GB883085A - Improvements in or relating to processes for the production of phenol - Google Patents

Improvements in or relating to processes for the production of phenol

Info

Publication number
GB883085A
GB883085A GB21927/60A GB2192760A GB883085A GB 883085 A GB883085 A GB 883085A GB 21927/60 A GB21927/60 A GB 21927/60A GB 2192760 A GB2192760 A GB 2192760A GB 883085 A GB883085 A GB 883085A
Authority
GB
United Kingdom
Prior art keywords
column
phenol
distillation
residue
sump
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
GB21927/60A
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.)
Ineos Phenol GmbH
Original Assignee
Phenolchemie GmbH and Co KG
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 Phenolchemie GmbH and Co KG filed Critical Phenolchemie GmbH and Co KG
Publication of GB883085A publication Critical patent/GB883085A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C39/00—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring
    • C07C39/02—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring monocyclic with no unsaturation outside the aromatic ring
    • C07C39/04—Phenol
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
    • C07C15/40—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts substituted by unsaturated carbon radicals
    • C07C15/42—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts substituted by unsaturated carbon radicals monocyclic
    • C07C15/44—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts substituted by unsaturated carbon radicals monocyclic the hydrocarbon substituent containing a carbon-to-carbon double bond
    • 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
    • C07C37/08—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by decomposition of hydroperoxides, e.g. cumene hydroperoxide
    • 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
    • C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
    • C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
    • C07C37/74—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C407/00—Preparation of peroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
    • C07C45/53—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition of hydroperoxides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78—Separation; Purification; Stabilisation; Use of additives
    • C07C45/81—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
    • C07C45/82—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/04—Saturated compounds containing keto groups bound to acyclic carbon atoms
    • C07C49/08—Acetone

Landscapes

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

Abstract

Pure phenol is obtained from reaction mixtures produced by the acid cleavage of isopropylbenzene hydroperoxide in which after the elimination of the acid catalyst and the distillation of the acetone, the hydrocarbons contained in the mixture are separated from phenol and the constituents having higher boiling points by azeotropic distillation in the presence of water, the greater part of the phenol itself is separated from the residue containing acetophenone, dimethylphenylcarbinol as well as cumyl phenol and other polymerisation and condensation products in a subsequent column and is transformed into pure phenol in one or more subsequent distillation columns, while the residue produced in the crude phenol column is cracked by heating in the sump of a column or other suitable vessel provided with a return flow of the aqueous phase from the hydrocarbon column, and the vapours from the cracking column are fed without intermediate condensation into a subsequent distillation column also provided with a return flow of the aqueous phase from the hydrocarbon column and the vapours are distilled in such a manner that the acetophenone remains in the sump of this column and the vapours containing low boiling point cracking products are returned into the hydrocarbon column without intermediate condensation. In an example a residue from the phenol distillation containing 20% phenol is cracked and processed according to the invention and the acetophenone residue obtained from the sump of the column following the cracking column is found to contain only 6.5% phenol.
GB21927/60A 1959-07-15 1960-06-22 Improvements in or relating to processes for the production of phenol Expired GB883085A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE883085X 1959-07-15

Publications (1)

Publication Number Publication Date
GB883085A true GB883085A (en) 1961-11-22

Family

ID=6831923

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21927/60A Expired GB883085A (en) 1959-07-15 1960-06-22 Improvements in or relating to processes for the production of phenol

Country Status (1)

Country Link
GB (1) GB883085A (en)

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