Slaking and Causticizing
The slakers and causticizers are where the liquid-based chemical reactions of the recaust area occur. The purpose of slaking and causticizing is to convert clarified green liquor to white liquor for use in the digesters. This module will discuss the role of slaking and causticizing in the recaust system as well as identify and describe the major equipment and process flows.





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Course Details
Learning Objectives
• Describe the role of slaking and causticizing in the recaust system
• Describe the slaking and causticizing chemical reactions
• Identify and describe the major equipment and process flows
• Describe operating considerations for slaking and causticizing
• Identify key safety considerations when working around a slaker and causticizers
Specs
Frequently Asked Questions
What is slaking?
What is causticizing?
How is the slaker temperature controlled?
At what temperature does a slaker operate?
What is causticizing efficiency?
Sample Video Transcript
The slaker is a combination vessel that consists of a large tank called, the slaker bowl and an incline classifer. Its purpose is to mix lime and green liquor and settle out the grits produced this reaction. The slaker bowl has an inlet for both lime and green liquor, an agitator, and a side discharge to the classifier. The classifier has an inlet from the slaker bowl and a conveyor to discharge the grits. It also has an outlet that sends the slurry to the causticizers.