A method of producing green liquor in chemical recovery in sulfate and sulfite pulp mills.

摘要: When producing green liquor for later manufacture of cooking liquor, it is endeavoured that the shall be readily clarified and/or filtered. This endeavour achieved with present invention, which relates to a method in waste separated from cellulose pulp and derived stage possibly one or more bleaching stages worked up including known treatment such as evaporation, combustion, smelt dissolving other preparation, calcium containing chemical added prior at combustion liquor. The characterized carbon deriving caused equal most 0.3 weight promillage, calculated on after when liquid; addition controlled so amount together already will least 3/4 magnesium liquour mol; 10 % by sodium plus sulphur