IT970152B - Procedimento per preparare parti celle sferiche porose di si02 - Google Patents

Procedimento per preparare parti celle sferiche porose di si02

Info

Publication number
IT970152B
IT970152B IT31214/72A IT3121472A IT970152B IT 970152 B IT970152 B IT 970152B IT 31214/72 A IT31214/72 A IT 31214/72A IT 3121472 A IT3121472 A IT 3121472A IT 970152 B IT970152 B IT 970152B
Authority
IT
Italy
Prior art keywords
preparing
procedure
porous spherical
cell parts
spherical cell
Prior art date
Application number
IT31214/72A
Other languages
English (en)
Original Assignee
Istvan H
Imrich S
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 Istvan H, Imrich S filed Critical Istvan H
Application granted granted Critical
Publication of IT970152B publication Critical patent/IT970152B/it

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
    • 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
    • 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
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/08—Silica
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S516/00—Colloid systems and wetting agents; subcombinations thereof; processes of
    • Y10S516/922—Colloid systems having specified particle size, range, or distribution, e.g. bimodal particle distribution

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Silicon Compounds (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
IT31214/72A 1971-11-05 1972-11-02 Procedimento per preparare parti celle sferiche porose di si02 IT970152B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712155045 DE2155045B2 (de) 1971-11-05 1971-11-05 Verfahren zur herstellung von kugelfoermigen poroesen sio tief 2-teilchen

Publications (1)

Publication Number Publication Date
IT970152B true IT970152B (it) 1974-04-10

Family

ID=5824310

Family Applications (1)

Application Number Title Priority Date Filing Date
IT31214/72A IT970152B (it) 1971-11-05 1972-11-02 Procedimento per preparare parti celle sferiche porose di si02

Country Status (10)

Country Link
US (1) US3857924A (it)
JP (1) JPS4861396A (it)
BE (1) BE790908A (it)
CA (1) CA982107A (it)
DE (1) DE2155045B2 (it)
FR (1) FR2158512B1 (it)
GB (1) GB1415529A (it)
IT (1) IT970152B (it)
LU (1) LU66411A1 (it)
NL (1) NL7214880A (it)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51115298A (en) * 1975-04-03 1976-10-09 Agency Of Ind Science & Technol Process for production of spherical silica gel
US4011096A (en) * 1975-06-10 1977-03-08 E. I. Du Pont De Nemours And Company Vesiculated silica microspheres
GB8511048D0 (en) * 1985-05-01 1985-06-12 Unilever Plc Inorganic structures
CA1271307A (en) * 1985-06-27 1990-07-10 Iwao Ohshima Process for manufacturing high purity silica
US4874518A (en) * 1985-11-01 1989-10-17 E. I. Du Pont De Nemours And Company Porous silica microspheres having a silanol enriched surface
US5108595A (en) * 1985-11-01 1992-04-28 E. I. Du Pont De Nemours And Company Porous silica microspheres having silanol-enriched and silanized surfaces
US5032266A (en) * 1985-11-01 1991-07-16 E. I. Du Pont De Nemours And Company Porous silica microspheres having silanol-enriched and silanized surfaces
JPH0796447B2 (ja) * 1986-06-13 1995-10-18 モ−ゼス レイク インダストリ−ズ インコ−ポレイテツド 高純度シリカの製造方法
GB2199541A (en) * 1986-10-16 1988-07-13 Rig Design Services Production of engineering drawings
US4837195A (en) * 1986-12-23 1989-06-06 E. I. Du Pont De Nemours And Company Process for porosity control and rehydroxylations of silica bodies
US5028407A (en) * 1990-01-25 1991-07-02 International Minerals & Chemical Corp. Method of production of high purity fusible silica
US5480582A (en) * 1993-06-30 1996-01-02 Pope; Edward J. A. Process for synthesizing amorphous silica microspheres with fluorescence behavior
US6132618A (en) * 1998-04-16 2000-10-17 Pq Corporation System and method for waking a computer having a plurality of power resources from a system state using a data structure
US6063344A (en) * 1999-06-01 2000-05-16 Occidental Chemical Corporation Removing anions from alkaline silicate solutions
US20100003204A1 (en) * 2008-07-02 2010-01-07 Energy Materials Corporation Nanoparticle hybrid sunscreens
CN111204766A (zh) * 2020-02-04 2020-05-29 河南理工大学 一种制备发光多孔硅粉的方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB585538A (en) * 1945-02-07 1947-02-11 Standard Oil Dev Co An improved manufacture of gel particles
US2921839A (en) * 1955-12-23 1960-01-19 Columbia Southern Chem Corp Silica precipitation method
GB908614A (en) * 1960-01-05 1962-10-24 Nalco Chemical Co Method of treating aqueous silica sols
FR1381856A (fr) * 1964-02-05 1964-12-14 Monsanto Chemicals Procédé d'échange d'ions
DE1592279A1 (de) * 1966-04-05 1970-12-03 Coswig Chemiewerk Veb Verfahren zur Herstellung von Kieselgel hoher Reinheit mit Hilfe von Ionenaustauschern

Also Published As

Publication number Publication date
GB1415529A (en) 1975-11-26
US3857924A (en) 1974-12-31
FR2158512B1 (it) 1977-12-23
JPS4861396A (it) 1973-08-28
DE2155045B2 (de) 1976-05-06
CA982107A (en) 1976-01-20
BE790908A (fr) 1973-03-01
FR2158512A1 (it) 1973-06-15
NL7214880A (it) 1973-05-08
DE2155045A1 (de) 1973-05-10
LU66411A1 (it) 1973-02-01

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