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| Press Treatment of Caustic Green Mud from Alkali Recovery of Chemical Mechanical Pulp |
| Received:April 29, 2021 |
| DOI：10.11980/j.issn.0254-508X.2021.07.007 |
| Key Words:chemical mechanical pulp alkali recovery green mud press |
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| Abstract:The treatment methods of caustic green mud from alkali recovery of chemical mechanical pulp was introduced， and the different characteristics of caustic green mud from chemical mechanical pulp and alkaline pulp were discussed in this paper. The plate and frame filter press were used to instead of the traditional horizontal screw centrifuge to process causticizing green mud. The dryness of caustic green mud after treatment with plate and frame filter press could be increased 10%~13%， the residual alkali could be reduced 3%~5%， and recovery of pure solid alkali could be increased about 2 t/d. The problems like low dryness and viscosity of green mud were solved， providing conditions for the subsequent reuse of green mud. |
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