AP-16 Green Liquor Heating & Recausticizing ©ProSonix LLC2012 AP-16 v20120918 Key Words – Green Liquor, Recausticizing, Steam Injection Heater, White Liquor, Pulp Mill Kraft Pulp mills produce pulp from wood chips. Within the pulp production, a chemical process produces green liquor. Green liquor is a combination of recovery boiler smelt, and dilute white liquor. Dregs are removed and liquor is sent to recausticizing tanks to produce white liquor. Flows vary based on the size of the pulp mill and can range from 350-1400 gpm. Recausticizing is a two stage process used to recover chemicals from in the pulp production process. First stage reaction occurs with lime in a highly agitated vessel known as a Slaker at high temperature

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