DK0431477T3 - Fremgangsmåde til rensning af dimethylterephthalat - Google Patents

Fremgangsmåde til rensning af dimethylterephthalat

Info

Publication number
DK0431477T3
DK0431477T3 DK90122903.9T DK90122903T DK0431477T3 DK 0431477 T3 DK0431477 T3 DK 0431477T3 DK 90122903 T DK90122903 T DK 90122903T DK 0431477 T3 DK0431477 T3 DK 0431477T3
Authority
DK
Denmark
Prior art keywords
dimethyl terephthalate
purifying dimethyl
purifying
terephthalate
dimethyl
Prior art date
Application number
DK90122903.9T
Other languages
English (en)
Inventor
Wilfried Bachmann
Rolf Dr Bader
Horst Dr Buettner
Edgar Dr Wetzel
Original Assignee
Hoechst 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25887596&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK0431477(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hoechst Ag filed Critical Hoechst Ag
Application granted granted Critical
Publication of DK0431477T3 publication Critical patent/DK0431477T3/da

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DK90122903.9T 1989-12-02 1990-11-30 Fremgangsmåde til rensning af dimethylterephthalat DK0431477T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3939913 1989-12-02
DE4017343 1990-05-30

Publications (1)

Publication Number Publication Date
DK0431477T3 true DK0431477T3 (da) 1994-05-02

Family

ID=25887596

Family Applications (1)

Application Number Title Priority Date Filing Date
DK90122903.9T DK0431477T3 (da) 1989-12-02 1990-11-30 Fremgangsmåde til rensning af dimethylterephthalat

Country Status (8)

Country Link
US (1) US5116518A (da)
EP (1) EP0431477B1 (da)
JP (1) JPH03223234A (da)
DE (2) DE59004416D1 (da)
DK (1) DK0431477T3 (da)
ES (1) ES2050343T3 (da)
IE (1) IE904329A1 (da)
PT (1) PT96056A (da)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4312491A1 (de) * 1993-04-16 1994-10-20 Hoechst Ag Gewinnung von 4,4'-Biphenyl-dicarbonsäure-dimethylester
CN1041082C (zh) * 1993-05-12 1998-12-09 天津石油化工公司研究所 一种对苯二甲酸二甲酯膜式结晶精制方法
DE19848200A1 (de) * 1998-10-20 2000-04-27 Basf Ag Verfahren zur Trocknung von Phenoxymethylbenzoesäuren
CN103193734B (zh) * 2013-04-24 2015-01-21 长春迈灵生物工程有限公司 一种甲氯噻嗪重结晶的高纯度种子循环注入方法
CN110746295A (zh) * 2019-11-13 2020-02-04 山东成武易信环保科技有限公司 一种dotp提纯工艺

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3076019A (en) * 1959-12-21 1963-01-29 Standard Oil Co Process for production of dimethyl terephthalate
US3845100A (en) * 1970-02-13 1974-10-29 Standard Oil Co Process for conversion of para-xylene to high purity dimethyl terephthalate
DD104973A5 (da) * 1972-09-12 1974-04-05
DE3430555A1 (de) * 1984-08-20 1986-02-27 Hoechst Ag, 6230 Frankfurt Verfahren zur abtrennung von dimethylisophthalat und dimethylorthophthalat aus ihrem gemisch mit dimethylterephthalat
US4760165A (en) * 1985-11-13 1988-07-26 Teijin Petrochemical Industries, Ltd. Recovering useful components at least containing dimethyl terephthalate from high-boiling byproducts occurring in the production of dimethyl terephthalate
DE3904586A1 (de) * 1989-02-16 1990-08-23 Huels Chemische Werke Ag Verfahren zur herstellung von dmt-zwischenprodukt bestimmter reinheit sowie dessen weiterverarbeitung zu reinst-dmt und/oder mittel- oder hochreiner terephthalsaeure

Also Published As

Publication number Publication date
DE59004416D1 (de) 1994-03-10
EP0431477A1 (de) 1991-06-12
US5116518A (en) 1992-05-26
DE4038138A1 (de) 1991-06-06
JPH03223234A (ja) 1991-10-02
EP0431477B1 (de) 1994-01-26
ES2050343T3 (es) 1994-05-16
IE904329A1 (en) 1991-06-05
PT96056A (pt) 1991-09-13

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