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Trimellitic Anhydride

TECHNOLOGY FOR THE PRODUCTION OF TRIMELLITIC ANHYDRIDE


PROCESS FEATURES
CONSER is in position to offer technology of production of trimellitic anhydride (TMA) based on the extensive research performed in the laboratories and pilot units of the SISAS group.
CONSER has executed the complete basic design of a large TMA plant to be erected in Belgium.
The construction of the plant has been stopped due to financial problems of the SISAS group.
Technology for production of trimellitates is also available.


REFERENCES

Company Location Capacity T/y
ASI  Italy  18000
EUROFTAL   Belgium 50000 (planned)

 

FLOWSHEET

TRIMELLITIC ANHYDRIDE

PROCESS DESCRIPTION
The TMA technology offered by CONSER is based on the following major steps:


Reaction

The system of reaction is a liquid phase catalytic process oxidizing pseudocumene in an acetic-water solvent. The main product of the reaction is trimellitic acid.

Purification

Crude trimellitic acid is purified by evaporative crystallization followed by filtration. Solvent
containing streams are processed to recover acetic acid.

Dehydration and finishing

Trimellitic acid is converted to trimellitic anhydride in a dehydration process.
The raw TMA is freed from impurities by fractionation at high vacuum.
Purified TMA is flaked and bagged.

 


P.le Ezio Tarantelli, 100
00144 Rome - Italy

e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Tel. (+39) 06 5262001
Fax (+39) 06 5205249

CF e n° reg. imp.: 00875210585
partita iva: 00938941002 
capitale sociale: € 130.800,00 i.v.
rea: 327729 trib. RM 318/70

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