臭氧漂白是一种重要又经济的无氯漂白方法。
The ozone delignification is important and benefit for TCF bleaching.
因此，无氯催化剂的制备成为重要的研究方向。
Therefore, the chloride-free catalyst become the important research direction.
过氧化氢是一种重要的无氯漂剂，广泛地用于纸浆漂白中。
Hydrogen peroxide is an important chlorine free bleaching agent, which is widely used in the bleaching of pulp.
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