Menetelmä ligniinin poistamiseksi kemiallisesta paperimassasta
A chemical paper pulp delignification method comprising a series of chlorinated reagent-free steps, i.e. an oxygen treatment step, a pulp decontamination step using a metal ion sequestering agent, an alkaline hydrogen peroxide treatment step and a peroxyacid treatment step.
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| Hauptverfasser: | , , |
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| Format: | Patent |
| Sprache: | fin ; swe |
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| Zusammenfassung: | A chemical paper pulp delignification method comprising a series of chlorinated reagent-free steps, i.e. an oxygen treatment step, a pulp decontamination step using a metal ion sequestering agent, an alkaline hydrogen peroxide treatment step and a peroxyacid treatment step. |
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