GB920854A - Improvements in or relating to the oxidation of hydrocarbons - Google Patents

Improvements in or relating to the oxidation of hydrocarbons

Info

Publication number
GB920854A
GB920854A GB4243/61A GB424361A GB920854A GB 920854 A GB920854 A GB 920854A GB 4243/61 A GB4243/61 A GB 4243/61A GB 424361 A GB424361 A GB 424361A GB 920854 A GB920854 A GB 920854A
Authority
GB
United Kingdom
Prior art keywords
oxygen
catalyst
mixture
oxidation
hydrocarbons
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
GB4243/61A
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.)
Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
Original Assignee
Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
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 Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU filed Critical Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
Publication of GB920854A publication Critical patent/GB920854A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C57/00—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms
    • C07C57/02—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms with only carbon-to-carbon double bonds as unsaturation
    • C07C57/13—Dicarboxylic acids
    • C07C57/145—Maleic acid
    • 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
    • C07C51/215—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of saturated hydrocarbyl groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/54—Preparation of carboxylic acid anhydrides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D307/56—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D307/60—Two oxygen atoms, e.g. succinic anhydride

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)

Abstract

Maleic anhydride is made by contacting, at an elevated temperature, a gaseous mixture comprising one or more of the C4 hydrocarbons butene-1, butene-2 and butadiene and oxygen with an oxidation catalyst having the formula <FORM:0920854/IV(a)/1> wherein x is from 3 to 24, y is from 1 to 12, and z is from 0.1 to 1.0, the quantity of oxygen in the mixture being less than that necessary for complete oxidation of the said hydrocarbon in the mixture, i.e. the molar ratio of oxygen to C4 hydrocarbon being less than 6/1 , preferably in the range 3/1 to 1/10 . It is advantageous to work in the presence of a gaseous diluent, such as nitrogen, carbon dioxide or steam, the preferred source of oxygen being air. The reaction temperature may be between 250 DEG and 600 DEG C. and the contact time is generally in the range of 0.2 seconds. The catalyst may be employed in a fixed bed or a fluidized bed. The preparation of the catalyst is described in Specification 920,853.
GB4243/61A 1960-02-05 1961-02-03 Improvements in or relating to the oxidation of hydrocarbons Expired GB920854A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR817659 1960-02-05

Publications (1)

Publication Number Publication Date
GB920854A true GB920854A (en) 1963-03-13

Family

ID=8724788

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4243/61A Expired GB920854A (en) 1960-02-05 1961-02-03 Improvements in or relating to the oxidation of hydrocarbons

Country Status (3)

Country Link
BE (1) BE599153A (en)
CH (1) CH392492A (en)
GB (1) GB920854A (en)

Also Published As

Publication number Publication date
CH392492A (en) 1965-05-31
BE599153A (en) 1961-05-16

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