ZA967135B - Process for working up residues from the crude ester distillation in the preparation of dimethyl terephthalate (dmt) - Google Patents

Process for working up residues from the crude ester distillation in the preparation of dimethyl terephthalate (dmt)

Info

Publication number
ZA967135B
ZA967135B ZA967135A ZA967135A ZA967135B ZA 967135 B ZA967135 B ZA 967135B ZA 967135 A ZA967135 A ZA 967135A ZA 967135 A ZA967135 A ZA 967135A ZA 967135 B ZA967135 B ZA 967135B
Authority
ZA
South Africa
Prior art keywords
dmt
residues
working
preparation
dimethyl terephthalate
Prior art date
Application number
ZA967135A
Other languages
English (en)
Inventor
Ralf Thiel
Reinhard Auschner
Original Assignee
Huels Chemische Werke 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 Huels Chemische Werke Ag filed Critical Huels Chemische Werke Ag
Publication of ZA967135B publication Critical patent/ZA967135B/xx

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
    • C07C51/09—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid esters or lactones
    • 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
    • C07C67/60—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C63/00—Compounds having carboxyl groups bound to a carbon atoms of six-membered aromatic rings
    • C07C63/14—Monocyclic dicarboxylic acids
    • C07C63/15—Monocyclic dicarboxylic acids all carboxyl groups bound to carbon atoms of the six-membered aromatic ring
    • C07C63/26—1,4 - Benzenedicarboxylic acid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
ZA967135A 1995-08-23 1996-08-22 Process for working up residues from the crude ester distillation in the preparation of dimethyl terephthalate (dmt) ZA967135B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19530970A DE19530970A1 (de) 1995-08-23 1995-08-23 Verfahren zur Aufarbeitung von Rückständen aus der Rohester-Destillation bei der Herstellung von Dimethylterephthalat (DMT)

Publications (1)

Publication Number Publication Date
ZA967135B true ZA967135B (en) 1997-03-03

Family

ID=7770162

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA967135A ZA967135B (en) 1995-08-23 1996-08-22 Process for working up residues from the crude ester distillation in the preparation of dimethyl terephthalate (dmt)

Country Status (11)

Country Link
US (1) US5646331A (zh)
EP (1) EP0761639B1 (zh)
KR (1) KR970010726A (zh)
CN (1) CN1080254C (zh)
BG (1) BG63158B1 (zh)
BR (1) BR9603510A (zh)
DE (2) DE19530970A1 (zh)
PL (1) PL315770A1 (zh)
TR (1) TR199600660A2 (zh)
TW (1) TW406071B (zh)
ZA (1) ZA967135B (zh)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1142858B (de) * 1961-07-19 1963-01-31 Witten Gmbh Chem Werke Verfahren zur Gewinnung von Diphenylpolycarbonsaeuremethylestern
DE2010137C3 (de) * 1970-03-04 1979-07-05 Dynamit Nobel Ag, 5210 Troisdorf Verfahren zur Herstellung von Terephthalsauredimethylester
DD104973A5 (zh) * 1972-09-12 1974-04-05
DE3045332C2 (de) * 1980-12-02 1982-11-25 Dynamit Nobel Ag, 5210 Troisdorf Verfahren zur Gewinnung und Wiederverwendung von Schwermetalloxidationskatalysator aus Rückständen im Witten-DMT-Prozeß
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
DE4026733A1 (de) * 1990-08-24 1992-02-27 Huels Chemische Werke Ag Verfahren zur reinigung eines oxidationsabgases

Also Published As

Publication number Publication date
US5646331A (en) 1997-07-08
BG100794A (en) 1997-08-29
DE59600474D1 (de) 1998-10-01
TW406071B (en) 2000-09-21
PL315770A1 (en) 1997-03-03
EP0761639A1 (de) 1997-03-12
TR199600660A2 (tr) 1997-03-21
MX9603493A (es) 1997-07-31
CN1150144A (zh) 1997-05-21
BR9603510A (pt) 1998-05-12
EP0761639B1 (de) 1998-08-26
CN1080254C (zh) 2002-03-06
KR970010726A (ko) 1997-03-27
DE19530970A1 (de) 1997-02-27
BG63158B1 (bg) 2001-05-31

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