A survey was conducted of US pulp and paper mills to characterize chip pile manage survey was developed by members of the TAPPI Fiber Raw Material Supply Commit tee December of 1999. There were a total of 80 re dents to the surve one sofhvood and one hard Chip transport to piles was Pile inventory method was volume to weight was predominate quality varied by region, with brightness losses being...

A series of experiments was performed to evaluate the effect of substituting sodium carbonate for the sodium hydroxide used in peroxide bleaching of spruce CTMP. Three peroxide levels were tested: I , 2, and 4% HzOz, and two levels of causticsubstitution; SO% and 80%. At both the 2% and 4% peroxide levels, substituting 50% of the caustic charge with sodium carbonate decreased the initial bright...