GB1371452A - Method of making coarse silica - Google Patents

Method of making coarse silica

Info

Publication number
GB1371452A
GB1371452A GB2928272A GB2928272A GB1371452A GB 1371452 A GB1371452 A GB 1371452A GB 2928272 A GB2928272 A GB 2928272A GB 2928272 A GB2928272 A GB 2928272A GB 1371452 A GB1371452 A GB 1371452A
Authority
GB
United Kingdom
Prior art keywords
solution
formic
june
acetic
aggregates
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
GB2928272A
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.)
WR Grace and Co Conn
WR Grace and Co
Original Assignee
WR Grace and Co Conn
WR Grace and Co
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 WR Grace and Co Conn, WR Grace and Co filed Critical WR Grace and Co Conn
Publication of GB1371452A publication Critical patent/GB1371452A/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
    • C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
    • C01B33/187—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates
    • C01B33/193—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof 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
    • C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
    • 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
    • C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
    • C01B33/187—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/50—Agglomerated particles
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/14—Pore volume
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Silicon Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1371452 Coarse silica aggregates W R GRACE & CO 22 June 1972 [23 June 1971] 29282/72 Heading C1A Particulate silica aggregates of primary particle size 200-500 mÁ are made by either (1) mixing an alkalimetal silicate aqueous solution with an ammoniated aqueous solution of formic, acetic, propionic or carbonic acid at a pH of 9À9 to 11 or (2) mixing the silicate solution, ammoniated to a pH of from 10-11À5 with a solution of formic, acetic or propionic acid in an alcohol so as to produce said aggregates which may be washed, dried and deaggregated in a fluid energy mill. Preferred alcohols for use in process (2) above are ethanol, a propanol, a butanol, a pentanol or a hexanol.
GB2928272A 1971-06-23 1972-06-22 Method of making coarse silica Expired GB1371452A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15608871A 1971-06-23 1971-06-23

Publications (1)

Publication Number Publication Date
GB1371452A true GB1371452A (en) 1974-10-23

Family

ID=22558043

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2928272A Expired GB1371452A (en) 1971-06-23 1972-06-22 Method of making coarse silica

Country Status (5)

Country Link
CA (1) CA963605A (en)
DE (1) DE2230106A1 (en)
FR (1) FR2143242A1 (en)
GB (1) GB1371452A (en)
IT (1) IT959885B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4564556A (en) * 1984-09-24 1986-01-14 Minnesota Mining And Manufacturing Company Transparent non-vitreous ceramic particulate
FR3050195A1 (en) * 2016-04-14 2017-10-20 Francois Parmentier PROCESS FOR THE SYNTHESIS OF A MINERAL OXIDE USING A WATER-INSOLUBLE ORGANIC ACID

Also Published As

Publication number Publication date
DE2230106A1 (en) 1973-01-11
IT959885B (en) 1973-11-10
FR2143242A1 (en) 1973-02-02
CA963605A (en) 1975-03-04

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee