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Recaust Recaust
Minimizing variability in the recausticizing process is crucial to ensure consistent cooking of the wood chips in the pulping process.

Minimizing variability in the recausticizing process is crucial to ensure consistent cooking of the wood chips in the pulping process.

Recausticizing recovers the costly alkaline chemicals used in the cooking process of a mill. Green liquor (sodium carbonate) is converted to white or cooking liquor (sodium hydroxide) by adding lime. Minimizing variability in the recausticizing process is crucial to ensure consistent cooking of the wood chips in the pulping process. Typical operational challenges include filter scaling, slaker boiling over, and over liming.

Our solutions are tailored to meet challenges in this demanding environment and allow effective operation of the recausticizing.

Highly accurate Emerson Rosemount™ instruments are used to measure key process variables including flow, temperature, density, and conductivity. Emerson Fisher™ control valves are used to control flow while minimizing the effect of scaling and erosion. The predictive modeling and advanced tuning functionalities in Emerson DeltaV™ allow operators to control and optimize the process by maximizing causticizing efficiency while maintaining consistent white liquor quality.

Produce a high quality product consistently
Gain accurate measurements of key process variables
Avoid erosion and scaling of equipment
Control and optimize the process effectively

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