CA1194014A - Process for preparing methacrylic acid - Google Patents

Process for preparing methacrylic acid

Info

Publication number
CA1194014A
CA1194014A CA000415415A CA415415A CA1194014A CA 1194014 A CA1194014 A CA 1194014A CA 000415415 A CA000415415 A CA 000415415A CA 415415 A CA415415 A CA 415415A CA 1194014 A CA1194014 A CA 1194014A
Authority
CA
Canada
Prior art keywords
catalyst
supported catalyst
isobutyric acid
gaseous mixture
methacrylic acid
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
Application number
CA000415415A
Other languages
English (en)
French (fr)
Inventor
Wilhelm Gruber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Roehm GmbH Darmstadt
Original Assignee
Roehm GmbH Chemische Fabrik
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Roehm GmbH Chemische Fabrik filed Critical Roehm GmbH Chemische Fabrik
Application granted granted Critical
Publication of CA1194014A publication Critical patent/CA1194014A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/14Phosphorus; Compounds thereof
    • B01J27/186Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J27/195Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with vanadium, niobium or tantalum
    • B01J27/198Vanadium
    • B01J27/199Vanadium with chromium, molybdenum, tungsten or polonium
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/347Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
    • C07C51/377Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (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)
CA000415415A 1981-11-13 1982-11-12 Process for preparing methacrylic acid Expired CA1194014A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3145091.1 1981-11-13
DE19813145091 DE3145091A1 (de) 1981-11-13 1981-11-13 Verfahren zur herstellung von methacrylsaeure

Publications (1)

Publication Number Publication Date
CA1194014A true CA1194014A (en) 1985-09-24

Family

ID=6146304

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000415415A Expired CA1194014A (en) 1981-11-13 1982-11-12 Process for preparing methacrylic acid

Country Status (5)

Country Link
EP (1) EP0079491B1 (enrdf_load_stackoverflow)
JP (1) JPS5896040A (enrdf_load_stackoverflow)
CA (1) CA1194014A (enrdf_load_stackoverflow)
DE (2) DE3145091A1 (enrdf_load_stackoverflow)
ES (1) ES517285A0 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5070061A (en) * 1986-08-02 1991-12-03 Rohm Gmbh Heteropolymolybdate catalysts and method for oxydehydrogenation
US5132449A (en) * 1987-03-17 1992-07-21 Rohm Gmbh Method for the catalytic vapor phase oxydehydrogenation of isobutyric acid

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3248600A1 (de) * 1982-12-30 1984-07-12 Röhm GmbH, 6100 Darmstadt Verwendung von mo-v-cu-p-katalysatoren zur oxydehydrierung von isobuttersaeure oder deren estern
DE3626255A1 (de) * 1986-08-02 1988-02-11 Roehm Gmbh Regenerativ-katalytische oxidehydrierung von isobuttersaeure oder deren estern
DE3710784A1 (de) * 1987-03-31 1988-10-13 Roehm Gmbh Heteropolysaeure-oxidations-katalysatoren mit verbessertem langzeit-aktivitaets-verhalten
DE3732106A1 (de) * 1987-09-24 1989-04-06 Roehm Gmbh Verfahren zur oxydehydrierung von isobuttersaeure
WO1989003263A1 (en) * 1987-10-07 1989-04-20 Hitachi Metals, Ltd. Cylinder for die casting
DE4113423A1 (de) * 1991-04-25 1992-10-29 Roehm Gmbh Mit makroporen durchsetzter oxidationskatalysator
US8178718B2 (en) * 2007-02-05 2012-05-15 Saudi Basic Industries Corporation Catalyst for oxidation of saturated and unsaturated aldehydes to unsaturated carboxylic acid, method of making and method of using thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52138499A (en) * 1976-05-17 1977-11-18 Mitsubishi Chem Ind Ltd Production of heteropolyacid
FR2362108A1 (fr) * 1976-08-18 1978-03-17 Mitsubishi Chem Ind Perfectionnements a la preparation de l'acide methacrylique
DE2849715A1 (de) * 1978-11-16 1980-05-29 Hoechst Ag Traegerkatalysator und verfahren zu seiner herstellung
JPS5637050A (en) * 1979-09-04 1981-04-10 Ube Ind Ltd Preparation of catalyst for preparing unsaturated acid
DE3161102D1 (en) * 1980-08-28 1983-11-10 Roehm Gmbh Process for the oxidizing dehydrogenation of isobutyric acid to methacrylic acid
US4307247A (en) * 1980-09-05 1981-12-22 Standard Oil Company Process for the production of unsaturated acids and esters
US4314075A (en) * 1980-09-05 1982-02-02 The Standard Oil Company Process for the production of olefinic acids and esters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5070061A (en) * 1986-08-02 1991-12-03 Rohm Gmbh Heteropolymolybdate catalysts and method for oxydehydrogenation
US5132449A (en) * 1987-03-17 1992-07-21 Rohm Gmbh Method for the catalytic vapor phase oxydehydrogenation of isobutyric acid

Also Published As

Publication number Publication date
EP0079491A1 (de) 1983-05-25
ES8307703A1 (es) 1983-08-16
JPS5896040A (ja) 1983-06-07
EP0079491B1 (de) 1985-07-10
DE3264684D1 (en) 1985-08-14
DE3145091A1 (de) 1983-05-19
ES517285A0 (es) 1983-08-16
JPH0531533B2 (enrdf_load_stackoverflow) 1993-05-12

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Legal Events

Date Code Title Description
MKEC Expiry (correction)
MKEX Expiry