| 摘要 |
The subject process comprises providing chemical pulp and as E op, and/ or E p aqueous bleaching solution. The E op aqueous bleaching solution comprise s a peroxide compound, an oxygen-containing material, sodium hydroxide and magnesium hydroxide, in the absence of magnesium sulfate. Alternatively, the E op aqueous chemical solution for bleaching chemical pulp comprises an E op aqueous bleaching solution consisting essentially of a peroxide compounds an oxygen- containing material, sodium hydroxide stud magnesium hydroxide. In any case, the Chellean pulp is bleached with the E op aqueous bleaching solution to form a bleached chemical pulp. The E p aqueous bleaching solution compris es a peroxide compound, sodium hydroxide and magnesium hydroxide, in the absence of magnesium sulfate. Alternatively, the E p aqueous bleaching solution consists essentially of a peroxide compound, sodium hydroxide and magnesium hydroxide . In any case, the chemical pulp is bleached with the E op, and/or E p aqueo us bleaching solution to form a bleached chemical pulp as part of an overall chemical pulp bleaching sequence.
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