YU49341B - Postupak za pripremanje izocijanata - Google Patents

Postupak za pripremanje izocijanata

Info

Publication number
YU49341B
YU49341B YU68995A YU68995A YU49341B YU 49341 B YU49341 B YU 49341B YU 68995 A YU68995 A YU 68995A YU 68995 A YU68995 A YU 68995A YU 49341 B YU49341 B YU 49341B
Authority
YU
Yugoslavia
Prior art keywords
isocyanate
phosgene
solvent
izocyanates
preparing
Prior art date
Application number
YU68995A
Other languages
English (en)
Other versions
YU68995A (sh
Inventor
Klaus Jost
GГјnter Hammen
Rudolf Sundermann
Original Assignee
Bayer 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 Bayer Aktiengesellschaft filed Critical Bayer Aktiengesellschaft
Publication of YU68995A publication Critical patent/YU68995A/sh
Publication of YU49341B publication Critical patent/YU49341B/sh

Links

Classifications

    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Kontinualan postupak za pripremanje izocijanata reakcijom odgovarajućih primarnih amina sa fozgenom u prisustvu nekog izocijanata, kao rastvarača, naznačen time, što se primarni amin, eventualno rastvoren u nekom inertnom, organskom rastvaraču, i fozgen, koji je rastvoren u izocijanatu u koncentraciji od 10 do 60 mas.%, računato na rastvor izocijanat/fozgen, na temperaturama od 60 do 180В°C i pritiscima od 1 do 30 bar (105 do 3x106 Pa), prevode u odgovarajući izocijanat, pri čemu molski odnos fozgena prema unetom aminu iznosi 4:1 do 1:1, i što izocijanat,upotrebijen kao rastvarač, ne sadrži čvrstu supstancu, a vrednost hlora koji može biti hidrolizovan manja je od 2%. Prijava sadrži još 3 zavisna zahteva.
YU68995A 1994-11-17 1995-11-02 Postupak za pripremanje izocijanata YU49341B (sh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4440917 1994-11-17
DE19521800A DE19521800C2 (de) 1994-11-17 1995-06-16 Verfahren zur Herstellung von Isocyanaten

Publications (2)

Publication Number Publication Date
YU68995A YU68995A (sh) 1998-08-14
YU49341B true YU49341B (sh) 2005-07-19

Family

ID=6533464

Family Applications (1)

Application Number Title Priority Date Filing Date
YU68995A YU49341B (sh) 1994-11-17 1995-11-02 Postupak za pripremanje izocijanata

Country Status (5)

Country Link
KR (1) KR100381878B1 (sh)
DE (2) DE19521800C2 (sh)
TW (1) TW333523B (sh)
YU (1) YU49341B (sh)
ZA (1) ZA959751B (sh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10261187A1 (de) * 2002-12-20 2004-07-08 Basf Ag Verfahren zur Herstellung von Isocyanaten
US10577311B2 (en) * 2015-09-24 2020-03-03 Covestro Deutschland Ag Method for producing isocyanates

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422976A (en) * 1981-04-07 1983-12-27 Mitsui Toatsu Chemicals, Incorporated Continuous preparation of organic isocyanates

Also Published As

Publication number Publication date
YU68995A (sh) 1998-08-14
KR100381878B1 (ko) 2003-11-17
TW333523B (en) 1998-06-11
DE19521800C2 (de) 1998-07-02
ZA959751B (en) 1996-05-29
DE19521800A1 (de) 1996-05-23
DE59506651D1 (de) 1999-09-23
KR970707084A (ko) 1997-12-01

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