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Study on Non-process Elements and Evaporator Scale in P-RC APMP Pulping Process
  
DOI：10.11980/j.issn.0254-508X.2014.03.001
Key Words:P-RC APMP system  non-process elements  accumulation  evaporation  scale
Fund Project:本课题为“十二五”科技支撑项目课题“15万吨/年碱性过氧化氢化学机械制浆全过程废液零排放技术与示范”（2011BAC11B02）资助项目。
Author NameAffiliation
徐　明1,2 1.中国制浆造纸研究院，北京，100102；2.制浆造纸国家工程实验室，北京，100102 
曹瀛戈1,2 1.中国制浆造纸研究院，北京，100102；2.制浆造纸国家工程实验室，北京，100102 
冯文英1,2 1.中国制浆造纸研究院，北京，100102；2.制浆造纸国家工程实验室，北京，100102 
苏振华1,2 1.中国制浆造纸研究院，北京，100102；2.制浆造纸国家工程实验室，北京，100102 
张　羽1,2 1.中国制浆造纸研究院，北京，100102；2.制浆造纸国家工程实验室，北京，100102 
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Abstract:The study and calculation of non-process elements accumulation in P-RC APMP process were carried out, and the formation and component of scale in evaporator which is used for concentrating the pulping waste liquor were analyzed. The results showed that the order of accumulation amount of non-process elements from high to low was Si, Ca, K, Cl, Mg, S, P, Fe, Mn, Al, in which, Si and Ca/Mg salts accounted for nearly 30% separately. The amount of non-process elements should be controlled in order to slow down the formation of the evaporator scale．
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