2008 R & D of the manufacturing technology of ADI-series products

ADI is a general term of aliphatic isocyanates, with representative varieties like dicyclohexyl methane-4,4’-diisocyanate (H12MDI), isophorone diisocyanate (IPDI), hexamethylene diisocyanate (HDI), etc. ADI has a complex process and is difficult to be technologically developed, so that only a few enterprises in the world have been able to produce it in the past 60 years. The project named “research and development of ADI-series products of Wanhua” lasted ten years from project approval to a significant technological breakthrough with arduous research and development. In 2009, a kiloton ADI pilot-plant designed and developed by the researchers at Wanhua was completed and successfully implemented in the first commissioning, and produced qualified H12MDI, HDI and IPDI products successively. Since then, Wanhua has successfully opened the door to ADI-series products manufacturing.