GB995149A - Production of styrene from ethylbenzene - Google Patents

Production of styrene from ethylbenzene

Info

Publication number
GB995149A
GB995149A GB15362/62A GB1536262A GB995149A GB 995149 A GB995149 A GB 995149A GB 15362/62 A GB15362/62 A GB 15362/62A GB 1536262 A GB1536262 A GB 1536262A GB 995149 A GB995149 A GB 995149A
Authority
GB
United Kingdom
Prior art keywords
ethylbenzene
styrene
feed
dehydrogenation
recycle
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
GB15362/62A
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.)
Total Petrochemicals and Refining USA Inc
Original Assignee
Cosden Oil and Chemical 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 Cosden Oil and Chemical Co filed Critical Cosden Oil and Chemical Co
Publication of GB995149A publication Critical patent/GB995149A/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
    • C07C15/40—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts substituted by unsaturated carbon radicals
    • C07C15/42—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts substituted by unsaturated carbon radicals monocyclic
    • C07C15/44—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts substituted by unsaturated carbon radicals monocyclic the hydrocarbon substituent containing a carbon-to-carbon double bond
    • C07C15/46—Styrene; Ring-alkylated styrenes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/04—Purification; Separation; Use of additives by distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Styrene is obtained by distilling a mixture containing ethylbenzene, xylenes and at least 0.3% by wt. of non-aromatic hydrocarbons boiling in the same range in a column or columns containing at least 150 stages at a reflux ratio of at least 40: 1 to obtain an overhead distillate containing ethylbenzene and non-aromatic hydrocarbons which is dehydrogenated and styrene recovered. The distillation is effected as described in U.S.A. Specification 2,959,626. Unconverted ethylbenzene from the dehydrogenation is recycled and build up of non-aromatics is prevented by removing a bleed stream, by distillation of the recycle alone or together with the ethylbenzene distillate feed or by subjecting all or part of the recycle, together with the ethylbenzene distillate feed if desired, to a solvent extraction process. The feed to the process preferably contains less than 5% by weight of non-aromatics and the combined fresh and recycle feed to the dehydrogenation less than 20%. Dehydrogenation is effected conventionally e.g. using an alkali promoted iron oxide catalyst and styrene is recovered by distillation under reduced pressure.
GB15362/62A 1961-04-21 1962-04-19 Production of styrene from ethylbenzene Expired GB995149A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US104654A US3209044A (en) 1961-04-21 1961-04-21 C8 aromatics processing

Publications (1)

Publication Number Publication Date
GB995149A true GB995149A (en) 1965-06-16

Family

ID=22301642

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15362/62A Expired GB995149A (en) 1961-04-21 1962-04-19 Production of styrene from ethylbenzene

Country Status (3)

Country Link
US (1) US3209044A (en)
DE (1) DE1443563A1 (en)
GB (1) GB995149A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3398063A (en) * 1966-11-22 1968-08-20 Universal Oil Prod Co Separation of ethylbenzene and styrene by low pressure, high temperature distillation
US3408263A (en) * 1966-11-22 1968-10-29 Universal Oil Prod Co Single column distillation of mixture of aromatics containing styrene
US3408266A (en) * 1966-11-22 1968-10-29 Universal Oil Prod Co Sub-atmospheric distillation of a benzene, toluene, ethylbenzene styrene mixture in a single column
US3408265A (en) * 1966-11-22 1968-10-29 Universal Oil Prod Co Recovery of styrene from ethyl benzene by a single column distillation with styrene vapor side draw
US3408264A (en) * 1966-11-22 1968-10-29 Universal Oil Prod Co Subatmospheric distillation of a benzene, toluene, ethyl benzene, styrene mixture ina single column with a cut-back oil
US3515647A (en) * 1968-12-06 1970-06-02 Universal Oil Prod Co Method for distilling styrene and subjecting bottoms to thin film evaporation
US3715408A (en) * 1970-01-30 1973-02-06 Cosden Oil & Chem Co Separation of diethylbenzene isomers by distillation and dehydrogenation
US3904484A (en) * 1972-09-07 1975-09-09 Badger Co Ethylbenzene-styrene separation
BE875237R (en) * 1978-07-18 1979-07-16 Cosden Technology PROCESS FOR INHIBITING THE POLYMERIZATION OF EASILY POLYMERIZABLE VINYLAROMATIC COMPOUNDS
US4252615A (en) * 1978-07-18 1981-02-24 Cosden Technology, Inc. Polymerization inhibitor for vinyl aromatic compounds
AU2606797A (en) * 1996-09-26 1998-04-17 Yield Improvement Engineering, Inc. Distillation of vinylaromatic monomer
CN109847396A (en) * 2018-12-28 2019-06-07 广东新华粤华德科技有限公司 A kind of device for hydrocarbon mixture extracting, rectifying and separating phenylethylene

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2064571A (en) * 1934-09-14 1936-12-15 Us Rubber Co Manufacture of styrol
US2282231A (en) * 1941-04-19 1942-05-05 Universal Oil Prod Co Separation of aromatic hydrocarbons
US2404104A (en) * 1942-12-11 1946-07-16 Standard Oil Dev Co Method of producing ethyl benzene
US2467152A (en) * 1944-11-23 1949-04-12 Standard Oil Dev Co Distillation of ethyl benzene from styrene
GB603497A (en) * 1945-10-22 1948-06-17 Distillers Co Yeast Ltd Improvements in or relating to the concentration of ethylbenzene
US2447479A (en) * 1945-10-22 1948-08-17 Distillers Co Yeast Ltd Separation of ethyl benzene from xylenes
GB646116A (en) * 1948-08-13 1950-11-15 Gordon Howard Foxon Improvements in and relating to a process for the purification of xylenes by distillaion
US2959626A (en) * 1957-07-15 1960-11-08 Cosden Petroleum Corp Process for the production of styrenegrade ethyl benzene

Also Published As

Publication number Publication date
US3209044A (en) 1965-09-28
DE1443563A1 (en) 1969-02-13

Similar Documents

Publication Publication Date Title
GB995149A (en) Production of styrene from ethylbenzene
ES305223A1 (en) High purity alkadienes by extractive distillation
ES398777A1 (en) Process for the recovery of isoprene from mixtures containing the same
US3342891A (en) Removal of vinylacetylenes from alkadienes
GB948180A (en) Process for the separation of an organic mixture containing hydrocarbons by means of extractive distillation
ES343385A1 (en) Process for recovery of glycidol from alcohol by azeotropic distillation with a hydrocarbon
US3953300A (en) Process for separating a high purity vinyl aromatic hydrocarbon from hydrocarbon mixtures containing the same
DE2748748A1 (en) METHOD FOR REDUCING THE ALPHA ACETYLENE CONTENT OF A HYDROCARBON FRACTION
US3038016A (en) Isoprene separation
FR2149715A5 (en) Extractive distn solvent recovery - from raffinate by distn while still in vapour state
GB1283180A (en) A method of obtaining high-purity aromatics from hydrocarbon mixtures which in addition to said aromatics contain non-aromatics
US2435443A (en) Separation of gem cyclic hydrocarbons from nongem cyclic hydrocarbons by selective dehydrogenation
ES381946A1 (en) Process for the extraction of aromatic hydrocarbons
GB1092629A (en) Separation of acetone from organic mixtures
US2493567A (en) Preparation in a condition of purity of hydrocarbons from mixtures containing them
DE2332980A1 (en) PURIFICATION OF PROPYLENE OXYDE BY DISTILLATION
GB959744A (en) Process for the combined production of butadiene and isoprene
GB719911A (en) Purifying acrylonitrile by extractive distillation
ES421209A1 (en) Process for separating high purity aromatic hydrocarbons from mixtures containing them
GB1492266A (en) Process for the recovery of styrene and substituted derivatives thereof
GB762974A (en) Dehydrating alcohols by extractive distillation
GB736856A (en) Improvements in and relating to the separation of hydrocarbons
GB1274380A (en) Process for the separation of hydrocarbon mixtures by extractive distillation
ES359257A1 (en) Continuous Process for the Preparation of p-Xylene.
GB1291029A (en) Separation of aromatics from hydrocarbon mixtures containing aromatics