SE9400690D0 - Silica-based sols, preparation and use of the soles - Google Patents

Silica-based sols, preparation and use of the soles

Info

Publication number
SE9400690D0
SE9400690D0 SE9400690A SE9400690A SE9400690D0 SE 9400690 D0 SE9400690 D0 SE 9400690D0 SE 9400690 A SE9400690 A SE 9400690A SE 9400690 A SE9400690 A SE 9400690A SE 9400690 D0 SE9400690 D0 SE 9400690D0
Authority
SE
Sweden
Prior art keywords
silica
surface area
specific surface
sols
anionic particles
Prior art date
Application number
SE9400690A
Other languages
Swedish (sv)
Other versions
SE9400690L (en
SE502464C2 (en
Inventor
Hans Johansson
Original Assignee
Eka Nobel Ab
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
Application filed by Eka Nobel Ab filed Critical Eka Nobel Ab
Priority to SE9400690A priority Critical patent/SE502464C2/en
Publication of SE9400690D0 publication Critical patent/SE9400690D0/en
Priority to ZA951466A priority patent/ZA951466B/en
Priority to TW084101674A priority patent/TW282504B/zh
Priority to PCT/SE1995/000200 priority patent/WO1995023021A1/en
Priority to AU19062/95A priority patent/AU1906295A/en
Publication of SE9400690L publication Critical patent/SE9400690L/en
Publication of SE502464C2 publication Critical patent/SE502464C2/en

Links

Classifications

    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)

Abstract

Silica-based sols containing silica-based anionic particles having a high specific surface area and silica-based anionic particles having a low specific surface area. The sols can be prepared by mixing a sol containing silica-based anionic particles having a high specific surface area with a sol containing silica-based anionic particles having a low specific surface area. The sols are used as flocculating agents, in combination with amphoteric or cationic polymers, particularly in the production of paper and pulp but also for water purification.
SE9400690A 1994-02-28 1994-02-28 Silica-based sols, preparation and use of the soles SE502464C2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE9400690A SE502464C2 (en) 1994-02-28 1994-02-28 Silica-based sols, preparation and use of the soles
ZA951466A ZA951466B (en) 1994-02-28 1995-02-22 Silica-based sols preparation and use of the sols
TW084101674A TW282504B (en) 1994-02-28 1995-02-23
PCT/SE1995/000200 WO1995023021A1 (en) 1994-02-28 1995-02-24 Silica-based sols, preparation and use of the sols
AU19062/95A AU1906295A (en) 1994-02-28 1995-02-24 Silica-based sols, preparation and use of the sols

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9400690A SE502464C2 (en) 1994-02-28 1994-02-28 Silica-based sols, preparation and use of the soles

Publications (3)

Publication Number Publication Date
SE9400690D0 true SE9400690D0 (en) 1994-02-28
SE9400690L SE9400690L (en) 1995-08-29
SE502464C2 SE502464C2 (en) 1995-10-23

Family

ID=20393117

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9400690A SE502464C2 (en) 1994-02-28 1994-02-28 Silica-based sols, preparation and use of the soles

Country Status (5)

Country Link
AU (1) AU1906295A (en)
SE (1) SE502464C2 (en)
TW (1) TW282504B (en)
WO (1) WO1995023021A1 (en)
ZA (1) ZA951466B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5571494A (en) * 1995-01-20 1996-11-05 J. M. Huber Corporation Temperature-activated polysilicic acids
US5846384A (en) * 1995-06-15 1998-12-08 Eka Chemicals Ab Process for the production of paper
SE9502522D0 (en) * 1995-07-07 1995-07-07 Eka Nobel Ab A process for the production of paper
SE9600285D0 (en) 1996-01-26 1996-01-26 Eka Nobel Ab Modification of starch
RU2213053C2 (en) * 1999-05-04 2003-09-27 Акцо Нобель Н.В. Silicon dioxide-base sols
US7169261B2 (en) 1999-05-04 2007-01-30 Akzo Nobel N.V. Silica-based sols
US6861112B2 (en) 2002-11-15 2005-03-01 Cabot Corporation Dispersion, coating composition, and recording medium containing silica mixture
US7732495B2 (en) 2004-04-07 2010-06-08 Akzo Nobel N.V. Silica-based sols and their production and use
US7629392B2 (en) 2004-04-07 2009-12-08 Akzo Nobel N.V. Silica-based sols and their production and use
US7201826B2 (en) 2004-05-17 2007-04-10 Zo Mineral Partners Ltd. High performance natural zeolite microparticle retention aid for papermaking
GB0702249D0 (en) 2007-02-05 2007-03-14 Ciba Sc Holding Ag Manufacture of paper or paperboard
GB0702248D0 (en) 2007-02-05 2007-03-14 Ciba Sc Holding Ag Manufacture of Filled Paper
AR066831A1 (en) 2007-06-07 2009-09-16 Akzo Nobel Nv SILICE BASED SOLES
CL2008002019A1 (en) 2007-07-16 2009-01-16 Akzo Nobel Chemicals Int Bv A filler composition comprising a filler, a cationic inorganic compound, a cationic organic compound, and an anionic polysaccharide; method of preparing said composition; use as an additive for an aqueous cellulosic suspension; procedure for producing paper; and paper.
JP5341449B2 (en) * 2008-09-25 2013-11-13 株式会社ピーアイシステム Facility navigation system
ES2700776T3 (en) 2013-08-23 2019-02-19 Akzo Nobel Chemicals Int Bv Silica sol
CN105417666A (en) * 2015-11-24 2016-03-23 宜兴市丰烨化学有限公司 Acrylamide and glutaraldehyde flocculating agent and preparation method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3867304A (en) * 1967-06-12 1975-02-18 Nalco Chemical Co Acidic stable salt-free silica sols
US4054536A (en) * 1974-12-23 1977-10-18 Nalco Chemical Company Preparation of aqueous silica sols free of alkali metal oxides

Also Published As

Publication number Publication date
WO1995023021A1 (en) 1995-08-31
TW282504B (en) 1996-08-01
AU1906295A (en) 1995-09-11
SE9400690L (en) 1995-08-29
ZA951466B (en) 1995-12-08
SE502464C2 (en) 1995-10-23

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Legal Events

Date Code Title Description
NUG Patent has lapsed