SEPARATION OF CAUSTIC LIQUOR, LIME SLUDGE AND SLUDGE IN A CAUSTICISING PROCESS

摘要

ABSTRACTIn a causticising process for separating at least white liquorand lime sludge out of the process, filters, in the form of discor drum filters are arranged. The filtrations take place underpositive pressure and the filters are arranged in a closedsystem. Such a pressure filter can also be arranged for theseparation of sludge.