Abstract According to the characteristics of deinked pulp in color office waste paper, several bleaching agents (H2O2, insurance powder, FAS) were selected to study its bleaching and decolorization effects. The results show that the decolorization effect of the insurance powder is best, and the bleaching ability of the FAS is the best. From the analysis of bleaching and decolorization, FAS is the first choice for the treatment of color office waste paper deinked pulp. Based on this, many factors affecting the bleaching and decolorization of FAS were studied, and the best applicable conditions were optimized. Keywords Bleaching and Decolorizing for Deinked Pulp of Colored Office WasteHou Yanzhao Sun Laihong He Zhibin Liu Yufeng (Pulp and Paper Industrial Research Institute of China, Beijing, 100020) ABSTRACT Bleaching and decolorizing of deinked Pulp of colored office waste by using several bleaching agents were investigation .The results showed that the decolorizing effect of sodium hydrosulfite was the best and the bleaching ability of FAS was the highest. FAS which possessed both bleaching and decoloring abilities, was the best agent for Treatment of deinked pulp of colored office waste. The factors affecting bleaching and decoloring ability of FAS were studied, the best practical condition was optimized.KEYWORDS colored office waste, deinked pulp, bleaching, decolorizing, FAS Hou Yanzhao (China Pulp and Paper Industry Research Institute, Beijing, 100020) Sun Laihong (Institute of China Pulp and Paper Industry, Beijing, 100020) He Zhibin (China Pulp and Paper Industry Research Institute, Beijing, 100020) Liu Yufeng (China Pulp and Paper Industry Research Institute, Beijing, 100020)
References 1. He Zhibin et al. Study on deinking process of office waste paper. China Paper, 1999; 2:16-212. Shen Xulong et al. Waste paper recycling project. Beijing: China Light Industry Press, 1990, 2173. Chen Jiaxiang et al. Principles and Engineering of Pulp. Beijing: China Light Industry Press, 1990, 275 ~ 2764. The Latest Use of Dyes. Beijing: China Textile Press, 1996, 520 ~ 526
References 1. He Zhibin et al. Study on deinking process of office waste paper. China Paper, 1999; 2:16-212. Shen Xulong et al. Waste paper recycling project. Beijing: China Light Industry Press, 1990, 2173. Chen Jiaxiang et al. Principles and Engineering of Pulp. Beijing: China Light Industry Press, 1990, 275 ~ 2764. The Latest Use of Dyes. Beijing: China Textile Press, 1996, 520 ~ 526
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