GB589072A - An improved process for the production of ethyl benzene - Google Patents

An improved process for the production of ethyl benzene

Info

Publication number
GB589072A
GB589072A GB13754/42A GB1375442A GB589072A GB 589072 A GB589072 A GB 589072A GB 13754/42 A GB13754/42 A GB 13754/42A GB 1375442 A GB1375442 A GB 1375442A GB 589072 A GB589072 A GB 589072A
Authority
GB
United Kingdom
Prior art keywords
line
benzene
zone
ethyl
stage
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
GB13754/42A
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 Development Co
Original Assignee
Standard Oil Development 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
Application filed by Standard Oil Development Co filed Critical Standard Oil Development Co
Publication of GB589072A publication Critical patent/GB589072A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
    • C07C15/02—Monocyclic hydrocarbons
    • C07C15/067—C8H10 hydrocarbons
    • C07C15/073—Ethylbenzene
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/54—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition of unsaturated hydrocarbons to saturated hydrocarbons or to hydrocarbons containing a six-membered aromatic ring with no unsaturation outside the aromatic ring
    • C07C2/64—Addition to a carbon atom of a six-membered aromatic ring
    • C07C2/66—Catalytic processes
    • C07C2/68—Catalytic processes with halides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • C07C2527/06—Halogens; Compounds thereof
    • C07C2527/125—Compounds comprising a halogen and scandium, yttrium, aluminium, gallium, indium or thallium
    • C07C2527/126—Aluminium chloride

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

<PICT:0589072/IV/1> Mono-ethyl benzene is produced by reaction of benzene with ethylene in the presence of a Friedel-Crafts catalyst, poly-ethyl benzenes in the product being separated and reacted with additional benzene in a second stage to form further mono-ethyl benzene. A molar excess of about 25-100 per cent of benzene in the first stage and of about 50-100 per cent in the second stage is preferably used. Temperatures may be about 100-200 DEG , preferably 160-170 DEG F., in the first stage and 100-500 DEG , preferably 130-250 DEG F., in the second, pressures being sufficient to maintain the liquid phase. Aluminium, iron, and zinc chlorides are specified catalysts for both stages. Reaction zone 1 is fed with aluminium chloride by line 2, and with ethylene and benzene by lines 3 and 4 respectively, mixer 5, and jets or the like 6. The products pass by line 7 to distillation zone 8, part being recirculated if desired by line 9, and ethylene removed by means of separator 25 and line 26. Unreacted benzene is removed overhead and may be recycled to zone 1 by line 11. Ethyl benzene is removed by line 12. Poly-ethyl benzenes by line 13, and additional benzene by line 14 enter reaction zone 15 which is fed by line 16 with partially spent catalyst from zone 1 and, if desired, fresh catalyst by line 17. Reaction products pass to distillation zone 18 where benzene is separated and may be recycled to either reaction zone, and ethyl benzene is removed by line 20. Higher boiling products removed by line 21 may be recycled to zone 15. Alternatively, the entire reaction products may be passed to distillation zone 8 by line 22. Impure commercial benzene may be used in the process in which case it is introduced into zone 15 and subjected to a purification by means of the partially spent catalyst before being fed to zone 1.
GB13754/42A 1941-08-01 1942-09-30 An improved process for the production of ethyl benzene Expired GB589072A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US589072XA 1941-08-01 1941-08-01

Publications (1)

Publication Number Publication Date
GB589072A true GB589072A (en) 1947-06-11

Family

ID=22019654

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13754/42A Expired GB589072A (en) 1941-08-01 1942-09-30 An improved process for the production of ethyl benzene

Country Status (1)

Country Link
GB (1) GB589072A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050222A1 (en) * 1980-10-22 1982-04-28 BASF Aktiengesellschaft Process for the continuous preparation of ethylbenzene in the heterogeneous phase
EP0703202A1 (en) * 1990-04-17 1996-03-27 The Dow Chemical Company A process for producing ethylbenzene

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050222A1 (en) * 1980-10-22 1982-04-28 BASF Aktiengesellschaft Process for the continuous preparation of ethylbenzene in the heterogeneous phase
EP0703202A1 (en) * 1990-04-17 1996-03-27 The Dow Chemical Company A process for producing ethylbenzene

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