Stone groundwood pulping (SGW)

Stone groundwood pulping (SGW) General approach Stone groundwood pulping (SGW) is a mechanical pulping process in which wood logs are converted into wood pulp by atmospheric grinding against a rotating grindstone (Figure 1). The yield of the pulp made by SGW process is about 98.5 %, referring to fresh debarked Norway spruce (Picea abies) wood
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