GB1352830A - Production of silica microspheres - Google Patents

Production of silica microspheres

Info

Publication number
GB1352830A
GB1352830A GB1352830DA GB1352830A GB 1352830 A GB1352830 A GB 1352830A GB 1352830D A GB1352830D A GB 1352830DA GB 1352830 A GB1352830 A GB 1352830A
Authority
GB
United Kingdom
Prior art keywords
droplets
hydrosol
sol
water
microspheres
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
Other languages
English (en)
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority claimed from GB3862970A external-priority patent/GB1304105A/en
Publication of GB1352830A publication Critical patent/GB1352830A/en
Expired legal-status Critical Current

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
    • C01B33/152—Preparation of hydrogels
    • C01B33/154—Preparation of hydrogels by acidic treatment of aqueous silicate solutions
    • C01B33/1546—Preparation of hydrogels by acidic treatment of aqueous silicate solutions the first formed hydrosol being converted to a hydrogel by introduction into an organic medium immiscible or only partly miscible with water
    • 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
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/08—Silica

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Silicon Compounds (AREA)
GB1352830D 1970-08-11 1970-08-11 Production of silica microspheres Expired GB1352830A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3862970A GB1304105A (https=) 1969-05-02 1970-08-11

Publications (1)

Publication Number Publication Date
GB1352830A true GB1352830A (en) 1974-05-15

Family

ID=10404704

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1352830D Expired GB1352830A (en) 1970-08-11 1970-08-11 Production of silica microspheres

Country Status (5)

Country Link
BE (1) BE771016A (https=)
DE (1) DE2140344A1 (https=)
FR (1) FR2104191A5 (https=)
GB (1) GB1352830A (https=)
NL (1) NL7110985A (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2520220A1 (de) * 1975-05-07 1976-11-25 Basf Ag Verfahren zur herstellung von silikatischen schaumstoffpartikeln
IT1136857B (it) * 1981-03-06 1986-09-03 Agip Nucleare Spa Procedimento per la produzione di particelle di gel mediante atomizzazione e gelificazione ed apparecchiatura per l'attuazione di detto procedimento

Also Published As

Publication number Publication date
DE2140344A1 (de) 1972-02-17
NL7110985A (https=) 1972-02-15
FR2104191A5 (https=) 1972-04-14
BE771016A (fr) 1972-02-07

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees