Phosgene Generation

For the industrial application we offer generators with capacities starting from 200 kg/h up to 13'000 kg/h. The generators show their performance in the range of 10 % up to 100 % of their name plate capacity. Further the plant can serve as many consumers as required. This high flexibility is one of the many outstanding attributes of the technology.
For clients who do not already have a safety absorption system satisfying our high safety standard we offer such absorption system together with the generator.

Safety First

The safety of such a system is mandatory to find acceptance on the international market. Therefore the generator has a triple safety concept. The generator is (a) in a closed containment under a small negative-pressure. The Containment is (b) flushed by air, which is monitored for traces of phosgene in a continuous manner. The air itself has to pass (c) a washing tower which would neutralise the phosgene in case of any leakages in the system. For emergency cases of any kind the plant shuts down automatically without interrupting the air flushing system.
Due to this elaborate safety system such plants got operation permits by the authorities although placed close to residential areas.

Applications in the laboratory or in semi-technical scale

To allow development work without phosgene in bottles Buss ChemTech offers a patented catalyst which allows generating three moles of phosgene out of one mole triphosgene. Sigma Aldrich is distributing this system as cartridges containing the catalyst together with 0.02 or 0.05 mole triphosgene (www.sigma-aldrich.com). For higher demands in laboratories we offer you a simple concept with glass ware. For demands up to 30 kg/h under semi-industrial conditions we propose our small generator operating with triphosgene.

Catalyst

The catalyst has a high impact on the economics of any phosgene generator as its performance has a direct relation to the CO consumption and on the CCl4 content in phosgene. Both can be minimised with our IPC catalyst which we offer our clients under license. With this catalyst you can operate your plant with a CO excess of not more than 2 vol-% which represents a saving potential of approx. 60,000 $/y for a 10 t/h plant.