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公开(公告)号：US08728274B2
公开(公告)日：2014-05-20
申请号：US11847374
申请日：2007-08-30
IPC分类号： D21F11/00
摘要： The present invention relates to a method of treating an aqueous suspension of bleached pulp derived from an alkaline pulping process comprising dewatering and drying said suspension, wherein the pH of the suspension to be treated ranges from about 6.5 to about 12.
摘要翻译： 本发明涉及一种处理来自碱性制浆方法的漂白纸浆的水性悬浮液的方法，包括脱水和干燥所述悬浮液，其中待处理的悬浮液的pH为约6.5至约12。
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2.发明授权Method of treating cellulose fibres with chlorine dioxide and an alkyl cellulose derivative 有权用二氧化氯和烷基纤维素衍生物处理纤维素纤维的方法公开(公告)号：US08007636B2
公开(公告)日：2011-08-30
申请号：US11238148
申请日：2005-09-29
IPC分类号： D21C9/14
摘要： The present invention relates to methods of modifying cellulose fibers and of producing paper which methods include providing a pulp suspension of cellulose fibers and adding a cellulose derivative during the bleaching of the cellulose fibers in an acidic bleaching stage.
摘要翻译： 本发明涉及改性纤维素纤维和生产纸的方法，所述方法包括提供纤维素纤维的纸浆悬浮液，并且在酸性漂白阶段漂白纤维素纤维期间加入纤维素衍生物。
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公开(公告)号：US08920603B2
公开(公告)日：2014-12-30
申请号：US11870016
申请日：2007-10-10
摘要： The present invention relates to a process of bleaching pulp derived from an alkaline pulping process having a hexenuronic acid content prior to the final bleaching stage from about 1 to about 80 mmol/kg dry pulp, said process comprising three chlorine dioxide stages D0, D1, and D2, wherein the chlorine dioxide charges based on the total chlorine dioxide charge ina) D0 is from about 40 to about 60%;b) D1 is from about 30 to about 55%;c) D2 is from about 4 to about 20%, and wherein the final chlorine dioxide stage D2 is performed at a pH from about 2 to about 4.5. The invention also relates to a bleached pulp obtainable by the process.
摘要翻译： 本发明涉及一种漂白来自碱性制浆法的纸浆的方法，所述碱性制浆方法在最终漂白阶段之前具有约1-约80mmol / kg干纸浆，所述方法包括三个二氧化氯阶段D0，D1， 和D2，其中二氧化氯基于a）D0中的总二氧化氯电荷充电为约40至约60％; b）D1为约30至约55％; c）D2为约4至约20％，并且其中最终二氧化氯阶段D2在约2至约4.5的pH下进行。 本发明还涉及通过该方法获得的漂白纸浆。
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公开(公告)号：US20080073043A1
公开(公告)日：2008-03-27
申请号：US11847374
申请日：2007-08-30
IPC分类号： D21C9/18
摘要： The present invention relates to a method of treating an aqueous suspension of bleached pulp derived from an alkaline pulping process comprising dewatering and drying said suspension, wherein the pH of the suspension to be treated ranges from about 6.5 to about 12.
摘要翻译： 本发明涉及一种处理来自碱性制浆方法的漂白纸浆的水性悬浮液的方法，包括脱水和干燥所述悬浮液，其中待处理的悬浮液的pH为约6.5至约12。
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