GB915447A - Cracking promoters - Google Patents

Cracking promoters

Info

Publication number
GB915447A
GB915447A GB1925461A GB1925461A GB915447A GB 915447 A GB915447 A GB 915447A GB 1925461 A GB1925461 A GB 1925461A GB 1925461 A GB1925461 A GB 1925461A GB 915447 A GB915447 A GB 915447A
Authority
GB
United Kingdom
Prior art keywords
olefine
refractory
methylpentadiene
olefines
bromine
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
GB1925461A
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.)
Goodyear Tire and Rubber Co
Original Assignee
Goodyear Tire and Rubber 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 Goodyear Tire and Rubber Co filed Critical Goodyear Tire and Rubber Co
Publication of GB915447A publication Critical patent/GB915447A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C4/00—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms
    • C07C4/02—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by cracking a single hydrocarbon or a mixture of individually defined hydrocarbons or a normally gaseous hydrocarbon fraction
    • C07C4/06—Catalytic processes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C4/00—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms
    • C07C4/08—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by splitting-off an aliphatic or cycloaliphatic part from the molecule
    • C07C4/10—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by splitting-off an aliphatic or cycloaliphatic part from the molecule from acyclic hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G11/00—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C10G11/02—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils characterised by the catalyst used
    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2531/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • C07C2531/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The cracking of olefines, having a hydrocarbon group of at least two carbon atoms attached to at least one of the carbon atoms carrying the double bond, is effected in the presence of at least 0.5 mol per cent of the olefine of a mixture of (a) bromine or a source thereof and (b) at least one of the refractory olefines 2,3-dimethylbutene-2, 2-methylbutene-2, isobutylene, butene-2 and propylene, the mol ratio of (a) to (b) being 10:1 to 1:25. Suitable conditions are 300 DEG -1000 DEG C., 0.001-3 seconds and 10 mm. Hg. to 500 p.s.i.g., using 0.4-50 mol per cent of bromine and 0.1-50 mol per cent of refractory olefine and if desired 0.5-15 mols of a diluent per mol of olefine to be cracked, suitable diluents being steam, carbon dioxide, hydrogen, helium, neon, argon, methane, ethane and propane. Specified bromine precursors are hydrogen bromide, ethyl bromide, 1-bromobutane, 1-bromopropane, a -bromotoluene, bromobenzene, 1-bromochloromethane, 1,2-dibromoethane and ammonium bromide. The refractory olefine may also, if desired, be added in the form of an olefine which itself is cracked to the refractory olefine. Olefines are listed which may be used to produce; butadiene, isoprene, 2-ethylbutadiene, 2,3-dimethylbutadiene, 3-methylpentadiene-1,3, 2-methylpentadiene-1,3, 4-methylpentadiene-1,3 and piperylene.
GB1925461A 1960-09-29 1961-05-29 Cracking promoters Expired GB915447A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5920560A 1960-09-29 1960-09-29

Publications (1)

Publication Number Publication Date
GB915447A true GB915447A (en) 1963-01-09

Family

ID=22021474

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1925461A Expired GB915447A (en) 1960-09-29 1961-05-29 Cracking promoters

Country Status (2)

Country Link
DE (1) DE1291735B (en)
GB (1) GB915447A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3305598A (en) * 1962-07-27 1967-02-21 Monsanto Co Thermal polymerization in the presence of a halogen
US3315004A (en) * 1963-03-06 1967-04-18 Nat Lead Co Process for cracking propylene and isobutylene in the presence of hbr

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1164237A (en) * 1955-12-22 1958-10-07 Bataafsche Petroleum Hydrocarbon conversion process
FR1188507A (en) * 1956-07-30 1959-09-23 Bataafsche Petroleum Dehydrogenation process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3305598A (en) * 1962-07-27 1967-02-21 Monsanto Co Thermal polymerization in the presence of a halogen
US3315004A (en) * 1963-03-06 1967-04-18 Nat Lead Co Process for cracking propylene and isobutylene in the presence of hbr

Also Published As

Publication number Publication date
DE1291735B (en) 1969-04-03

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