MXPA03005248A - Procedimiento de purificacion de mezclas de diisocianato de tolueno que incorpora columna de destilacion con pared divisora. - Google Patents

Procedimiento de purificacion de mezclas de diisocianato de tolueno que incorpora columna de destilacion con pared divisora.

Info

Publication number
MXPA03005248A
MXPA03005248A MXPA03005248A MXPA03005248A MXPA03005248A MX PA03005248 A MXPA03005248 A MX PA03005248A MX PA03005248 A MXPA03005248 A MX PA03005248A MX PA03005248 A MXPA03005248 A MX PA03005248A MX PA03005248 A MXPA03005248 A MX PA03005248A
Authority
MX
Mexico
Prior art keywords
toluenediisocyanate
purification
dividing
distillation column
incorporating
Prior art date
Application number
MXPA03005248A
Other languages
English (en)
Inventor
Brady Bill
Original Assignee
Bayer 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 Bayer Ag filed Critical Bayer Ag
Publication of MXPA03005248A publication Critical patent/MXPA03005248A/es

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/18—Separation; Purification; Stabilisation; Use of additives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/18—Separation; Purification; Stabilisation; Use of additives
    • C07C263/20—Separation; Purification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/10—Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/11—Batch distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

Procedimiento de purificacion de diisocianato de tolueno a partir de una alimentacion bruta de destilacion que comprende diisocianato de tolueno, un disolvente organico y menos del 2% en peso de fosgeno separando la alimentacion bruta de destilacion en una columna de destilacion con pared divisora en al menos cuatro fracciones de producto P1 - P4, siendo P1 un producto de bajo punto de ebullicion enriquecido en fosgeno, P2 un producto enriquecido en disolvente, P3 un producto de cola enriquecido en compuestos de alto punto de ebullicion, y P4 una corriente de producto de diisocianato de tolueno.
MXPA03005248A 2002-06-14 2003-06-12 Procedimiento de purificacion de mezclas de diisocianato de tolueno que incorpora columna de destilacion con pared divisora. MXPA03005248A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02013460A EP1371633A1 (en) 2002-06-14 2002-06-14 Process for the purification of mixtures of toluenediisocyanate incorporating a dividing-wall distillation column

Publications (1)

Publication Number Publication Date
MXPA03005248A true MXPA03005248A (es) 2004-05-05

Family

ID=29558345

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA03005248A MXPA03005248A (es) 2002-06-14 2003-06-12 Procedimiento de purificacion de mezclas de diisocianato de tolueno que incorpora columna de destilacion con pared divisora.

Country Status (11)

Country Link
US (1) US7118653B2 (es)
EP (2) EP1371633A1 (es)
JP (1) JP4443149B2 (es)
KR (1) KR100984426B1 (es)
CN (1) CN1310876C (es)
AT (1) ATE395329T1 (es)
BR (1) BR0302097A (es)
CA (1) CA2431439A1 (es)
DE (1) DE60320895D1 (es)
MX (1) MXPA03005248A (es)
TW (1) TWI281912B (es)

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CN105457324B (zh) 2014-08-20 2019-12-27 科思创德国股份有限公司 隔板精馏塔
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Also Published As

Publication number Publication date
EP1371635A1 (en) 2003-12-17
US7118653B2 (en) 2006-10-10
KR100984426B1 (ko) 2010-09-29
US20030230476A1 (en) 2003-12-18
ATE395329T1 (de) 2008-05-15
EP1371635B1 (en) 2008-05-14
TWI281912B (en) 2007-06-01
DE60320895D1 (de) 2008-06-26
CN1310876C (zh) 2007-04-18
JP4443149B2 (ja) 2010-03-31
CA2431439A1 (en) 2003-12-14
BR0302097A (pt) 2004-09-08
TW200404761A (en) 2004-04-01
CN1467202A (zh) 2004-01-14
EP1371633A1 (en) 2003-12-17
JP2004155760A (ja) 2004-06-03
KR20030096037A (ko) 2003-12-24

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