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When a solution containing dissolved calcium, such as a Q-stage filtrate, is mixed with black liquor at a temperature below 70°C, the precipitation of calcium carbonate is kinetically hindered. If the mixture however is heated calcium carbonate rapidly precipitates in the temperature range of 110 to 130°C. This observation supports the conclusion that such supersaturated solutions will be prone to scaling if not deactivated by heat treatment.
Experience the Power of Publications in the 2024 TAPPI Press Catalog
Sponsored by the Recovery Boiler Program R&D Subcommittee of the American Forest & Paper Association (AF&PA) and published by TAPPI Press.
The best-selling text to introduce the entire technology of pulp and paper manufacture.
A project of the Yankee Dryer Safety & Reliability Committee.
TAPPI Press offers some of the most in-depth resources and references for the forest products and related industries.
Available for Purchase – Conference Proceedings
TAPPI maintains a record of key conference papers, presentations, and other conference publications, available for purchase in a variety of formats.