DE1468824C3 - - Google Patents
Info
- Publication number
- DE1468824C3 DE1468824C3 DE19651468824 DE1468824A DE1468824C3 DE 1468824 C3 DE1468824 C3 DE 1468824C3 DE 19651468824 DE19651468824 DE 19651468824 DE 1468824 A DE1468824 A DE 1468824A DE 1468824 C3 DE1468824 C3 DE 1468824C3
- Authority
- DE
- Germany
- Prior art keywords
- catalyst
- niobium
- vanadium
- temperature
- percent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- VLDPXPPHXDGHEW-UHFFFAOYSA-N 1-chloro-2-dichlorophosphoryloxybenzene Chemical compound ClC1=CC=CC=C1OP(Cl)(Cl)=O VLDPXPPHXDGHEW-UHFFFAOYSA-N 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 10
- 238000007254 oxidation reaction Methods 0.000 claims description 8
- 230000003647 oxidation Effects 0.000 claims description 7
- 150000004996 alkyl benzenes Chemical class 0.000 claims description 3
- 230000003197 catalytic effect Effects 0.000 claims description 3
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims 1
- 229910017604 nitric acid Inorganic materials 0.000 claims 1
- 239000003054 catalyst Substances 0.000 description 47
- 239000010955 niobium Substances 0.000 description 28
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 19
- 229910052758 niobium Inorganic materials 0.000 description 17
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 17
- 239000007789 gas Substances 0.000 description 12
- 229910052720 vanadium Inorganic materials 0.000 description 12
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 9
- -1 alkyl aromatic hydrocarbons Chemical class 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- SQNZJJAZBFDUTD-UHFFFAOYSA-N durene Chemical compound CC1=CC(C)=C(C)C=C1C SQNZJJAZBFDUTD-UHFFFAOYSA-N 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 8
- 229910010271 silicon carbide Inorganic materials 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000008187 granular material Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical group CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 6
- 235000006408 oxalic acid Nutrition 0.000 description 6
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 6
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 5
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- PJDWNSYGMXODTB-UHFFFAOYSA-N 1,2,3,4,4a,4b,5,6-octahydrophenanthrene Chemical compound C1=CCCC2C(CCCC3)C3=CC=C21 PJDWNSYGMXODTB-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 4
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 description 4
- XNHGKSMNCCTMFO-UHFFFAOYSA-D niobium(5+);oxalate Chemical compound [Nb+5].[Nb+5].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O XNHGKSMNCCTMFO-UHFFFAOYSA-D 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- VTIBBOHXBURHMD-UHFFFAOYSA-N 1,2,3,4,4a,5,10,10a-octahydroanthracene Chemical compound C1=CCC2CC(CCCC3)C3=CC2=C1 VTIBBOHXBURHMD-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 239000012876 carrier material Substances 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 3
- 229940078552 o-xylene Drugs 0.000 description 3
- FYGHSUNMUKGBRK-UHFFFAOYSA-N 1,2,3-trimethylbenzene Chemical compound CC1=CC=CC(C)=C1C FYGHSUNMUKGBRK-UHFFFAOYSA-N 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 150000008064 anhydrides Chemical class 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- CYIDZMCFTVVTJO-UHFFFAOYSA-N pyromellitic acid Chemical compound OC(=O)C1=CC(C(O)=O)=C(C(O)=O)C=C1C(O)=O CYIDZMCFTVVTJO-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- PULUUPKYWQEYCF-UHFFFAOYSA-N 1,2,3,4-tetrapropylbenzene Chemical compound CCCC1=CC=C(CCC)C(CCC)=C1CCC PULUUPKYWQEYCF-UHFFFAOYSA-N 0.000 description 1
- FAWZMJHFENIDPI-UHFFFAOYSA-N 1,2-diethyl-3,4-dimethylbenzene Chemical compound CCC1=CC=C(C)C(C)=C1CC FAWZMJHFENIDPI-UHFFFAOYSA-N 0.000 description 1
- DIUALWFQMYOAFP-UHFFFAOYSA-N 1,3,6,8-tetraoxofuro[3,4-e][2]benzofuran-4,5-dicarboxylic acid Chemical compound O=C1OC(=O)C2=C1C(C(=O)O)=C(C(O)=O)C1=C2C(=O)OC1=O DIUALWFQMYOAFP-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- YIAXCZOLGQOSHC-UHFFFAOYSA-D C(C(=O)[O-])(=O)[O-].[Nb+5].[V+5].C(C(=O)[O-])(=O)[O-].C(C(=O)[O-])(=O)[O-].C(C(=O)[O-])(=O)[O-].C(C(=O)[O-])(=O)[O-] Chemical compound C(C(=O)[O-])(=O)[O-].[Nb+5].[V+5].C(C(=O)[O-])(=O)[O-].C(C(=O)[O-])(=O)[O-].C(C(=O)[O-])(=O)[O-].C(C(=O)[O-])(=O)[O-] YIAXCZOLGQOSHC-UHFFFAOYSA-D 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 1
- LXASOGUHMSNFCR-UHFFFAOYSA-D [V+5].[V+5].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O Chemical compound [V+5].[V+5].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O LXASOGUHMSNFCR-UHFFFAOYSA-D 0.000 description 1
- GTDPSWPPOUPBNX-UHFFFAOYSA-N ac1mqpva Chemical compound CC12C(=O)OC(=O)C1(C)C1(C)C2(C)C(=O)OC1=O GTDPSWPPOUPBNX-UHFFFAOYSA-N 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 125000006159 dianhydride group Chemical group 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- ABLLXXOPOBEPIU-UHFFFAOYSA-N niobium vanadium Chemical class [V].[Nb] ABLLXXOPOBEPIU-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000011833 salt mixture Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
- C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups
-
- 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
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/20—Vanadium, niobium or tantalum
-
- 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
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/20—Vanadium, niobium or tantalum
- B01J23/22—Vanadium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US38580164A | 1964-07-28 | 1964-07-28 | |
| US46861865A | 1965-06-30 | 1965-06-30 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE1468824A1 DE1468824A1 (de) | 1969-04-17 |
| DE1468824B2 DE1468824B2 (de) | 1973-09-13 |
| DE1468824C3 true DE1468824C3 (enrdf_load_stackoverflow) | 1974-04-11 |
Family
ID=27011150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19651468824 Granted DE1468824B2 (de) | 1964-07-28 | 1965-07-27 | Verfahren zur Herstellung von aroma tischen Saureanhydnden durch Gasphasen Oxydation |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1468824B2 (enrdf_load_stackoverflow) |
| GB (1) | GB1101810A (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3421301A1 (de) * | 1984-06-08 | 1985-12-12 | Hüls AG, 4370 Marl | Verfahren zur herstellung von pyromellitsaeuredianhydrid |
| DE4305817A1 (de) * | 1993-02-25 | 1994-09-01 | Consortium Elektrochem Ind | Verfahren zur Herstellung von Pyromellitsäuredianhydrid |
-
1965
- 1965-07-27 DE DE19651468824 patent/DE1468824B2/de active Granted
- 1965-07-28 GB GB3226765A patent/GB1101810A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1468824A1 (de) | 1969-04-17 |
| DE1468824B2 (de) | 1973-09-13 |
| GB1101810A (en) | 1968-01-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2038749C3 (enrdf_load_stackoverflow) | ||
| WO2001096270A2 (de) | Verfahren zur herstellung von acrolein oder acrylsäure oder deren gemisch aus propan | |
| EP0194541B1 (de) | Heteropolysäure H8PMo10VO39, deren Anhydrid PMo10VO35 und ihre Verwendung | |
| DE2441109A1 (de) | Verfahren zur katalytischen oxydation von tert.-butylalkohol in der dampfphase | |
| EP0004591B1 (de) | Schalenkatalysatoren, Verfahren zu ihrer Herstellung und ihre Verwendung für die Bereitung von Anthrachinonen | |
| DE2413206A1 (de) | Verfahren zur herstellung von acrylsaeure und hierfuer geeignete katalysatormasse | |
| US3987063A (en) | Process for the production of maleic anhydride from butane | |
| EP1654211B1 (de) | Silber, vanadium und ein promotormetall enthaltendes multimetalloxid und dessen verwendung | |
| DE2529537C3 (de) | Verfahren zur Herstellung von Metharcrylsäure durch katalytische Gasphasenoxidation von Methacrolein | |
| DE1290136B (de) | Verfahren zur Herstellung von Vinylchlorid | |
| DE2400012C3 (enrdf_load_stackoverflow) | ||
| DE2239801C3 (de) | Verfahren zur Herstellung von Katalysatoren | |
| DE1930880A1 (de) | Verfahren zur Herstellung von Nitrilen aromatischer Dicarbonsaeuren,insbesondere von Iso- und Terephtalsaeure | |
| DE1468824C3 (enrdf_load_stackoverflow) | ||
| DE2449387B2 (de) | Verfahren zur herstellung eines oxydationskatalysators und dessen verwendung | |
| US3576825A (en) | Oxidation of tetraalkyl benzenes to pyromellitic dianhydride using a non-fused niobium vanadate catalyst | |
| DE2264529C3 (de) | Verfahren zur Herstellung von Butadien durch oxydative Dehydrierung von Butenen | |
| DE3106541C2 (enrdf_load_stackoverflow) | ||
| DE2447783C2 (de) | Ammoxidationsverfahren | |
| DE2434926C2 (de) | Verfahren zur Herstellung von Methacrolein | |
| DE2203439B2 (de) | Verfahren zur Herstellung von Acrylnitril aus Propylen | |
| US4528280A (en) | Process for preparing phosphorus-vanadium mixed oxide catalysts | |
| US4515973A (en) | Process for producing maleic anhydride | |
| DE2128753C3 (enrdf_load_stackoverflow) | ||
| DE2129790A1 (de) | Katalysatorzusammensetzung fuer die Oxydation von o-Xylol zu Phthalsaeureanhydrid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) |