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GB966986A - Oxidation of methylaromatics - Google Patents

Oxidation of methylaromatics

Info

Publication number
GB966986A
GB966986A GB12026/61A GB1202661A GB966986A GB 966986 A GB966986 A GB 966986A GB 12026/61 A GB12026/61 A GB 12026/61A GB 1202661 A GB1202661 A GB 1202661A GB 966986 A GB966986 A GB 966986A
Authority
GB
United Kingdom
Prior art keywords
oxidation
cumene
april
oxygen
methylaromatic
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
GB12026/61A
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.)
ExxonMobil Oil Corp
Original Assignee
Socony Mobil Oil Co Inc
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 Socony Mobil Oil Co Inc filed Critical Socony Mobil Oil Co Inc
Publication of GB966986A publication Critical patent/GB966986A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/27Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
    • C07C45/32Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
    • C07C45/33Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties
    • C07C45/34Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds
    • C07C45/36Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds in compounds containing six-membered aromatic rings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/34Devices for discharging articles or materials from conveyor 
    • B65G47/46Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points
    • B65G47/48Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points according to bodily destination marks on either articles or load-carriers
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/21Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
    • C07C51/255Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
    • C07C51/265Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical 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

966,986. Aromatic carboxylic acids. SOCONY MOBIL OIL CO. Inc. April 4, 1961 [April 4, 1960], No. 12026/61. Heading C2C. Aromatic carboxylic acids are produced by contacting with an oxygen-containing gas a mixture of a methyl aromatic compound (otherwise not alkyl substituted) and a promoter comprising the structure (R is C 1-4 -alkyl) in a 0À1-10:1 weight ratio at a temperature from 50‹C. to the b.p. of the methylaromatic compound, a flow rate of said gas per 100gm. total alkylaromatic compounds of 0À1-4 cu. ft./hr. oxygen and for 0À5-10 hrs. The preferred promoter is cumene (although diisopropyl benzene and p-cymene are also mentioned) and an oxidation catalyst such as cobalt naphthenate or iron phthalocyanine may also be used. Specified methylaromatic compounds are toluene, the xylenes, hemimellitene, pseudocumene, mesitylene, 1- and 2-methylnaphthalenes, dimethylnaphthalene, the toluic and xylic acids, methylpyridine, p-chlorotoluene, tolunitrile. In examples acetophenone is obtained as a by-product, presumably by oxidation of cumene.
GB12026/61A 1960-04-04 1961-04-04 Oxidation of methylaromatics Expired GB966986A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1950060A 1960-04-04 1960-04-04

Publications (1)

Publication Number Publication Date
GB966986A true GB966986A (en) 1964-08-19

Family

ID=30769044

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12026/61A Expired GB966986A (en) 1960-04-04 1961-04-04 Oxidation of methylaromatics

Country Status (6)

Country Link
US (1) US3256324A (en)
BE (1) BE602086A (en)
FR (1) FR1299531A (en)
GB (1) GB966986A (en)
IT (1) IT649554A (en)
NL (1) NL283165A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06157403A (en) * 1992-11-30 1994-06-03 Mitsubishi Petrochem Co Ltd Method for producing 2,6-naphthalenedicarboxylic acid

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2245528A (en) * 1938-10-18 1941-06-10 Du Pont Catalytic oxidation of alkyl substituted aromatic compounds
GB681455A (en) * 1949-04-05 1952-10-22 Bataafsche Petroleum Process for the production of aromatic dicarboxylic acids
BE535707A (en) * 1954-02-17
US2833816A (en) * 1954-05-03 1958-05-06 Mid Century Corp Preparation of aromatic polycarboxylic acids
GB787054A (en) * 1954-12-24 1957-11-27 Harold Newby The oxidation of para-dialkylbenzenes to terephthalic acid and other oxidation products
US3139452A (en) * 1957-02-25 1964-06-30 Gen Electric Oxidation of p-xylene to terephthalic acid

Also Published As

Publication number Publication date
FR1299531A (en) 1962-07-27
US3256324A (en) 1966-06-14
BE602086A (en)
NL283165A (en)
IT649554A (en)

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