GB1013762A - Production of olefins - Google Patents

Production of olefins

Info

Publication number
GB1013762A
GB1013762A GB4911763A GB4911763A GB1013762A GB 1013762 A GB1013762 A GB 1013762A GB 4911763 A GB4911763 A GB 4911763A GB 4911763 A GB4911763 A GB 4911763A GB 1013762 A GB1013762 A GB 1013762A
Authority
GB
United Kingdom
Prior art keywords
effected
bromination
olefins
paraffins
paraffin
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
GB4911763A
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.)
BP PLC
Original Assignee
BP PLC
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 BP PLC filed Critical BP PLC
Priority to GB4911763A priority Critical patent/GB1013762A/en
Priority to FR998261A priority patent/FR1422400A/en
Priority to BE657003D priority patent/BE657003A/xx
Publication of GB1013762A publication Critical patent/GB1013762A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
    • C07C1/26—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only halogen atoms as hetero-atoms
    • C07C1/30—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only halogen atoms as hetero-atoms by splitting-off the elements of hydrogen halide from a single molecule
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C11/00—Aliphatic unsaturated hydrocarbons
    • C07C11/02—Alkenes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/10—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2521/00—Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
    • C07C2521/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • C07C2521/08—Silica

Landscapes

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

Abstract

Olefins are produced from paraffins by brominating the paraffin, separating a monobrominated product and dehydrobrominating to the corresponding olefin. The feed may be a C4-C20 normal paraffin or a mixture preferably not differing in chain length by more than 4 carbons. Bromination is effected at 0-200 DEG C. in the presence of u.v. light or ionizing radiation, water being added at reaction temperatures below 60 DEG C. Conversion is maintained below 30%. The mono-brominated product is separated by distillation and unconverted paraffins recycled. Dehydrobromination is effected at 150-500 DEG C. in the vapour phase, e.g. over diatomaceous earth, silica-alumina, boron phosphate or alkali-treated silica. Bromine may be regenerated from the hydrogen bromide and reused; regeneration with oxygen and nitric oxide may be effected in situ in the bromination stage.
GB4911763A 1963-12-12 1963-12-12 Production of olefins Expired GB1013762A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB4911763A GB1013762A (en) 1963-12-12 1963-12-12 Production of olefins
FR998261A FR1422400A (en) 1963-12-12 1964-12-10 Process for the production of ethylenic hydrocarbons from alkanes and hydrocarbons obtained
BE657003D BE657003A (en) 1963-12-12 1964-12-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4911763A GB1013762A (en) 1963-12-12 1963-12-12 Production of olefins

Publications (1)

Publication Number Publication Date
GB1013762A true GB1013762A (en) 1965-12-22

Family

ID=10451204

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4911763A Expired GB1013762A (en) 1963-12-12 1963-12-12 Production of olefins

Country Status (2)

Country Link
BE (1) BE657003A (en)
GB (1) GB1013762A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1660419A1 (en) * 2003-08-19 2006-05-31 GRT, Inc. Method and apparatus for synthesizing olefins, alcohols, ethers, and aldehydes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1660419A1 (en) * 2003-08-19 2006-05-31 GRT, Inc. Method and apparatus for synthesizing olefins, alcohols, ethers, and aldehydes
EP1660419A4 (en) * 2003-08-19 2006-12-20 Grt Inc Method and apparatus for synthesizing olefins, alcohols, ethers, and aldehydes

Also Published As

Publication number Publication date
BE657003A (en) 1965-06-11

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