公开(公告)号：US20170355606A1

公开(公告)日：2017-12-14

申请号：US15688355

申请日：2017-08-28

Applicant: Erik Sanne ,  Freddie Hansson

Inventor： Erik Sanne ,  Freddie Hansson

IPC: C01B33/143 ,  C01B33/141 ,  C01B33/145 ,  C01B33/142 ,  D21H19/40 ,  D21H21/10 ,  D21H17/37 ,  D21H17/68 ,  C01B33/14

CPC classification number: C01B33/143 ,  C01B33/14 ,  C01B33/141 ,  C01B33/142 ,  C01B33/145 ,  D21H17/375 ,  D21H17/68 ,  D21H19/40 ,  D21H21/10

Abstract: The present invention relates to a silica sol having a pH above about 10, molar ratio of Si02:M20, in which M is alkali metal, of from about 6:1 to about 16:1, concentration of soluble silica above about 3000 mg Si02/l, and S-value of from about 18 to about 40%. The invention further relates to a process for producing a silica sol which comprises acidifying an aqueous alkali metal silicate solution to a pH of from 1 to 4 to form an acid sol, alkalizing the acid sol by addition of aqueous alkali metal silicate solution to obtain an intermediate sol and interrupt the addition of aqueous alkali metal silicate solution when the intermediate sol has reached a pH of from about 5 to about 8, stirring the intermediate sol for a time period of from about 10 to about 6000 seconds without addition of aqueous alkali metal silicate solution, alkalizing the intermediate sol by addition of aqueous alkali metal silicate solution to obtain a silica sol having a pH above about 10 and molar ratio of Si02:M20, in which M is alkali metal, of from about 6:1 to about 16:1, and optionally adding an aluminum compound to the acid sol, intermediate sol or silica sol. The invention further relates to a silica sol obtainable by the process of the invention. The invention further relates to the use of the silica sol as a flocculating agent, in water purification and in producing paper and board. The invention further relates to a process for producing paper and board which comprises: (i) providing an aqueous suspension comprising cellulosic fibers; (ii) adding to the suspension one or more drainage and retention aids comprising the silica sol; and (iii) dewatering the obtained suspension to provide a sheet or web of paper or board.

公开(公告)号：US07893114B2

公开(公告)日：2011-02-22

申请号：US12792419

申请日：2010-06-02

Applicant: Glenn Mankin ,  Marek Tokarz ,  Freddie Hansson

Inventor： Glenn Mankin ,  Marek Tokarz ,  Freddie Hansson

IPC: C01B33/141 ,  C01B33/20

CPC classification number: C01B33/1435 ,  D21H17/29 ,  D21H17/375 ,  D21H17/455 ,  D21H17/68 ,  D21H21/10 ,  Y10S516/928

Abstract: 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.

Abstract translation: 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，并从含水浆液中分离离子交换树脂，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。

公开(公告)号：US07732495B2

公开(公告)日：2010-06-08

申请号：US11100929

申请日：2005-04-07

Applicant: Glenn Mankin ,  Marek Tokarz ,  Freddie Hansson

Inventor： Glenn Mankin ,  Marek Tokarz ,  Freddie Hansson

IPC: C01B33/20 ,  C01B33/141

CPC classification number: C01B33/1435 ,  D21H17/29 ,  D21H17/375 ,  D21H17/455 ,  D21H17/68 ,  D21H21/10 ,  Y10S516/928

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08846772B2

公开(公告)日：2014-09-30

申请号：US12663407

申请日：2008-06-04

Applicant: Michael Persson ,  Freddie Hansson ,  Annika Viola Pal ,  Lars Lindahl ,  Joakim Carlén

Inventor： Michael Persson ,  Freddie Hansson ,  Annika Viola Pal ,  Lars Lindahl ,  Joakim Carlén

IPC: C04B14/04 ,  D21H21/10 ,  D21H17/68 ,  C01B33/149 ,  C01B33/143 ,  D21H17/37 ,  D21H17/42 ,  D21H23/04 ,  D21H17/44

CPC classification number: D21H17/74 ,  C01B33/1435 ,  C01B33/149 ,  D21H17/375 ,  D21H17/42 ,  D21H17/44 ,  D21H17/68 ,  D21H21/10 ,  D21H23/04

Abstract: The invention relates to a sol containing silica-based particles having an axial ratio of at least about 10 and specific surface area of at least about 600 m2/g. The invention further relates to a sol containing silica-based particles having an axial ratio of at least about 10 and S-value up to about 25. The invention further relates to a sol containing silica-based particles having an axial ratio of at least about 10 and a specific surface area of at least about 400 m2/g, wherein the silica-based particles are surface-modified. The invention further relates to a sol containing silica-based particles having a viscosity of at least 50 cP and silica content of at least about 3% by weight, wherein the silica-based particles have a specific surface area of at least about 400 m2/g. The invention further relates to a process for producing the aqueous silica-based sol according to the invention, a sol containing silica-based particles obtainable by the process, use of the sol containing silica-based particles as a flocculating agent. The invention further relates to a process for producing paper in which the sol containing silica-based particles is used as a drainage and retention aid.

Abstract translation: 本发明涉及含有至少约10的轴比和至少约600m 2 / g的比表面积的二氧化硅基颗粒的溶胶。 本发明还涉及一种含有轴比为至少约10，S值至多约25的二氧化硅基颗粒的溶胶。本发明还涉及含有至少约 10，比表面积为至少约400m2 / g，其中二氧化硅基颗粒被表面改性。 本发明还涉及含有二氧化硅基颗粒的溶胶，所述颗粒具有至少50cP的粘度和至少约3重量％的二氧化硅含量，其中所述二氧化硅基颗粒的比表面积为至少约400m 2 / G。 本发明还涉及本发明的水性二氧化硅系溶胶的制造方法，含有二氧化硅系颗粒的溶胶，该方法可以使用含有二氧化硅系粒子的溶胶作为絮凝剂。 本发明还涉及一种生产纸的方法，其中含有二氧化硅基颗粒的溶胶用作排水和助留剂。

公开(公告)号：US20100170419A1

公开(公告)日：2010-07-08

申请号：US12663407

申请日：2008-06-04

Applicant: Michael Persson ,  Freddie Hansson ,  Annika Viola Pal ,  Lars Lindahl ,  Joakim Carlën

Inventor： Michael Persson ,  Freddie Hansson ,  Annika Viola Pal ,  Lars Lindahl ,  Joakim Carlën

IPC: C04B14/04

CPC classification number: D21H17/74 ,  C01B33/1435 ,  C01B33/149 ,  D21H17/375 ,  D21H17/42 ,  D21H17/44 ,  D21H17/68 ,  D21H21/10 ,  D21H23/04

Abstract: The invention relates to a sol containing silica-based particles having an axial ratio of at least about 10 and specific surface area of at least about 600 m2/g. The invention further relates to a sol containing silica-based particles having an axial ratio of at least about 10 and S-value up to about 25. The invention further relates to a sol containing silica-based particles having an axial ratio of at least about 10 and a specific surface area of at least about 400 m2/g, wherein the silica-based particles are surface-modified. The invention further relates to a sol containing silica-based particles having a viscosity of at least 50 cP and silica content of at least about 3% by weight, wherein the silica-based particles have a specific surface area of at least about 400 m2/g. The invention further relates to a process for producing the aqueous silica-based sol according to the invention, a sol containing silica-based particles obtainable by the process, use of the sol containing silica-based particles as a flocculating agent. The invention further relates to a process for producing paper in which the sol containing silica-based particles is used as a drainage and retention aid.

Abstract translation: 本发明涉及含有至少约10的轴比和至少约600m 2 / g的比表面积的二氧化硅基颗粒的溶胶。 本发明还涉及一种含有轴比为至少约10，S值至多约25的二氧化硅基颗粒的溶胶。本发明还涉及含有至少约 10，比表面积为至少约400m2 / g，其中二氧化硅基颗粒被表面改性。 本发明还涉及含有二氧化硅基颗粒的溶胶，所述颗粒具有至少50cP的粘度和至少约3重量％的二氧化硅含量，其中所述二氧化硅基颗粒的比表面积为至少约400m 2 / G。 本发明还涉及本发明的水性二氧化硅系溶胶的制造方法，含有二氧化硅系颗粒的溶胶，该方法可以使用含有二氧化硅系粒子的溶胶作为絮凝剂。 本发明还涉及一种生产纸的方法，其中含有二氧化硅基颗粒的溶胶用作排水和助留剂。

公开(公告)号：US20100236738A1

公开(公告)日：2010-09-23

申请号：US12792419

申请日：2010-06-02

Applicant: Glenn Mankin ,  Marek Tokarz ,  Freddie Hansson

Inventor： Glenn Mankin ,  Marek Tokarz ,  Freddie Hansson

IPC: D21H17/63

CPC classification number: C01B33/1435 ,  D21H17/29 ,  D21H17/375 ,  D21H17/455 ,  D21H17/68 ,  D21H21/10 ,  Y10S516/928

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20050228058A1

公开(公告)日：2005-10-13

申请号：US11100929

申请日：2005-04-07

Applicant: Glenn Mankin ,  Marek Tokarz ,  Freddie Hansson

Inventor： Glenn Mankin ,  Marek Tokarz ,  Freddie Hansson

IPC: B01F3/12 ,  C01B33/143 ,  D21H17/29 ,  D21H17/37 ,  D21H17/45 ,  D21H17/68 ,  D21H21/10

CPC classification number: C01B33/1435 ,  D21H17/29 ,  D21H17/375 ,  D21H17/455 ,  D21H17/68 ,  D21H21/10 ,  Y10S516/928

Abstract: 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.

Abstract translation: 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。