Process for the production of toluene diisocyanate

Details Process for the production of toluene diisocyanate Process for the production of toluene diisocyanate

2006-06-07

2011-10-04

Sullivan, Daniel (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

Reexamination Certificate

active

08030522

ABSTRACT:
The invention relates to a process for the production of toluene diisocyanate, in which the crude toluenediamine obtained from the hydrogenation is purified and then phosgenated. The purification step reduces the total amount of cyclic ketones to less than 0.1% by weight, based on 100% by weight of the toluenediamine.

REFERENCES:
patent: 5872278 (1999-02-01), Kraus et al.
patent: 6140539 (2000-10-01), Sander et al.
patent: 6900348 (2005-05-01), Reif et al.
patent: 2004/0092773 (2004-05-01), Forlin et al.
patent: 2004/0118672 (2004-06-01), Grun et al.
patent: 2209139 (1997-12-01), None
patent: 1 260 092 (1968-02-01), None

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