绿液中硅含量对苛化白泥碳酸钙质量的影响  

The effect of silicon content in green liquor on properties of causticizing calcium carbonate

作　　者：刘亮[1] 黄小兵[1] 应哲[1] 全昌云[1] 刘雄伟[1] 刘北平[1] 

机构地区：[1]湖南文理学院化学化工学院,湖南常德415000

出　　处：《中华纸业》2013年第4期26-28,共3页China Pulp & Paper Industry

基　　金：湖南省科技厅计划项目(2010GK2006)资助项目;湖南省重点学科建设项目(应用化学)资助课题

摘　　要：绿液中硅含量直接影响苛化产品碳酸钙的质量和碱回收率。苛化白泥碳酸钙的粒径、盐酸不溶物含量和残碱含量随所用绿液的硅含量增加而增大,碳酸钙的含量和碱回收率随所用绿液的硅含量增加而降低。实验证明:对于芦苇原料,当绿液的除硅率达到60%时,并对产品进行适当研磨后,其白泥碳酸钙基本能满足作为抄纸填料的要求。The quality of causticizing calcium carbonate and the alkali recovery rate are depended on silicon content of green liquor. The experimental results revealed that the particle size, the content of chlorohydric acid unsolvable compound and residual alkali in causticizing calcium carbonate increase obviously with the increase of silicon content in green liquid, and the content of calcium carbonate in white mud and the alkali recovery rate are reduced with the increase of silicon content in green liquid. The quality of causticizing calcium carbonate can meet the requirements as papermaking filler when the silicon removal rate of the green liquid is more than 60%.

关 键 词：草类制浆 绿液 白泥 碳酸钙 

分 类 号：TS79[轻工技术与工程—制浆造纸工程] X793[环境科学与工程—环境工程]