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Study on the Stickies Aggregation Behavior in Deinked Pulp
  
DOI：10.11980/j.issn.0254-508X.2013.07.006
Key Words:FBRM  stickies  aggregation  PDADMAC
Fund Project:天津科技大学实验室开放基金项目（1203A207）；国家级大学生创新创业训练计划项目（201210057007）。
Author NameAffiliation
李国栋1 1天津科技大学天津市制浆造纸重点实验室，天津，300457 
李志强1 1天津科技大学天津市制浆造纸重点实验室，天津，300457 
张安龙2 2陕西科技大学，陕西西安，710021 
张方东1,* 1天津科技大学天津市制浆造纸重点实验室，天津，300457 
赵金琴1 1天津科技大学天津市制浆造纸重点实验室，天津，300457 
王长建2 2中冶纸业银河有限公司，山东聊城，252600 
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Abstract:A focused beam reflectance measurement (FBRM) instrument was used to continuously assess the aggregation of stickies in the white water when deinked pulp was used to produce paper. The particle size analysis, turbidity and Zeta potential were also used to evaluate the effisiency of anionic trash catcher in altering the sticikes aggregation behavior. The results indicated that FBRM provided a real-time monitor in process to establish the evolution of the resulting aggregation state as well as differences between different chemical doses. The FBRM results were in good agreement with the particle size analysis, turbidity and Zeta potential measurements. At high pH values, the anionic charge of stickies increased which caused, consumption of chemicals increased. Aggregation should be take place at neutral conditions to increase the aggregation of stickies and to avoid excessive chemical consumption.
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