WO2000050370A1 - Verfahren zur herstellung von acetylenalkoholen und deren folgeprodukten - Google Patents
Verfahren zur herstellung von acetylenalkoholen und deren folgeprodukten Download PDFInfo
- Publication number
- WO2000050370A1 WO2000050370A1 PCT/EP2000/001425 EP0001425W WO0050370A1 WO 2000050370 A1 WO2000050370 A1 WO 2000050370A1 EP 0001425 W EP0001425 W EP 0001425W WO 0050370 A1 WO0050370 A1 WO 0050370A1
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- WIPO (PCT)
- Prior art keywords
- mixture
- alcohol
- solvent
- stage
- give
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 105
- -1 acetylene alcohols Chemical class 0.000 title claims description 30
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 title claims description 25
- 239000000203 mixture Substances 0.000 claims abstract description 147
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 74
- 238000006243 chemical reaction Methods 0.000 claims abstract description 55
- 239000002904 solvent Substances 0.000 claims abstract description 51
- 150000001728 carbonyl compounds Chemical class 0.000 claims abstract description 46
- ACIAHEMYLLBZOI-ZZXKWVIFSA-N Unsaturated alcohol Chemical compound CC\C(CO)=C/C ACIAHEMYLLBZOI-ZZXKWVIFSA-N 0.000 claims abstract description 37
- 239000003513 alkali Substances 0.000 claims abstract description 26
- 238000004821 distillation Methods 0.000 claims abstract description 24
- 239000003960 organic solvent Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims abstract description 8
- 150000001345 alkine derivatives Chemical class 0.000 claims description 48
- 239000012074 organic phase Substances 0.000 claims description 37
- 238000002156 mixing Methods 0.000 claims description 35
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 34
- 238000005984 hydrogenation reaction Methods 0.000 claims description 32
- 239000008346 aqueous phase Substances 0.000 claims description 30
- 238000002360 preparation method Methods 0.000 claims description 25
- 150000001298 alcohols Chemical class 0.000 claims description 23
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims description 22
- 238000000926 separation method Methods 0.000 claims description 18
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 16
- 238000000605 extraction Methods 0.000 claims description 16
- 230000007062 hydrolysis Effects 0.000 claims description 16
- 238000006460 hydrolysis reaction Methods 0.000 claims description 16
- 238000006386 neutralization reaction Methods 0.000 claims description 9
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 claims description 6
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 claims description 4
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 claims description 4
- 229910001854 alkali hydroxide Inorganic materials 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- 229940043265 methyl isobutyl ketone Drugs 0.000 claims description 3
- 238000010924 continuous production Methods 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- ACGUYXCXAPNIKK-UHFFFAOYSA-N hexachlorophene Chemical compound OC1=C(Cl)C=C(Cl)C(Cl)=C1CC1=C(O)C(Cl)=CC(Cl)=C1Cl ACGUYXCXAPNIKK-UHFFFAOYSA-N 0.000 abstract 2
- 150000001337 aliphatic alkines Chemical class 0.000 abstract 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 56
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 26
- 239000003054 catalyst Substances 0.000 description 15
- ZWNMRZQYWRLGMM-UHFFFAOYSA-N 2,5-dimethylhexane-2,5-diol Chemical compound CC(C)(O)CCC(C)(C)O ZWNMRZQYWRLGMM-UHFFFAOYSA-N 0.000 description 14
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 14
- 239000012071 phase Substances 0.000 description 14
- 239000011541 reaction mixture Substances 0.000 description 13
- 239000008096 xylene Substances 0.000 description 12
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 10
- CBMSDILKECEMOT-UHFFFAOYSA-N potassium;2-methylpropan-1-olate Chemical compound [K+].CC(C)C[O-] CBMSDILKECEMOT-UHFFFAOYSA-N 0.000 description 10
- 239000000047 product Substances 0.000 description 10
- 239000000725 suspension Substances 0.000 description 10
- IHJUECRFYCQBMW-UHFFFAOYSA-N 2,5-dimethylhex-3-yne-2,5-diol Chemical compound CC(C)(O)C#CC(C)(C)O IHJUECRFYCQBMW-UHFFFAOYSA-N 0.000 description 8
- 238000009833 condensation Methods 0.000 description 8
- 230000005494 condensation Effects 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 8
- 239000007858 starting material Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- MSXVEPNJUHWQHW-UHFFFAOYSA-N 2-methylbutan-2-ol Chemical compound CCC(C)(C)O MSXVEPNJUHWQHW-UHFFFAOYSA-N 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- 239000002585 base Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 229910052763 palladium Inorganic materials 0.000 description 5
- JYVLIDXNZAXMDK-UHFFFAOYSA-N pentan-2-ol Chemical compound CCCC(C)O JYVLIDXNZAXMDK-UHFFFAOYSA-N 0.000 description 5
- 239000000376 reactant Substances 0.000 description 5
- 239000011877 solvent mixture Substances 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 150000001299 aldehydes Chemical class 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- 150000002576 ketones Chemical class 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 150000003254 radicals Chemical class 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- UHEPJGULSIKKTP-UHFFFAOYSA-N sulcatone Chemical compound CC(C)=CCCC(C)=O UHEPJGULSIKKTP-UHFFFAOYSA-N 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 125000001931 aliphatic group Chemical group 0.000 description 3
- 150000001340 alkali metals Chemical class 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229910017053 inorganic salt Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 238000005191 phase separation Methods 0.000 description 3
- 150000003738 xylenes Chemical class 0.000 description 3
- COFFUYZBRGBAQS-FMIVXFBMSA-N (e)-6,10-dimethylundec-5-en-2-one Chemical compound CC(C)CCC\C(C)=C\CCC(C)=O COFFUYZBRGBAQS-FMIVXFBMSA-N 0.000 description 2
- DPLGXGDPPMLJHN-UHFFFAOYSA-N 6-Methylheptan-2-one Chemical compound CC(C)CCCC(C)=O DPLGXGDPPMLJHN-UHFFFAOYSA-N 0.000 description 2
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 241001550224 Apha Species 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- UEXCJVNBTNXOEH-UHFFFAOYSA-N Ethynylbenzene Chemical group C#CC1=CC=CC=C1 UEXCJVNBTNXOEH-UHFFFAOYSA-N 0.000 description 2
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 2
- 229920002266 Pluriol® Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 150000001241 acetals Chemical class 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 2
- KDKYADYSIPSCCQ-UHFFFAOYSA-N but-1-yne Chemical compound CCC#C KDKYADYSIPSCCQ-UHFFFAOYSA-N 0.000 description 2
- 239000007859 condensation product Substances 0.000 description 2
- RWGFKTVRMDUZSP-UHFFFAOYSA-N cumene Chemical compound CC(C)C1=CC=CC=C1 RWGFKTVRMDUZSP-UHFFFAOYSA-N 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000011552 falling film Substances 0.000 description 2
- 150000002334 glycols Chemical class 0.000 description 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229920001515 polyalkylene glycol Polymers 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 229910052707 ruthenium Inorganic materials 0.000 description 2
- 150000003333 secondary alcohols Chemical class 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- PSQYTAPXSHCGMF-BQYQJAHWSA-N β-ionone Chemical compound CC(=O)\C=C\C1=C(C)CCCC1(C)C PSQYTAPXSHCGMF-BQYQJAHWSA-N 0.000 description 2
- SPPWGCYEYAMHDT-UHFFFAOYSA-N 1,4-di(propan-2-yl)benzene Chemical compound CC(C)C1=CC=C(C(C)C)C=C1 SPPWGCYEYAMHDT-UHFFFAOYSA-N 0.000 description 1
- CGHIBGNXEGJPQZ-UHFFFAOYSA-N 1-hexyne Chemical compound CCCCC#C CGHIBGNXEGJPQZ-UHFFFAOYSA-N 0.000 description 1
- LGYNIFWIKSEESD-UHFFFAOYSA-N 2-ethylhexanal Chemical compound CCCCC(CC)C=O LGYNIFWIKSEESD-UHFFFAOYSA-N 0.000 description 1
- UIVTVGBADZCXSF-UHFFFAOYSA-N 2-methylpropan-1-ol;1,2-xylene Chemical group CC(C)CO.CC1=CC=CC=C1C UIVTVGBADZCXSF-UHFFFAOYSA-N 0.000 description 1
- IUDWWFNDSJRYRV-UHFFFAOYSA-N 3,7-dimethyloct-1-en-3-ol Chemical compound CC(C)CCCC(C)(O)C=C IUDWWFNDSJRYRV-UHFFFAOYSA-N 0.000 description 1
- HNVRRHSXBLFLIG-UHFFFAOYSA-N 3-hydroxy-3-methylbut-1-ene Chemical compound CC(C)(O)C=C HNVRRHSXBLFLIG-UHFFFAOYSA-N 0.000 description 1
- USCSRAJGJYMJFZ-UHFFFAOYSA-N 3-methyl-1-butyne Chemical compound CC(C)C#C USCSRAJGJYMJFZ-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- XBDSNLZMMLMIIK-UHFFFAOYSA-N 6,11,14-trimethylpentadecan-2-one Chemical compound CC(C)CCC(C)CCCCC(C)CCCC(C)=O XBDSNLZMMLMIIK-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000007868 Raney catalyst Substances 0.000 description 1
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 1
- 229910000564 Raney nickel Inorganic materials 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 229910000095 alkaline earth hydride Inorganic materials 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 1
- 150000001983 dialkylethers Chemical class 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 239000011981 lindlar catalyst Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- ICMWSAALRSINTC-UHFFFAOYSA-N penta-1,4-dien-3-ol Chemical compound C=CC(O)C=C ICMWSAALRSINTC-UHFFFAOYSA-N 0.000 description 1
- AQIXEPGDORPWBJ-UHFFFAOYSA-N pentan-3-ol Chemical compound CCC(O)CC AQIXEPGDORPWBJ-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000003880 polar aprotic solvent Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 125000000075 primary alcohol group Chemical group 0.000 description 1
- 150000003138 primary alcohols Chemical class 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- NGKSKVYWPINGLI-UHFFFAOYSA-N prop-2-ynylbenzene Chemical group C#CCC1=CC=CC=C1 NGKSKVYWPINGLI-UHFFFAOYSA-N 0.000 description 1
- MWWATHDPGQKSAR-UHFFFAOYSA-N propyne Chemical compound CC#C MWWATHDPGQKSAR-UHFFFAOYSA-N 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- C07C29/36—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring increasing the number of carbon atoms by reactions with formation of hydroxy groups, which may occur via intermediates being derivatives of hydroxy, e.g. O-metal
- C07C29/38—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring increasing the number of carbon atoms by reactions with formation of hydroxy groups, which may occur via intermediates being derivatives of hydroxy, e.g. O-metal by reaction with aldehydes or ketones
- C07C29/42—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring increasing the number of carbon atoms by reactions with formation of hydroxy groups, which may occur via intermediates being derivatives of hydroxy, e.g. O-metal by reaction with aldehydes or ketones with compounds containing triple carbon-to-carbon bonds, e.g. with metal-alkynes
-
- 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
- C07C29/172—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 the obtention of a fully saturated alcohol
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Definitions
- the present invention relates to a multi-stage process for the preparation of alcohols from carbonyl compounds and alkynes and, in a preferred embodiment, to an integrated process for the production of alcohols from carbonyl compounds and alkynes.
- DE-A 2 008 675 describes a process for the preparation of tertiary acetylene glycols by reacting acetylene with ketones.
- No. 2,488,082 describes a process for the preparation of acetylene alcohols, in which acetylene is reacted with a ketone in the presence of an alkali alcoholate of a primary or secondary saturated alcohol.
- FR 950 894 relates to a process for the preparation of an acetylene alcohol in which acetylene is reacted with a ketone in the presence of an alkali metal alcoholate of a primary or secondary alcohol, the alcohol having only one oxygen atom in the molecule and being not completely soluble in water at the chosen reaction temperatures .
- An object of the present invention was to provide an economically and ecologically extremely efficient process for producing unsaturated and saturated alcohols.
- the present invention relates to a process for the preparation of at least one unsaturated alcohol (B), which comprises the following steps (I) to (III): (I) reacting at least one alkali metal or alkaline earth metal hydroxide with at least one alcohol (A) in at least one organic solvent (L) to obtain a mixture (GI) comprising at least the alcohol (A), the solvent (L) and an alcoholate (AL);
- step (III) Distillation of the mixture (G-II) obtained in stage (II) to give the at least one alcohol (B) and a mixture (G-III) comprising the solvent (L) and the alcohol (A), characterized that the solvent (L) obtained in stage (III) and the alcohol (A) obtained in stage (III) are recycled as a mixture in stage (I).
- the mixture (GI) in step (I) which comprises the solvent (L), the alcohol (A) and the alcoholate (AL). It only has to be ensured that (L) and (A) can be added together as starting materials.
- stage (I) is carried out in one or more distillation columns in which or in which the at least one alcoholate is prepared by azeotropic drying. It is possible, for example, to supply (L) and (A) as a mixture as a single educt stream. However, it is also possible to feed (L) and (A) separately and to combine the streams in the at least one column. Of course, it is also possible to use several suitable solvents (L) and / or several suitable alcohols (A). It is conceivable here to feed these in a single educt stream to the at least one column or in two or more educt streams which comprise the respective solvents (L) and / or the respective alcohols (A).
- an aqueous solution of one or more alkali and / or alkaline earth metal hydroxides in one or more feed streams is added as a further starting material.
- alkali and / or alkaline earth hydrides and / or of alkali and / or alkaline earth alkyl compounds is also conceivable.
- the individual feed streams can of course be brought to a desired temperature before the mixing.
- Such pre-tempering is possible using all conceivable methods.
- a mixture is obtained from the at least one alcohol (A) and the at least one alkali and / or alkaline earth hydroxide in the course of carrying out stage (I), which contains at least one alkali or alkaline earth alkoxide and the at least one organic solvent ( L) includes.
- stage (I) contains at least one alkali or alkaline earth alkoxide and the at least one organic solvent ( L) includes.
- This mixture is preferably obtained from the bottom of the column used.
- stage (I) the excess, at least one alcohol (A) is separated from this mixture by distillation. This separation can be carried out both in the same column in which the at least one alcoholate was prepared and in one or more downstream columns. In a preferred embodiment of the present invention, stage (I) is carried out in a single column in which both water and the at least one alcohol (A) are distilled off.
- so much alcohol (A) is removed that the resulting mixture, after the removal of water and the incomplete removal of the at least one alcohol (A), generally alcohol (A) in the range from 0 to 55% by weight contains.
- the process is preferably carried out in such a way that the alcohol (A) is not separated off quantitatively. Rather, the process is carried out in such a way that after the removal of water and the incomplete removal of the at least one alcohol (A), the resulting mixture of alcohol (A) is in the range from 1 to 55% by weight, preferably in the range from 2 to 10 Wt .-% and particularly preferably contains about 5 wt .-%.
- (A) is distilled off together with the water as a multiphase mixture. If this is the case, it is possible within the scope of the method according to the invention feed this separated, multi-phase mixture, comprising water and (L) and / or (A), to a phase separator and to separate the individual phases. So that it is possible to return (L) and / or (A) separated in this way as starting material (e) in stage (I).
- the aqueous phase separated off in this way can also be used in a further stage of the process in the process according to the invention, as described below.
- Alcohols (A) which can be used in the process according to the invention include primary and secondary alcohols having 4 to 8 carbon atoms, such as n-butanol, isobutanol, n-pentanol, 3-methylbutanol-1,2-methylbutanol-1,2 , 2-Dimethylpropanol-l, n-hexanol, 2-ethylhexanol-l, butanol-2, pentanol-2, pentanol-3, 2-methylbutanol-3, 2-methylbutanol-2 or cyclohexanol.
- primary and secondary alcohols having 4 to 8 carbon atoms such as n-butanol, isobutanol, n-pentanol, 3-methylbutanol-1,2-methylbutanol-1,2 , 2-Dimethylpropanol-l, n-hexanol, 2-ethylhexanol-l, butanol-2, pen
- Aprotic, preferably polar aprotic solvents are generally used as organic solvents (L).
- organic solvents L.
- polar aprotic solvents Among others come aliphatic, cycloaliphatic and / or optionally substituted aromatic
- Hydrocarbons such as cyclohexane, benzene, toluene, xylene,
- Cumene or p-diisopropylbenzene acetals of aldehydes and ketones, cyclic or acyclic aliphatic ethers such as, for example, symmetrical or asymmetrical dialkyl ethers of ethane or butane, or glycols such as, for example, polyalkylene glycols with C 2 -C 6 -alkyl radicals or glycol esters.
- dimethyl sulfoxide, N-methylpyrrolidone N-methylpyrrolidone
- the preferred hydroxides in the process according to the invention are the alkali metal hydroxides, KOH being particularly preferred.
- a solution is preferably used which generally has 2 to 60% by weight, preferably 5 to 50% by weight, particularly preferably 30 to 35% by weight of KOH.
- step (II) of the process according to the invention at least one carbonyl compound of the general structure R-CO-R 'is reacted with at least one alkyne of the general structure R "-C ⁇ CH and the mixture (GI) obtained in step (I) Get alcohol (B).
- the alkyne and / or carbonyl compound can be introduced by any suitable method. It is possible, for example, to combine alkyne and carbonyl compound into an educt stream before introducing them into the reactor and to introduce them into the reactor. However, it is of course also possible to introduce alkyne and carbonyl compound separately into the reactor as individual reactant streams. Furthermore, in the event that alkyne and carbonyl compound are introduced separately into the reactor as individual reactant streams, it is possible to introduce alkyne first and then carbonyl compound. Of course, it is also conceivable to introduce alkyne first and then, with continued introduction of the alkyne, to add the carbonyl compound and to introduce alkyne and carbonyl compound in parallel.
- the alkyne and carbonyl compound are introduced simultaneously as separate reactant streams from stage (II) into the mixture (GI) from stage (I).
- the introduction can take place both discontinuously and continuously.
- the introduction is preferably carried out continuously.
- stage (II) Depending on the selected temperature at which the reaction in stage (II) is to take place, it may be expedient to bring the individual components to the required temperature before they are fed into the reactor, which is conceivable by all prior art processes is. In particular, it may be necessary to cool the mixture obtained from stage (I), which is discharged from the column, before being fed into the reactor of stage (II).
- stage (II) the reaction mixture is stirred in stage (II).
- this stirring can be carried out according to all common methods from the prior art. However, it is also conceivable to either carry out the mixing process completely or to support the stirring with a special type of introduction.
- reaction mixture in stage (II) is mixed in a mixing device, as described, for example, in DE-C 42 20 239, which is fully incorporated by reference into the context of the present application, is described. All suitable embodiments of the mixing device described there are conceivable.
- alkyne, carbonyl compound and the mixture from stage (I) can be introduced into the mixing device in separate streams, which accordingly must have at least 3 inlet openings.
- alkyne and carbonyl compound or (b) alkyne and mixture from step (I) or (c) carbonyl compound and mixture from step (I) can be mixed before being introduced into the mixing device, for example using a mixing device of the type described here , and the resulting mixture as a stream and (a) mixture of step (I) or (b) carbonyl compound or (c) alkyne as a further stream are introduced into the mixing device.
- the mixing device must have at least two inlet openings in this case.
- the individual streams which are to be introduced into the mixing device are each divided into two or more streams before the introduction by a suitable device which is connected upstream of the mixing device and are subsequently introduced into the mixing device become.
- two or more mixing devices of the type described here can also be used to mix the individual components which are to be reacted in stage (II). For example, mixtures can be produced in each of these at least two mixing devices, which are then combined.
- the reaction conditions in the mixing device such as temperature and pressure, are selected in this way that no undesirable reactions occur during the mixing process.
- the mixing device is preferably used as a reaction mixing pump. In the mixing device, the individual components which are reacted in stage (II) are both mixed and reacted with one another, as described below.
- Aliphatic, araliphatic or heterocyclic ketones with up to 30 C atoms are used as carbonyl compounds of the general structure R-CO-R 'in the process according to the invention.
- R and R ' can be the same or different and can either be two separate radicals or can be bridged. It is also possible that the radicals R and / or R 'have olefinic or acetylenic functions.
- Examples include acetone, isobutyl methyl ketone, 6,10-dimethyl-5-undecen-2-one, 6.1 l, 14-trimethyl-2-pentadecanone, 2-methyl-2-hepten-6-one, 2-methylheptan-6 -on, [4 (2,6,6-trimethyl-1-cyclohexenyl) -3-buten-2-one], methyl ethyl ketone, cyclohexanone, acetophenone, benzophenone, piperidone-4, where acetone, isobutyl methyketone, 6, 10- Dimethyl-5-undecen-2-one, 6,11,14-trimethyl-2-pentadecanone, 2-methyl-2-hepten-6-one, 2-methylheptan-6-one and [4 (2,6,6 - Trimethyl-l-cyclohexenyl) -3-buten-2-one] are preferred.
- aldehydes which do not contain acidic hydrogen is also conceivable in principle.
- Alkynes of the general structure R "-G ⁇ C-H are those in which R" is selected from the group consisting of hydrogen and an aliphatic, araliphatic or aromatic radical having up to 15 carbon atoms.
- R is selected from the group consisting of hydrogen and an aliphatic, araliphatic or aromatic radical having up to 15 carbon atoms. Examples include acetylene, propyne, 1-butyne, 1-pentine, 1-hexyne, phenylacetylene, benzylacetylene, 3-methyl-1-butyne or compounds such as
- Acetylene is preferably used as the alkyne of the general structure R "-C ⁇ CH in the process according to the invention.
- the following alkynol compounds can thus be prepared from the carbonyl compounds mentioned above as preferred, the term" alkinol "in principle all Compounds comprising both at least one CC triple bond and one or more hydroxyl groups:
- the stoichiometric ratio of carbonyl compound to alkyne can be chosen essentially as desired.
- alkynediols are prepared from carbonyl compound and acetylene
- a stoichiometric ratio of carbonyl compound: acetylene in the range from 1.9: 1 to 2.1: 1, particularly preferably from about 2: 1 is selected.
- the stoichiometric ratio of alcoholate: carbonyl compound is preferably in the range from 0.9: 1 to 2.1: 1, particularly preferably in the range from 1: 1 to 1.5: 1 and in particular approximately 1: 1: 1.
- alkyne monools are prepared from carbonyl compound and acetylene
- a stoichiometric ratio of carbonyl compound: acetylene in the range from 1: 1 to 0.5: 1, particularly preferably from about 0.6: 1 is selected.
- the stoichiometric ratio of alcoholate: carbonyl compound is preferably in the range from 1: 1 to 0.2: 1 and in particular approximately 0.3: 1.
- the reaction temperature in the reaction of corresponding starting materials to alkynediols in the process according to the invention is preferably in the range from 0 to 50 ° C., more preferably in the range from 10 to 40 ° C. and particularly preferably in the range from 25 to 35 ° C.
- the reaction temperature in the conversion of corresponding starting materials to alkyne monools in the context of the process according to the invention is preferably in the range from 0 to 50 ° C., more preferably in the range from 0 to 35 ° C. and particularly preferably in the range from 0 to 20 ° C.
- the pressures in the reactions mentioned in the preparation of alkyne monools and alkynediols in the process according to the invention are preferably in the range from 1 to 20 bar, more preferably in the range from 1 to 5 bar and in particular at 1 bar.
- the yield of unsaturated alcohol (B) which is obtained in step (II) in the process according to the invention is preferably at least 75%, more preferably at least 80%, particularly preferably at least 85% and particularly preferably at least 90% .
- stage (II) is preferably carried out in a reaction mixing pump as described in DE-C 42 20 239, the embodiment of the reaction mixing pump not being limited to the mixing device disclosed therein. All conceivable embodiments of a device in which the starting materials of stage (II) can be both mixed and reacted are also conceivable.
- this stage (II) gives a mixture (G-II) which comprises at least one unsaturated alcohol (B) and (A) and (L).
- step (II) from which at least one unsaturated alcohol (B) is obtained, is followed by a step (II 1 ), in which the at least one unsaturated alcohol is hydrogenated.
- the present invention also relates to a process for the preparation of at least one hydrogenated alcohol (C), which comprises the following steps (I) to (III '):
- step (II) reaction of at least one carbonyl compound of the general structure R-CO-R 'with at least one alkyne of the general structure R "-C ⁇ CH and the mixture (GI) obtained in step (I) to give a mixture (G-II) comprising at least the alcohol (A), the solvent (L) and an unsaturated alcohol (B);
- stage (III ') distillation of the mixture (G-IF) obtained in stage (IF) to give the at least one alcohol (C) and a mixture (G-IIF) comprising the solvent (L) and the alcohol (A), characterized in that the solvent (L) obtained in stage (IIP) and the alcohol (A) obtained in stage (IIP) are recycled as a mixture in stage (I). Since an alkyne monool and / or an alkyne diol is formed in stage (II), depending on the choice of the reactants, various hydrogenations are conceivable in the context of the present process.
- the alkyne monool or alkyne diol can be hydrogenated to the corresponding alkenol in a partial hydrogenation.
- the respective hydrogenation can in principle be carried out by all suitable methods according to the prior art.
- the respective hydrogenation can be carried out in one reactor or in several reactors connected in series.
- Each reactor can be operated in all conceivable modes of operation, the trickle and bottom mode in the fixed bed reactor should be mentioned above all.
- the hydrogenation takes place in two tube reactors (fixed bed) connected in series, the first of which is back-mixed in a trickle mode, the second in a straight pass in a trickle or bottoms mode.
- the components which are introduced into one or more of the hydrogenation reactors preheated or also precooled before the introduction. This can be done, for example, in one or more heat exchangers.
- catalysts include Pd or Pd / Pb on CaCO 3 (Lindlar catalyst). If necessary, the catalysts, such as Pd, are partially poisoned to achieve good selectivities, for example by CO.
- catalysts known from the prior art can also be used for this.
- Known catalysts are, for example, Pd, Pt, Ni (also Raney nickel), Co, Ru or Rh catalysts, which can be supported or used as full contact catalysts.
- All suitable common supports such as Al 2 O 3 , SiO or C can be used as supports.
- supported catalysts or full contacts are used as catalysts.
- the metals of the 1st, 7th and 8th subgroup of the periodic table are to be mentioned as the active hydrogenation metal.
- Ni, Ru, Pd, Pt and Rh are preferably used.
- a supported Pd catalyst is used as catalyst in the process according to the invention, the support material comprising aluminum oxide.
- the hydrogenation of the alkynols to the respective alkanols takes place in the process according to the invention at pressures of generally 1 to 300 bar, preferably 10 to 200 bar, particularly preferably 15 to 100 bar and particularly preferably 20 to 50 bar.
- the temperatures during the hydrogenation in the process according to the invention for the hydrogenation of alkynols to the respective alkanols are generally in the range from 30 to 250 ° C., preferably in the range from 50 to 200 ° C. and particularly preferably in the range from 80 to 160 ° C.
- the temperatures during the hydrogenation are generally in the range from 30 to 200 ° C., preferably in the range from 30 to 150 ° C. and particularly preferably in the range from 50 to 130 ° C.
- stage (II) which consists of the mixture obtained in stage (II)
- stage (II) Another possibility for this is to divide the product stream from stage (II), which consists of the mixture obtained in stage (II), into two or more streams and to hydrogenate each stream in separate reactors, with the hydrogenation conditions in each reactor can be different and thus alkenols and alkanols can be prepared from the alkynol in a simple manner.
- alkenols and / or alkanols can be prepared from the alkynols preferably described above:
- DMHD 2,5-dimethylhexane-2,5-diol
- 3-methyl-3-hydroxybut-l-ene 2-methyl-2-hydroxybutane, 3.7.1 l-trimethyl-3- hydroxy-l, 6-dodecadiene, 3,7,11,15-tetramethyl-hexadec-l-en-3-ol, 3,7-dimethyl-l, 6-octadien-3-ol, 3,7- Dimethyl-oct-l-en-3-ol, 3-methyl-l- (2,6,6-trimethyl-l-cyclohexen-l-yl), 1,4-pentadien-3-ol, 3-methyl- 1 - (2,6,6-trimethyl-1-cyclohexen-1-yl).
- stage (IF) is not limited to hydrogenation of the triple bond of the at least one alkynol obtained from stage (II).
- the radicals R and / or R 'and / or R are chemically modified in stage (II 1 ), by carrying out reactions on functional groups contained in these residues, for example, and it is also conceivable in the process according to the invention that such reactions are carried out in addition to the hydrogenations described above.
- stage (II), as described above is carried out in individual steps (i) to (vi). Accordingly, the present invention also relates to a process as described above, characterized in that step (II) comprises the following steps (i) to (vi):
- step (i) reaction of at least one carbonyl compound of the general structure R-CO-R 'with at least one alkyne of the general structure R "-C ⁇ CH and the mixture (GI) obtained in step (I) to give a mixture (Mi);
- step (v) neutralization of the at least one organic phase extracted in step (iv) to give a mixture (M-v) comprising at least one alkali or alkaline earth metal salt; (vi) separation of the at least one alkali or alkaline earth metal salt from the mixture (Mv) obtained in step (v) to give a mixture (G-II) comprising at least the alcohol (A), the solvent (L) and an unsaturated alcohol (B).
- step (ii) The reaction of the at least one carbonly compound with the at least one alkyne and the mixture (GI) obtained in step (I), as described above, initially results in a mixture (Mi) which is fed to step (ii).
- step (ii) the at least one unsaturated alcohol (B) is released by hydrolysis.
- this can be carried out in one or more reactors, the temperature in the respective reactor possibly being regulated.
- cooling by brine is conceivable. Cooling of the hydrolysis water is also conceivable, which can also be carried out by all conceivable methods according to the prior art.
- reaction mixture is stirred when the hydrolysis is carried out, it being possible for this to be carried out by all customary methods of the prior art.
- a mixing device as described above and disclosed for example in DE-C 42 20 239 can be used for stirring and mixing.
- the aqueous phase used for this hydrolytic step (ii) results from the extraction in step (iv).
- other water can also be added. Both the water used for the hydrolysis and the reaction mixture to be hydrolyzed can be brought to the desired temperature before being introduced into the at least one hydrolysis reactor, which can be done for example by heat exchangers.
- step (ii) gives a mixture (M-ii) which consists of at least two phases, at least one organic phase and at least one aqueous phase.
- step (iii) the at least one organic phase is separated from this mixture (M-ii).
- this phase separation can be carried out by all common methods. It is conceivable that if two or more organic phases are present, these are separated off together as a multiphase organic mixture or as two or more separate organic phases. It is also conceivable for two or more aqueous phases to separate them together as a multi-phase aqueous mixture or as two or more separate aqueous phases.
- the hydrolyzed mixture (M-ii) from step (ii) is passed into one or more phase separation vessels, which can be designed such that the temperature of the multiphase mixture to be separated can be regulated in the separation vessel.
- the phase separation preferably takes place at temperatures which are generally in the range from 10 to 80 ° C., preferably in the range from 20 to 60 ° C. and particularly preferably in the range from 40 ° C.
- the at least one aqueous phase which has an alkali metal and / or alkaline earth metal hydroxide content in the range from 2 to 60% by weight, preferably in the range from 30 to 35% by weight, is used as The starting material is recycled to stage (I).
- a base concentration in the alcoholate preparation in step (I) which enables the preparation of the at least one alcoholate (AL) it may be necessary in step (I), in addition to the aqueous solution obtained from step (iii), Alkali and / or alkaline earth hydroxide comprising at least one aqueous phase, a further aqueous solution which comprises alkali and / or alkaline earth hydroxide is added.
- the at least one organic phase is extracted in a next step (iv). If a single organic phase or a mixture comprising several organic phases was separated off in step (iii), this phase or this mixture is extracted. If several organic phases have been separated off, it is conceivable, for example, to extract each individual organic phase separately. In a preferred embodiment of the present invention, the extraction is carried out using the aqueous phase which is obtained from stage (I) by distillation. It is of course conceivable that additional water is added to this aqueous phase.
- the extraction can be carried out by all possible methods known from the prior art, for example using a mixing device as described above and disclosed in DE-C 42 20 239.
- the use of columns such as sieve plate columns, pulsating lifting plate columns or packed columns is to be mentioned here, among other things.
- the extraction is carried out in a countercurrent process, the temperature of the extraction material during the extraction generally being in the range from 30 to 50 ° C., preferably around 40 ° C.
- the present invention also relates to a method as described above, characterized in that the extraction in step (iv) is carried out as countercurrent extraction.
- the at least one alkali or alkaline earth hydroxide is withdrawn from the at least one organic phase to such an extent that the alkali and / or alkaline earth hydroxide content of the at least one organic phase is less than 1% by weight, preferably less than 0, 1 wt .-% and particularly preferably less than 0.01 wt .-%.
- the aqueous phase resulting from the extraction is recycled in step (ii).
- the at least one extracted organic phase can be neutralized in the further step (v).
- the neutralization is carried out by adding acid, the acids being among others phosphoric acid, formic acid, acetic acid, sulfuric acid or carbonic acid.
- the use of solid carbon dioxide is also conceivable.
- Phosphoric acid is preferably used in the process according to the invention.
- step (vi) the at least one alkali or alkaline earth salt formed during the neutralization is separated from the mixture (M-v) obtained from step (v).
- This separation can generally be carried out by all methods known from the prior art. Salt separation can be omitted in the process according to the invention if the product from which the salt is separated is subjected to relatively little thermal stress. This is the case, for example, when the at least one unsaturated alcohol (B) is not hydrogenated.
- the at least one inorganic salt is separated from the at least one mixture (Mv) obtained in step (v) by total evaporation of the organic substances by using, for example, a thin-film evaporator or a falling film evaporator.
- the at least one remaining inorganic salt is rinsed out of the evaporator by means of one or more suitable substances.
- suitable substances for this include polyalkylene glycols such as polyethylene glycol.
- a proportion of at least 0.5%, preferably 1 to 2% and particularly preferably at least 1 to 10% of the substances used to rinse out the at least one inorganic salt is recycled.
- the salt can also be separated off Ion exchange take place.
- Ion exchange all suitable methods known from the prior art are conceivable.
- the high-boiling sump which is obtained in the distillation in stage (III) is passed into the evaporator. This ensures that residues of valuable product contained in the high boiler sump are returned to the process.
- Another advantage associated with this recirculation is the fact that the high boiler sump mentioned acts as a lubricant for the evaporator.
- the evaporator distillate which results from the total evaporation of the organic substances, is condensed in the process according to the invention.
- this condensation takes place in at least two, in a further preferred embodiment in two steps.
- the temperature at which the first condensation step takes place is generally in the range from 30 to 80 ° C., preferably in the range from 35 to 50 ° C. and more preferably at 40 ° C.
- the temperature at which the second condensation step takes place is generally in the range from 0 to 40 ° C., preferably in the range from 5 to 10 ° C. and more preferably at about 10 ° C.
- the mixture (G-II) which is obtained after the condensation steps and which comprises the at least one unsaturated alcohol (B), (L) and (A) is then fed to stage (II ') or (III). It is conceivable that, in the case of several condensation steps, only the condensate of one condensation step in one step (II ') and / or (III) is further processed. But it is also possible that several
- Condensate flows are processed together in stage (IF) and / or (III).
- step (III) of the present invention the mixture (G-IF) or (G-IF) obtained from the previous step is distilled and this distillation gives the at least one alcohol (B) or (C) prepared in the previous step .
- the at least one organic solvent (L) and the at least one alcohol (A) are also separated off.
- This distillation can in turn be carried out using all of the customary methods known from the prior art. In a preferred embodiment of the process according to the invention, the distillation is carried out in a packed column with a dividing wall.
- stage (III) The (L) and (A) obtained after the distillation in stage (III) are recycled as starting materials in stage (I) by the process according to the invention, where (L) and (A) are separated from one another or as a mixture in stage (I) can be returned.
- the at least one alcohol obtained from stage (III) or (IIP) by distillation and produced in stage (II) or in stages (II) and (IF) is in a further one Stage (IV) made up.
- the present invention also relates to a process as described above, which comprises the further step (IV):
- Packaging of the at least one alcohol B or C which is prepared in stage (II) or in stages (II) and (IF) and is obtained in stage (III) or in stage (IIP).
- the assembly can be done according to all common and known methods according to the state of the art and can in principle be based on which method is the cheapest for processing and in which form the assembled material should be available.
- each of stages (I), (II), (IF), (III), (IIP) and (IV) and each of steps (i) to (vi) can be carried out continuously or batchwise.
- these steps and steps are designed so that each step and step can be carried out continuously.
- the present invention also relates to a method as described above, characterized in that each step and each step is carried out as a continuous process.
- the present invention also relates to a process as described above, characterized in that the radicals R and R 'of the carbonyl compound of the general structure R-CO-R' are identical or different and are straight-chain, branched-chain or cyclic, optionally unsaturated aliphatic radicals.
- acetone and methyl isobutyl ketone are used as the preferred carbonyl compound according to this process.
- the present invention therefore also relates to a process as described above, characterized in that the carbonyl compound of the general structure R-CO-R is acetone or methyl iso-butyl ketone.
- Acetylene is used as the preferred alkyne of the general structure in the process according to the invention. Accordingly, the The present invention also a process as described above, characterized in that acetylene is used as the alkyne of the general structure R "-C ⁇ CH.
- the present invention provides a process for the preparation of at least one alcohol in which a large number of products resulting from the individual steps and steps are recycled into the process. This provides a cost-saving and ecologically efficient process, which is further improved by the preferred continuous operation of each stage and step.
- the present invention therefore also relates to an integrated process for the preparation of at least one unsaturated alcohol (B), which comprises the following continuously carried out steps (a) to (h):
- step (b) reacting at least one carbonyl compound of the general structure R-CO-R 'with at least one alkyne of the general structure R "-C ⁇ CH and the mixture (Ga) obtained in step (a) to give a mixture (Gb) comprising at least one unsaturated alcohol
- reaction B the reaction preferably being carried out in a reaction mixing pump
- step (c) hydrolysis of the mixture (Gb) from step (b) using the aqueous phase (Pe) obtained in step (e) to obtain a multi-phase Mixture (Mc) comprising at least one organic phase and at least one aqueous phase;
- step (d) separation of the at least one organic phase from the multiphase mixture (M-c) obtained in step (c) to give at least one aqueous phase (P-d) which is recycled in step (a);
- step (e) countercurrent extraction of the at least one organic phase separated in step (d) using the aqueous phase (P-a) obtained in step (a) and to obtain an aqueous phase (P-e) which is recycled to step (c);
- step (f) neutralization of the at least one organic phase obtained in step (e) to give a mixture (Gf) comprising at least one alkali or alkaline earth metal salt, and at least the alcohol (A), the solvent (L) and the at least one unsaturated alcohol ( B);
- step (g) separation of the at least one alkali or alkaline earth metal salt from the mixture (Gf) obtained in step (f) to give a mixture (Gg) comprising at least the alcohol (A), the solvent (L) and the at least one unsaturated alcohol (B);
- step (h) distilling the mixture (G-g) obtained in step (g) to obtain the at least one unsaturated alcohol (B), to obtain a mixture (M-h) comprising the solvent (L) and the alcohol (A), and under
- the present invention also relates to an integrated process for the preparation of at least one hydrogenated alcohol (C) which has the continuously carried out steps (a) to (g), as described above, and the steps (g ') and (h 1 ) carried out continuously, which are carried out after step (g):
- step (g ') hydrogenating the at least one unsaturated alcohol (B) in the mixture (Gg) obtained from step (g) to give a mixture (G-g') comprising at least the alcohol (A), the solvent (L) and at least one hydrogenated alcohol (C);
- step (h ') distillation of the mixture (Gg 1 ) obtained in step (g') to give the at least one hydrogenated alcohol (C), to give a mixture (M-h ') comprising the solvent (L) and the alcohol ( A), and to obtain a mixture (Gh 1 ) containing small amounts of the at least one hydrogenated alcohol (C), the solvent (L) and the alcohol (A) being recycled as a mixture in step (a) and the mixture (Gh 1 ), containing small amounts of the at least one hydrogenated alcohol (C), is recycled to stage (g).
- FIG. 1 shows an embodiment of the method according to the invention for the production of DMHD. Describe in it
- the experiment was carried out on a laboratory column with an inner diameter of 80 mm and 40 bubble-cap trays.
- the working pressure of the column was 900 mbar.
- the vapors obtained were condensed out by means of a condenser and passed into a phase separator heated to 50 ° C.
- the organic phase was moved out of the phase separator back into the column, the aqueous phase was drawn off into a storage vessel in a level-controlled manner.
- the bottom of the column consisted of a double-jacketed stirred tank which was heated with heat transfer oil at a temperature of 218 ° C.
- the bottom discharge from the column was level-controlled by means of a bottom drain valve in a receiver.
- the head temperature in the test was 91 ° C, the bottom temperature was 140 ° C.
- the KOH conversion was determined to be 99.47%
- the KOiBu content of the suspension was determined to be 5.52 mol / kg. 3784 g of aqueous phase were removed from the phase separator.
- the bottom temperature was 140 ° C, the oil jacket of the sump was operated at 222 ° C.
- the column head pressure was 900 mbar, the head temperature was 91 ° C.
- the phase separator in the head was thermostatted to 50 ° C. 220 g / h of aqueous potassium hydroxide solution with a concentration of 33% by weight of KOH were fed to the top of the column. A mixture of 45% by weight of isobutanol and 55% by weight of orthoxylol was fed to the top of the column.
- the fourth tray was regulated to 130 ° C. by regulating the feed quantity of the isobutanol-xylene mixture.
- the conversion of the KOH was 97.16%, the isobutylate content of the suspension was 4.37 mol / kg.
- the temperature in the sump was 140 ° C, the oil bath temperature 222 ° C.
- the head temperature was 91 ° C. at a pressure of 900 mbar.
- Recycled potassium hydroxide solution from the hydrolysis of the ethynylation product and solvent mixture from the purifying distillation were used as feeds.
- the concentration of the potassium hydroxide solution was 32.67% by weight, the alkali contained 0.38% by weight of dimethylhexynediol as the main impurity.
- the composition the solvent mixture was 39.2% by weight of isobutanol, 48.1% by weight of xylene, 4.5% by weight of water and 2.4% by weight of tert-amyl alcohol.
- the feed amount of the potassium hydroxide solution was 220 g / h, the feed amount of solvent mixture was adjusted to 130 ° C. by regulating the temperature on the fourth plate of the column.
- the stirrer is operated at 600 rpm.
- the reaction mixture was cooled in an external pump circuit, consisting of a gear pump and a double-walled tube cooler.
- the pump output was between 1 1 / min and 4 1 / min.
- the total reaction volume used was 1.09.
- the organic phase contained 363 g / h dimethylhexynediol (DMHDY) (yield 92%) and 10 g / h acetone (conversion 97%) and a residual KOH content of approx. 90 g / h.
- the aqueous phase contained 8 g / h of organic substances and 260 g / h KOH.
- the organic phase was extracted in a two-stage mixer-settler system with water in countercurrent.
- the extracted organic phase (1490 g / h) contained a residual content of 0.005 g / h KOH and 130 g / h water.
- the residual KOH was neutralized with phosphoric acid (40% in water).
- reaction mixing pump with a nominal volume of 20 ml, 52.9 g of a potassium isobutylate / xylene suspension (0.45 mol / kg), 127 g of acetone (2.18 mol) and 114 g of acetylene gas (4 , 4 mol).
- the reaction mixture which was very well mixed in the reaction mixing pump, was passed through a pumping circuit in which a heat exchanger was located. The reaction mixture was thereby kept at a reaction temperature of 10 ° C.
- the volume flow in the pump circuit was in the range of 80 to 100 1 / h. Out of the pump circuit led a post-reaction section into a hydrolysis vessel, where the reaction mixture was hydrolyzed with 500 g / h of water.
- methylbutinol was obtained with a conversion of 98% and a yield of 85%.
- Dimethylhexynediol is identified as a by-product with a yield of 3%.
- Example 8 Salt separation by total distillation (salt separation from the extracted crude DMHDY (dimethylhexynediol) solution by total evaporation)
- the extracted crude DMHDY solution was pumped at a flow rate of 743 g / h (172 g / h DMHDY) into an evaporator operated at 150 mbar and 170 ° C.
- 7 g / h of a high-boiling sump condenser (PLURIOL®) were added to the feed.
- 722 g / h vapors (168 g / h DMHDY) were collected in two condensers tempered at 40 ° C and 5 ° C.
- 4 g / h of organic substance xylenes, isobutanol
- the hydrogenation of the crude DMHDY solution was carried out continuously on a spherical supported catalyst (diameter: 2-4 mm, 0.25% Pd on Al 2 O 3 ) in two tubular reactors connected in series.
- the reactors had a free reactor cross section of 656 mm 2 , a length of 1.7 m and a fillable volume of 800 ml.
- the reactors were heated.
- the internal temperature of the reactors could be measured at the top, in the middle and in the lower part of the reactors. Both reactors were filled with 250 ml of catalyst in the middle, the remaining volume was filled with an inert glass ball.
- the test was carried out on a laboratory column with an inner diameter of 50 mm.
- the middle part of the column was divided into two symmetrical parts by a partition.
- the lower, undivided section of the column (30 cm high) was filled with fabric packing (1200 m 2 / m 3 surface).
- the divided area of the column (90 cm high) was filled with wire rings (diameter 3 mm).
- a swivel funnel was attached over the middle part of the column and divided the liquid flow (distribution ratio inlet side: outlet side of 3: 7).
- the uppermost part of the column (height 60 cm) was equipped with laboratory fabric packing (1200 m 2 / m 3 ).
- the top pressure of the column was 200 mbar.
- the bottom temperature was regulated to 185.degree. C. by the bottom draw amount, the bottom heater temperature was 205.degree.
- the side draw amount was adjusted by regulating the sump level.
- the reflux ratio was adjusted by controlling the temperature in the middle of the upper column section.
- 150 g / h were set as the feed rate.
- the control temperature in the upper part of the column was 120 ° C.
- a total of 3567 g of a mixture of the composition 60% by weight of isobutanol, 13% by weight of xylene, 13.1% by weight of dimethylhexanediol and 8% by weight of water were added.
- various trace components, mainly condensation products of acetone, were contained in the feed mixture.
- the bottom temperature was 202 ° C, the bottom temperature was controlled at 185 ° C.
- the feed mixture had the composition: 30% by weight of isobutanol, 23.8% by weight of dimethylhexanediol, 34% by weight of xylenes, 2% by weight of methylbutanol, 8% by weight of water.
- various trace components mainly condensation products of acetone, were contained in the feed mixture.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT00906367T ATE258907T1 (de) | 1999-02-22 | 2000-02-22 | Verfahren zur herstellung von acetylenalkoholen und deren folgeprodukten |
DE50005197T DE50005197D1 (de) | 1999-02-22 | 2000-02-22 | Verfahren zur herstellung von acetylenalkoholen und deren folgeprodukten |
JP2000600955A JP4625186B2 (ja) | 1999-02-22 | 2000-02-22 | アセチレンアルコールの製造方法およびその二次製品 |
US09/913,979 US6956141B1 (en) | 1999-02-22 | 2000-02-22 | Method for preparing acetylene alcohols and their secondary products |
EP00906367A EP1161407B1 (de) | 1999-02-22 | 2000-02-22 | Verfahren zur herstellung von acetylenalkoholen und deren folgeprodukten |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19907532.8 | 1999-02-22 | ||
DE19907532A DE19907532A1 (de) | 1999-02-22 | 1999-02-22 | Verfahren zur Herstellung von Acetylenalkoholen und deren Folgeprodukten |
Publications (1)
Publication Number | Publication Date |
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WO2000050370A1 true WO2000050370A1 (de) | 2000-08-31 |
Family
ID=7898411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/001425 WO2000050370A1 (de) | 1999-02-22 | 2000-02-22 | Verfahren zur herstellung von acetylenalkoholen und deren folgeprodukten |
Country Status (8)
Country | Link |
---|---|
US (1) | US6956141B1 (de) |
EP (1) | EP1161407B1 (de) |
JP (1) | JP4625186B2 (de) |
CN (1) | CN1213975C (de) |
AT (1) | ATE258907T1 (de) |
DE (2) | DE19907532A1 (de) |
ES (1) | ES2215610T3 (de) |
WO (1) | WO2000050370A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2479565C1 (ru) * | 2012-03-07 | 2013-04-20 | Федеральное государственное бюджетное учреждение науки Иркутский институт химии им. А.Е. Фаворского Сибирского отделения Российской академии наук РАН (ИрИХ СО РАН) | Способ получения алкиларил (гетарил) этинилкарбинолов |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10123066A1 (de) * | 2001-05-11 | 2002-11-14 | Basf Ag | Verfahren zur Herstellung von höheren alpha,beta-ungesättigten Alkoholen |
CN101234950B (zh) * | 2008-02-02 | 2010-12-29 | 泸州富邦化工有限公司 | 萃取及减压蒸馏法生产2,5-二甲基-2,5-己二醇工艺 |
KR101191122B1 (ko) | 2009-01-20 | 2012-10-15 | 주식회사 엘지화학 | 고순도 노르말 부탄올 생산용 분리벽형 증류탑, 및 노르말 부탄올 증류방법 |
EP2409746A4 (de) * | 2009-03-19 | 2012-05-30 | Lg Chemical Ltd | Teilung von wanddestillationssäulen zur herstellung von hochreinem 2-ethylhexanol und fraktionierungsverfahren damit |
NZ631419A (en) | 2012-02-29 | 2017-03-31 | Baruch S Blumberg Inst | Inhibitors of hepatitis b virus covalently closed circular dna formation and their method of use |
WO2014114710A1 (en) * | 2013-01-23 | 2014-07-31 | Dsm Ip Assets B. V. | Process for the production of 2-alkyl-3-butyn-2-ols |
EP3500561B1 (de) | 2016-08-19 | 2020-06-17 | Nitto Belgium NV | Herstellung von tmthf |
CN107827711B (zh) * | 2017-10-31 | 2023-09-29 | 西南化工研究设计院有限公司 | 一种联产甲基丁炔醇和二甲基己炔二醇的系统及工艺 |
KR102434452B1 (ko) * | 2018-11-28 | 2022-08-19 | 주식회사 엘지화학 | 가교제 화합물의 제조 방법 |
CN110467519B (zh) * | 2019-09-16 | 2022-08-05 | 万华化学集团股份有限公司 | 一种乙炔化方法 |
CA3150254C (en) * | 2019-09-17 | 2024-01-02 | Hao HONG | Method for addition reaction of acetylene and ketone compound |
CN113717031B (zh) * | 2021-09-27 | 2024-04-12 | 四川众邦新材料股份有限公司 | 一种联产四甲基十二炔二醇和二甲基庚炔醇的方法 |
CN113735685B (zh) * | 2021-09-27 | 2024-03-01 | 四川众邦新材料股份有限公司 | 联产二甲基己炔二醇和甲基丁炔醇的方法 |
CN113816835B (zh) * | 2021-09-27 | 2024-04-12 | 四川众邦新材料股份有限公司 | 一种联产二甲基癸炔二醇和甲基己炔醇的方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR950894A (fr) * | 1944-10-23 | 1949-10-10 | Distillers Co Yeast Ltd | Perfectionnements à la fabrication d'alcools acétyléniques |
US2488082A (en) * | 1944-10-23 | 1949-11-15 | Distillers Co Yeast Ltd | Manufacture of acetylenic alcohols |
DE19500479A1 (de) * | 1994-01-10 | 1995-07-13 | Air Prod & Chem | Hydrierung von Acetylenverbindungen |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2385546A (en) * | 1943-11-05 | 1945-09-25 | Commercial Solvents Corp | Continuous process for the preparation of acetylenic alcohols |
DE2008675A1 (de) | 1970-02-25 | 1971-09-09 | Badische Anilin & Soda Fabrik AG, 6700 Ludwigshafen | Verfahren zur Herstellung von tertiären Acetylenglykolen durch Umsetzung von Acetylen mit Ketonen |
DE4220239C2 (de) * | 1992-06-20 | 1996-03-07 | Basf Ag | Mischvorrichtung |
-
1999
- 1999-02-22 DE DE19907532A patent/DE19907532A1/de not_active Withdrawn
-
2000
- 2000-02-22 CN CNB008054339A patent/CN1213975C/zh not_active Expired - Fee Related
- 2000-02-22 WO PCT/EP2000/001425 patent/WO2000050370A1/de active IP Right Grant
- 2000-02-22 US US09/913,979 patent/US6956141B1/en not_active Expired - Fee Related
- 2000-02-22 EP EP00906367A patent/EP1161407B1/de not_active Expired - Lifetime
- 2000-02-22 ES ES00906367T patent/ES2215610T3/es not_active Expired - Lifetime
- 2000-02-22 JP JP2000600955A patent/JP4625186B2/ja not_active Expired - Fee Related
- 2000-02-22 AT AT00906367T patent/ATE258907T1/de not_active IP Right Cessation
- 2000-02-22 DE DE50005197T patent/DE50005197D1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR950894A (fr) * | 1944-10-23 | 1949-10-10 | Distillers Co Yeast Ltd | Perfectionnements à la fabrication d'alcools acétyléniques |
US2488082A (en) * | 1944-10-23 | 1949-11-15 | Distillers Co Yeast Ltd | Manufacture of acetylenic alcohols |
DE19500479A1 (de) * | 1994-01-10 | 1995-07-13 | Air Prod & Chem | Hydrierung von Acetylenverbindungen |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2479565C1 (ru) * | 2012-03-07 | 2013-04-20 | Федеральное государственное бюджетное учреждение науки Иркутский институт химии им. А.Е. Фаворского Сибирского отделения Российской академии наук РАН (ИрИХ СО РАН) | Способ получения алкиларил (гетарил) этинилкарбинолов |
Also Published As
Publication number | Publication date |
---|---|
EP1161407A1 (de) | 2001-12-12 |
EP1161407B1 (de) | 2004-02-04 |
JP2002537367A (ja) | 2002-11-05 |
ES2215610T3 (es) | 2004-10-16 |
JP4625186B2 (ja) | 2011-02-02 |
DE19907532A1 (de) | 2000-08-31 |
US6956141B1 (en) | 2005-10-18 |
DE50005197D1 (de) | 2004-03-11 |
CN1344239A (zh) | 2002-04-10 |
ATE258907T1 (de) | 2004-02-15 |
CN1213975C (zh) | 2005-08-10 |
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