Process for storage and transport of toluenediamine

Details Process for storage and transport of toluenediamine Process for storage and transport of toluenediamine

1994-10-05

1995-09-12

Robinson, Allen J.

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

Organic compounds

Amino nitrogen containing

564305, C07C20936

Patent

active

054498325

ABSTRACT:
This invention relates to an improved process for storing and transporting toluenediamine, particularly for long term storage or storage in large containers, e.g., shipboard containers. The improvement in the process resides in substantially reducing the melting or freezing point of anhydrous toluenediamine obtained by the fractional distillation of a reaction product generated by the hydrogenation of dinitrotoluene. Such melting point reduction is accomplished by adding water in an amount of from 5 to 15% by weight of the toluenediamine and mixing therein for storage and transport. Preferably the level of water introduced to the anhydrous toluenediamine is from about 7 to 10% by weight.

REFERENCES:
patent: 4239913 (1980-12-01), Veno et al.
patent: 4444802 (1984-04-01), Winters et al.
patent: 4585573 (1986-04-01), Yanadori et al.
patent: 4762946 (1988-08-01), Ritter et al.
patent: 4906797 (1990-03-01), Lane, Jr. et al.
patent: 5097903 (1992-03-01), Wilensky

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