GB1111874A - Process for the manufacture of pure 4,4-dihydroxydiarylalkanes - Google Patents

Process for the manufacture of pure 4,4-dihydroxydiarylalkanes

Info

Publication number
GB1111874A
GB1111874A GB197567A GB197567A GB1111874A GB 1111874 A GB1111874 A GB 1111874A GB 197567 A GB197567 A GB 197567A GB 197567 A GB197567 A GB 197567A GB 1111874 A GB1111874 A GB 1111874A
Authority
GB
United Kingdom
Prior art keywords
phenol
dihydroxydiarylalkanes
pure
manufacture
dihydroxydiaryl
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
GB197567A
Inventor
Wolfgang Maxdorf
Lothar Wigant
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.)
Filmfabrik Wolfen VEB
Original Assignee
Filmfabrik Wolfen VEB
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 Filmfabrik Wolfen VEB filed Critical Filmfabrik Wolfen VEB
Priority to GB197567A priority Critical patent/GB1111874A/en
Publication of GB1111874A publication Critical patent/GB1111874A/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

Landscapes

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

Abstract

4,41-Dihydroxydiaryl alkanes produced by phenol/ketone condensations are purified by eluting the crude product at below 0 DEG C. with a mixture of (a) an aromatic or halogenated hydrocarbon and from 3-30% based on the weight of (a) of (b) phenol or o, m or p-cresol or two or all of said cresols and recovering the 4,41-dihydroxydiaryl alkanes. The elution is preferably carried out under a weak vacuum i.e. at a pressure of from 350 to 760 mm. Hg. Suitable aromatic hydrocarbons and halogenated hydrocarbons are benzene, toluene or xylene and ethylene chloride, 1,1,22-tetrachloroethane, trichloroethylene and chlorobenzene.
GB197567A 1967-01-13 1967-01-13 Process for the manufacture of pure 4,4-dihydroxydiarylalkanes Expired GB1111874A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB197567A GB1111874A (en) 1967-01-13 1967-01-13 Process for the manufacture of pure 4,4-dihydroxydiarylalkanes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB197567A GB1111874A (en) 1967-01-13 1967-01-13 Process for the manufacture of pure 4,4-dihydroxydiarylalkanes

Publications (1)

Publication Number Publication Date
GB1111874A true GB1111874A (en) 1968-05-01

Family

ID=9731360

Family Applications (1)

Application Number Title Priority Date Filing Date
GB197567A Expired GB1111874A (en) 1967-01-13 1967-01-13 Process for the manufacture of pure 4,4-dihydroxydiarylalkanes

Country Status (1)

Country Link
GB (1) GB1111874A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2456721A1 (en) * 1979-05-07 1980-12-12 Gen Electric Pure bisphenol prodn. - from a phenol and specified acyl gp.contg. cpd. in the presence of an acidic condensing agent
EP0331173A1 (en) * 1988-03-04 1989-09-06 Mitsubishi Petrochemical Co., Ltd. Process for preparing 4,4'-dihydroxydiphenylmethane

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2456721A1 (en) * 1979-05-07 1980-12-12 Gen Electric Pure bisphenol prodn. - from a phenol and specified acyl gp.contg. cpd. in the presence of an acidic condensing agent
EP0331173A1 (en) * 1988-03-04 1989-09-06 Mitsubishi Petrochemical Co., Ltd. Process for preparing 4,4'-dihydroxydiphenylmethane
US4937392A (en) * 1988-03-04 1990-06-26 Mitsubishi Petrochemical Company, Ltd. Process for preparing 4,4'-dihydroxydiphenylmethane

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