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    • 1. 发明申请
    • SILICA-BASED SOLS
    • 二氧化硅溶胶
    • US20110247774A1
    • 2011-10-13
    • US13054219
    • 2009-07-10
    • Marek TokarzHans-Ake Baltsen
    • Marek TokarzHans-Ake Baltsen
    • D21H17/37D21H17/68D21H17/29C04B14/04
    • C01B33/141D21H17/68
    • The present invention relates to a silica-based sol having a concentration of soluble silica of less than about 1000 mg SiO2/l, conductivity of at least about 2.0 mS/cm and S-value below about 50%. The invention further relates to a method of producing a silica-based sol comprising subjecting an aqueous alkali metal silicate solution to electrodialysis to form an electrodialyzed sol, and acidifying the electrodialyzed sol to form an acidified sol having a pH in the range of from about 5.0 to about 10. The invention further relates to silica-based sol obtainable by the process and to the use of the silica-based sol as a flocculating agent. The invention further relates to a process for producing paper which comprises providing an aqueous suspension comprising cellulosic fibers, adding to the suspension one or more drainage and retention aids comprising a silica-based sol according to the invention, and dewatering the obtained suspension to provide a sheet or web of paper.
    • 本发明涉及二氧化硅基溶胶,其溶解二氧化硅的浓度小于约1000mg SiO 2 / l,电导率为至少约2.0mS / cm,S值低于约50%。 本发明还涉及二氧化硅系溶胶的制造方法,其特征在于,使碱金属硅酸盐水溶液进行电渗析,形成电渗析溶胶,酸化所述电渗析溶胶,形成pH为约5.0的酸化溶胶 本发明还涉及通过该方法获得的二氧化硅基溶胶,以及二氧化硅基溶胶作为絮凝剂的用途。 本发明还涉及一种用于生产纸的方法,其包括提供包含纤维素纤维的水性悬浮液,向悬浮液中加入一种或多种包含根据本发明的基于二氧化硅的溶胶的引流和助留助剂,并将获得的悬浮液脱水以提供 纸张或纸张。
    • 2. 发明申请
    • Process for the production of cellulosic product
    • 生产纤维素产品的方法
    • US20100032117A1
    • 2010-02-11
    • US12520638
    • 2007-12-18
    • Patrik SimonsonMarek TokarzKatarina Gutke
    • Patrik SimonsonMarek TokarzKatarina Gutke
    • D21H17/66
    • D21H17/65D21H17/66D21H17/67D21H21/10
    • 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.
    • 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。
    • 3. 发明授权
    • Silica-based sols and their production and use
    • 二氧化硅溶胶及其生产和使用
    • US07732495B2
    • 2010-06-08
    • US11100929
    • 2005-04-07
    • Glenn MankinMarek TokarzFreddie Hansson
    • Glenn MankinMarek TokarzFreddie Hansson
    • C01B33/20C01B33/141
    • C01B33/1435D21H17/29D21H17/375D21H17/455D21H17/68D21H21/10Y10S516/928
    • The invention relates to a process for producing aqueous silica-based sols which comprises providing a cationic ion exchange resin having at least part of its ion exchange capacity in hydrogen form; bringing said ion exchange resin in contact with an aqueous alkali metal silicate to form an aqueous slurry; adjusting the pH of the aqueous slurry and separating the ion exchange resin from the aqueous slurry, as well as the silica-based sols obtained by the process.The invention also relates to silica-based sols obtained by the process, as well as a process for producing paper which comprises providing an aqueous suspension comprising cellulosic fibres; adding to the suspension one or more drainage and retention aids comprising a silica-based sol according to the invention; and dewatering the obtained suspension to provide a sheet or web of paper.
    • 本发明涉及一种生产水性二氧化硅基溶胶的方法,其包括提供具有至少部分其氢离子交换能力的阳离子离子交换树脂; 使所述离子交换树脂与碱金属硅酸盐水溶液接触以形成含水浆料; 调节含水浆料的pH值,并将离子交换树脂与含水浆料分离,以及通过该方法获得的二氧化硅基溶胶。 本发明还涉及通过该方法获得的二氧化硅基溶胶,以及一种生产纸的方法,其包括提供包含纤维素纤维的水性悬浮液; 向悬浮液中加入一种或多种包含根据本发明的基于二氧化硅的溶胶的排水和助留剂; 并将获得的悬浮液脱水以提供纸张或纸幅。
    • 4. 发明授权
    • Silica-based sols
    • 二氧化硅溶胶
    • US07169261B2
    • 2007-01-30
    • US10007885
    • 2001-11-05
    • Michael PerssonMarek TokarzMaj-Lis Dahlgren
    • Michael PerssonMarek TokarzMaj-Lis Dahlgren
    • D21H11/00
    • C01B33/1435C01B33/141C01B33/146
    • An aqueous sol containing silica-based particles which has an S-value within the range of from 10 to 45%, a viscosity within the range of from 5 to 40 cP, and a molar ratio of SiO2 to M2O, where M is alkali metal or ammonium, within the range of from 10:1 to 40:1, or a silica content of at least 10% by weight. The invention further relates to a process for the production of silica-based particles comprising the steps of: (a) acidifying an aqueous silicate solution to a pH of from 1 to 4 to form an acid sol; (b) alkalising the acid sol at an SiO2 content within the range of from 4.5 to 8% by weight to; (c) allowing particle growth of the alkalised sol for at least 10 minutes, or heat-treating the alkalised sol at a temperature of a least 30° C.; and then (d) alkalising the obtained sol to a pH of at least 10.0. The invention further relates to silica-based particles obtainable by the process, the use of the silica-based particles as drainage and retention aids in the production of paper as well as a process for the production of paper from an aqueous suspension containing cellulosic fibers, and optional filler, in which silica-based particles and at least one charged organic polymer are added to the cellulosic suspension.
    • 含有S值在10〜45%,粘度在5〜40cP的范围内的二氧化硅系粒子和SiO 2的摩尔比的含水溶胶, 至M 2 O,其中M为碱金属或铵,为10:1至40:1,或二氧化硅含量为至少10重量%。 本发明还涉及一种生产二氧化硅基颗粒的方法,包括以下步骤:(a)将硅酸水溶液酸化至1至4的pH以形成酸溶胶; (b)将酸性溶胶碱化至SiO 2重量%至4.5%至8%的范围内; (c)允许碱化溶胶的颗粒生长至少10分钟,或在至少30℃的温度下热处理碱化溶胶; 然后(d)将获得的溶胶碱化至至少10.0的pH。 本发明还涉及通过该方法可获得的二氧化硅基颗粒,使用二氧化硅基颗粒作为纸的生产中的排水和助留剂以及由含纤维素纤维的含水悬浮液生产纸的方法, 和任选的填料,其中将二氧化硅基颗粒和至少一个带电有机聚合物加入到纤维素悬浮液中。
    • 7. 发明授权
    • Silica-based sols
    • 二氧化硅溶胶
    • US08568565B2
    • 2013-10-29
    • US13054219
    • 2009-07-10
    • Marek TokarzHans-Åke Baltsen
    • Marek TokarzHans-Åke Baltsen
    • D21H17/68D21H21/10C01B33/14
    • C01B33/141D21H17/68
    • The present invention relates to a silica-based sol having a concentration of soluble silica of less than about 1000 mg SiO2/l, conductivity of at least about 2.0 mS/cm and S-value below about 50%. The invention further relates to a method of producing a silica-based sol comprising subjecting an aqueous alkali metal silicate solution to electrodialysis to form an electrodialyzed sol, and acidifying the electrodialyzed sol to form an acidified sol having a pH in the range of from about 5.0 to about 10. The invention further relates to silica-based sol obtainable by the process and to the use of the silica-based sol as a flocculating agent. The invention further relates to a process for producing paper which comprises providing an aqueous suspension comprising cellulosic fibers, adding to the suspension one or more drainage and retention aids comprising a silica-based sol according to the invention, and dewatering the obtained suspension to provide a sheet or web of paper.
    • 本发明涉及二氧化硅基溶胶,其溶解二氧化硅的浓度小于约1000mg SiO 2 / l,电导率为至少约2.0mS / cm,S值低于约50%。 本发明还涉及二氧化硅系溶胶的制造方法,其特征在于,使碱金属硅酸盐水溶液进行电渗析,形成电渗析溶胶,酸化所述电渗析溶胶,形成pH为约5.0的酸化溶胶 本发明还涉及通过该方法获得的二氧化硅基溶胶,以及二氧化硅基溶胶作为絮凝剂的用途。 本发明还涉及一种生产纸的方法,其包括提供包含纤维素纤维的水性悬浮液,向悬浮液中加入一种或多种包含根据本发明的基于二氧化硅的溶胶的引流和助留助剂,并将获得的悬浮液脱水以提供 纸张或纸张。
    • 8. 发明申请
    • SILICA-BASED SOLS AND THEIR PRODUCTION AND USE
    • 二氧化硅溶胶及其生产和使用
    • US20100236738A1
    • 2010-09-23
    • US12792419
    • 2010-06-02
    • Glenn MankinMarek TokarzFreddie Hansson
    • Glenn MankinMarek TokarzFreddie Hansson
    • D21H17/63
    • C01B33/1435D21H17/29D21H17/375D21H17/455D21H17/68D21H21/10Y10S516/928
    • The invention relates to a process for producing aqueous silica-based sols which comprises providing a cationic ion exchange resin having at least part of its ion exchange capacity in hydrogen form; bringing said ion exchange resin in contact with an aqueous alkali metal silicate to form an aqueous slurry; adjusting the pH of the aqueous slurry and separating the ion exchange resin from the aqueous slurry, as well as the silica-based sols obtained by the process.The invention also relates to silica-based sols obtained by the process, as well as a process for producing paper which comprises providing an aqueous suspension comprising cellulosic fibres; adding to the suspension one or more drainage and retention aids comprising a silica-based sol according to the invention; and dewatering the obtained suspension to provide a sheet or web of paper.
    • 本发明涉及一种生产水性二氧化硅基溶胶的方法,其包括提供具有至少部分其氢离子交换能力的阳离子离子交换树脂; 使所述离子交换树脂与碱金属硅酸盐水溶液接触以形成含水浆料; 调节含水浆料的pH值,并将离子交换树脂与含水浆料分离,以及通过该方法获得的二氧化硅基溶胶。 本发明还涉及通过该方法获得的二氧化硅基溶胶,以及一种生产纸的方法,其包括提供包含纤维素纤维的水性悬浮液; 向悬浮液中加入一种或多种包含根据本发明的基于二氧化硅的溶胶的排水和助留剂; 并将获得的悬浮液脱水以提供纸张或纸幅。
    • 9. 发明授权
    • Production of paper using slica-based-sols
    • 使用二氧化硅基溶胶生产纸张
    • US07670460B2
    • 2010-03-02
    • US11642391
    • 2006-12-20
    • Michael PerssonMarek TokarzMaj-Lis Dahlgren
    • Michael PerssonMarek TokarzMaj-Lis Dahlgren
    • D21H11/00
    • C01B33/1435C01B33/141C01B33/146
    • A process for the production of paper which includes the steps of providing an aqueous suspension containing cellulosic fibers, and optional fillers; adding to the suspension: (a) at least one charged organic polymer; and (b) an aqueous sol containing silica-based particles; wherein the sol has: (i) an S-value within the range of from 10 to 45%; (ii) a viscosity within the range of from 5 to 40 cP; and (iii) a molar ratio of SiO2 to M2O, where M is alkali metal or ammonium, within the range of from 10:1 to 40:1; and (III) forming and draining the suspension on a wire. The invention is further directed to processes for making paper wherein the added sol has: (i) an S-value within the range of from 10 to 45%; (ii) a viscosity within the range of from 5 to 40 cP; and (iii) a silica content of at least 10% by weight, or wherein the added sol has: (i) an S-value within the range of from 10 to 45%; (ii) a viscosity within the range of from 7 to 25 cP; (iii) a silica content of at least 10% by weight; (iv) a molar ratio of SiO2 to M2O, where M is alkali metal or ammonium, within the range of from 10:1 to 40:1; and (v) a pH of at least 10.6. The invention is further directed to a process for making paper wherein the added sol is modified by an aluminum-containing compound, a boron-containing compound or a mixture thereof and has: (i) an S-value within the range of from 10 to 45%; (ii) a viscosity within the range of from 5 to 40 cP; (iii) a silica content of at least 10% by weight; and (iv) a molar ratio of SiO2 to M2O, where M being alkali metal or ammonium, within the range of from 10:1 to 40:1.
    • 一种生产纸的方法,包括提供含有纤维素纤维的水性悬浮液和任选的填料的步骤; 向悬浮液中加入:(a)至少一种带电荷的有机聚合物; 和(b)含有二氧化硅基颗粒的水性溶胶; 其中所述溶胶具有:(i)在10至45%范围内的S值; (ii)粘度在5至40cP的范围内; 和(iii)SiO 2与M 2 O的摩尔比,其中M是碱金属或铵,在10:1至40:1的范围内; 和(III)在线上形成和排出悬浮液。 本发明进一步涉及制备纸的方法,其中所添加的溶胶具有:(i)S值在10至45%的范围内; (ii)粘度在5至40cP的范围内; 和(iii)至少10重量%的二氧化硅含量,或其中所添加的溶胶具有:(i)在10至45%范围内的S值; (ii)在7至25cP范围内的粘度; (iii)二氧化硅含量为至少10重量%; (iv)SiO 2与M 2 O的摩尔比,其中M为碱金属或铵,为10:1至40:1; 和(v)至少10.6的pH。 本发明还涉及一种制造纸的方法,其中添加的溶胶被含铝化合物,含硼化合物或其混合物改性,并具有:(i)S值在10〜 45%; (ii)粘度在5至40cP的范围内; (iii)二氧化硅含量为至少10重量%; 和(iv)SiO 2与M 2 O的摩尔比,其中M为碱金属或铵,为10:1至40:1。
    • 10. 发明申请
    • Production of paper using slica-based-sols
    • 使用二氧化硅基溶胶生产纸张
    • US20070095493A1
    • 2007-05-03
    • US11642391
    • 2006-12-20
    • Michael PerssonMarek TokarzMaj-Lis Dahlgren
    • Michael PerssonMarek TokarzMaj-Lis Dahlgren
    • D21H21/10
    • C01B33/1435C01B33/141C01B33/146
    • A process for the production of paper which includes the steps of providing an aqueous suspension containing cellulosic fibers, and optional fillers; adding to the suspension: (a) at least one charged organic polymer; and (b) an aqueous sol containing silica-based particles; wherein the sol has: (i) an S-value within the range of from 10 to 45%; (ii) a viscosity within the range of from 5 to 40 cP; and (iii) a molar ratio of SiO2 to M2O, where M is alkali metal or ammonium, within the range of from 10:1 to 40:1; and (III) forming and draining the suspension on a wire. The invention is further directed to processes for making paper wherein the added sol has: (i) an S-value within the range of from 10 to 45%; (ii) a viscosity within the range of from 5 to 40 cP; and (iii) a silica content of at least 10% by weight, or wherein the added sol has: (i) an S-value within the range of from 10 to 45%; (ii) a viscosity within the range of from 7 to 25 cP; (iii) a silica content of at least 10% by weight; (iv) a molar ratio of SiO2 to M2O, where M is alkali metal or ammonium, within the range of from 10:1 to 40:1; and (v) a pH of at least 10.6. The invention is further directed to a process for making paper wherein the added sol is modified by an aluminum-containing compound, a boron-containing compound or a mixture thereof and has: (i) an S-value within the range of from 10 to 45%; (ii) a viscosity within the range of from 5 to 40 cP; (iii) a silica content of at least 10% by weight; and (iv) a molar ratio of SiO2 to M2O, where M being alkali metal or ammonium, within the range of from 10:1 to 40:1.
    • 一种生产纸的方法,包括提供含有纤维素纤维的水性悬浮液和任选的填料的步骤; 向悬浮液中加入:(a)至少一种带电荷的有机聚合物; 和(b)含有二氧化硅基颗粒的水性溶胶; 其中所述溶胶具有:(i)在10至45%范围内的S值; (ii)粘度在5至40cP的范围内; 和(iii)SiO 2与M 2 O的摩尔比,其中M是碱金属或铵,在10:1至40:1的范围内; 和(III)在线上形成和排出悬浮液。 本发明进一步涉及制备纸的方法,其中所添加的溶胶具有:(i)S值在10至45%的范围内; (ii)粘度在5至40cP的范围内; 和(iii)至少10重量%的二氧化硅含量,或其中所添加的溶胶具有:(i)在10至45%范围内的S值; (ii)在7至25cP范围内的粘度; (iii)二氧化硅含量为至少10重量%; (iv)SiO 2与M 2 O的摩尔比,其中M是碱金属或铵,在10:1至40:1的范围内; 和(v)至少10.6的pH。 本发明还涉及一种制造纸的方法,其中添加的溶胶被含铝化合物,含硼化合物或其混合物改性,并具有:(i)S值在10〜 45%; (ii)粘度在5至40cP的范围内; (iii)二氧化硅含量为至少10重量%; 和(iv)SiO 2与M 2 O的摩尔比,其中M为碱金属或铵,为10:1至40:1。