CA1055468A - Catalyst compositions especially useful for preparation of unsaturated acids - Google Patents
Catalyst compositions especially useful for preparation of unsaturated acidsInfo
- Publication number
- CA1055468A CA1055468A CA215,156A CA215156A CA1055468A CA 1055468 A CA1055468 A CA 1055468A CA 215156 A CA215156 A CA 215156A CA 1055468 A CA1055468 A CA 1055468A
- Authority
- CA
- Canada
- Prior art keywords
- catalyst
- catalysts
- mixture
- catalyst composition
- acrolein
- 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
- 239000003054 catalyst Substances 0.000 title claims abstract description 58
- 239000000203 mixture Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000002253 acid Substances 0.000 title abstract description 5
- 150000007513 acids Chemical class 0.000 title abstract description 3
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 claims abstract description 26
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052802 copper Inorganic materials 0.000 claims abstract description 10
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 claims abstract description 9
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052776 Thorium Inorganic materials 0.000 claims abstract description 9
- 229910052770 Uranium Inorganic materials 0.000 claims abstract description 9
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 9
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 9
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 9
- 239000011733 molybdenum Substances 0.000 claims abstract description 9
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 229910052718 tin Inorganic materials 0.000 claims abstract description 8
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims abstract description 6
- STNJBCKSHOAVAJ-UHFFFAOYSA-N Methacrolein Chemical compound CC(=C)C=O STNJBCKSHOAVAJ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 5
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 5
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 5
- 150000001342 alkaline earth metals Chemical class 0.000 claims abstract description 5
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 5
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 5
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 5
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 5
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 4
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 claims abstract 4
- 238000000034 method Methods 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 5
- 229910001882 dioxygen Inorganic materials 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229910052747 lanthanoid Inorganic materials 0.000 claims description 4
- 150000002602 lanthanoids Chemical class 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052721 tungsten Inorganic materials 0.000 abstract description 5
- 239000010937 tungsten Substances 0.000 abstract description 5
- 229910052720 vanadium Inorganic materials 0.000 abstract description 4
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000002002 slurry Substances 0.000 description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 150000001299 aldehydes Chemical class 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- DNYWZCXLKNTFFI-UHFFFAOYSA-N uranium Chemical compound [U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U] DNYWZCXLKNTFFI-UHFFFAOYSA-N 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- YZYDPPZYDIRSJT-UHFFFAOYSA-K boron phosphate Chemical compound [B+3].[O-]P([O-])([O-])=O YZYDPPZYDIRSJT-UHFFFAOYSA-K 0.000 description 1
- 229910000149 boron phosphate Inorganic materials 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000006709 oxidative esterification reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/888—Tungsten
- B01J23/8885—Tungsten containing also molybdenum
-
- 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
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- 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
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/30—Tungsten
-
- 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
- B01J23/32—Manganese, technetium or rhenium
- B01J23/34—Manganese
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/186—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J27/195—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with vanadium, niobium or tantalum
- B01J27/198—Vanadium
- B01J27/199—Vanadium with chromium, molybdenum, tungsten or polonium
-
- 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
- C07C51/25—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring
- C07C51/252—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring of propene, butenes, acrolein or methacrolein
-
- 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
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Furan Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US42826773A | 1973-12-26 | 1973-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1055468A true CA1055468A (en) | 1979-05-29 |
Family
ID=23698187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA215,156A Expired CA1055468A (en) | 1973-12-26 | 1974-12-03 | Catalyst compositions especially useful for preparation of unsaturated acids |
Country Status (18)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4301030A (en) | 1980-08-05 | 1981-11-17 | The Standard Oil Company | Bi-containing methacrolein oxidation catalysts |
| US4301031A (en) | 1980-08-05 | 1981-11-17 | The Standard Oil Company | Methacrolein oxidation catalysts |
| JP2702864B2 (ja) * | 1993-03-12 | 1998-01-26 | 株式会社日本触媒 | 触媒の再生方法 |
| DE10137534A1 (de) | 2001-08-01 | 2003-02-13 | Basf Ag | Verfahren zur Herstellung von Maleinsäureanhydrid |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1045704B (it) * | 1973-11-28 | 1980-06-10 | Sir Soc Italiana Resine Spa | Perfezionamenti nel procedimento di preparazione dell acido acrilico |
-
1974
- 1974-12-03 CA CA215,156A patent/CA1055468A/en not_active Expired
- 1974-12-10 NO NO744446A patent/NO142242C/no unknown
- 1974-12-13 DE DE19742459092 patent/DE2459092A1/de not_active Withdrawn
- 1974-12-17 GB GB54373/74A patent/GB1482686A/en not_active Expired
- 1974-12-19 BR BR10607/74A patent/BR7410607D0/pt unknown
- 1974-12-20 IT IT30905/74A patent/IT1027951B/it active
- 1974-12-20 ES ES433229A patent/ES433229A1/es not_active Expired
- 1974-12-20 DD DD183277A patent/DD115652A5/xx unknown
- 1974-12-21 IN IN2825/CAL/74A patent/IN143815B/en unknown
- 1974-12-23 AT AT1028474A patent/AT343604B/de not_active IP Right Cessation
- 1974-12-23 NL NL7416801A patent/NL7416801A/xx not_active Application Discontinuation
- 1974-12-24 CH CH1730374A patent/CH600947A5/xx not_active IP Right Cessation
- 1974-12-24 FR FR7442689A patent/FR2255953B1/fr not_active Expired
- 1974-12-25 JP JP50004149A patent/JPS5097592A/ja active Pending
- 1974-12-26 RO RO7480950A patent/RO66354A/ro unknown
- 1974-12-26 BG BG028559A patent/BG31643A3/xx unknown
- 1974-12-27 CS CS749041A patent/CS212754B2/cs unknown
- 1974-12-27 BE BE151936A patent/BE823871A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2255953A1 (enrdf_load_stackoverflow) | 1975-07-25 |
| AT343604B (de) | 1978-06-12 |
| NO744446L (enrdf_load_stackoverflow) | 1975-07-21 |
| NO142242C (no) | 1980-07-23 |
| DE2459092A1 (de) | 1975-07-10 |
| NL7416801A (nl) | 1975-06-30 |
| RO66354A (fr) | 1979-03-15 |
| IT1027951B (it) | 1978-12-20 |
| ES433229A1 (es) | 1977-11-01 |
| BE823871A (fr) | 1975-06-27 |
| JPS5097592A (enrdf_load_stackoverflow) | 1975-08-02 |
| DD115652A5 (enrdf_load_stackoverflow) | 1975-10-12 |
| BG31643A3 (en) | 1982-02-15 |
| NO142242B (no) | 1980-04-14 |
| BR7410607D0 (pt) | 1975-09-02 |
| CH600947A5 (enrdf_load_stackoverflow) | 1978-06-30 |
| ATA1028474A (de) | 1977-10-15 |
| FR2255953B1 (enrdf_load_stackoverflow) | 1981-12-24 |
| CS212754B2 (en) | 1982-03-26 |
| GB1482686A (en) | 1977-08-10 |
| IN143815B (enrdf_load_stackoverflow) | 1978-02-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1090318A (en) | Process for producing unsaturated aliphatic acids and catalysts therefor | |
| US3875220A (en) | Process for the preparation of methacrylic acid from methacrolein | |
| US3956181A (en) | Oxidation catalyst | |
| US4051180A (en) | Preparation of acrylic acid and methacrylic acid | |
| US4017423A (en) | Process for the preparation of unsaturated acids from unsaturated aldehydes | |
| EP0027351B1 (en) | Oxidation catalysts and process for the preparation of methacrolein by vapour phase oxidation | |
| US4157987A (en) | Catalyst compositions especially useful for preparation of unsaturated acids | |
| US3893951A (en) | Catalysts for oxidation reactions | |
| US4101448A (en) | Catalyst compositions especially useful for preparation of unsaturated acids | |
| US4138366A (en) | Process for producing unsaturated aliphatic acids and catalysts therefore | |
| US4306090A (en) | Catalyst compositions and their use for the preparation of methacrolein | |
| US4359407A (en) | Catalyst compositions especially useful for preparation of unsaturated acids | |
| US4174354A (en) | Oxidative dehydrogenation using chromium-containing catalysts | |
| US4358608A (en) | Process for producing unsaturated aliphatic acids | |
| KR840000985B1 (ko) | 비스무스―함유 메타크롤레인 산화용 촉매조성물 | |
| JPS5810134B2 (ja) | 不飽和酸の製造に特に有用な触媒組成物 | |
| CA1055468A (en) | Catalyst compositions especially useful for preparation of unsaturated acids | |
| US4083805A (en) | Preparation of methacrylic acid from methacrolein | |
| CA1108592A (en) | Process for producing unsaturated aliphatic acids and catalysts therefor | |
| US4223161A (en) | Process for producing unsaturated aliphatic acids | |
| US3993680A (en) | Ammoxidation using chromium-containing catalysts | |
| US4256914A (en) | Catalytic oxidation of methacrolein | |
| US4378309A (en) | Catalyst compositions for the preparation of unsaturated acids | |
| US4166190A (en) | Process for the preparation of methacrylic acid from methacrolein | |
| KR20030036171A (ko) | 저 올레핀을 불포화 알데히드로 산화하기 위한 촉매, 그제조방법 및 그 이용 |