The State-of-the-Art in Pulping Technology (VII) Technology on Recovery and Preparation of Cooking Liquor

Abstract

This paper deals with forcussing on recovery processes and preparation of cooking liquor as the final report of this pulping technology series.
1) As the attractive developing technology in recovery processes, there are reviewed washer equipment, evaporation and recovery boiler which contribute to save energy. And also it should added that computor control in this field had come into wide use and is effective technology for operation and save energy.
2) As the attractive technology in preparation of cooking liquor, the pressurized filter and direct causticizing process are reviewed.