Dimethylterephthalate (DMT) production – explosion protection through oxygen measurement during centrifuge inertization

One of the top-ten DMT producers was faced with periodic deficiencies of their oxygen measurement system for centrifuge inertization processes. The use of a competitive METTLER TOLEDO solution could improve efficiency.

Background
DMT is a primary ingredient used in the manufacture of polyesters and industrial plastics. It is used in automotive parts, films, fishing lines, and food packaging materials.

The production of high-purity DMT requires accurate re-crystallization processes.

At the same stage, DMT is dissolved in methanol. Centrifuges play a key role in separating DMT from methanol to obtain the purified DMT crystals. Safety and efficiency must always be a top priority in the separation process. Under the wrong conditions, centrifuges can turn into an ignition source and consequently become a risk factor.

An inert nitrogen gas atmosphere serves to reduce a centrifuge's oxygen concentration below the Limiting Oxygen Concentration (LOC)….

Please open the below pdf-file to read the entire «Application Note»!