ES472474A1 - Procedimiento para preparar un catalizador para la obtencionde acido acrilico y acido metacrilico. - Google Patents

Procedimiento para preparar un catalizador para la obtencionde acido acrilico y acido metacrilico.

Info

Publication number
ES472474A1
ES472474A1 ES472474A ES472474A ES472474A1 ES 472474 A1 ES472474 A1 ES 472474A1 ES 472474 A ES472474 A ES 472474A ES 472474 A ES472474 A ES 472474A ES 472474 A1 ES472474 A1 ES 472474A1
Authority
ES
Spain
Prior art keywords
catalyst
preparation
unsaturated
aldehydes
acids
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
ES472474A
Other languages
English (en)
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.)
Standard Oil Co
Original Assignee
Standard Oil Co
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
Priority claimed from US05/733,735 external-priority patent/US4085065A/en
Priority claimed from US05/733,738 external-priority patent/US4075124A/en
Priority claimed from US05/733,737 external-priority patent/US4075123A/en
Application filed by Standard Oil Co filed Critical Standard Oil Co
Publication of ES472474A1 publication Critical patent/ES472474A1/es
Expired 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
    • 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
    • B01J23/88—Molybdenum
    • B01J23/887—Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/8873—Zinc, cadmium or mercury
    • 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
    • B01J23/28—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
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • 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
    • B01J23/88—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
    • B01J23/70—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
    • B01J23/88—Molybdenum
    • B01J23/887—Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/8871—Rare earth metals or actinides
    • 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
    • B01J23/88—Molybdenum
    • B01J23/887—Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/8872—Alkali or alkaline earth metals
    • 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
    • B01J23/88—Molybdenum
    • B01J23/887—Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/8876—Arsenic, antimony or bismuth
    • 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
    • B01J23/88—Molybdenum
    • B01J23/887—Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/8877—Vanadium, tantalum, niobium or polonium
    • 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
    • B01J23/889—Manganese, technetium or rhenium
    • B01J23/8898—Manganese, technetium or rhenium 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
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
    • B01J23/8933—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • 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
    • B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
    • B01J23/8933—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/8993—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with chromium, molybdenum or 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
    • 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
    • B01J27/188—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with chromium, molybdenum, tungsten or polonium
    • B01J27/19—Molybdenum
    • 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)

Abstract

Procedimiento para la preparación de ácido acrílico o ácido metacrílico mediante oxidación de acroleína o metacroleína respectivamente, con oxígeno molecular, en fase de vapor, a una temperatura de reacción de aproximadamente 200ºC a aproximadamente 500ºC, en presencia de un catalizador de óxido y, opcionalmente, en presencia de vapor de agua, la mejora que comprende utilizar como catalizador, un catalizador descrito por la fórmula XaYbMo12PcAsdOX en la que X es un elemento de las tierras raras o una mezcla de los mismos; Y es por lo menos uno de entre plata, talio, rodio, paladio, rutenio, platino, cadmio, aluminio, oro, cobre metal alcalino-térreo, cloro y NH4; en la que a es de 0,001 a 10; b es de O a 10; a es de 0,001 a 5; d es de 0,001 a 5; x es el número de oxígenos necesario para satisfacer los estados de valencia de los otros elementos presente.
ES472474A 1976-10-19 1978-08-10 Procedimiento para preparar un catalizador para la obtencionde acido acrilico y acido metacrilico. Expired ES472474A1 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US05/733,735 US4085065A (en) 1976-10-19 1976-10-19 Process for the preparation of unsaturated acids from unsaturated aldehydes
US05/733,738 US4075124A (en) 1976-10-19 1976-10-19 Process for the preparation of unsaturated acids from unsaturated aldehydes
US05/733,737 US4075123A (en) 1976-10-19 1976-10-19 Process for the preparation of unsaturated acids from unsaturated aldehydes

Publications (1)

Publication Number Publication Date
ES472474A1 true ES472474A1 (es) 1979-04-01

Family

ID=27419180

Family Applications (5)

Application Number Title Priority Date Filing Date
ES472476A Expired ES472476A1 (es) 1976-10-19 1978-08-10 Procedimiento para preparar un catalizador para la obtencionacido acrilico y acido metacrilico
ES472473A Expired ES472473A1 (es) 1976-10-19 1978-08-10 Un procedimiento mejorado para la obtencion de acido acrili-co y acido metacrilico.
ES472475A Expired ES472475A1 (es) 1976-10-19 1978-08-10 Procedimiento para preparar un catalizador para la obtencionde acido acrilico y acido metacrilico.
ES472474A Expired ES472474A1 (es) 1976-10-19 1978-08-10 Procedimiento para preparar un catalizador para la obtencionde acido acrilico y acido metacrilico.
ES472472A Expired ES472472A1 (es) 1976-10-19 1978-08-10 Un procedimiento mejorado para la obtencion de acido acrili-co y acido metacrilico.

Family Applications Before (3)

Application Number Title Priority Date Filing Date
ES472476A Expired ES472476A1 (es) 1976-10-19 1978-08-10 Procedimiento para preparar un catalizador para la obtencionacido acrilico y acido metacrilico
ES472473A Expired ES472473A1 (es) 1976-10-19 1978-08-10 Un procedimiento mejorado para la obtencion de acido acrili-co y acido metacrilico.
ES472475A Expired ES472475A1 (es) 1976-10-19 1978-08-10 Procedimiento para preparar un catalizador para la obtencionde acido acrilico y acido metacrilico.

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES472472A Expired ES472472A1 (es) 1976-10-19 1978-08-10 Un procedimiento mejorado para la obtencion de acido acrili-co y acido metacrilico.

Country Status (15)

Country Link
JP (1) JPS5351194A (es)
BG (2) BG40648A3 (es)
BR (1) BR7706924A (es)
CA (1) CA1099250A (es)
DD (1) DD133431A5 (es)
DE (2) DE2760323C2 (es)
ES (5) ES472476A1 (es)
FR (1) FR2371229A1 (es)
GB (1) GB1575334A (es)
IN (1) IN147123B (es)
IT (1) IT1088096B (es)
NL (1) NL7711377A (es)
NO (6) NO773568L (es)
PT (1) PT67146B (es)
RO (1) RO81263B (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5811416B2 (ja) * 1978-12-13 1983-03-02 日本化薬株式会社 メタクリル酸の製造法
FR2521565B1 (fr) * 1982-02-17 1985-07-05 Dior Sa Parfums Christian Melange pulverulent de constituants lipidiques et de constituants hydrophobes, procede pour le preparer, phases lamellaires lipidiques hydratees et procede de fabrication, compositions pharmaceutiques ou cosmetiques comportant des phases lamellaires lipidiques hydratees
JPH0791212B2 (ja) * 1988-07-11 1995-10-04 三菱レイヨン株式会社 メタクリル酸の製造法
US10882801B2 (en) * 2016-01-04 2021-01-05 Saudi Arabian Oil Company Methods for gas phase oxidative desulphurization of hydrocarbons using CuZnAl catalysts promoted with group VIB metal oxides

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5529061B2 (es) * 1973-08-16 1980-07-31

Also Published As

Publication number Publication date
RO81263A (ro) 1983-02-15
GB1575334A (en) 1980-09-17
NO783837L (no) 1978-04-20
BG40648A3 (en) 1986-01-15
ES472472A1 (es) 1979-04-01
NO773568L (no) 1978-04-20
NO783835L (no) 1978-04-20
FR2371229A1 (fr) 1978-06-16
DD133431A5 (de) 1979-01-03
FR2371229B1 (es) 1984-03-09
NO783836L (no) 1978-04-20
DE2760323C2 (es) 1989-07-20
BG40476A3 (en) 1986-12-15
PT67146B (en) 1979-03-19
DE2746135A1 (de) 1978-04-27
JPS5351194A (en) 1978-05-10
ES472475A1 (es) 1979-04-01
IT1088096B (it) 1985-06-04
CA1099250A (en) 1981-04-14
PT67146A (en) 1977-11-01
BR7706924A (pt) 1978-06-27
NO783834L (no) 1978-04-20
JPS6211618B2 (es) 1987-03-13
DE2746135C2 (de) 1987-02-26
RO81263B (ro) 1983-02-28
NO783833L (no) 1978-04-20
NL7711377A (nl) 1978-04-21
ES472476A1 (es) 1979-04-16
IN147123B (es) 1979-11-17
ES472473A1 (es) 1979-04-01

Similar Documents

Publication Publication Date Title
ES453887A1 (es) Un procedimiento de obtencion de acido acrilico o acido me- tacrilico.
GB1478828A (en) Catalytic process for the preparation of methacrylic and/or acrylic
JPS55124734A (en) Preparation of methacrylic acid
ES450761A1 (es) Mejoras introducidas en el procedimiento para preparar acidoacrilico y acido metacrilico.
ES472474A1 (es) Procedimiento para preparar un catalizador para la obtencionde acido acrilico y acido metacrilico.
JPS5498717A (en) Preparation of unsaturated carboxylic acid
JPS54103819A (en) Production of unsaturated carboxylic acid
JPS55122734A (en) Preparation of methacrylic acid and its catalyst
ES429309A1 (es) Procedimiento para preparar acidos carboxilicos insatura- dos.
JPS5531006A (en) Preparation of methacrylic acid
Barnard et al. The determination of some aliphatic alcohols and aldehydes by oxidation with acid potassium dichromate
JPS56123946A (en) Preparation of unsaturated carboxylic acid ester
JPS5473723A (en) Production of alpha,beta-unsaturated carboxylic ester
JPS55153741A (en) Improved preparation of carboxylic acid ester
JPS5949214B2 (ja) 不飽和カルボン酸またはそのエステルの製法
ES460221A1 (es) Un procedimiento mejorado para la preparacion de acido acri-lico o acido metacrilico.
ES442500A1 (es) Procedimiento para la preparacion de acidos acrilico o meta-crilico.
JPS54144311A (en) Preparation of unsaturated carboxylic acid
JPS5268122A (en) Preparation of unsaturated carboxylic acids
KR830009805A (ko) 비스머스-세륨-몰리브데이트 촉매 조성물
SU727617A1 (ru) Способ получени 3,3,5,5-тетратретбутил-4,4-дифенохинона
ES463326A1 (es) Un procedimiento mejorado para la obtencion de acido acrilico y acido metacrilico
SU789494A1 (ru) Способ получени акролеина или метилакролеина
Simington et al. The Catalytic Oxidation with Air of Ethyl, Isopropyl and n-Butyl Alcohols
JPS5624048A (en) Oxidizing catalyst composition of unsaturated aldehyde with excellent reproducibility

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19971103