A novel flotation deinking chemcistry to remove flexo inks- 30 TPD pilot plant results

摘要

Current recycling processes typically incorporate agressive washing stages to successfully remove flexographic,or "flexo" inks.The yeild losses associated with such washing stages are often economicaly unacceptable.Agoal for many old newsprint (ONP) deinking mills is to be able to efficiently deink ONP containign varyign,moderate levels of flexo inks inthe flotation deinkign stage.Deinkign systems utilizing only flotation cannot handle more than 3- 5