ES8609294A1 - Procedimiento para la fabricacion de tetralindianhidrino. - Google Patents

Procedimiento para la fabricacion de tetralindianhidrino.

Info

Publication number
ES8609294A1
ES8609294A1 ES547309A ES547309A ES8609294A1 ES 8609294 A1 ES8609294 A1 ES 8609294A1 ES 547309 A ES547309 A ES 547309A ES 547309 A ES547309 A ES 547309A ES 8609294 A1 ES8609294 A1 ES 8609294A1
Authority
ES
Spain
Prior art keywords
maleic anhydride
reacting maleic
vinyl benzenes
vinyl
benzenes
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
ES547309A
Other languages
English (en)
Other versions
ES547309A0 (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.)
Huels AG
Original Assignee
Chemische Werke Huels 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 Chemische Werke Huels AG filed Critical Chemische Werke Huels AG
Publication of ES8609294A1 publication Critical patent/ES8609294A1/es
Publication of ES547309A0 publication Critical patent/ES547309A0/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/54—Preparation of carboxylic acid anhydrides
    • C07C51/567—Preparation of carboxylic acid anhydrides by reactions not involving carboxylic acid anhydride groups

Abstract

PROCEDIMIENTO PARA LA PREPARACION DE TETRALINANHIDRIDO. SE PREPARA UNA SOLUCION DE ACIDO MALEICO E HIDROQUINONA, EN LA QUE SE INSUF/LA AIRE PARA PONERLA A LA TEMPERATURA DE REACCION ELEGIDA, AÑADIENDOLE DESPUES BENZOL VINILICO, DE MODO QUE NO AUMENTE DEMASIADO LA TEMPERATURA DE REACCION. UNA VEZ CONCLUISA LA REACCION Y ENFRIADA LA MEZCLA, SE FILTRA EL PRODUCTO FINAL QUE HA PRECIPITADO Y SE RECRISTALIZA POR ADICION DE ACETONITRILO O DE UNA MEZCLA DE TOLUOL Y ACETONA. EL RENDIMIENTO ES DEL ORDEN DEL 90JC EN PESO.
ES547309A 1984-09-27 1985-09-26 Procedimiento para la fabricacion de tetralindianhidrino. Expired ES8609294A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843435429 DE3435429A1 (de) 1984-09-27 1984-09-27 Verfahren zur umsetzung von maleinsaeureanhydrid mit vinylbenzolen

Publications (2)

Publication Number Publication Date
ES8609294A1 true ES8609294A1 (es) 1986-09-01
ES547309A0 ES547309A0 (es) 1986-09-01

Family

ID=6246474

Family Applications (1)

Application Number Title Priority Date Filing Date
ES547309A Expired ES8609294A1 (es) 1984-09-27 1985-09-26 Procedimiento para la fabricacion de tetralindianhidrino.

Country Status (6)

Country Link
US (1) US4614808A (es)
EP (1) EP0176691B1 (es)
JP (1) JPS61178976A (es)
AT (1) ATE34737T1 (es)
DE (2) DE3435429A1 (es)
ES (1) ES8609294A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5414094A (en) * 1990-01-26 1995-05-09 Cytec Technology Corp. High purity and high yield synthesis of dianhydrides

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3410876A (en) * 1963-03-18 1968-11-12 American Cyanamid Co Process for the preparation of certain dianhydrides which comprises bringing into reactive contact under and atmosphere of nitric oxide at elevated temperature maleic anhydride and a vinyl benzene material having not more than two vinyl groups whereby the corresponding dianhydride is obtained
US3472875A (en) * 1967-04-20 1969-10-14 American Cyanamid Co Process for purifying crude 3,4 - dicarboxy - 1,2,3,4 - tetrahydro - 1 - naphthalene succinic dianhydride comprising recrystallizing said dianhydride from an acetonitrile solution
US3769304A (en) * 1971-06-01 1973-10-30 American Cyanamid Co Preparation of dianhydrides from maleic anhydride and a vinyl benzene
JPS57188581A (en) * 1981-05-15 1982-11-19 Nippon Zeon Co Ltd Novel tetracarboxylic acid anhydride and its preparation
JPS58171776A (ja) * 1982-03-31 1983-10-08 Fujitsu Ltd 磁気デイスク装置のアドレスマ−ク検出方式

Also Published As

Publication number Publication date
EP0176691B1 (de) 1988-06-01
EP0176691A3 (en) 1986-06-04
US4614808A (en) 1986-09-30
DE3435429A1 (de) 1986-04-03
DE3563042D1 (en) 1988-07-07
JPS61178976A (ja) 1986-08-11
ATE34737T1 (de) 1988-06-15
EP0176691A2 (de) 1986-04-09
ES547309A0 (es) 1986-09-01

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