GB906859A - Process of refining benzene - Google Patents

Process of refining benzene

Info

Publication number
GB906859A
GB906859A GB1126761A GB1126761A GB906859A GB 906859 A GB906859 A GB 906859A GB 1126761 A GB1126761 A GB 1126761A GB 1126761 A GB1126761 A GB 1126761A GB 906859 A GB906859 A GB 906859A
Authority
GB
United Kingdom
Prior art keywords
aldehyde
benzene
series
acid
washing steps
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
GB1126761A
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid 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 American Cyanamid Co filed Critical American Cyanamid Co
Publication of GB906859A publication Critical patent/GB906859A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/148—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound
    • C07C7/14875—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound with organic compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/005—Processes comprising at least two steps in series
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/148—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound
    • C07C7/17—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound with acids or sulfur oxides
    • C07C7/171—Sulfuric acid or oleum

Landscapes

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

Abstract

In the purification of benzene by a series of aqueous sulphuric acid washing steps followed by a series of neutralising washing steps and fractional distillation, the benzene, prior to the first neutralising step, is contacted with 0,15-2% by weight of a watersoluble aliphatic aldehyde and at least sufficient water to dissolve the aldehyde and agitating for sufficient time to react the aldehyde with all the thiophene sulphur present. Aqueous acetaldehyde may be used but commercial formalin is preferred and is added at the end of the second acid wash before the acid is separated.
GB1126761A 1960-04-22 1961-03-28 Process of refining benzene Expired GB906859A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2392060A 1960-04-22 1960-04-22

Publications (1)

Publication Number Publication Date
GB906859A true GB906859A (en) 1962-09-26

Family

ID=21817928

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1126761A Expired GB906859A (en) 1960-04-22 1961-03-28 Process of refining benzene

Country Status (1)

Country Link
GB (1) GB906859A (en)

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