GB439056A - Improvements in the synthesis of phenol - Google Patents

Improvements in the synthesis of phenol

Info

Publication number
GB439056A
GB439056A GB15918/34A GB1591834A GB439056A GB 439056 A GB439056 A GB 439056A GB 15918/34 A GB15918/34 A GB 15918/34A GB 1591834 A GB1591834 A GB 1591834A GB 439056 A GB439056 A GB 439056A
Authority
GB
United Kingdom
Prior art keywords
benzene
sulphur dioxide
sulphur
phenol
liquid
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
GB15918/34A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB439056A publication Critical patent/GB439056A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/01—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis
    • C07C37/04—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis by substitution of SO3H groups or a derivative thereof

Landscapes

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

Abstract

In the preparation of phenol by monosulphonating benzene and hydrolyzing the product with alkali, the sulphonated benzene is obtained by reacting benzene with approximately the theoretical amount of sulphur trioxide in the presence of liquid sulphur dioxide as a diluent. The benzene and sulphur trioxide are each dissolved in the sulphur dioxide and the solutions then run at approximately equal rates into a relatively large amount of liquid sulphur dioxide at atmospheric or higher pressure and at a temperature below the boiling point of sulphur dioxide under the pressure employed. Examples are given. Specifications 338,482, 338,483, 338,484, [all in Class 91], and 346,945 are referred to.
GB15918/34A 1933-05-26 1934-05-28 Improvements in the synthesis of phenol Expired GB439056A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US439056XA 1933-05-26 1933-05-26

Publications (1)

Publication Number Publication Date
GB439056A true GB439056A (en) 1935-11-28

Family

ID=21929510

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15918/34A Expired GB439056A (en) 1933-05-26 1934-05-28 Improvements in the synthesis of phenol

Country Status (1)

Country Link
GB (1) GB439056A (en)

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