IT1089137B - Procedimento per la purificazione di difenoli impuri - Google Patents

Procedimento per la purificazione di difenoli impuri

Info

Publication number
IT1089137B
IT1089137B IT31221/77A IT3122177A IT1089137B IT 1089137 B IT1089137 B IT 1089137B IT 31221/77 A IT31221/77 A IT 31221/77A IT 3122177 A IT3122177 A IT 3122177A IT 1089137 B IT1089137 B IT 1089137B
Authority
IT
Italy
Prior art keywords
diphenols
impure
purification
procedure
impure diphenols
Prior art date
Application number
IT31221/77A
Other languages
English (en)
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
Application granted granted Critical
Publication of IT1089137B publication Critical patent/IT1089137B/it

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
IT31221/77A 1976-12-30 1977-12-23 Procedimento per la purificazione di difenoli impuri IT1089137B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/755,983 US4107443A (en) 1976-12-30 1976-12-30 Process for purifying impure diphenols

Publications (1)

Publication Number Publication Date
IT1089137B true IT1089137B (it) 1985-06-18

Family

ID=25041521

Family Applications (1)

Application Number Title Priority Date Filing Date
IT31221/77A IT1089137B (it) 1976-12-30 1977-12-23 Procedimento per la purificazione di difenoli impuri

Country Status (6)

Country Link
US (1) US4107443A (it)
JP (1) JPS53101349A (it)
DE (1) DE2758566A1 (it)
FR (1) FR2376110A1 (it)
IT (1) IT1089137B (it)
NL (1) NL7713279A (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59160489U (ja) * 1983-04-13 1984-10-27 瓜生　利隆 回転カバ−
DE3912670A1 (de) * 1988-12-19 1990-06-21 Ruetgerswerke Ag Verfahren zum gleichzeitigen entbasen und entschwefeln von phenolen
DE3900680C1 (it) * 1989-01-12 1989-11-09 Bayer Ag, 5090 Leverkusen, De
IL105722A (en) * 1992-05-19 1997-11-20 Tosoh Corp Single crystals of tetrabromobisphenol a, having a large particle size and process for their production
US6500973B2 (en) 2000-06-02 2002-12-31 Eastman Chemical Company Extractive solution crystallization of chemical compounds
AU2001266708A1 (en) 2000-06-02 2001-12-11 Eastman Chemical Company Improved purification of phenyl ester salts
US10278065B2 (en) 2016-08-14 2019-04-30 Liveperson, Inc. Systems and methods for real-time remote control of mobile applications

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2032073C3 (de) * 1970-06-29 1978-09-21 Bayer Ag, 5090 Leverkusen Verfahren zur Gewinnung bzw. Herstellung von reinem Tetrachlorbisphenol A
GB1483190A (en) * 1973-11-02 1977-08-17 Shell Int Research Purification of diphenylolpropane

Also Published As

Publication number Publication date
NL7713279A (nl) 1978-07-04
JPS53101349A (en) 1978-09-04
FR2376110A1 (fr) 1978-07-28
US4107443A (en) 1978-08-15
DE2758566A1 (de) 1978-07-06

Similar Documents

Publication Publication Date Title
SE396192B (sv) Forfarande for rening av stoftbemengd gas
IT1058597B (it) Processo per la preparazione continua di polibutilentereftalati
ZA773397B (en) Method of purifying silicon
ZA771525B (en) Purification of gases
IT1089138B (it) Procedimento per la purificazione di difenoli impuri
IT1083713B (it) Procedimento per la fabbricazione di formammide
JPS535165A (en) Purification of dibenzylidenesorbitol
IT1089137B (it) Procedimento per la purificazione di difenoli impuri
IT1143678B (it) Procedimento per la clorurazione diretta di alchil-benzeni
IT1112095B (it) Procedimento per la produzione di ortoacetati alchilici
IT1019309B (it) Procedimento per la purificazione di correnti gassose
IT1079005B (it) Procedimento ed apparecchio per la produzione di silicio di elevata purezza
IT1122111B (it) Procedimento per la purificazione di resorcina grezza
IT8049988A0 (it) Procedimento per la produzione dicomposti antrachinonici
GB1555821A (en) Process for the purification of caprolacttam
IT1065972B (it) Processo per la preparazione di poliaddotti contenenti fosforo
IT1086689B (it) Procedimento per la produzione di clorometilsilani
IT1080382B (it) Procedimento per la produzione di enammidi
IT1080511B (it) Procedimento per la purificazione di nistatina
JPS53101347A (en) Method for purification of crude diphenol
JPS52148665A (en) Purification of caramel
IT1112051B (it) Procedimento per l'isolamento di l-cistina pura
IT1079924B (it) Procedimento per la purificazione di 3-fenossibenzaldeide
IT1030399B (it) Procedimento per la purificazione di lecitina
IT7868641A0 (it) Procedimento di purificazione delmercaptobenzotiazole