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公开(公告)号:US3988198A
公开(公告)日:1976-10-26
申请号:US512487
申请日:1974-10-07
CPC分类号: D21C11/0021
摘要: Spent hemi caustic effluents from cold caustic extraction of cellulosic pulps are rendered utilizable as a source of sodium hydroxide for pulp processing by heating the effluents for a period of time and at a temperature sufficient to cause the hemicelluloses in the effluents to be degraded and to substantially eliminate precipitation of the hemicelluloses onto cellulosic materials when the effluents are used.
摘要翻译: 从纤维素纸浆的冷苛性萃取中消耗的半碱性废水可用作纸浆加工的氢氧化钠源,加热流出物一段时间并且足以使流出物中的半纤维素降解并达到基本上 当使用流出液时,消除半纤维素沉淀到纤维素材料上。