Providing excellence in service

and technical support

for our customers

TER AS Productos was founded in Barcelona in 2009 with the objective to strengthen the position of TER GROUP in the Spanish market. During the last years we have grown constantly gaining an important position in the different sectors our customers are part of.


Phthalic anhydride

Phthalic anhydride is an organic compound and is the anhydride of phthalic acid. It is produced by heating phthalic acid and splitting off water. The partial oxidation of o-xylene produces the colorless, crystalline solid.


The main use of phthalic anhydride is as a base material for the production of plasticizers for plastics (particularly PVC). Furthermore, it is sold as a raw material for synthetic resins, as a component of surface coatings for wood, or for the preparation of dyes and pigments.

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Contact Person

Alexander Sielmann


General Manager