Changfeng has finished construction of a new in-situ phosgene production unit which ensures even safer production. Environmentally the new unit is very green, cleanly recycling the heat produced by the exothermic chemical reactions back to our boiler through a systems of heat exchangers, reducing fuel demand and cooling water waste.
Our COD is now held below 100, reducing harm to the environment as well as reducing our effluent treatment costs.