BR0010239A - Sols baseados em sìlica - Google Patents

Sols baseados em sìlica

Info

Publication number
BR0010239A
BR0010239A BR0010239-3A BR0010239A BR0010239A BR 0010239 A BR0010239 A BR 0010239A BR 0010239 A BR0010239 A BR 0010239A BR 0010239 A BR0010239 A BR 0010239A
Authority
BR
Brazil
Prior art keywords
silica
based particles
sol containing
aqueous sol
containing silica
Prior art date
Application number
BR0010239-3A
Other languages
English (en)
Other versions
BRPI0010239B1 (pt
Inventor
Michael Persson
Marek Tokarz
Maj-Lis Dahlgren
Hans Johansson-Vestin
Original Assignee
Akzo Nobel Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from SE9901687A external-priority patent/SE9901687D0/xx
Application filed by Akzo Nobel Nv filed Critical Akzo Nobel Nv
Publication of BR0010239A publication Critical patent/BR0010239A/pt
Publication of BRPI0010239B1 publication Critical patent/BRPI0010239B1/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/141—Preparation of hydrosols or aqueous dispersions
    • C01B33/142—Preparation of hydrosols or aqueous dispersions by acidic treatment of silicates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/146—After-treatment of sols
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/141—Preparation of hydrosols or aqueous dispersions
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/141—Preparation of hydrosols or aqueous dispersions
    • C01B33/142—Preparation of hydrosols or aqueous dispersions by acidic treatment of silicates
    • C01B33/143—Preparation of hydrosols or aqueous dispersions by acidic treatment of silicates of aqueous solutions of silicates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/141—Preparation of hydrosols or aqueous dispersions
    • C01B33/142—Preparation of hydrosols or aqueous dispersions by acidic treatment of silicates
    • C01B33/143—Preparation of hydrosols or aqueous dispersions by acidic treatment of silicates of aqueous solutions of silicates
    • C01B33/1435—Preparation of hydrosols or aqueous dispersions by acidic treatment of silicates of aqueous solutions of silicates using ion exchangers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/06—Paper forming aids
    • D21H21/10—Retention agents or drainage improvers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/28—Starch
    • D21H17/29—Starch cationic
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
    • D21H17/375—Poly(meth)acrylamide
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
    • D21H17/44—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups cationic
    • D21H17/45—Nitrogen-containing groups
    • D21H17/455—Nitrogen-containing groups comprising tertiary amine or being at least partially quaternised

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Silicon Compounds (AREA)
  • Paper (AREA)
  • Steroid Compounds (AREA)
  • Dental Preparations (AREA)
  • Colloid Chemistry (AREA)

Abstract

"SOLS BASEADOS EM SìLICA". A presente invenção se refere a um processo para a produção de um sol aquoso contendo partículas baseadas em sílica que compreende as etapas de: (a) acidificação de uma solução de silicato aquosa em um pH a partir de 1 até 4 para formar um sol ácido; (b) alcalinização do sol ácido em um conteúdo de SiO~ 2~ dentro da faixa a partir de 4,5 % em peso até 8,0 % em peso; (e) possibilitar crescimento de partícula do sol alcalinizado por pelo menos 10 minutos; ou tratamento de calor do sol alcalinizado a uma temperatura de pelo menos 30<198>C; (d) alcalinização do sol obtido em um pE de pelo menos 10,0; e (e) opcionalmente concentração do sol obtido em concordância com as etapas (b), (e) ou (d) para proporcionar um sol aquoso contendo partículas baseadas em sílica e possuindo uma área de superfície específica de pelo menos 90 m^ 2^/g de sol aquoso; bem como a um sol aquoso contendo partículas baseadas em sílica obteníveis pelo processo. A invenção também se refere a um sol aquoso contendo partículas baseadas em sílica cujo sol possui uma área de superfície específica de pelo menos 115 m^ 2^/g de sol aquoso e um valor S dentro da faixa a partir de 10% até 45 % ou contendo partículas baseadas em sílica possuindo uma área de superfície específica de pelo menos 550 m^ 2^/g de SiO~ 2~ e de menos do que 1.000 m^ 2^/g de SiO~ 2~. A invenção adicionalmente se refere à utilização do sol aquoso contendo partículas baseadas em sílica como um auxiliador de drenagem e retenção na produção de papel bem como a um processo para a produção de papel a partir de uma suspensão aquosa contendo fibras celulósicas, e enchimentos, opcionais, no qual partículas baseadas em sílica e pelo menos um polímero orgânico carregado são adicionados à suspensão celulósica.
BRPI0010239A 1999-05-04 2000-04-28 sols baseados em sílica BRPI0010239B1 (pt)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US13235999P 1999-05-04 1999-05-04
EP99850074 1999-05-04
SE9901687A SE9901687D0 (sv) 1999-05-06 1999-05-06 Silica-based sols
US16244599P 1999-10-29 1999-10-29
EP99850160 1999-10-29
PCT/SE2000/000822 WO2000066492A1 (en) 1999-05-04 2000-04-28 Silica-based sols

Publications (2)

Publication Number Publication Date
BR0010239A true BR0010239A (pt) 2002-03-19
BRPI0010239B1 BRPI0010239B1 (pt) 2016-10-25

Family

ID=27514522

Family Applications (2)

Application Number Title Priority Date Filing Date
BRPI0010238-5A BR0010238B1 (pt) 1999-05-04 2000-04-28 sol aquoso contendo partìculas baseadas em sìlica, processo para sua produção, uso e processo para a produção de papel.
BRPI0010239A BRPI0010239B1 (pt) 1999-05-04 2000-04-28 sols baseados em sílica

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BRPI0010238-5A BR0010238B1 (pt) 1999-05-04 2000-04-28 sol aquoso contendo partìculas baseadas em sìlica, processo para sua produção, uso e processo para a produção de papel.

Country Status (18)

Country Link
US (3) US20020147240A1 (pt)
EP (3) EP1181244B1 (pt)
JP (2) JP3785322B2 (pt)
KR (2) KR100473904B1 (pt)
CN (2) CN100473604C (pt)
AT (2) ATE334939T1 (pt)
AU (2) AU758165B2 (pt)
BR (2) BR0010238B1 (pt)
CA (3) CA2502419C (pt)
CZ (2) CZ299846B6 (pt)
DE (2) DE60029778T2 (pt)
ES (2) ES2291203T3 (pt)
NZ (2) NZ514752A (pt)
PL (2) PL201407B1 (pt)
PT (2) PT1181245E (pt)
RU (1) RU2213053C2 (pt)
SI (1) SI1181245T1 (pt)
WO (2) WO2000066492A1 (pt)

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CA2371492A1 (en) 2000-11-09
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PL351165A1 (en) 2003-03-24
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CZ20013915A3 (cs) 2002-05-15
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BR0010238A (pt) 2002-03-19
NZ514753A (en) 2004-03-26
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RU2213053C2 (ru) 2003-09-27
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BR0010238B1 (pt) 2011-02-22
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