GB599733A - Improvements in or relating to the stabilisation of hydrocarbon materials - Google Patents

Improvements in or relating to the stabilisation of hydrocarbon materials

Info

Publication number
GB599733A
GB599733A GB119245A GB119245A GB599733A GB 599733 A GB599733 A GB 599733A GB 119245 A GB119245 A GB 119245A GB 119245 A GB119245 A GB 119245A GB 599733 A GB599733 A GB 599733A
Authority
GB
United Kingdom
Prior art keywords
isoprene
oxidant
per cent
methylene blue
chloride
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
GB119245A
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
Filing date
Publication date
Application filed by Standard Oil Development Co filed Critical Standard Oil Development Co
Publication of GB599733A publication Critical patent/GB599733A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00Purification; Separation; Use of additives
    • C07C7/20Use of additives, e.g. for stabilisation

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)

Abstract

Diolefins or predominantly diolefinic hydrocarbon materials are stabilized by dissolving therein a phenolic type anti-oxidant, and a promoter therefor comprising a compound having a standard oxidation-reduction potential of 1-0.7 to 0 volts. Formation of peroxides is inhibited and, when already present, the content is reduced. Butadiene, isoprene, cyclopentadiene, piperylenes and their homologues are referred to. Phenolic type anti-oxidants include phenols, alkylated phenols, polyhydroxy benzenes and hydroxy naphthalenes, for example cresols, catechol, hydroquinone, pyrogallol, naphthols and their alkyl derivatives. Promoters specified are methylene blue chloride, stannous chloride or acetate or other soluble stannous salt, mercurous and titanous chlorides, platinous, uranous, trivalent vanadium and pentavalent molybdenum salts, lower oxides of copper and iron, hydrogen sulphide and elementary sulphur. The amount of anti-oxidant is desirably about twice that theoretically required for reduction of peroxide present, and the amount of promoter should be at least 10 per cent by weight of the anti-oxidant. Comparative figures are given for the inhibition of the polymerization of isoprene, containing peroxide equivalent to 100 p.p.m. active oxygen, at 60 DEG C., using 0.22 per cent a -naphthol with and without methylene blue chloride (0.03 per cent), and for the reduction of tert.-butyl hydroperoxide and isoprene peroxide in aromatic hydrocarbon solution using tert.-butyl catechol and a -naphthol, with and without methylene blue chloride or stannous chloride.
GB119245A 1945-01-15 Improvements in or relating to the stabilisation of hydrocarbon materials Expired GB599733A (en)

Publications (1)

Publication Number Publication Date
GB599733A true GB599733A (en) 1948-03-19

Family

ID=1626708

Family Applications (1)

Application Number Title Priority Date Filing Date
GB119245A Expired GB599733A (en) 1945-01-15 Improvements in or relating to the stabilisation of hydrocarbon materials

Country Status (1)

Country Link
GB (1) GB599733A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3366702A (en) * 1965-05-03 1968-01-30 Marathon Oil Co Preparation of unsaturated hydrocarbons by pyrolysis, and related compositions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3366702A (en) * 1965-05-03 1968-01-30 Marathon Oil Co Preparation of unsaturated hydrocarbons by pyrolysis, and related compositions

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