BG100794A - Метод за преработка на остатъци от дестилацията на суров естер при получаване на диметилтерефталат - Google Patents

Метод за преработка на остатъци от дестилацията на суров естер при получаване на диметилтерефталат

Info

Publication number
BG100794A
BG100794A BG100794A BG10079496A BG100794A BG 100794 A BG100794 A BG 100794A BG 100794 A BG100794 A BG 100794A BG 10079496 A BG10079496 A BG 10079496A BG 100794 A BG100794 A BG 100794A
Authority
BG
Bulgaria
Prior art keywords
treatment
dimethylterephthalate
production
residues
raw ester
Prior art date
Application number
BG100794A
Other languages
English (en)
Other versions
BG63158B1 (bg
Inventor
Ralf Thiel
Reinhard Auschner
Original Assignee
Degussa - Huels Aktiengesellschaft
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 Degussa - Huels Aktiengesellschaft filed Critical Degussa - Huels Aktiengesellschaft
Publication of BG100794A publication Critical patent/BG100794A/bg
Publication of BG63158B1 publication Critical patent/BG63158B1/bg

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)

Abstract

Изобретението се отнася до метод за преработка чрез естерификация с метанол на остатъчни фракции, които се получават от дестилацията на суровия естерпри процеса на производство на диметилтерефталат.Съгласно метода към остатъчнатафракция се добавят течен и/или парообразен метанол, като сместа предивлизането в реактора за метанолиза има температура от 230 до 2650С. Температурата на дъното на реактора има същите стойности.
BG100794A 1995-08-23 1996-08-20 Метод за преработка на остатъци от дестилацията на суров естер при получаване на диметилтерефталат BG63158B1 (bg)

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 (2)

Publication Number Publication Date
BG100794A true BG100794A (bg) 1997-08-29
BG63158B1 BG63158B1 (bg) 2001-05-31

Family

ID=7770162

Family Applications (1)

Application Number Title Priority Date Filing Date
BG100794A BG63158B1 (bg) 1995-08-23 1996-08-20 Метод за преработка на остатъци от дестилацията на суров естер при получаване на диметилтерефталат

Country Status (11)

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

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 (bg) * 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
TW406071B (en) 2000-09-21
EP0761639A1 (de) 1997-03-12
ZA967135B (en) 1997-03-03
BR9603510A (pt) 1998-05-12
KR970010726A (ko) 1997-03-27
DE59600474D1 (de) 1998-10-01
CN1150144A (zh) 1997-05-21
CN1080254C (zh) 2002-03-06
MX9603493A (es) 1997-07-31
TR199600660A2 (tr) 1997-03-21
DE19530970A1 (de) 1997-02-27
EP0761639B1 (de) 1998-08-26
PL315770A1 (en) 1997-03-03
BG63158B1 (bg) 2001-05-31
US5646331A (en) 1997-07-08

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