ES8307703A1 - Procedimiento para la preparacion de acido metacrilico. - Google Patents

Procedimiento para la preparacion de acido metacrilico.

Info

Publication number
ES8307703A1
ES8307703A1 ES517285A ES517285A ES8307703A1 ES 8307703 A1 ES8307703 A1 ES 8307703A1 ES 517285 A ES517285 A ES 517285A ES 517285 A ES517285 A ES 517285A ES 8307703 A1 ES8307703 A1 ES 8307703A1
Authority
ES
Spain
Prior art keywords
carrier
methacrylic acid
catalyst
production
optionally
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
ES517285A
Other languages
English (en)
Other versions
ES517285A0 (es
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.)
RUHM GmbH
Original Assignee
RUHM GmbH
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 RUHM GmbH filed Critical RUHM GmbH
Publication of ES8307703A1 publication Critical patent/ES8307703A1/es
Publication of ES517285A0 publication Critical patent/ES517285A0/es
Granted legal-status Critical Current

Links

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
    • 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
    • C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
    • C07C51/377—Preparation 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

PROCEDIMIENTO PARA LA PREPARACION DE ACIDO METACRILICO. SE EFECTUA UNA DESHIDRATACION OXIDATIVA DE ACIDO ISOBUTIRICO EN LA FASE VAPOR A TEMPERATURAS POR ENCIMA DE 300 C EN UN CATALIZADOR EN BASE A LOS ELEMENTOS MOLIBDENO, VANADIO, FOSFORO Y OXIGENO. SE EMPLEA UN CATALIZADOR OBTENIDO POR IMPREGNACION DE UN SOPORTE CON UNA POROSIDAD DE 10 A 80% Y UNA SUPERFICIE INTERIOR POR DEBAJO DE 1 QM/G CON UNA SOLUCION ACUOSA HOMOGENEA DE LOS COMPONENTES ACTIVOS DEL CATALIZADOR. EL CATALIZADOR CONTIENE PREDOMINANTEMENTE CARBURO DE SILICIO.
ES517285A 1981-11-13 1982-11-11 Procedimiento para la preparacion de acido metacrilico. Granted ES517285A0 (es)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
ES8307703A1 true ES8307703A1 (es) 1983-08-16
ES517285A0 ES517285A0 (es) 1983-08-16

Family

ID=6146304

Family Applications (1)

Application Number Title Priority Date Filing Date
ES517285A Granted ES517285A0 (es) 1981-11-13 1982-11-11 Procedimiento para la preparacion de acido metacrilico.

Country Status (5)

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

Families Citing this family (9)

* 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
DE3626256A1 (de) * 1986-08-02 1988-02-11 Roehm Gmbh Heteropolymolybdat-gemische und ihre verwendung als katalysatoren
DE3626255A1 (de) * 1986-08-02 1988-02-11 Roehm Gmbh Regenerativ-katalytische oxidehydrierung von isobuttersaeure oder deren estern
ES2023965B3 (es) * 1987-03-17 1992-02-16 Roehm Gmbh Estabilizacion de actividad y reactivado de catalizadores de heteropoliacidos
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
GB2228696B (en) * 1987-10-07 1991-09-04 Hitachi Metals Ltd Die casting cylinder
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

Also Published As

Publication number Publication date
CA1194014A (en) 1985-09-24
JPH0531533B2 (es) 1993-05-12
DE3145091A1 (de) 1983-05-19
EP0079491A1 (de) 1983-05-25
JPS5896040A (ja) 1983-06-07
ES517285A0 (es) 1983-08-16
EP0079491B1 (de) 1985-07-10
DE3264684D1 (en) 1985-08-14

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19971001