Complex sentence: The models UNIFAC and mod. UNIFAC (Dortmund) have been used already widely in software for the simulation and synthesis of chemical processes and many companies doing process development in the field of chemical engineering had announced their support for a new way to subsidize the further development.
Split into simpler sentences: The models UNIFAC and mod. UNIFAC (Dortmund) have already been used widely in software for the simulation and synthesis of chemical processes. Many companies doing process development in the field of chemical engineering had announced their support for a new way to subsidize the further development.