NL7608826A - Methacrylic acid prodn. - from oxidative dehydrogenation of isobutyric acid in the presence of a catalyst and carrier - Google Patents

Methacrylic acid prodn. - from oxidative dehydrogenation of isobutyric acid in the presence of a catalyst and carrier

Info

Publication number
NL7608826A
NL7608826A NL7608826A NL7608826A NL7608826A NL 7608826 A NL7608826 A NL 7608826A NL 7608826 A NL7608826 A NL 7608826A NL 7608826 A NL7608826 A NL 7608826A NL 7608826 A NL7608826 A NL 7608826A
Authority
NL
Netherlands
Prior art keywords
acid
isobutyric acid
isobutyric
carrier
catalyst
Prior art date
Application number
NL7608826A
Other languages
Dutch (nl)
Original Assignee
Mitsubishi Chem Ind
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 Mitsubishi Chem Ind filed Critical Mitsubishi Chem Ind
Priority to NL7608826A priority Critical patent/NL7608826A/en
Publication of NL7608826A publication Critical patent/NL7608826A/en

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
    • 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
    • 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)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Methacrylic acid is produced by subjecting isobutyric acid to oxidative dehydrogenation in a gaseous phase in the presence of a catalyst contg. heteropoly-acid of formula: H3+xMo12-x-yWyVxPO40, (where x is 0,1,2 or 3; and y is 0,1,2 or 3; anx x + y 5) and/or its reduced type, and a carrier contg. a relatively large amt. of silicic acid so that the water absorption is >=60% is employed. Examples of carriers contg. relatively large amt. of silicic acid are silica-gel, diatomaceous earth. The ratio of isobutyric acid to oxygen = 0.1-10, concentration of isobutyric acid = 0.1-10 vol. %, temp. is 200-450 degrees C and LHSV - 100-8000 hr-1. The isobutyric acid conversion rate is 56.0-60.2%, methacrylic acid selectivity rate is 70.0-65.0%.
NL7608826A 1976-08-09 1976-08-09 Methacrylic acid prodn. - from oxidative dehydrogenation of isobutyric acid in the presence of a catalyst and carrier NL7608826A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7608826A NL7608826A (en) 1976-08-09 1976-08-09 Methacrylic acid prodn. - from oxidative dehydrogenation of isobutyric acid in the presence of a catalyst and carrier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7608826A NL7608826A (en) 1976-08-09 1976-08-09 Methacrylic acid prodn. - from oxidative dehydrogenation of isobutyric acid in the presence of a catalyst and carrier

Publications (1)

Publication Number Publication Date
NL7608826A true NL7608826A (en) 1978-02-13

Family

ID=19826715

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7608826A NL7608826A (en) 1976-08-09 1976-08-09 Methacrylic acid prodn. - from oxidative dehydrogenation of isobutyric acid in the presence of a catalyst and carrier

Country Status (1)

Country Link
NL (1) NL7608826A (en)

Similar Documents

Publication Publication Date Title
US2383711A (en) Preparation of alkenals and alkenones
NO171668C (en) CATALYST AND PROCEDURE FOR ITS MANUFACTURING
KR860000234A (en) Oxidative Dehydrogenation with Ethanol Ethylene
BG49273A3 (en) Method for preparing acryl acid
DK48286A (en) PROCEDURE FOR THE PREPARATION OF ATHYLENE-EETAN MIXTURES
GB1529384A (en) Oxidation of propylene and isobutylene
JPS5223589A (en) Catalyst for producing alpha,beta-unsaturaded carboxylic acid
ES460492A1 (en) High yield, low byproduct alpha , beta -unsaturated aldehydes from olefins
FR2362108A1 (en) Methacrylic acid prodn. - from oxidative dehydrogenation of isobutyric acid in the presence of a catalyst and carrier
KR950702514A (en) Process for converting butadiene to styrene or ethylbenzene or both using catalysts containing molybdenum
ATE74109T1 (en) CATALYSTS TO SEPARATE OXYGEN FROM AIR BY ABSORPTION.
GB1453511A (en) Catalytic oxidation os saturated aliphatic hydrocarbons
NL7608826A (en) Methacrylic acid prodn. - from oxidative dehydrogenation of isobutyric acid in the presence of a catalyst and carrier
SE8105937L (en) OXYDEHYDROGENATION CATALYST
SE7711869L (en) PROCEDURE FOR THE PREPARATION OF TEREFTAL ACID
JPS5382720A (en) Preparation of unsaturated carboxylic acids and their esters
IE37214B1 (en) Controlled oxidation of ethylene
UST966008I4 (en) Oxidation of p-xylene to terephthalaldehyde
SE8107516L (en) OXYDEHYDROGENATION CATALYST
FR2348906A1 (en) Methacrylic acid, ester or nitrile prepn. - from propionic acid, esters or nitrile by alumina-catalysed reaction with methylal
ES455728A1 (en) Process for the manufacture of ethylene oxide
IT1058780B (en) Methacrylic acid, ester or nitrile prepn. - from propionic acid, esters or nitrile by alumina-catalysed reaction with methylal
NL7603417A (en) Methacrylic acid, ester or nitrile prepn. - from propionic acid, esters or nitrile by alumina-catalysed reaction with methylal
Bibby et al. SYNTHESIS OF C2H, BY PARTIAL OXIDATION OF CHA OVER TRANSITION METAL OXIDES WITH ALKALI–CHLORIDES
JPS53144534A (en) Production of styrene

Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
DNT Communications of changes of names of applicants whose applications have been laid open to public inspection

Free format text: MITSUBISHI KASEI CORPORATION

BV The patent application has lapsed