GB991307A - An improved process for preparing bisphenols - Google Patents

An improved process for preparing bisphenols

Info

Publication number
GB991307A
GB991307A GB9530/63A GB953063A GB991307A GB 991307 A GB991307 A GB 991307A GB 9530/63 A GB9530/63 A GB 9530/63A GB 953063 A GB953063 A GB 953063A GB 991307 A GB991307 A GB 991307A
Authority
GB
United Kingdom
Prior art keywords
improved process
bisphenols
bisphenol
alkyl
temperature
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
GB9530/63A
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of GB991307A publication Critical patent/GB991307A/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
    • C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
    • C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
    • C07C37/84—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by crystallisation
    • 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
    • C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
    • C07C37/20—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
    • 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
    • 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
    • C07C37/685—Processes comprising at least two steps in series
    • 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
    • C07C39/12—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings
    • C07C39/15—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings with all hydroxy groups on non-condensed rings, e.g. phenylphenol
    • C07C39/16—Bis-(hydroxyphenyl) alkanes; Tris-(hydroxyphenyl)alkanes

Landscapes

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

Abstract

Bisphenols of formula <FORM:0991307/C2/1> are produced by condensing in a basic alcoholic solution the corresponding precursors (HO)(R1)2C6H2CHOHR and (HO)(R1)2C6H3, passing the reaction mixture to a crystallization zone at a temperature at which the bisphenol remains in solution, reducing the temperature to crystallize the bisphenol, separating the latter and recycling to the reaction zone. In the formulae, R is H or alkyl and R1 is C1-8-alkyl, at least one R1\h on each phenyl ring being branched on its alpha-carbon atom. Specifications 806,961, 892,261, 900,116 and 913,520 are referred to.
GB9530/63A 1962-03-12 1963-03-11 An improved process for preparing bisphenols Expired GB991307A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17882662A 1962-03-12 1962-03-12

Publications (1)

Publication Number Publication Date
GB991307A true GB991307A (en) 1965-05-05

Family

ID=22654081

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9530/63A Expired GB991307A (en) 1962-03-12 1963-03-11 An improved process for preparing bisphenols

Country Status (1)

Country Link
GB (1) GB991307A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4798654A (en) * 1987-05-06 1989-01-17 Mitsui Toatsu Chemicals, Inc. Process for preparing bisphenol A
EP0343382A1 (en) * 1988-05-23 1989-11-29 General Electric Company Method for the production of bis-phenols
US4946877A (en) * 1988-02-10 1990-08-07 Mitsui Toatsu Chemicals, Inc. Process for producing bisphenol A

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4798654A (en) * 1987-05-06 1989-01-17 Mitsui Toatsu Chemicals, Inc. Process for preparing bisphenol A
US4946877A (en) * 1988-02-10 1990-08-07 Mitsui Toatsu Chemicals, Inc. Process for producing bisphenol A
EP0343382A1 (en) * 1988-05-23 1989-11-29 General Electric Company Method for the production of bis-phenols

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