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bce ›› 2017, Vol. 51 ›› Issue (3): 27-32.doi: 10.3969/j.issn.1673-5854.2017.03.005

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Preparation of Biomass Based Efficient Deinking Agent and Its Application

ZHANG Ming1, YE Jianping2, YANG Rendang1   

  1. 1. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China;
    2. Guangdong Oasis Pulp Molded Packaging Products Co., Ltd., Nanxiong 512426, China
  • Received:2016-06-06 Online:2017-05-30 Published:2017-06-01

Abstract: The biomass based deinking agent was prepared by using cheap and renewable coconut fatty acid,palmitic acid and gum rosin as raw materials. The raw materials were characterized by FT-IR;the technology of preparation was optimized;the optimum addition amount of deinking agent and the deinking properties were discussed. The deinking properties were also compared with the traditional deinking agents. The FT-IR results showed that the raw materials were both saturated fatty acids and unsaturated fatty acids,and the optimized preparation conditions of biomass deinking agent were 30min,90℃,m(gum rosin):m(coconut fatty acid):m(palmitic acid) of 2.5:3.5:4.0,NaOH mass fraction of 40%. The obtained biomass based deinking agent was a kind of high efficient deinking agent,and the optimum addition amount was 0.2%. After deinking under the addition amount 0.2%,40℃,the mass fraction of pulp 1.0% and pH value 9 for 20min,the brightness of deinking pulp was 58.67%(ISO),the residual ink concentration was 274.42mm2/m2,and the removal rate of ink was 57.81%. Practical application results showed that the deinking effect of biomass based deinking was superior to that of the traditional type S and tian xiao deinking agents.

Key words: biomass, deinking agent, preparation, application

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