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    Silica-based sols
    1.
    发明授权
    Silica-based sols 有权
    二氧化硅溶胶

    公开(公告)号：US07169261B2

    公开(公告)日：2007-01-30

    申请号：US10007885

    申请日：2001-11-05

    申请人： Michael Persson ,  Marek Tokarz ,  Maj-Lis Dahlgren

    发明人： Michael Persson ,  Marek Tokarz ,  Maj-Lis Dahlgren

    IPC分类号： D21H11/00

    CPC分类号： C01B33/1435 ,  C01B33/141 ,  C01B33/146

    摘要： 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.

    摘要翻译： 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。

    Silica-based sols
    2.
    发明授权
    Silica-based sols 有权
    二氧化硅溶胶

    公开(公告)号：US07919535B2

    公开(公告)日：2011-04-05

    申请号：US10999867

    申请日：2005-01-08

    申请人： Michael Persson ,  Marek Tokarz ,  Maj-Lis Dahlgren ,  Hans Johansson-Vestin

    发明人： Michael Persson ,  Marek Tokarz ,  Maj-Lis Dahlgren ,  Hans Johansson-Vestin

    IPC分类号： B01F3/12 ,  C01B33/113 ,  C01B33/20

    CPC分类号： C01B33/146 ,  C01B33/141 ,  C01B33/143 ,  C01B33/1435 ,  D21H17/29 ,  D21H17/375 ,  D21H17/455 ,  D21H17/68 ,  D21H21/10

    摘要： The invention relates to an aqueous sol containing silica-based particles which sol has a specific surface area of at least 115 m2/g aqueous sol and an S-value within the range of from 10 to 45% or contains silica-based particles having a specific surface area of at least 550 m2/g and less than 1000 m2/g SiO2. The invention further relates to processes for the production of said aqueous sol and the use of the aqueous sol containing silica-based particles as a drainage and retention aid in the production of paper as well as a process for the production of paper from an aqueous suspension containing cellulosic fibres, and optional filler, in which silica-based particles and at least one charged organic polymer are added to the cellulosic suspension.

    摘要翻译： 本发明涉及含有二氧化硅基颗粒的水性溶胶，其溶胶的比表面积为至少115m 2 / g水溶胶，S值在10至45％范围内，或含有二氧化硅基颗粒，其具有 比表面积至少为550m2 / g且小于1000m2 / gSiO 2。 本发明还涉及生产所述水性溶胶的方法以及含有二氧化硅基颗粒的水性溶胶作为纸的生产中的排水和助留剂以及由水悬浮液生产纸的方法的用途 含有纤维素纤维和任选的填料，其中将二氧化硅基颗粒和至少一种带电有机聚合物加入到纤维素悬浮液中。

    Silica-based sols
    3.
    发明申请
    Silica-based sols 有权
    二氧化硅溶胶

    公开(公告)号：US20050113462A1

    公开(公告)日：2005-05-26

    申请号：US10999867

    申请日：2005-01-08

    申请人： Michael Persson ,  Marek Tokarz ,  Maj-Lis Dahlgren ,  Hans Johansson-Vestin

    发明人： Michael Persson ,  Marek Tokarz ,  Maj-Lis Dahlgren ,  Hans Johansson-Vestin

    IPC分类号： B01J13/00 ,  C01B33/14 ,  C01B33/141 ,  C01B33/143 ,  C01B33/146 ,  D21H17/29 ,  D21H17/37 ,  D21H17/45 ,  D21H17/68 ,  D21H21/10 ,  B01F3/12

    CPC分类号： C01B33/146 ,  C01B33/141 ,  C01B33/143 ,  C01B33/1435 ,  D21H17/29 ,  D21H17/375 ,  D21H17/455 ,  D21H17/68 ,  D21H21/10

    摘要： A process for the production of an aqueous sol containing silica-based particles which comprises (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; (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.; (d) alkalising the obtained sol to a pH of at least 10.0; and (e) optionally concentrating the sol obtained according to (b), (c) or (d) to provide an aqueous sol containing silica-based particles and having a specific surface area of at least 90 m2/g aqueous sol; as well as an aqueous sol containing silica-based particles obtainable by the process. The invention also relates to an aqueous sol containing silica-based particles which sol has a specific surface area of at least 115 m2/g aqueous sol and an S-value within the range of from 10 to 45% or contains silica-based particles having a specific surface area of at least 550 and less than 1000 m2/g SiO2. The invention further relates to the use of the aqueous sol containing silica-based particles as a drainage and retention aid in the production of paper as well as a process for the production of paper from an aqueous suspension containing cellulosic fibres, and optional filler, in which silica-based particles and at least one charged organic polymer are added to the cellulosic suspension.

    摘要翻译： 一种制备含有二氧化硅基颗粒的水性溶胶的方法，其包括（a）将硅酸盐水溶液酸化至1至4的pH以形成酸性溶胶; （b）在4.5〜8重量％的SiO 2含量范围内碱化酸性溶胶; （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。 （d）将所得溶胶碱化至至少10.0的pH; 和（e）任选地浓缩根据（b），（c）或（d）获得的溶胶，以提供含有二氧化硅基颗粒并且比表面积为至少90m 2 / > / g水溶胶; 以及含有可通过该方法获得的二氧化硅基颗粒的含水溶胶。 本发明还涉及含有二氧化硅基颗粒的水性溶胶，其溶胶的比表面积为至少115m 2 / g水溶胶，S值在10至45范围内 ％或含有比表面积至少为550且小于1000m 2 / g SiO 2的二氧化硅基颗粒。 本发明还涉及含有二氧化硅基颗粒的水性溶胶作为生产纸的排水和助留剂的用途以及从含有纤维素纤维和任选填料的含水悬浮液生产纸的方法 将这种二氧化硅基颗粒和至少一种带电有机聚合物加入到纤维素悬浮液中。

    SILICA-BASED SOLS
    4.
    发明申请
    SILICA-BASED SOLS 有权
    二氧化硅溶胶

    公开(公告)号：US20110196047A1

    公开(公告)日：2011-08-11

    申请号：US13079346

    申请日：2011-04-04

    申请人： Michael Persson ,  Marek Tokarz ,  Maj-Lis Dahlgren ,  Hans Johansson-Vestin

    发明人： Michael Persson ,  Marek Tokarz ,  Maj-Lis Dahlgren ,  Hans Johansson-Vestin

    IPC分类号： B01F3/12

    CPC分类号： C01B33/146 ,  C01B33/141 ,  C01B33/143 ,  C01B33/1435 ,  D21H17/29 ,  D21H17/375 ,  D21H17/455 ,  D21H17/68 ,  D21H21/10

    摘要： A process for the production of an aqueous sol containing silica-based particles which comprises (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; (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.; (d) alkalising the obtained sol to a pH of at least 10.0; and (e) optionally concentrating the sol obtained according to (b), (c) or (d) to provide an aqueous sol containing silica-based particles and having a specific surface area of at least 90 m2/g aqueous sol; as well as an aqueous sol containing silica-based particles obtainable by the process. The invention also relates to an aqueous sol containing silica-based particles which sol has a specific surface area of at least 115 m2/g aqueous sol and an S-value within the range of from 10 to 45% or contains silica-based particles having a specific surface area of at least 550 and less than 1000 m2/g SiO2. The invention further relates to the use of the aqueous sol containing silica-based particles as a drainage and retention aid in the production of paper as well as a process for the production of paper from an aqueous suspension containing cellulosic fibres, and optional filler, in which silica-based particles and at least one charged organic polymer are added to the cellulosic suspension.

    摘要翻译： 一种制备含有二氧化硅基颗粒的水性溶胶的方法，其包括（a）将硅酸盐水溶液酸化至1至4的pH以形成酸性溶胶; （b）将酸性溶胶碱化为SiO 2含量在4.5至8重量％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。 （d）将所得溶胶碱化至至少10.0的pH; 和（e）任选地将根据（b），（c）或（d）获得的溶胶进行浓缩，以提供含有二氧化硅基颗粒并且比表面积为至少90m 2 / g水溶胶的水性溶胶; 以及含有可通过该方法获得的二氧化硅基颗粒的含水溶胶。 本发明还涉及含有二氧化硅基颗粒的水性溶胶，所述溶胶的比表面积为至少115m 2 / g水溶胶，S值在10〜45％范围内，或含有二氧化硅系颗粒， 至少550和小于1000m 2 / g SiO 2的比表面积。 本发明还涉及含有二氧化硅基颗粒的水性溶胶作为生产纸的排水和助留剂的用途以及从含有纤维素纤维和任选填料的含水悬浮液生产纸的方法 将这种二氧化硅基颗粒和至少一种带电有机聚合物加入到纤维素悬浮液中。

    Zeolite dispersion
    6.
    发明授权
    Zeolite dispersion 失效
    沸石分散体

    公开(公告)号：US5800603A

    公开(公告)日：1998-09-01

    申请号：US823443

    申请日：1997-03-24

    申请人： Ylva Cruslock ,  Maj-Lis Dahlgren ,  Lars Lindahl

    发明人： Ylva Cruslock ,  Maj-Lis Dahlgren ,  Lars Lindahl

    IPC分类号： D06M11/45 ,  D06M11/77 ,  D06M15/03 ,  D21H17/68 ,  C09D7/02 ,  B01J13/00 ,  C09D105/00

    CPC分类号： D06M11/45 ,  D06M11/77 ,  D06M15/03 ,  D21H17/68

    摘要： An aqueous dispersion comprising particles of a zeolite having a hydrophobicity of below about 9.0 percent by weight residual butanol as determined by the Residual Butanol Test, which dispersion comprises a stabilizing amount of biogum. Production of the dispersion comprising mixing zeolite particles with a biogum into a dry mixture; and mixing the dry mixture with water under agitation into a homogeneous mixture. Use of the dispersion for binding particles of zeolite to fibers. Production of paper or paperboard by forming and dewatering a suspension of cellulosic fibers wherein dewatering is carried out in the presence of particles of a zeolite, the dispersion being added to the suspension prior to dewatering. Production of dry-laid paper, nonwoven or fluff pulp, in which cellulosic fibers are carried by a gas stream, in which the dispersion is sprayed onto the fibers while they are carried by the gas stream.

    摘要翻译： 一种水分散体，其包含通过残余丁醇试验确定的具有低于约9.0重量％残余丁醇的疏水性的沸石颗粒，该分散体包含稳定量的生物胶。 分散体的制备，包括将沸石颗粒与生物胶混合成干混合物; 并将搅拌下的干燥混合物与水混合成均匀的混合物。 使用分散体将沸石颗粒结合到纤维上。 通过使纤维素纤维的悬浮液形成和脱水来生产纸或纸板，其中脱水在沸石颗粒存在下进行，该分散体在脱水之前加入到悬浮液中。 生产干纸，无纺布或绒毛浆，其中纤维素纤维由气流携带，其中分散体在被气流携带时被喷洒到纤维上。

    Production of paper using slica-based-sols
    8.
    发明授权
    Production of paper using slica-based-sols 有权
    使用二氧化硅基溶胶生产纸张

    公开(公告)号：US07670460B2

    公开(公告)日：2010-03-02

    申请号：US11642391

    申请日：2006-12-20

    申请人： Michael Persson ,  Marek Tokarz ,  Maj-Lis Dahlgren

    发明人： Michael Persson ,  Marek Tokarz ,  Maj-Lis Dahlgren

    IPC分类号： D21H11/00

    CPC分类号： C01B33/1435 ,  C01B33/141 ,  C01B33/146

    摘要： 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.

    摘要翻译： 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。

    Production of paper using slica-based-sols
    9.
    发明申请
    Production of paper using slica-based-sols 有权
    使用二氧化硅基溶胶生产纸张

    公开(公告)号：US20070095493A1

    公开(公告)日：2007-05-03

    申请号：US11642391

    申请日：2006-12-20

    申请人： Michael Persson ,  Marek Tokarz ,  Maj-Lis Dahlgren

    发明人： Michael Persson ,  Marek Tokarz ,  Maj-Lis Dahlgren

    IPC分类号： D21H21/10

    CPC分类号： C01B33/1435 ,  C01B33/141 ,  C01B33/146

    摘要： 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.

    摘要翻译： 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。