DE1793431A1 - A process for purifying 4,4'-Dihydroxydiphenylpropan- (2,2) or the Phenoladduktes these compounds - Google Patents

A process for purifying 4,4'-Dihydroxydiphenylpropan- (2,2) or the Phenoladduktes these compounds

Info

Publication number
DE1793431A1
DE1793431A1 DE19681793431 DE1793431A DE1793431A1 DE 1793431 A1 DE1793431 A1 DE 1793431A1 DE 19681793431 DE19681793431 DE 19681793431 DE 1793431 A DE1793431 A DE 1793431A DE 1793431 A1 DE1793431 A1 DE 1793431A1
Authority
DE
Germany
Prior art keywords
dihydroxydiphenylpropan
phenoladduktes
purifying
compounds
process
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.)
Pending
Application number
DE19681793431
Other languages
German (de)
Inventor
Dr Schwarz Hans Helmut
Guenther Dr Klotz
Georg Dipl-Ing Spott
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Priority to DE19681793431 priority Critical patent/DE1793431A1/en
Publication of DE1793431A1 publication Critical patent/DE1793431A1/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/68Purification; separation; Use of additives, e.g. for stabilisation
    • C07C37/70Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
    • C07C37/84Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by crystallisation
DE19681793431 1968-09-17 1968-09-17 A process for purifying 4,4'-Dihydroxydiphenylpropan- (2,2) or the Phenoladduktes these compounds Pending DE1793431A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19681793431 DE1793431A1 (en) 1968-09-17 1968-09-17 A process for purifying 4,4'-Dihydroxydiphenylpropan- (2,2) or the Phenoladduktes these compounds

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE19681793431 DE1793431A1 (en) 1968-09-17 1968-09-17 A process for purifying 4,4'-Dihydroxydiphenylpropan- (2,2) or the Phenoladduktes these compounds
GB4062669A GB1277282A (en) 1968-09-17 1969-08-14 A process for the purification of 4,4-dihydroxy-diphenyl-2,2-propane or the phenol adduct thereof
NL6913707A NL6913707A (en) 1968-09-17 1969-09-09
JP7283269A JPS5011909B1 (en) 1968-09-17 1969-09-16
BE738962D BE738962A (en) 1968-09-17 1969-09-17
FR6931631A FR2018276A1 (en) 1968-09-17 1969-09-17

Publications (1)

Publication Number Publication Date
DE1793431A1 true DE1793431A1 (en) 1971-07-01

Family

ID=5707702

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681793431 Pending DE1793431A1 (en) 1968-09-17 1968-09-17 A process for purifying 4,4'-Dihydroxydiphenylpropan- (2,2) or the Phenoladduktes these compounds

Country Status (6)

Country Link
JP (1) JPS5011909B1 (en)
BE (1) BE738962A (en)
DE (1) DE1793431A1 (en)
FR (1) FR2018276A1 (en)
GB (1) GB1277282A (en)
NL (1) NL6913707A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2359500A1 (en) * 1972-11-30 1974-06-27 Sir Soc Italiana Resine Spa A process for the preparation of 2,2 (4,4'-dihydroxydiphenyl) -propane

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1050828C (en) * 1993-02-16 2000-03-29 中国石油化工总公司 Method of dephenolization for preparing high quality polycarbonic ester grade bisphenol A
CN1080914A (en) * 1993-02-17 1994-01-19 中国石油化工总公司 A kind of 2, the manufacture method of 2-two (4-hydroxy phenyl) propane
DE4413396A1 (en) * 1994-04-18 1995-10-19 Bayer Ag Process for the preparation of ultra-pure bisphenol-A and its use

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2359500A1 (en) * 1972-11-30 1974-06-27 Sir Soc Italiana Resine Spa A process for the preparation of 2,2 (4,4'-dihydroxydiphenyl) -propane

Also Published As

Publication number Publication date
BE738962A (en) 1970-03-02
GB1277282A (en) 1972-06-07
NL6913707A (en) 1970-03-19
FR2018276A1 (en) 1970-05-29
JPS5011909B1 (en) 1975-05-07

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