GB949668A - Improvements in or relating to the manufacture of diphenylolpropane - Google Patents

Improvements in or relating to the manufacture of diphenylolpropane

Info

Publication number
GB949668A
GB949668A GB3495162A GB3495162A GB949668A GB 949668 A GB949668 A GB 949668A GB 3495162 A GB3495162 A GB 3495162A GB 3495162 A GB3495162 A GB 3495162A GB 949668 A GB949668 A GB 949668A
Authority
GB
United Kingdom
Prior art keywords
diphenylolpropane
water
organic
diluent
present
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
GB3495162A
Inventor
Jan Ide De Jong
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.)
Konink Zwavelzuurfabrieken V H
Original Assignee
Konink Zwavelzuurfabrieken V H
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 Konink Zwavelzuurfabrieken V H filed Critical Konink Zwavelzuurfabrieken V H
Priority to GB3495162A priority Critical patent/GB949668A/en
Publication of GB949668A publication Critical patent/GB949668A/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
    • C07C37/11—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
    • C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
    • C07C37/72—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by liquid-liquid treatment

Landscapes

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

Abstract

Diphenylolpropane is obtained by the condensation of phenol and acetone in the presence of an acid catalyst and an organic diluent that is capable of forming with water and diphenylolpropane a system of liquid phases by heating to a temperature below the boiling point of the azeotrope of the organic diluent with water, said diluent being present in a proportion amounting to between 10 and 400% of the weight of the diphenylol propane to be obtained, and after completion of the reaction water is added to the reaction mixture in an amount of between 10 and 1000% of the weight of the diphenylolpropane, the mixture is heated until it is entirely liquefied, the acidic aqueous phase is separated off from the organic phase or phases, the organic part is almost completely neutralised in contact with water and is then cooled and the crystallized diphenylolpropane is collected. Residual organic diluent present in the separated diphenylolpropane may be removed therefrom by heating and/or steaming. Suitable solvents for use in the present process are aromatic hydrocarbons such as xylene and toluene, chlorinated hydrocarbons such as monochlorobenzene, 1, 2-dichloroethane and 1, 1, 2, 2-tetrachloroethane. Specifications 428,944 and 557,976 are referred to.
GB3495162A 1962-09-13 1962-09-13 Improvements in or relating to the manufacture of diphenylolpropane Expired GB949668A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3495162A GB949668A (en) 1962-09-13 1962-09-13 Improvements in or relating to the manufacture of diphenylolpropane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3495162A GB949668A (en) 1962-09-13 1962-09-13 Improvements in or relating to the manufacture of diphenylolpropane

Publications (1)

Publication Number Publication Date
GB949668A true GB949668A (en) 1964-02-19

Family

ID=10372003

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3495162A Expired GB949668A (en) 1962-09-13 1962-09-13 Improvements in or relating to the manufacture of diphenylolpropane

Country Status (1)

Country Link
GB (1) GB949668A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5414150A (en) * 1993-12-03 1995-05-09 The Dow Chemical Company Preparation of 4,4'-dihydroxy-alpha-alkylstilbenes and 4,4'-dihydroxy-alpha, alpha'-dialkylstilbenes
US5723693A (en) * 1996-09-13 1998-03-03 The Dow Chemical Company Process for preparing and recovering 4,4'-dihydroxy-alpha-alkylstilbene or 4,4'-dihydroxy-alpha, alpha'dialkylstilbene
US5723692A (en) * 1996-09-13 1998-03-03 The Dow Chemical Company Preparation of 4,4'-dihydroxy-'alkylstiblbene with reduced dimer formation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5414150A (en) * 1993-12-03 1995-05-09 The Dow Chemical Company Preparation of 4,4'-dihydroxy-alpha-alkylstilbenes and 4,4'-dihydroxy-alpha, alpha'-dialkylstilbenes
US5475155A (en) * 1993-12-03 1995-12-12 The Dow Chemical Company Preparation of 4,4'-dihydroxy-alpha'-dialkylstilbenes and 4, 4'-dihydroxy-alpha'-dialkylstilbenes
US5723693A (en) * 1996-09-13 1998-03-03 The Dow Chemical Company Process for preparing and recovering 4,4'-dihydroxy-alpha-alkylstilbene or 4,4'-dihydroxy-alpha, alpha'dialkylstilbene
US5723692A (en) * 1996-09-13 1998-03-03 The Dow Chemical Company Preparation of 4,4'-dihydroxy-'alkylstiblbene with reduced dimer formation

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