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PRE-TREATMENT OF SULFITE PULP BEFORE BLEACHING WITH OXYGEN CONTAINING CHEMICALS
PRE-TREATMENT OF SULFITE PULP BEFORE BLEACHING WITH OXYGEN CONTAINING CHEMICALS
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机译:含氧化学品漂白前亚硫酸盐浆的预处理
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摘要
This invention relates to the pre-treatment ofsulfite pulp. More particularly, this invention relatesto a novel process for caustic extraction of unbleachedsulfite pulp to reduce metallic impurities in the pulp.The process of reducing metallic impurities in unbleachedsulfite pulp comprises subjecting the pulp to causticextraction.
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