DE69804753T2 - Verfahren zur trennung von isomeren der nitrotoluolsaeure - Google Patents

Verfahren zur trennung von isomeren der nitrotoluolsaeure

Info

Publication number
DE69804753T2
DE69804753T2 DE69804753T DE69804753T DE69804753T2 DE 69804753 T2 DE69804753 T2 DE 69804753T2 DE 69804753 T DE69804753 T DE 69804753T DE 69804753 T DE69804753 T DE 69804753T DE 69804753 T2 DE69804753 T2 DE 69804753T2
Authority
DE
Germany
Prior art keywords
nitro
toluic acid
acid
water
toluic
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 - Fee Related
Application number
DE69804753T
Other languages
German (de)
English (en)
Other versions
DE69804753D1 (de
Inventor
Ikuo Ito
Seiji Takeuchi
Keiichi Yokota
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.)
Air Water Inc
Original Assignee
Sumikin Chemical Co Ltd
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 Sumikin Chemical Co Ltd filed Critical Sumikin Chemical Co Ltd
Application granted granted Critical
Publication of DE69804753D1 publication Critical patent/DE69804753D1/de
Publication of DE69804753T2 publication Critical patent/DE69804753T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
    • C07C201/06—Preparation of nitro compounds
    • C07C201/16—Separation; Purification; Stabilisation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DE69804753T 1997-03-21 1998-01-26 Verfahren zur trennung von isomeren der nitrotoluolsaeure Expired - Fee Related DE69804753T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6867697 1997-03-21
PCT/JP1998/000277 WO1998042654A1 (en) 1997-03-21 1998-01-26 Process for the separation of nitrotoluic acid isomers

Publications (2)

Publication Number Publication Date
DE69804753D1 DE69804753D1 (de) 2002-05-16
DE69804753T2 true DE69804753T2 (de) 2002-11-28

Family

ID=13380567

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69804753T Expired - Fee Related DE69804753T2 (de) 1997-03-21 1998-01-26 Verfahren zur trennung von isomeren der nitrotoluolsaeure

Country Status (4)

Country Link
US (1) US6054609A (enExample)
EP (1) EP0927714B1 (enExample)
DE (1) DE69804753T2 (enExample)
WO (1) WO1998042654A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY138064A (en) * 2002-01-24 2009-04-30 Basf Ag Method for the separation of acids from chemical reaction mixtures by means of ionic fluids

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS507592B1 (enExample) * 1970-12-12 1975-03-27
CA959071A (en) * 1970-12-25 1974-12-10 Gentaro Yamashita Process for the separation and recovery of methylterephthalic acid and 4-methylisophthalic acid from a mixture thereof
JPS5319434B2 (enExample) * 1973-05-18 1978-06-21
CH635065A5 (de) * 1978-06-05 1983-03-15 Ciba Geigy Ag Verfahren zum trennen von gemischen aus 3- und 4-nitrophthalsaeure.
JPH0768185B2 (ja) * 1986-12-23 1995-07-26 セントラル硝子株式会社 ニトロ置換４―トリフルオロメチル安息香酸の製造方法

Also Published As

Publication number Publication date
US6054609A (en) 2000-04-25
EP0927714B1 (en) 2002-04-10
EP0927714A4 (enExample) 1999-07-07
DE69804753D1 (de) 2002-05-16
WO1998042654A1 (en) 1998-10-01
EP0927714A1 (en) 1999-07-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee