NL7714564A - PROCESS FOR PURIFYING CRUDE DIPHENOLS. - Google Patents

PROCESS FOR PURIFYING CRUDE DIPHENOLS.

Info

Publication number
NL7714564A
NL7714564A NL7714564A NL7714564A NL7714564A NL 7714564 A NL7714564 A NL 7714564A NL 7714564 A NL7714564 A NL 7714564A NL 7714564 A NL7714564 A NL 7714564A NL 7714564 A NL7714564 A NL 7714564A
Authority
NL
Netherlands
Prior art keywords
diphenols
purifying crude
purifying
crude
crude diphenols
Prior art date
Application number
NL7714564A
Other languages
Dutch (nl)
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of NL7714564A publication Critical patent/NL7714564A/en
Priority to US06/041,642 priority Critical patent/US4242527A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
    • C07C319/26—Separation; Purification; Stabilisation; Use of additives
    • C07C319/28—Separation; Purification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C315/00—Preparation of sulfones; Preparation of sulfoxides
    • C07C315/06—Separation; Purification; Stabilisation; Use of additives
    • 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
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/14—The ring being saturated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
NL7714564A 1976-12-30 1977-12-29 PROCESS FOR PURIFYING CRUDE DIPHENOLS. NL7714564A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US06/041,642 US4242527A (en) 1977-12-28 1979-05-23 Process for purifying crude diphenols

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75598276A 1976-12-30 1976-12-30

Publications (1)

Publication Number Publication Date
NL7714564A true NL7714564A (en) 1978-07-04

Family

ID=25041513

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7714564A NL7714564A (en) 1976-12-30 1977-12-29 PROCESS FOR PURIFYING CRUDE DIPHENOLS.

Country Status (4)

Country Link
JP (1) JPS53101347A (en)
DE (1) DE2758565A1 (en)
FR (1) FR2376109A1 (en)
NL (1) NL7714564A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4300000A (en) 1977-12-28 1981-11-10 General Electric Company Process for the recovery of 2,2-bis(4-hydroxyphenyl)propane
JPS5639030A (en) * 1979-09-07 1981-04-14 Sumitomo Chem Co Ltd Purification of p,p'-biphenols
US4414422A (en) * 1982-05-10 1983-11-08 The Dow Chemical Company Purification of 4,4-dihydroxybiphenyl
JPS62138443A (en) * 1985-12-11 1987-06-22 Mitsui Toatsu Chem Inc Production of biscresol
US4950806A (en) * 1988-02-22 1990-08-21 Mitsui Toatsu Chemicals, Inc. Process for crystallizing adduct of bisphenol A with phenol
DE3900680C1 (en) * 1989-01-12 1989-11-09 Bayer Ag, 5090 Leverkusen, De
US4992598A (en) * 1990-02-09 1991-02-12 Hoechst Celanese Corporation Purification of 1, 1, 1-tris(4'-hydroxyphenyl)ethane

Also Published As

Publication number Publication date
FR2376109A1 (en) 1978-07-28
JPS53101347A (en) 1978-09-04
DE2758565A1 (en) 1978-07-06

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Legal Events

Date Code Title Description
BV The patent application has lapsed