公开(公告)号：US20100032117A1

公开(公告)日：2010-02-11

申请号：US12520638

申请日：2007-12-18

申请人： Patrik Simonson ,  Marek Tokarz ,  Katarina Gutke

发明人： Patrik Simonson ,  Marek Tokarz ,  Katarina Gutke

IPC分类号： D21H17/66

CPC分类号： D21H17/65 ,  D21H17/66 ,  D21H17/67 ,  D21H21/10

摘要： The present invention relates to a process for the production of a cellulosic product which comprises providing an aqueous thick suspension containing cellulosic fibers having a fiber concentration of at least about 2% by weight; adding to the thick suspension an aluminum compound, alkaline earth metal salt and acid; diluting the obtained thick suspension to form a thin suspension; adding to the thin suspension one or more drainage and retention aids; and dewatering the obtained thin suspension. The invention further relates to a process for the production of a cellulosic product which comprises providing an aqueous thick suspension containing cellulosic fibers having a fiber concentration of at least about 2% by weight and an alkaline earth metal ion concentration of at least about 100 mg/l; adding to the thick suspension an aluminum compound and optionally an acid to obtain a pH of from about 4 to about 5.5; diluting the obtained thick suspension to form a thin suspension; adding to the thin suspension one or more drainage and retention aids; and dewatering the obtained thin suspension. The invention also relates to an aqueous composition comprising a mixture of an aluminum compound, alkaline earth metal salt and acid and the use of the composition.

摘要翻译： 本发明涉及一种生产纤维素产品的方法，其包括提供含有纤维浓度至少约2重量％的纤维素纤维的水性浓悬浮液; 向厚悬浮液中加入铝化合物，碱土金属盐和酸; 稀释所得稠悬浮液以形成薄悬浮液; 向薄悬浮液中加入一种或多种排水和助留剂; 并将得到的薄悬浮液脱水。 本发明还涉及一种生产纤维素产品的方法，该方法包括提供含有纤维素浓度至少为约2重量％且碱土金属离子浓度为至少约100mg / l; 向厚悬浮液中加入铝化合物和任选的酸以获得约4至约5.5的pH; 稀释所得稠悬浮液以形成薄悬浮液; 向薄悬浮液中加入一种或多种排水和助留剂; 并将得到的薄悬浮液脱水。 本发明还涉及包含铝化合物，碱土金属盐和酸的混合物的水性组合物和组合物的用途。

公开(公告)号：US08157962B2

公开(公告)日：2012-04-17

申请号：US12520638

申请日：2007-12-18

申请人： Patrik Simonson ,  Marek Tokarz ,  Katarina Gutke

发明人： Patrik Simonson ,  Marek Tokarz ,  Katarina Gutke

IPC分类号： D21H11/00

CPC分类号： D21H17/65 ,  D21H17/66 ,  D21H17/67 ,  D21H21/10

摘要： The present invention relates to a process for the production of a cellulosic product which comprises providing an aqueous thick suspension containing cellulosic fibers having a fiber concentration of at least about 2% by weight; adding to the thick suspension an aluminum compound, alkaline earth metal salt and acid; diluting the obtained thick suspension to form a thin suspension; adding to the thin suspension one or more drainage and retention aids; and dewatering the obtained thin suspension. The invention further relates to a process for the production of a cellulosic product which comprises providing an aqueous thick suspension containing cellulosic fibers having a fiber concentration of at least about 2% by weight and an alkaline earth metal ion concentration of at least about 100 mg/l; adding to the thick suspension an aluminum compound and optionally an acid to obtain a pH of from about 4 to about 5.5; diluting the obtained thick suspension to form a thin suspension; adding to the thin suspension one or more drainage and retention aids; and dewatering the obtained thin suspension. The invention also relates to an aqueous composition comprising a mixture of an aluminum compound, alkaline earth metal salt and acid and the use of the composition.

摘要翻译： 本发明涉及一种生产纤维素产品的方法，该方法包括提供含有纤维浓度至少约2重量％的纤维素纤维的水性浓悬浮液; 向厚悬浮液中加入铝化合物，碱土金属盐和酸; 稀释所得稠悬浮液以形成薄悬浮液; 向薄悬浮液中加入一种或多种排水和助留剂; 并将得到的薄悬浮液脱水。 本发明还涉及一种生产纤维素产品的方法，该方法包括提供含有纤维素浓度至少为约2重量％且碱土金属离子浓度为至少约100mg / l; 向厚悬浮液中加入铝化合物和任选的酸以获得约4至约5.5的pH; 稀释所得稠悬浮液以形成薄悬浮液; 向薄悬浮液中加入一种或多种排水和助留剂; 并将得到的薄悬浮液脱水。 本发明还涉及包含铝化合物，碱土金属盐和酸的混合物的水性组合物和组合物的用途。