Separation of 3,4-diaminotoluene from a mixture of o-toluenediam

Details Separation of 3,4-diaminotoluene from a mixture of o-toluenediam Separation of 3,4-diaminotoluene from a mixture of o-toluenediam

1974-07-29

1976-06-01

Shaver, Paul F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 8526

Patent

active

039609634

ABSTRACT:
Purified 3,4-toluenediamine is separated from a mixture of o-toluenediamine isomers containing principally 3,4-toluenediamine and 2,3-toluenediamine by crystallizing from a solvent selected from the group consisting of toluene, benzene and xylene.

REFERENCES:
patent: 2623903 (1952-12-01), Weaver et al.
patent: 3149162 (1964-09-01), Gardner et al.
patent: 3203994 (1965-08-01), Spiegler
patent: 3314996 (1967-04-01), Luberoff et al.
patent: 3317606 (1967-05-01), Luberoff et al.

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