ES8601084A1 - Procedimiento para la purificacion de 2,6 xilenol bruto - Google Patents

Procedimiento para la purificacion de 2,6 xilenol bruto

Info

Publication number
ES8601084A1
ES8601084A1 ES538712A ES538712A ES8601084A1 ES 8601084 A1 ES8601084 A1 ES 8601084A1 ES 538712 A ES538712 A ES 538712A ES 538712 A ES538712 A ES 538712A ES 8601084 A1 ES8601084 A1 ES 8601084A1
Authority
ES
Spain
Prior art keywords
xylenol
molten
liq
fraction
temp
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
ES538712A
Other languages
English (en)
Other versions
ES538712A0 (es
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.)
Enichimica SpA
Original Assignee
Enichimica SpA
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 Enichimica SpA filed Critical Enichimica SpA
Publication of ES8601084A1 publication Critical patent/ES8601084A1/es
Publication of ES538712A0 publication Critical patent/ES538712A0/es
Granted 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
    • 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)
  • Polishing Bodies And Polishing Tools (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

PROCEDIMIENTO PARA LA PURIFICACION DE 26-XILENOL BRUTO. COMPRENDE LAS ETAPAS DE: A) FUNDIR 26-XILENOL BRUTO; B) ENFRIAR EL 26-XILENOL BRUTO DE MANERA LENTA Y CONSTANTE A UNA VELOCIDAD DE 01 A 10JC/HORA HASTA SEPARAR EL 60% HASTA 100% DE LA MASA EN FORMA DE SOLIDO EN CRISTALES; C) CALENTAR DE MODO GRADUAL EL SOLIDO EN CRISTALES DESPUES DE LA SEPARACION DE LA EVENTUAL FRACCION LIQUIDA FUNDIDA EN UN TIEMPO COMPRENDIDO ENTRE 1 Y 12 HORAS HASTA UN VALOR MAXIMO DE LA TEMPERATURA DEL ORDEN DE 01 A 5JC POR DEBAJO DE LA TEMPERATURA DE SOLIDIFICACION DEL 26 XILENOL A FIN DE PROVOCAR FUSION EN LA SUPERFICIE DE LOS CRISTALES; Y SEPARAR LA FRACCION LIQUIDA FUNDIDA ASI OBTENIDA Y RECUPERAR EL 26-XILENOL SOLIDO PURIFICADO. SE LLEVA A CABO EN UN CRISTALIZADOR DE HAZ DE TUBOS DOTADO DE FLUIDO PARA EL INTERCAMBIO DE CALOR EN EL EXTERIOR DE LOS PROPIOS TUBOS.
ES538712A 1983-12-05 1984-12-04 Procedimiento para la purificacion de 2,6 xilenol bruto Granted ES538712A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT24025/83A IT1167677B (it) 1983-12-05 1983-12-05 Procedimento per la purificazione di 2,6-xilenolo

Publications (2)

Publication Number Publication Date
ES8601084A1 true ES8601084A1 (es) 1985-11-01
ES538712A0 ES538712A0 (es) 1985-11-01

Family

ID=11211547

Family Applications (1)

Application Number Title Priority Date Filing Date
ES538712A Granted ES538712A0 (es) 1983-12-05 1984-12-04 Procedimiento para la purificacion de 2,6 xilenol bruto

Country Status (9)

Country Link
US (1) US4568776A (es)
EP (1) EP0146170A1 (es)
JP (1) JPS60136528A (es)
CA (1) CA1221386A (es)
DK (1) DK573284A (es)
ES (1) ES538712A0 (es)
IT (1) IT1167677B (es)
NO (1) NO158500C (es)
PL (1) PL250732A1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5243093A (en) * 1990-09-07 1993-09-07 General Electric Company Process and composition
DE69904951T3 (de) * 1998-09-03 2007-09-06 Chemtura Corporation, Middlebury Verfahren zur reinigung von 2, 4, 6-tri-(tert butyl)phenol durch schmelzkristallisierung
AU2002219968B2 (en) 2000-12-15 2005-07-28 Wm. Wrigley Jr. Company Encapsulated acid mixtures and products including same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1018838A (en) * 1962-06-04 1966-02-02 Onderzoekinsinst Res Nv Improvements in and relating to the purification of 2,6-dimethylphenol
NL285017A (es) * 1962-11-02
GB1066032A (en) * 1963-05-15 1967-04-19 Expl Des Procedes Ab Der Halde Improvements in and relating to refining processes
US3598873A (en) * 1967-04-27 1971-08-10 Universal Oil Prod Co Means for purifying low melting point solids
BE716974A (es) * 1967-06-27 1968-12-02
GB1194220A (en) * 1967-10-16 1970-06-10 Ici Ltd Crystallisation Process.
JPS58201727A (ja) * 1982-05-18 1983-11-24 Kobe Steel Ltd 物質の高純度精製法

Also Published As

Publication number Publication date
CA1221386A (en) 1987-05-05
EP0146170A1 (en) 1985-06-26
PL250732A1 (en) 1985-08-13
US4568776A (en) 1986-02-04
IT8324025A0 (it) 1983-12-05
NO844808L (no) 1985-06-06
IT1167677B (it) 1987-05-13
DK573284D0 (da) 1984-12-03
NO158500B (no) 1988-06-13
DK573284A (da) 1985-06-06
JPS60136528A (ja) 1985-07-20
NO158500C (no) 1988-09-21
ES538712A0 (es) 1985-11-01
IT8324025A1 (it) 1985-06-05

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19990503