WO2004046073A1 - Verfahren zur herstellung von ethern - Google Patents
Verfahren zur herstellung von ethern Download PDFInfo
- Publication number
- WO2004046073A1 WO2004046073A1 PCT/EP2003/012562 EP0312562W WO2004046073A1 WO 2004046073 A1 WO2004046073 A1 WO 2004046073A1 EP 0312562 W EP0312562 W EP 0312562W WO 2004046073 A1 WO2004046073 A1 WO 2004046073A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hydrogenation
- catalyst
- ethers
- unsubstituted
- substituted
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 150000002170 ethers Chemical class 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title abstract description 6
- 239000003054 catalyst Substances 0.000 claims abstract description 55
- 150000001241 acetals Chemical class 0.000 claims abstract description 36
- 238000005984 hydrogenation reaction Methods 0.000 claims abstract description 22
- 239000001257 hydrogen Substances 0.000 claims abstract description 18
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 18
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims abstract description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000005751 Copper oxide Substances 0.000 claims abstract description 11
- 229910000431 copper oxide Inorganic materials 0.000 claims abstract description 11
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims abstract description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 7
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 6
- 125000005842 heteroatom Chemical group 0.000 claims abstract description 3
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 claims abstract description 3
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims description 12
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 12
- 239000007858 starting material Substances 0.000 claims description 5
- 150000001298 alcohols Chemical class 0.000 claims description 4
- 150000001299 aldehydes Chemical class 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 150000001733 carboxylic acid esters Chemical class 0.000 claims description 3
- 150000002576 ketones Chemical class 0.000 claims description 3
- 150000001735 carboxylic acids Chemical class 0.000 claims description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 1
- 125000003118 aryl group Chemical group 0.000 abstract description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 18
- 239000000203 mixture Substances 0.000 description 15
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 14
- 239000010949 copper Substances 0.000 description 11
- -1 cyclic acetals Chemical class 0.000 description 11
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- HEWZVZIVELJPQZ-UHFFFAOYSA-N 2,2-dimethoxypropane Chemical compound COC(C)(C)OC HEWZVZIVELJPQZ-UHFFFAOYSA-N 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 239000011541 reaction mixture Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 230000004913 activation Effects 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- CROLBRYGLOVQCD-UHFFFAOYSA-N 6-methoxyhexan-1-ol Chemical compound COCCCCCCO CROLBRYGLOVQCD-UHFFFAOYSA-N 0.000 description 4
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 4
- ZMCUZECDVIZKOG-UHFFFAOYSA-N methyl 6,6-dimethoxyhexanoate Chemical compound COC(OC)CCCCC(=O)OC ZMCUZECDVIZKOG-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- HEVMDQBCAHEHDY-UHFFFAOYSA-N (Dimethoxymethyl)benzene Chemical compound COC(OC)C1=CC=CC=C1 HEVMDQBCAHEHDY-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzenecarboxaldehyde Natural products O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- GQKZBCPTCWJTAS-UHFFFAOYSA-N methoxymethylbenzene Chemical compound COCC1=CC=CC=C1 GQKZBCPTCWJTAS-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- YJEPUTKMMMUZAR-UHFFFAOYSA-N 1,1,4,4-tetramethoxycyclohexane Chemical compound COC1(OC)CCC(OC)(OC)CC1 YJEPUTKMMMUZAR-UHFFFAOYSA-N 0.000 description 2
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006315 carbonylation Effects 0.000 description 2
- 238000005810 carbonylation reaction Methods 0.000 description 2
- 238000009903 catalytic hydrogenation reaction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- BGTOWKSIORTVQH-UHFFFAOYSA-N cyclopentanone Chemical compound O=C1CCCC1 BGTOWKSIORTVQH-UHFFFAOYSA-N 0.000 description 2
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 description 2
- 229950009157 oxydibutanol Drugs 0.000 description 2
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- WUCQRXWCJPCWTQ-NSCUHMNNSA-N (e)-pent-3-enal Chemical compound C\C=C\CC=O WUCQRXWCJPCWTQ-NSCUHMNNSA-N 0.000 description 1
- 0 **C(*)(N=*)O* Chemical compound **C(*)(N=*)O* 0.000 description 1
- 150000000093 1,3-dioxanes Chemical class 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- SVHAWXAAVLMPLW-UHFFFAOYSA-N 1,4-dimethoxycyclohexane Chemical compound COC1CCC(OC)CC1 SVHAWXAAVLMPLW-UHFFFAOYSA-N 0.000 description 1
- VZXZEPUYHYKFJX-UHFFFAOYSA-N 1-(dimethoxymethyl)-4-(2-methoxypropan-2-yl)benzene Chemical compound COC(OC)C1=CC=C(C(C)(C)OC)C=C1 VZXZEPUYHYKFJX-UHFFFAOYSA-N 0.000 description 1
- KQQYUIIJYLTOMN-UHFFFAOYSA-N 1-(methoxymethyl)-4-propan-2-ylcyclohexane Chemical compound COCC1CCC(C(C)C)CC1 KQQYUIIJYLTOMN-UHFFFAOYSA-N 0.000 description 1
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- RMGHERXMTMUMMV-UHFFFAOYSA-N 2-methoxypropane Chemical compound COC(C)C RMGHERXMTMUMMV-UHFFFAOYSA-N 0.000 description 1
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 1
- DYGKLHQONXPPKW-UHFFFAOYSA-N 6,6-dimethoxyhexanoic acid Chemical compound COC(OC)CCCCC(O)=O DYGKLHQONXPPKW-UHFFFAOYSA-N 0.000 description 1
- PNPPVRALIYXJBW-UHFFFAOYSA-N 6-oxohexanoic acid Chemical compound OC(=O)CCCCC=O PNPPVRALIYXJBW-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical class CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 125000004036 acetal group Chemical group 0.000 description 1
- 238000006359 acetalization reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001278 adipic acid derivatives Chemical class 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 150000003935 benzaldehydes Chemical class 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- DCZFGQYXRKMVFG-UHFFFAOYSA-N cyclohexane-1,4-dione Chemical compound O=C1CCC(=O)CC1 DCZFGQYXRKMVFG-UHFFFAOYSA-N 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 150000001983 dialkylethers Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 235000019256 formaldehyde Nutrition 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000008241 heterogeneous mixture Substances 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000007037 hydroformylation reaction Methods 0.000 description 1
- 238000007327 hydrogenolysis reaction Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 125000000468 ketone group Chemical group 0.000 description 1
- JOOXCMJARBKPKM-UHFFFAOYSA-N laevulinic acid Natural products CC(=O)CCC(O)=O JOOXCMJARBKPKM-UHFFFAOYSA-N 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- QJZUKDFHGGYHMC-UHFFFAOYSA-N pyridine-3-carbaldehyde Chemical compound O=CC1=CC=CN=C1 QJZUKDFHGGYHMC-UHFFFAOYSA-N 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- VDRDGQXTSLSKKY-UHFFFAOYSA-K ruthenium(3+);trihydroxide Chemical compound [OH-].[OH-].[OH-].[Ru+3] VDRDGQXTSLSKKY-UHFFFAOYSA-K 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- WUCQRXWCJPCWTQ-UHFFFAOYSA-N trans-3-pentenal Natural products CC=CCC=O WUCQRXWCJPCWTQ-UHFFFAOYSA-N 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/18—Preparation of ethers by reactions not forming ether-oxygen bonds
- C07C41/28—Preparation of ethers by reactions not forming ether-oxygen bonds from acetals, e.g. by dealcoholysis
-
- 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
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
-
- B01J35/30—
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/04—Mixing
-
- 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 invention relates to a process for the preparation of ethers by hydrogenation of acetals in the presence of copper oxide, aluminum oxide and optionally catalysts containing manganese oxide.
- the catalytic hydrogenation of acetals in the presence of precious metal catalysts can be used for the synthesis of ethers.
- EP-A 810 194 discloses the preparation of 3-0xyalkylpropan-1-ols by catalytic hydrogenation of 1,3-dioxanes, which are cyclic acetals, on supported catalysts preferably containing copper.
- example 3 it is known to split the form of ethylene glycol monomethyl ether into hydrogen glycol dimethyl ether by hydrogenolysis with hydrogen in the presence of a catalyst consisting of copper on aluminum oxide / silicon dioxide at 180 ° C./110 bar.
- the selectivity is 95%, but the conversion is only 43%.
- Example 1 c when hydrogenating 120 g of a mixture of acetals of tetrahydrofuran at 175 ° C./200 bar in the presence of a catalyst containing 55.6% copper on aluminum oxide, 66.5 g THF, 46.5 g of 1,4-butanediol, but only 2.5 g of 4,4-dihydroxydibutyl ether were obtained.
- the object was therefore to provide inexpensive, active catalysts with a long service life, which make it possible to hydrogenate acetals of very different structures to ethers in high yields and selectivities. Furthermore, the process should not require any chromium-containing catalysts. What is desired is a process which can not only be applied to a variety of acetals, but is also suitable for converting acetals contained in reaction mixtures as by-products which are difficult to remove into ethers which are no longer disruptive or, if appropriate, easily removable.
- R 1, R 3 and R 3 have the meaning given above by hydrogenation in the presence of hydrogen over copper oxide, aluminum oxide and optionally additionally catalysts containing manganese oxide
- the radicals R and R can have the meaning given above and can each be substituted or unsubstituted.
- substituents in addition Ci to C 4 alkoxy C come to C 4 -acyl, C, to C 4 acyl oxy, carboxy 'and formyl radicals.
- the acetals of the general formula (II) can therefore contain hydrogenatable substituents which are also hydrogenated when the process according to the invention is carried out.
- substituents in addition Ci to C 4 alkoxy C come to C 4 -acyl, C, to C 4 acyl oxy, carboxy 'and formyl radicals.
- the acetals of the general formula (II) can therefore contain hydrogenatable substituents which are also hydrogenated when the process according to the invention is carried out.
- carboxylic acid, carboxylic ester, aldehyde and keto groups are hydrogenated to corresponding alcohols and alkenes to alkanes.
- acetals of the formula II are substituted and unsubstituted dialkyl, dicycloalkylacetals of benzaldehyde, mono- and diacetals of cyclohexanone, 1,2-, 1,3- and 1,4-cyclohexanedione, the C 2 - to C 2 o -Alkanals, the 3-formylpropionic acid alkyl ester, the 5-formylvaleric acid ester, the laevulinic acid ester, cyclopentanone, nicotinaldehyde, 3-pentenal, furfural, acrolein.
- the acetal group is located directly on an aromatic (for example benzaldehyde dimethyl acetal)
- the resulting ether for example benzyl methyl ether
- the methyl aromatic for example toluene
- the hydrogenation can be carried out with or without the addition of solvents.
- solvents are Hydrocarbons such as cyclohexane, ethers such as tetrahydrofuran, dioxane, methyl tert. Butyl ether, alcohols such as methanol, ethanol, butanols are suitable. It is particularly preferred to use the alcohol which is released during the hydrogenation of the acetal.
- the starting compound of the formula II is used as a 0.01 to 50% by weight solution, in particular as a 5 to 20% by weight solution.
- the acetal (II) can also be part of a reaction mixture. Particularly in cases where the acetal (II) is a secondary component which is difficult to separate from the desired product in the reaction mixture, this reaction mixture can be used in the process according to the invention as a starting material to be hydrogenated which contains acetal.
- acetals of the general formula (II) or mixtures of different acetals (acetal mixture) or acetal-containing mixtures can therefore be used as the starting material for the process according to the invention other compounds, such as aldehydes, ketones, carboxylic acid esters, ethers, alcohols and / or carboxylic acids, in addition to acetals, can be used.
- the molar ratio of hydrogen to acetal, acetal mixture or mixture containing acetal is 0.1: 1 to 100: 1, preferably 1: 1 to 50: 1.
- the catalysts used are those which contain copper oxide and aluminum oxide in their unreduced form and are chromium-free.
- the unreduced copper oxide / aluminum oxide catalysts contain 10 to 80% by weight of copper oxide and 90 to 20% by weight of aluminum oxide, preferably 20 to 70% by weight of copper oxide and 80 to 30% by weight of aluminum oxide, particularly preferably 30 to 60 % By weight copper oxide and 70 to 40% by weight aluminum oxide.
- the catalysts used according to the invention can contain one or more further metals or a compound thereof, preferably an oxide, from groups 1 to 14 (IA to VIIIA and IB to IVB of the old IUPAC nouns) of the Periodic Table of the Elements. If such a further oxide is used, Ti0, Zr0, So0, ZnO and / or MgO is preferably used. The amounts used are 0.1 to 40% by weight, in particular 1 to 20% by weight, based on the unreduced catalyst.
- the catalysts used can also contain an auxiliary in an amount of 0 to 10% by weight.
- auxiliary are understood to be organic and inorganic substances which contribute to improved processing during catalyst production and / or to an increase in the mechanical strength of the shaped catalyst bodies. Such aids are known to the person skilled in the art; Examples include graphite, stearic acid, silica gel and copper powder.
- Chromium-free catalysts which contain copper oxide, aluminum oxide and manganese oxides in an unreduced form are also suitable. They are described in EP 552 463 B1, to which express reference is made here, and have the following features:
- x denotes the number of oxygen ions required to maintain electroneutrality per formula unit
- the BET surface area is between 10 and 150 m 2 / g.
- the catalyst according to the invention contains a smaller proportion of aluminum oxide.
- the catalyst according to this embodiment is characterized by the following features:
- x denotes the number of oxygen ions required to maintain electroneutrality per formula unit
- the metal mass which is dissolved by stirring 10 g of the oxidic catalyst in 100 ml of 10% strength by weight acetic acid at 200 ° C. for 2 minutes, is a maximum of 400 mg:
- the BET surface area is between 5 and 150 m 2 / g.
- the oxidic form is obtainable by thermal treatment of an intermediate stage in the temperature range from 450 to 900 ° C., preferably in the temperature range from 500 to 800 ° C.
- the catalysts can be prepared by methods known to those skilled in the art.
- catalysts according to the invention can also be produced, for example, by applying the active component to a support, for example by impregnation or vapor deposition.
- catalysts according to the invention can be obtained by shaping a heterogeneous mixture of active component or precursor compound thereof with a carrier component or precursor compound thereof.
- the catalysts are used in a reduced, activated form.
- the catalyst is activated with reducing gases, preferably with hydrogen, particularly preferably in a mixture with inert gases such as nitrogen or argon, either before or after installation in the reactor in which the process according to the invention is carried out. If the catalyst has been installed in the reactor in oxidic form, the activation can be carried out both before starting up the plant with the hydrogenation according to the invention and during start-up, that is to say in situ.
- the separate activation before starting up the system is generally carried out using reducing gases, preferably hydrogen or hydrogen / inert gas mixtures, at elevated temperatures, preferably between 100 and 300.degree.
- reducing gases preferably hydrogen or hydrogen / inert gas mixtures
- elevated temperatures preferably between 100 and 300.degree.
- the catalysts are used as shaped articles. Examples include strands, rib strands, other extrudates, tablets, rings, balls and grit. If the activity and / or selectivity of the catalyst should nevertheless decrease in the course of its operating time, the catalyst used according to the invention can be regenerated by measures known to the person skilled in the art. This preferably includes reductive treatment of the catalyst in a hydrogen stream at elevated temperature. If necessary, the reductive treatment can be preceded by an oxidative treatment. In this case, a molecular mixture containing oxygen, for example air, flows through the catalyst bed at elevated temperature. It is also possible to wash the catalyst with a suitable solvent, for example ethanol, THF or GBL, and then to dry it in a gas stream.
- a suitable solvent for example ethanol, THF or GBL
- hydrogenation is carried out at temperatures of 50 to 300 ° C., in particular 150 to 240 ° C. and pressures of 0.1 to 30 MPa, in particular 15 to 250 MPa.
- the hydrogenation is carried out in the gas or liquid phase.
- the process is carried out batchwise, but preferably continuously, in the bottoms or trickle mode, with the catalyst being arranged in a fixed manner. It is also possible to use suspended catalysts.
- Catalyst loads of 0.01 to 1, preferably 0.05 to 0.5 kg acetal II / liter catalyst and hour have proven effective.
- the reactors used are e.g. Tube reactors and tube bundle reactors.
- unreacted hydrogen is generally separated off after the hydrogenation and returned to the hydrogenation reactor (cycle gas procedure).
- the hydrogenation products are worked up in a manner known per se. It is carried out, if appropriate for example after the solvent has been separated off by distillation by distillation and / or crystallization.
- the process according to the invention makes it possible to prepare ethers with two identical or two different organic radicals by acetalization of aldehydes or ketones and subsequent hydrogenation. Furthermore, with the aid of the process, it is possible to convert disruptive acetals into ethers which are no longer disruptive or easily separable. In comparison to precious metals, inexpensive copper catalysts can be used. Examples
- a catalyst containing 55% CuO, 35% A10 3 and 10 m% Mn0 3 is used as the catalyst. Before filling the reactor, the catalyst was activated with hydrogen at 200 ° C./300 bar.
- a 300 ml stirred autoclave was charged with 20 g of the reduced catalyst, which was arranged in a wire basket, and 150 g of a 5% by weight solution of 2,2-dimethoxypropane in methanol.
- An H pressure of 50 bar was first applied.
- the reaction mixture was heated to 210.degree. C. and the mixture was then injected to an H 2 pressure of 240 bar.
- the mixture was stirred for over 12 hours. After 12 hours the autoclave was cooled, let down and the reaction mixture was analyzed by gas chromatography. The yield of 2-methoxypropane was 98% (based on the 2,2-dimethoxypropane used).
- the starting compound was no longer recognizable in the GC chromatogram.
- Example 1 was repeated, using a 5% strength by weight solution of 1, 1,4, 4-tetramethoxycyclohexane in methanol instead of 2,2-dimethoxy propane.
- the yield of 1,4-dimethoxycyclohexane was 97% (based on the 1,4,4-tetramethoxycyclohexane used).
- Example 1 was repeated, using a 5% strength by weight solution of methyl 6,6-dimethoxycaproate in methanol instead of 2,2-dimethoxy propane.
- the yield of 6-methoxyhexanol was 94% (based on the 6,6-dimethoxycaproate used).
- Example 1 was repeated, using a 5% strength by weight solution of benzaldehyde dimethyl acetal in methanol instead of 2,2-dimethoxy propane.
- the hydrogenation output consisted of 72% toluene, 25% benzyl methyl ether, 1% each of methylcyclohexane and cyclohexylmethylene methyl ether and 0.2% of the starting product.
- Example 3 was repeated using a 30% by weight solution of 6,6-dimethoxycaproic acid methyl ester instead of a 5% by weight solution.
- the yield of 6-methoxyhexanol was 89%.
- the experiment shows that the implementation is also practical on a synthetic scale.
- Example 3 was repeated, but instead of the Cu / Al0 3 / Mn 2 0 3 catalyst, a Cu / Al0 3 catalyst prepared according to WO 02/48128, Example la (50% by weight of CuO, 50 before activation % By weight A1 2 0 3 ) was used. The yield of 6-methoxyhexanol was 85% (based on the 6,6-dimethoxycaproic acid methyl ester used).
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003302024A AU2003302024A1 (en) | 2002-11-19 | 2003-11-11 | Method for the production of ethers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10253752A DE10253752A1 (de) | 2002-11-19 | 2002-11-19 | Verfahren zur Herstellung von Ethern |
DE10253752.6 | 2002-11-19 |
Publications (1)
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WO2004046073A1 true WO2004046073A1 (de) | 2004-06-03 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/EP2003/012562 WO2004046073A1 (de) | 2002-11-19 | 2003-11-11 | Verfahren zur herstellung von ethern |
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AU (1) | AU2003302024A1 (de) |
DE (1) | DE10253752A1 (de) |
WO (1) | WO2004046073A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019077146A1 (en) * | 2017-10-19 | 2019-04-25 | Bp P.L.C. | ETHERIFICATION METHOD |
CN111511710A (zh) * | 2017-10-19 | 2020-08-07 | 英国石油有限公司 | 选择性缩醛化/醚化方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3972949A (en) * | 1974-07-16 | 1976-08-03 | Hoechst Aktiengesellschaft | Process for preparing glycol dimethyl ethers |
EP0434061A1 (de) * | 1989-12-21 | 1991-06-26 | Union Carbide Chemicals And Plastics Company, Inc. | Hydrierung mit Cu-Al-Katalysatoren |
EP0552463A1 (de) * | 1991-12-13 | 1993-07-28 | Süd-Chemie Ag | Chromfreier Katalysator für die Hydrierung von organischen Verbindungen |
EP0810194A1 (de) * | 1996-05-30 | 1997-12-03 | Hoechst Aktiengesellschaft | Verfahren zur Herstellung von 3-Oxyalkylpropan-1-olen |
-
2002
- 2002-11-19 DE DE10253752A patent/DE10253752A1/de not_active Withdrawn
-
2003
- 2003-11-11 WO PCT/EP2003/012562 patent/WO2004046073A1/de not_active Application Discontinuation
- 2003-11-11 AU AU2003302024A patent/AU2003302024A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3972949A (en) * | 1974-07-16 | 1976-08-03 | Hoechst Aktiengesellschaft | Process for preparing glycol dimethyl ethers |
EP0434061A1 (de) * | 1989-12-21 | 1991-06-26 | Union Carbide Chemicals And Plastics Company, Inc. | Hydrierung mit Cu-Al-Katalysatoren |
EP0552463A1 (de) * | 1991-12-13 | 1993-07-28 | Süd-Chemie Ag | Chromfreier Katalysator für die Hydrierung von organischen Verbindungen |
EP0810194A1 (de) * | 1996-05-30 | 1997-12-03 | Hoechst Aktiengesellschaft | Verfahren zur Herstellung von 3-Oxyalkylpropan-1-olen |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019077146A1 (en) * | 2017-10-19 | 2019-04-25 | Bp P.L.C. | ETHERIFICATION METHOD |
CN111315714A (zh) * | 2017-10-19 | 2020-06-19 | 英国石油有限公司 | 醚化方法 |
CN111511710A (zh) * | 2017-10-19 | 2020-08-07 | 英国石油有限公司 | 选择性缩醛化/醚化方法 |
US11377615B2 (en) | 2017-10-19 | 2022-07-05 | Bp P.L.C. | Selective acetalization / etherification process |
US11472759B2 (en) | 2017-10-19 | 2022-10-18 | Bp P.L.C. | Etherification process |
CN111511710B (zh) * | 2017-10-19 | 2023-05-16 | 英国石油有限公司 | 选择性缩醛化/醚化方法 |
CN111315714B (zh) * | 2017-10-19 | 2023-10-27 | 英国石油有限公司 | 醚化方法 |
Also Published As
Publication number | Publication date |
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AU2003302024A1 (en) | 2004-06-15 |
DE10253752A1 (de) | 2004-06-03 |
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