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Study on the Application of Environment-friendly Hydrogen Peroxide Stabilizer
  
DOI:10.11980/j.issn.0254-508X.2018.10.003
Key Words:stabilizer  chelator  PHS  pulp whiteness  H2O2 residual
Author NameAffiliation
LI De-pin Zhejiang Transfar Whyyon Chemical Co., Ltd., Hangzhou Zhejiang Province 311231 
QU Ya-ping* Zhejiang Transfar Whyyon Chemical Co., Ltd., Hangzhou Zhejiang Province 311231 
YAO Sheng Zhejiang Transfar Whyyon Chemical Co., Ltd., Hangzhou Zhejiang Province 311231 
YANG Lei Zhejiang Transfar Whyyon Chemical Co., Ltd., Hangzhou Zhejiang Province 311231 
LIU Xiao-xiao Zhejiang Transfar Whyyon Chemical Co., Ltd., Hangzhou Zhejiang Province 311231 
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Abstract:The hydrogen peroxide stabilizer PHS and other chelating agents were used for chelation test of calcium ion.The results showed that the ability of PHS to chelate calcium ions under alkaline condition could reach 580 mg/g and even more.Hydrogen peroxide stabilizer PHS and chelator EDTA were respectively used in the first and second stage bleaching of CTMP pulp under the optimum amount of hydrogen peroxide.The impacts on pulp whiteness and residual hydrogen peroxide in the raffinate were investigated.The results showed that, in the first stage bleaching, PHS and EDTA increased the whiteness of the pulp from 57.0% of control sample to 58.6% and 57.9%, respectively, and the content of residual H2O2 increased from 23.2% to 29.7% and 28.6%, respectively, the improvements were not obvious.But in the second stage bleaching, PHS could increase the whiteness of the pulp were from 71.9% to 78.0%, and the residual H2O2 content from 2.1% to 38.5%. Contrary the impacts of EDTA were still very limited the corresponding increases of whiteness and residual H2O2 content were 74.0% and 7.3%.When PHS was used as a hydrogen peroxide stabilizer to achieve the same whiteness of the pulp, the amount of H2O2 was reduced by 11.0%, which reduced the production cost of 16RMB per ton pulp.
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