CA952286A - Process for producing finely divided silica having reducing properties - Google Patents

Process for producing finely divided silica having reducing properties

Info

Publication number
CA952286A
CA952286A CA087,100A CA87100A CA952286A CA 952286 A CA952286 A CA 952286A CA 87100 A CA87100 A CA 87100A CA 952286 A CA952286 A CA 952286A
Authority
CA
Canada
Prior art keywords
finely divided
divided silica
reducing properties
producing finely
producing
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
CA087,100A
Inventor
Alfred Illigen
Walter Neugebauer
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.)
Evonik Operations GmbH
Original Assignee
Deutsche Gold und Silber Scheideanstalt
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 Deutsche Gold und Silber Scheideanstalt filed Critical Deutsche Gold und Silber Scheideanstalt
Application granted granted Critical
Publication of CA952286A publication Critical patent/CA952286A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • C01B33/181—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process
    • C01B33/182—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process by reduction of a siliceous material, e.g. with a carbonaceous reducing agent and subsequent oxidation of the silicon monoxide formed
    • 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
    • C01B33/186—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof from or via fluosilicic acid or salts thereof by a wet process
    • 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
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • 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
    • C01P2006/11—Powder tap density
    • 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
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • 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
CA087,100A 1969-07-01 1970-07-02 Process for producing finely divided silica having reducing properties Expired CA952286A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691933292 DE1933292C3 (en) 1969-07-01 1969-07-01 Process for the production of finely divided silica with reducing properties

Publications (1)

Publication Number Publication Date
CA952286A true CA952286A (en) 1974-08-06

Family

ID=5738513

Family Applications (1)

Application Number Title Priority Date Filing Date
CA087,100A Expired CA952286A (en) 1969-07-01 1970-07-02 Process for producing finely divided silica having reducing properties

Country Status (6)

Country Link
CA (1) CA952286A (en)
CH (1) CH542788A (en)
DE (1) DE1933292C3 (en)
FR (1) FR2056387A5 (en)
NO (1) NO130822C (en)
SE (1) SE364696B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014008998A1 (en) 2013-12-17 2015-06-18 Kingspan Gefinex Gmbh Floor construction with edge insulation strips
DE102014014503A1 (en) 2013-12-17 2015-06-18 Kingspan Gefinex Gmbh Floor construction with expansion joint strip

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2535659A (en) * 1947-04-01 1950-12-26 Shell Dev Amorphous silica and process for making same
DE1072601B (en) * 1954-05-28 1960-01-07 The B. F. Goodrich Company, New York, N. Y. (V. St. A.) Process for the oxidation of brown, condensed, solid silicon monoxide
DE1062228B (en) * 1958-05-31 1959-07-30 Wacker Chemie Gmbh Process for the production of hydrogenated silica
US3068089A (en) * 1959-05-20 1962-12-11 Cabot Corp Process and apparatus for the production of finely-divided pigments
GB1255498A (en) * 1968-08-13 1971-12-01 Monsanto Chemicals Production of finely divided silica

Also Published As

Publication number Publication date
NO130822C (en) 1975-02-19
FR2056387A5 (en) 1971-05-14
DE1933292A1 (en) 1971-02-11
DE1933292B2 (en) 1981-04-09
SE364696B (en) 1974-03-04
DE1933292C3 (en) 1982-04-29
CH542788A (en) 1973-10-15
NO130822B (en) 1974-11-11

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