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| 碱回收白泥生产轻质碳酸钙产品及使用实践 |
| Production of Calcium Carbonate from Alkali Recovery White Mud and Its Application Practice |
| 收稿日期：2021-01-01 |
| DOI：10.11980/j.issn.0254-508X.2021.04.015 |
| 关键词: 苛化白泥 硅氧化物 填料 碳酸钙 循环利用 白泥除硅 |
| Key Words:caustic white mud silicon oxide calcium carbonate filler recycling white clay to remove silicon |
| 基金项目: |
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| 摘要:机械浆白泥中硅氧化物含量较高，给碱回收白泥回收再利用带来困难。太阳纸业联合美国特种矿业有限公司经研究和探索， 经过对苛化白泥加强洗涤、碳化、研磨等工艺的优化控制，生产的填料级碳酸钙白泥粒径、残碱、硅含量等指标达到造纸填料的要求。生产出的填料碳酸钙成功应用于太阳纸业的各种纸种上，为碱回收白泥的综合开发利用探索了一种可行的方法。 |
| Abstract:The high content of silicon oxide in alkali recovery white mud made it difficult to recycle. After research and exploration， a paper company in conjunction with the U.S. Special Mining Co.， Ltd.， optimized and controlled the process of intensified washing， carbonization and grinding to produce the calcium carbonate with the particle size， residual alkali and silicon content which met the requirements of paper filler. The produced filler calcium carbonate had been successfully applied to various kinds of paper produced in the paper company， which developed a feasible method for the comprehensive utilization of alkali recovery white mud. |
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