Technology Type
- Type
- Condensation of Aniline with Formaldehyde
- Process
- Condensation Reaction
- Abbreviation
- PMDA
- Description
-
4,4 ´-Methylenedianiline is produced by the Condensation of Formaldehyde with Aniline in the presence of an Acid Catalyst. The Reaction produces a Mixture of di-, tri-, and poly-Methyleneanilines. Aniline is removed from the Reaction Mixture by Distillation. The percentage of 4,4 ´-Methylenedianiline in the Mixtures manufactured varies from Producer to Producer. 4,4 ´-Methylenedianiline can be isolated from the Residual Mixture by Crystallization with a suitable Solvent. 4,4 ´-Methylenedianiline commercially available in bulk quantities contains approximately 96% 4,4 ´-Methylenedianiline, 3% other Isomeric Amines, and traces of Aniline.
- Link
System Info
- Updated by
-
Kokel, Nicolas
- Updated
- 11/29/2022 6:41 PM
- Added
- 11/15/2021 12:58 PM

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Technology | Owner | Entity |
---|---|---|
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Dow Inc. |