream.
- 5 g of Re 2 O 7 were then impregnated onto the passivated catalyst and dried at 100 ° C. for 18 hours.
- the catalyst obtained in this way was activated in a nitrogen / hydrogen stream for 4 h at 300 ° C. and ambient pressure and passivated at room temperature in a nitrogen / air stream.
- the reduced one Catalyst contains 3% Pd and 3% Re. 25 ml of the activated / passivated catalyst were then introduced into a 25 ml reactor.
- the hydrogenation was carried out in trickle mode, without product return.
- the reaction pressure was 20 bar, about 100 NL hydrogen / h were introduced.
- an LHSV of 0.1 h "1 and a reactor temperature of 235 ° C the hydrogenation output after a total of 3 test hours showed approximately 65.2% THF, 11.9% GBL, 0% BDO and 22.9% alcohols (n-butanol + n-propanol)
- the acid conversion was 98.5%.
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)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/220,566 US6906228B2 (en) | 2000-03-01 | 2001-03-01 | Method for catalytic hydrogenation on rhenium-containing active carbon carrier catalysts |
EP01909811A EP1261423A1 (de) | 2000-03-01 | 2001-03-01 | Verfahren zur katalytischen hydrierung an rheniumhaltigen aktivkohle-trägerkatalysatoren |
US11/104,408 US7172989B2 (en) | 2000-03-01 | 2005-04-13 | Catalytic hydrogenation over rhenium-containing catalysts supported on activated carbon |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000109817 DE10009817A1 (de) | 2000-03-01 | 2000-03-01 | Verfahren zur Herstellung von Alkoholen an rheniumhaltigen Aktivkohle-Trägerkatalysatoren |
DE10009817.7 | 2000-03-01 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10220566 A-371-Of-International | 2001-03-01 | ||
US11/104,408 Division US7172989B2 (en) | 2000-03-01 | 2005-04-13 | Catalytic hydrogenation over rhenium-containing catalysts supported on activated carbon |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001064338A1 true WO2001064338A1 (de) | 2001-09-07 |
Family
ID=7633006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/002337 WO2001064338A1 (de) | 2000-03-01 | 2001-03-01 | Verfahren zur katalytischen hydrierung an rheniumhaltigen aktivkohle-trägerkatalysatoren |
Country Status (6)
Country | Link |
---|---|
US (2) | US6906228B2 (de) |
EP (1) | EP1261423A1 (de) |
KR (1) | KR100798557B1 (de) |
DE (1) | DE10009817A1 (de) |
MY (1) | MY134006A (de) |
WO (1) | WO2001064338A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004058398A1 (en) * | 2002-12-23 | 2004-07-15 | E.I. Du Pont De Nemours And Company | Platinum-rhenium-tin catalyst for hydrogenation in aqueous solution |
Families Citing this family (138)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7771689B2 (en) * | 2002-11-08 | 2010-08-10 | University Of Louisville Research Foundation, Inc | Bulk synthesis of metal and metal based dielectric nanowires |
DE10252280A1 (de) * | 2002-11-11 | 2004-05-27 | Basf Ag | Verbesserter Katalysator und Verfahren zur Herstellung von Alkoholen durch Hydrierung an diesem Katalysator |
DE10252281A1 (de) * | 2002-11-11 | 2004-05-27 | Basf Ag | Verbesserter Katalysator und Verfahren zur Hydrierung von Carbonylverbindungen in flüssiger Phase unter Verwendung des Katalysators |
DE102004007498A1 (de) * | 2004-02-13 | 2005-09-01 | Basf Ag | Hydrierverfahren zur Herstellung optisch aktiver Alkohole oder Carbonsäuren |
GB0514075D0 (en) * | 2005-07-11 | 2005-08-17 | Cardiff University | Improvements in catalysts |
US7615671B2 (en) | 2007-11-30 | 2009-11-10 | Eastman Chemical Company | Hydrogenation process for the preparation of 1,2-diols |
US8309772B2 (en) | 2008-07-31 | 2012-11-13 | Celanese International Corporation | Tunable catalyst gas phase hydrogenation of carboxylic acids |
US7820852B2 (en) * | 2008-07-31 | 2010-10-26 | Celanese International Corporation | Direct and selective production of ethyl acetate from acetic acid utilizing a bimetal supported catalyst |
US8309773B2 (en) | 2010-02-02 | 2012-11-13 | Calanese International Corporation | Process for recovering ethanol |
US20100197486A1 (en) * | 2008-07-31 | 2010-08-05 | Celanese International Corporation | Catalysts for making ethyl acetate from acetic acid |
US7608744B1 (en) | 2008-07-31 | 2009-10-27 | Celanese International Corporation | Ethanol production from acetic acid utilizing a cobalt catalyst |
US8680317B2 (en) * | 2008-07-31 | 2014-03-25 | Celanese International Corporation | Processes for making ethyl acetate from acetic acid |
US8546622B2 (en) | 2008-07-31 | 2013-10-01 | Celanese International Corporation | Process for making ethanol from acetic acid using acidic catalysts |
US8338650B2 (en) | 2008-07-31 | 2012-12-25 | Celanese International Corporation | Palladium catalysts for making ethanol from acetic acid |
US8501652B2 (en) | 2008-07-31 | 2013-08-06 | Celanese International Corporation | Catalysts for making ethanol from acetic acid |
US7863489B2 (en) | 2008-07-31 | 2011-01-04 | Celanese International Corporation | Direct and selective production of ethanol from acetic acid utilizing a platinum/tin catalyst |
US8471075B2 (en) | 2008-07-31 | 2013-06-25 | Celanese International Corporation | Processes for making ethanol from acetic acid |
US8637714B2 (en) | 2008-07-31 | 2014-01-28 | Celanese International Corporation | Process for producing ethanol over catalysts containing platinum and palladium |
US8304586B2 (en) * | 2010-02-02 | 2012-11-06 | Celanese International Corporation | Process for purifying ethanol |
US8450535B2 (en) | 2009-07-20 | 2013-05-28 | Celanese International Corporation | Ethanol production from acetic acid utilizing a cobalt catalyst |
US8710277B2 (en) * | 2009-10-26 | 2014-04-29 | Celanese International Corporation | Process for making diethyl ether from acetic acid |
US8680321B2 (en) * | 2009-10-26 | 2014-03-25 | Celanese International Corporation | Processes for making ethanol from acetic acid using bimetallic catalysts |
US8211821B2 (en) | 2010-02-01 | 2012-07-03 | Celanese International Corporation | Processes for making tin-containing catalysts |
US8460405B2 (en) | 2010-02-02 | 2013-06-11 | Celanese International Corporation | Ethanol compositions |
US8668750B2 (en) | 2010-02-02 | 2014-03-11 | Celanese International Corporation | Denatured fuel ethanol compositions for blending with gasoline or diesel fuel for use as motor fuels |
US8747492B2 (en) | 2010-02-02 | 2014-06-10 | Celanese International Corporation | Ethanol/fuel blends for use as motor fuels |
US8728179B2 (en) | 2010-02-02 | 2014-05-20 | Celanese International Corporation | Ethanol compositions |
US8222466B2 (en) | 2010-02-02 | 2012-07-17 | Celanese International Corporation | Process for producing a water stream from ethanol production |
KR20120112852A (ko) | 2010-02-02 | 2012-10-11 | 셀라니즈 인터내셔날 코포레이션 | 결정성 지지체 개질제를 포함하는 에탄올 제조용 촉매의 제조 및 용도 |
US8552226B2 (en) | 2010-02-02 | 2013-10-08 | Celanese International Corporation | Process for heat integration for ethanol production and purification process |
US8858659B2 (en) | 2010-02-02 | 2014-10-14 | Celanese International Corporation | Processes for producing denatured ethanol |
US8680343B2 (en) | 2010-02-02 | 2014-03-25 | Celanese International Corporation | Process for purifying ethanol |
US8932372B2 (en) | 2010-02-02 | 2015-01-13 | Celanese International Corporation | Integrated process for producing alcohols from a mixed acid feed |
US8394984B2 (en) | 2010-02-02 | 2013-03-12 | Celanese International Corporation | Process for producing an ethyl acetate solvent and co-production of ethanol |
US8541633B2 (en) | 2010-02-02 | 2013-09-24 | Celanese International Corporation | Processes for producing anhydrous ethanol compositions |
US8552224B2 (en) | 2010-05-07 | 2013-10-08 | Celanese International Corporation | Processes for maximizing ethanol formation in the hydrogenation of acetic acid |
US8394985B2 (en) * | 2010-02-02 | 2013-03-12 | Celanese International Corporation | Process for producing an ester feed stream for esters production and co-production of ethanol |
US8344186B2 (en) | 2010-02-02 | 2013-01-01 | Celanese International Corporation | Processes for producing ethanol from acetaldehyde |
US8314272B2 (en) | 2010-02-02 | 2012-11-20 | Celanese International Corporation | Process for recovering ethanol with vapor separation |
US8575403B2 (en) | 2010-05-07 | 2013-11-05 | Celanese International Corporation | Hydrolysis of ethyl acetate in ethanol separation process |
US8318988B2 (en) | 2010-05-07 | 2012-11-27 | Celanese International Corporation | Process for purifying a crude ethanol product |
US8552225B2 (en) | 2010-02-02 | 2013-10-08 | Celanese International Corporation | Process for vaporizing acetic acid for hydrogenation processes to produce ethanol |
US8604255B2 (en) | 2010-05-07 | 2013-12-10 | Celanese International Corporation | Process for recovering ethanol with sidedraws to regulate C3+ alcohols concentrations |
US8575404B2 (en) | 2010-05-07 | 2013-11-05 | Celanese International Corporation | Process for recycling gas from acetic acid hydrogenation |
US8569551B2 (en) | 2010-05-07 | 2013-10-29 | Celanese International Corporation | Alcohol production process integrating acetic acid feed stream comprising water from carbonylation process |
US8704011B2 (en) | 2010-05-07 | 2014-04-22 | Celanese International Corporation | Separating ethanol and ethyl acetate under low pressure conditions |
US8680342B2 (en) | 2010-05-07 | 2014-03-25 | Celanese International Corporation | Process for recovering alcohol produced by hydrogenating an acetic acid feed stream comprising water |
US8754267B2 (en) | 2010-05-07 | 2014-06-17 | Celanese International Corporation | Process for separating acetaldehyde from ethanol-containing mixtures |
US8704010B2 (en) | 2010-05-07 | 2014-04-22 | Celanese International Corporation | Alcohol production process with impurity removal |
US8884080B2 (en) | 2010-07-09 | 2014-11-11 | Celanese International Corporation | Reduced energy alcohol separation process |
US9272970B2 (en) | 2010-07-09 | 2016-03-01 | Celanese International Corporation | Hydrogenolysis of ethyl acetate in alcohol separation processes |
US8710280B2 (en) | 2010-07-09 | 2014-04-29 | Celanese International Corporation | Weak acid recovery system for ethanol separation processes |
US8809597B2 (en) | 2010-07-09 | 2014-08-19 | Celanese International Corporation | Separation of vapor crude alcohol product |
US8846986B2 (en) | 2011-04-26 | 2014-09-30 | Celanese International Corporation | Water separation from crude alcohol product |
US9126125B2 (en) | 2010-07-09 | 2015-09-08 | Celanese International Corporation | Reduced energy alcohol separation process having water removal |
US8901358B2 (en) | 2010-07-09 | 2014-12-02 | Celanese International Corporation | Esterification of vapor crude product in the production of alcohols |
US8846988B2 (en) | 2010-07-09 | 2014-09-30 | Celanese International Corporation | Liquid esterification for the production of alcohols |
US9150474B2 (en) | 2010-07-09 | 2015-10-06 | Celanese International Corporation | Reduction of acid within column through esterification during the production of alcohols |
US8710279B2 (en) | 2010-07-09 | 2014-04-29 | Celanese International Corporation | Hydrogenolysis of ethyl acetate in alcohol separation processes |
US8664454B2 (en) | 2010-07-09 | 2014-03-04 | Celanese International Corporation | Process for production of ethanol using a mixed feed using copper containing catalyst |
AU2011274524A1 (en) | 2010-07-09 | 2012-11-15 | Celanese International Corporation | Finishing reactor for purifying ethanol |
US8536384B2 (en) | 2010-07-09 | 2013-09-17 | Celanese International Corporation | Recovering ethanol sidedraw by separating crude product from hydrogenation process |
US8350098B2 (en) | 2011-04-04 | 2013-01-08 | Celanese International Corporation | Ethanol production from acetic acid utilizing a molybdenum carbide catalyst |
US8686200B2 (en) | 2011-04-26 | 2014-04-01 | Celanese International Corporation | Process to recover alcohol from an acidic residue stream |
US8686199B2 (en) | 2011-04-26 | 2014-04-01 | Celanese International Corporation | Process for reducing the concentration of acetic acid in a crude alcohol product |
US8884081B2 (en) | 2011-04-26 | 2014-11-11 | Celanese International Corporation | Integrated process for producing acetic acid and alcohol |
US8927787B2 (en) | 2011-04-26 | 2015-01-06 | Celanese International Corporation | Process for controlling a reboiler during alcohol recovery and reduced ester formation |
US8754268B2 (en) | 2011-04-26 | 2014-06-17 | Celanese International Corporation | Process for removing water from alcohol mixtures |
US8592635B2 (en) | 2011-04-26 | 2013-11-26 | Celanese International Corporation | Integrated ethanol production by extracting halides from acetic acid |
US9073816B2 (en) | 2011-04-26 | 2015-07-07 | Celanese International Corporation | Reducing ethyl acetate concentration in recycle streams for ethanol production processes |
US8927783B2 (en) | 2011-04-26 | 2015-01-06 | Celanese International Corporation | Recovering ethanol with sidestreams to regulate C3+ alcohols concentrations |
US8927780B2 (en) | 2011-04-26 | 2015-01-06 | Celanese International Corporation | Process for removing aldehydes from ethanol reaction mixture |
US9024082B2 (en) | 2011-04-26 | 2015-05-05 | Celanese International Corporation | Using a dilute acid stream as an extractive agent |
US9000233B2 (en) | 2011-04-26 | 2015-04-07 | Celanese International Corporation | Process to recover alcohol with secondary reactors for hydrolysis of acetal |
US9024084B2 (en) | 2011-04-26 | 2015-05-05 | Celanese International Corporation | Reduced energy alcohol separation process having controlled pressure |
US8927788B2 (en) | 2011-04-26 | 2015-01-06 | Celanese International Corporation | Process to recover alcohol with reduced water from overhead of acid column |
US9024085B2 (en) | 2011-04-26 | 2015-05-05 | Celanese International Corporation | Process to reduce ethanol recycled to hydrogenation reactor |
WO2012149137A1 (en) | 2011-04-26 | 2012-11-01 | Celanese International Corporation | Process for the production of ethanol from an acetic acid feed and a recycled ethyl acetate feed |
US9000232B2 (en) | 2011-04-26 | 2015-04-07 | Celanese International Corporation | Extractive distillation of crude alcohol product |
US8461399B2 (en) | 2011-04-26 | 2013-06-11 | Celanese International Corporation | Separation process having an alcohol sidestream |
US8933278B2 (en) | 2011-04-26 | 2015-01-13 | Celanese International Corporation | Process for producing ethanol and reducing acetic acid concentration |
US8927784B2 (en) | 2011-04-26 | 2015-01-06 | Celanese International Corporation | Process to recover alcohol from an ethyl acetate residue stream |
CN103080053B (zh) | 2011-04-26 | 2015-08-12 | 国际人造丝公司 | 使用叠置床反应器生产乙醇的方法 |
US8907141B2 (en) | 2011-04-26 | 2014-12-09 | Celanese International Corporation | Process to recover alcohol with secondary reactors for esterification of acid |
US8748675B2 (en) | 2011-06-16 | 2014-06-10 | Celanese International Corporation | Extractive distillation of crude alcohol product |
US8704012B2 (en) | 2011-06-16 | 2014-04-22 | Celanese International Corporation | Distillation of crude alcohol product using entrainer |
US8884079B2 (en) | 2011-08-03 | 2014-11-11 | Celanese International Corporation | Reducing impurities in hydrogenation processes with multiple reaction zones |
US8877986B2 (en) | 2011-08-03 | 2014-11-04 | Celanese International Corporation | Process for recovering alcohol |
US8927782B2 (en) | 2011-08-03 | 2015-01-06 | Celanese International Corporation | Vapor separation in alcohol production |
US8877987B2 (en) | 2011-08-03 | 2014-11-04 | Celanese International Corportation | Process for producing anhydrous ethanol using extractive distillation column |
US8575405B2 (en) | 2011-08-03 | 2013-11-05 | Celanese International Corporation | Reducing acetals during ethanol separation process |
US8895786B2 (en) | 2011-08-03 | 2014-11-25 | Celanese International Corporation | Processes for increasing alcohol production |
US8440866B2 (en) | 2011-08-03 | 2013-05-14 | Celanese International Corporation | Process for separating ethanol having low acid |
US8748676B2 (en) | 2011-08-03 | 2014-06-10 | Celanese International Corporation | Process for purifying a crude ethanol product |
US8853466B2 (en) | 2011-08-19 | 2014-10-07 | Celanese International Corporation | Integrated process for producing ethanol from methanol |
US8829253B2 (en) | 2011-08-19 | 2014-09-09 | Celanese International Corporation | Integrated process for producing ethanol from methanol |
US8853467B2 (en) | 2011-08-19 | 2014-10-07 | Celanese International Corporation | Integrated process for producing ethanol |
US8658843B2 (en) | 2011-10-06 | 2014-02-25 | Celanese International Corporation | Hydrogenation catalysts prepared from polyoxometalate precursors and process for using same to produce ethanol while minimizing diethyl ether formation |
US8536382B2 (en) | 2011-10-06 | 2013-09-17 | Celanese International Corporation | Processes for hydrogenating alkanoic acids using catalyst comprising tungsten |
US8809598B2 (en) | 2011-11-09 | 2014-08-19 | Celanese International Corporation | Producing ethanol using two different streams from acetic acid carbonylation process |
US8704013B2 (en) | 2011-11-09 | 2014-04-22 | Celanese International Corporation | Integrated process for producing ethanol |
US8614359B2 (en) | 2011-11-09 | 2013-12-24 | Celanese International Corporation | Integrated acid and alcohol production process |
US8809599B2 (en) | 2011-11-09 | 2014-08-19 | Celanese International Corporation | Integrated process for producing ethanol and water balance control |
US8686201B2 (en) | 2011-11-09 | 2014-04-01 | Celanese International Corporation | Integrated acid and alcohol production process having flashing to recover acid production catalyst |
US8703868B2 (en) | 2011-11-28 | 2014-04-22 | Celanese International Corporation | Integrated process for producing polyvinyl alcohol or a copolymer thereof and ethanol |
US8927790B2 (en) | 2011-12-15 | 2015-01-06 | Celanese International Corporation | Multiple vapor feeds for hydrogenation process to produce alcohol |
US9233899B2 (en) | 2011-12-22 | 2016-01-12 | Celanese International Corporation | Hydrogenation catalysts having an amorphous support |
US8575406B2 (en) | 2011-12-22 | 2013-11-05 | Celanese International Corporation | Catalysts having promoter metals and process for producing ethanol |
US9000234B2 (en) | 2011-12-22 | 2015-04-07 | Celanese International Corporation | Calcination of modified support to prepare hydrogenation catalysts |
US9333496B2 (en) | 2012-02-29 | 2016-05-10 | Celanese International Corporation | Cobalt/tin catalyst for producing ethanol |
US9079172B2 (en) | 2012-03-13 | 2015-07-14 | Celanese International Corporation | Promoters for cobalt-tin catalysts for reducing alkanoic acids |
US8455702B1 (en) | 2011-12-29 | 2013-06-04 | Celanese International Corporation | Cobalt and tin catalysts for producing ethanol |
US8907142B2 (en) | 2011-12-29 | 2014-12-09 | Celanese International Corporation | Process for promoting catalyst activity for ethyl acetate conversion |
US8802902B2 (en) | 2011-12-30 | 2014-08-12 | Celanese International Corporation | Pressure driven distillation for ethanol production and recovery from hydrogenation process |
BR112014015584A8 (pt) | 2012-01-06 | 2017-07-04 | Celanese Int Corp | catalisadores de hidrogenação com suportes modificados com cobalto |
US9024086B2 (en) | 2012-01-06 | 2015-05-05 | Celanese International Corporation | Hydrogenation catalysts with acidic sites |
US8981164B2 (en) | 2012-01-06 | 2015-03-17 | Celanese International Corporation | Cobalt and tin hydrogenation catalysts |
US8802588B2 (en) | 2012-01-23 | 2014-08-12 | Celanese International Corporation | Bismuth catalyst composition and process for manufacturing ethanol mixture |
US9051235B2 (en) | 2012-02-07 | 2015-06-09 | Celanese International Corporation | Process for producing ethanol using a molar excess of hydrogen |
US9353034B2 (en) | 2012-02-07 | 2016-05-31 | Celanese International Corporation | Hydrogenation process with reduced residence time for vapor phase reactants |
US9050585B2 (en) | 2012-02-10 | 2015-06-09 | Celanese International Corporation | Chemisorption of ethyl acetate during hydrogenation of acetic acid to ethanol |
US8729311B2 (en) | 2012-02-10 | 2014-05-20 | Celanese International Corporaton | Catalysts for converting acetic acid to acetone |
US8729317B2 (en) | 2012-02-15 | 2014-05-20 | Celanese International Corporation | Ethanol manufacturing process over catalyst with cesium and support comprising tungsten or oxides thereof |
US9126194B2 (en) | 2012-02-29 | 2015-09-08 | Celanese International Corporation | Catalyst having support containing tin and process for manufacturing ethanol |
US8927786B2 (en) | 2012-03-13 | 2015-01-06 | Celanese International Corporation | Ethanol manufacturing process over catalyst having improved radial crush strength |
US8802903B2 (en) | 2012-03-13 | 2014-08-12 | Celanese International Corporation | Stacked bed reactor with diluents for producing ethanol |
US8536383B1 (en) | 2012-03-14 | 2013-09-17 | Celanese International Corporation | Rhodium/tin catalysts and processes for producing ethanol |
US9073042B2 (en) | 2012-03-14 | 2015-07-07 | Celanese International Corporation | Acetic acid hydrogenation over a group VIII metal calcined catalyst having a secondary promoter |
US8975452B2 (en) | 2012-03-28 | 2015-03-10 | Celanese International Corporation | Process for producing ethanol by hydrocarbon oxidation and hydrogenation or hydration |
US8772553B2 (en) | 2012-10-26 | 2014-07-08 | Celanese International Corporation | Hydrogenation reaction conditions for producing ethanol |
JP6716574B2 (ja) | 2015-01-09 | 2020-07-01 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | テトラヒドロフラン、1,4−ブタンジオール又はγ−ブチロラクトンの製造方法 |
KR20180132650A (ko) | 2016-03-31 | 2018-12-12 | 바스프 에스이 | 알콜을 형성하기 위해 카르복실산을 수소화시키는 방법 |
CN108786804B (zh) * | 2018-05-31 | 2021-01-26 | 王鹏飞 | 氢化催化剂、其制备方法及应用 |
JPWO2020008617A1 (ja) * | 2018-07-06 | 2021-06-10 | Toyo Tire株式会社 | 水素化用触媒及びジオールの製造方法 |
CN109692687A (zh) * | 2018-12-28 | 2019-04-30 | 浙江工业大学 | 一种铂镍/活性炭共负载型催化剂及其制备与应用 |
KR102287646B1 (ko) * | 2018-12-31 | 2021-08-06 | 한화솔루션 주식회사 | 탄소 기반의 귀금속-전이금속 복합촉매 및 이의 제조방법 |
CN114522682B (zh) * | 2020-11-23 | 2024-04-26 | 中国科学院大连化学物理研究所 | 一种炭载双金属单原子催化剂及其制备方法 |
CN113185673B (zh) * | 2021-05-20 | 2022-09-27 | 长春三友智造科技发展有限公司 | 一种碳基催化剂及其制备方法以及用于双环戊二烯聚合的催化剂体系 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5302765A (en) * | 1992-05-29 | 1994-04-12 | E. I. Du Pont De Nemours And Company | Catalytic process for producing CF3 CHClF |
US5473086A (en) * | 1995-01-17 | 1995-12-05 | The Standard Oil Co. | Process for the hydrogenation of maleic acid to 1,4-butanediol |
US5698749A (en) * | 1995-09-06 | 1997-12-16 | The Standard Oil Company | Catalysts for the hydrogenation of aqueous maleic acid to 1,4-butanediol |
EP0848991A1 (de) * | 1996-12-20 | 1998-06-24 | The Standard Oil Company | Verbesserte Katalysatoren für die Hydrierung von Maleinsäure zu 1,4-Butandiol |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2519817A1 (de) | 1975-05-03 | 1976-11-11 | Hoechst Ag | Verfahren zur herstellung von butandiol-(1.4) |
US4659686A (en) * | 1983-12-22 | 1987-04-21 | E. I. Du Pont De Nemours And Company | Method for treating carbon supports for hydrogenation catalysts |
US4782167A (en) | 1987-01-23 | 1988-11-01 | E. I. Du Pont De Nemours And Company | Process for preparing butyrolactones and butanediols |
US5473089A (en) * | 1994-04-14 | 1995-12-05 | Henkel Kommanditgesellschaft Auf Aktien | Process for the production of ammonium fatty acid hydroxyalkanesulfonates |
US5478952A (en) * | 1995-03-03 | 1995-12-26 | E. I. Du Pont De Nemours And Company | Ru,Re/carbon catalyst for hydrogenation in aqueous solution |
-
2000
- 2000-03-01 DE DE2000109817 patent/DE10009817A1/de not_active Withdrawn
-
2001
- 2001-03-01 EP EP01909811A patent/EP1261423A1/de not_active Ceased
- 2001-03-01 US US10/220,566 patent/US6906228B2/en not_active Expired - Fee Related
- 2001-03-01 KR KR1020027011480A patent/KR100798557B1/ko not_active IP Right Cessation
- 2001-03-01 MY MYPI20010937A patent/MY134006A/en unknown
- 2001-03-01 WO PCT/EP2001/002337 patent/WO2001064338A1/de not_active Application Discontinuation
-
2005
- 2005-04-13 US US11/104,408 patent/US7172989B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5302765A (en) * | 1992-05-29 | 1994-04-12 | E. I. Du Pont De Nemours And Company | Catalytic process for producing CF3 CHClF |
US5473086A (en) * | 1995-01-17 | 1995-12-05 | The Standard Oil Co. | Process for the hydrogenation of maleic acid to 1,4-butanediol |
US5698749A (en) * | 1995-09-06 | 1997-12-16 | The Standard Oil Company | Catalysts for the hydrogenation of aqueous maleic acid to 1,4-butanediol |
EP0881203A1 (de) * | 1995-09-06 | 1998-12-02 | The Standard Oil Company | Katalysator und Verfahren zur Hydrierung zu 1,4-Butandiol |
EP0848991A1 (de) * | 1996-12-20 | 1998-06-24 | The Standard Oil Company | Verbesserte Katalysatoren für die Hydrierung von Maleinsäure zu 1,4-Butandiol |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004058398A1 (en) * | 2002-12-23 | 2004-07-15 | E.I. Du Pont De Nemours And Company | Platinum-rhenium-tin catalyst for hydrogenation in aqueous solution |
Also Published As
Publication number | Publication date |
---|---|
DE10009817A1 (de) | 2001-09-06 |
US20030114719A1 (en) | 2003-06-19 |
US20050176972A1 (en) | 2005-08-11 |
KR100798557B1 (ko) | 2008-01-28 |
MY134006A (en) | 2007-11-30 |
EP1261423A1 (de) | 2002-12-04 |
KR20020075467A (ko) | 2002-10-04 |
US6906228B2 (en) | 2005-06-14 |
US7172989B2 (en) | 2007-02-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1261423A1 (de) | Verfahren zur katalytischen hydrierung an rheniumhaltigen aktivkohle-trägerkatalysatoren | |
EP0983219B1 (de) | Verfahren zur herstellung von aliphatischen alkoholen | |
EP0815097B1 (de) | Verfahren zur Herstellung von 1,4-Butandiol und Tetrahydrofuran aus Furan | |
EP2501667B1 (de) | Verfahren zur herstellung eines geträgerten hydrierkatalysators mit erhöhter hydrieraktivität | |
DE69706831T2 (de) | Katalysator und Verfahren zur Hydrierung zu 1,4-Butandiol | |
EP1272270B1 (de) | VERFAHREN ZUR HERSTELLUNG VON 1,4-Butandiol AN RHENIUMHALTIGEN AKTIVKOHLE-TRÄGERKATALYSATOREN | |
EP1562882B1 (de) | Verbesserter katalysator und verfahren zur herstellung von alkoholen durch hydrierung an diesem katalysator | |
EP1383601A2 (de) | Verfahren zur hydrierung von carbonylverbindungen | |
EP1572354B1 (de) | Rheniumhaltiger trägerkatalysator und verfahren zur hydrierung von carbonylverbindungen in flüssiger phase unter verwendung des katalysators | |
EP3436420B1 (de) | Verfahren zur hydrierung von carbonsäuren zu alkoholen | |
WO1996000203A1 (de) | Verfahren zur herstellung von 1,4-butandiol | |
DE10252282A1 (de) | Verbesserter Katalysator und Verfahren zur Hydrierung von Carbonylverbindungen in flüssiger Phase unter Verwendung des Katalysators | |
DE1939882B (de) | Verfahren zur Herstellung von Tetrahydrofuran |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): JP KR US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1020027011480 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2001909811 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1020027011480 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10220566 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 2001909811 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWR | Wipo information: refused in national office |
Ref document number: 2001909811 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2001909811 Country of ref document: EP |