GB1141924A - Silica beads - Google Patents

Silica beads

Info

Publication number
GB1141924A
GB1141924A GB1671666A GB1671666A GB1141924A GB 1141924 A GB1141924 A GB 1141924A GB 1671666 A GB1671666 A GB 1671666A GB 1671666 A GB1671666 A GB 1671666A GB 1141924 A GB1141924 A GB 1141924A
Authority
GB
United Kingdom
Prior art keywords
per litre
mixture
silica beads
compound
moles
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB1671666A
Inventor
Gordon Owen Shipton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OI Glass Inc
Original Assignee
Owens Illinois Inc
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 Owens Illinois Inc filed Critical Owens Illinois Inc
Priority to GB1671666A priority Critical patent/GB1141924A/en
Publication of GB1141924A publication Critical patent/GB1141924A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
    • B01J2/06—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a liquid medium
    • B01J2/08—Gelation of a colloidal solution
    • 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
    • C01B33/152—Preparation of hydrogels
    • C01B33/154—Preparation of hydrogels by acidic treatment of aqueous silicate solutions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

1,141,924. Silica beads. OWENS-ILLINOIS Inc. 15 April, 1966, No. 16716/66. Heading C1A. Spherical silica beads (e.g. diameter 1Á- 1-5 mm.) are prepared by agitating a single aq. phase mixture of (a) a compound xM 2 oySiO 2 , wherein M is an alkali metal and x/y is greater than 0À24, in a concentration equivalent to 50-800 m.moles SiO 2 per litre (b) (2N + A) m. equivs. of acid per litre where N is the number of m.moles of M 2 O per litre and A is 0 to 4000 (the reactant concentrations being expressed as theoretical concentrations before reaction), and (c) from 1 to 150 g./l. of a water soluble emulsifying agent at a temperature between 80‹ C. below the b.p. of the mixture up to its b.p. at the prevailing pressure for from 1 minute to 12 hours. Preferably (a) is a sodium silicate, e.g. Na 2 O 3À36 SiO 2 , (b) may be H 2 SO 4 , HNO 3 , HCl, acetic, oxalic or benzenesulphonic acid, and (c) may be an emulsifier which is non ionic, cationic or anionic but the nonylphenylether of polyethylene glycol is preferred. A compound of Al and O (e.g. kaolin) may also be added to the mixture in amounts up to 10g Neutral salts such as NaCl may also be included.
GB1671666A 1966-04-15 1966-04-15 Silica beads Expired GB1141924A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1671666A GB1141924A (en) 1966-04-15 1966-04-15 Silica beads

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1671666A GB1141924A (en) 1966-04-15 1966-04-15 Silica beads

Publications (1)

Publication Number Publication Date
GB1141924A true GB1141924A (en) 1969-02-05

Family

ID=10082367

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1671666A Expired GB1141924A (en) 1966-04-15 1966-04-15 Silica beads

Country Status (1)

Country Link
GB (1) GB1141924A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6648958B2 (en) 1998-09-14 2003-11-18 Merck Patent Gesellschaft Highly light-scattering pigment mixture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6648958B2 (en) 1998-09-14 2003-11-18 Merck Patent Gesellschaft Highly light-scattering pigment mixture

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