FR2349540B1 - - Google Patents

Info

Publication number
FR2349540B1
FR2349540B1 FR7712458A FR7712458A FR2349540B1 FR 2349540 B1 FR2349540 B1 FR 2349540B1 FR 7712458 A FR7712458 A FR 7712458A FR 7712458 A FR7712458 A FR 7712458A FR 2349540 B1 FR2349540 B1 FR 2349540B1
Authority
FR
France
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
FR7712458A
Other versions
FR2349540A1 (fr
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.)
Elkem ASA
Original Assignee
Elkem Spigerverket AS
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 Elkem Spigerverket AS filed Critical Elkem Spigerverket AS
Publication of FR2349540A1 publication Critical patent/FR2349540A1/fr
Application granted granted Critical
Publication of FR2349540B1 publication Critical patent/FR2349540B1/fr
Granted 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
    • 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
    • B01J2/12—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic in rotating drums
    • 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
    • C01B33/02—Silicon
    • C01B33/021—Preparation
    • C01B33/023—Preparation by reduction of silica or free silica-containing material
    • C01B33/025—Preparation by reduction of silica or free silica-containing material with carbon or a solid carbonaceous material, i.e. carbo-thermal process
FR7712458A 1976-04-27 1977-04-25 Procede pour l'augmentation du poids volumique de la poudre de silice Granted FR2349540A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO761434A NO761434L (no) 1976-04-27 1976-04-27 Fremgangsm}te for ¦kning av volumvekten av silikast¦v

Publications (2)

Publication Number Publication Date
FR2349540A1 FR2349540A1 (fr) 1977-11-25
FR2349540B1 true FR2349540B1 (fr) 1980-01-18

Family

ID=19882873

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7712458A Granted FR2349540A1 (fr) 1976-04-27 1977-04-25 Procede pour l'augmentation du poids volumique de la poudre de silice

Country Status (24)

Country Link
US (1) US4126423A (fr)
JP (1) JPS52131996A (fr)
AR (1) AR213201A1 (fr)
AU (1) AU514157B2 (fr)
BE (1) BE853610A (fr)
BR (1) BR7702616A (fr)
CA (1) CA1097033A (fr)
CH (1) CH631137A5 (fr)
CS (1) CS207452B1 (fr)
DE (1) DE2717893C3 (fr)
EG (1) EG12489A (fr)
ES (1) ES458186A1 (fr)
FI (1) FI771301A (fr)
FR (1) FR2349540A1 (fr)
HU (1) HU177304B (fr)
IN (1) IN145511B (fr)
IT (1) IT1075348B (fr)
NO (1) NO761434L (fr)
PH (1) PH13500A (fr)
PL (1) PL117263B1 (fr)
PT (1) PT66404B (fr)
RO (1) RO72327A (fr)
SE (1) SE7704588L (fr)
ZA (1) ZA772005B (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4248600A (en) * 1978-05-30 1981-02-03 J. M. Huber Corporation High solids aqueous silica dispersion
DE2844459A1 (de) * 1978-10-12 1980-04-24 Wacker Chemie Gmbh Verfahren zum erhoehen des schuettgewichts von siliciumdioxyd und eine verwendung des erfindungsgemaess behandelten siliciumdioxyds
US5275652A (en) * 1982-12-07 1994-01-04 Elkem Materials Inc. Concrete additive comprising a multicomponent admixture containing silica fume, its method of manufacture and concrete produced therewith
JPH0639343B2 (ja) * 1986-03-03 1994-05-25 電気化学工業株式会社 シリカ質微粉末造粒品
DE3741846A1 (de) * 1987-02-26 1989-01-26 Degussa Verfahren zum verdichten von pyrogen hergestellter kieselsaeure
GB8904273D0 (en) * 1989-02-24 1989-04-12 Sandoz Ltd Improvements in or relating to chemical compounds
US5393507A (en) * 1990-03-01 1995-02-28 Unilever Patent Holdings B.V. Silicate products
US5286470A (en) * 1990-03-01 1994-02-15 Unilever Patent Holdings B.V. Silicate products
US5160470A (en) * 1992-05-20 1992-11-03 Dow Corning Corporation Method for compacting silica fume
DE4415362A1 (de) * 1994-05-02 1995-11-09 Henkel Kgaa Verfahren zur Herstellung silikatischer Buildergranulate mit erhöhtem Schüttgewicht
US6156285A (en) * 1998-11-12 2000-12-05 Dow Corning Corporation Method for densifying particulate silica
DE10129673C1 (de) * 2001-06-20 2003-03-20 Bayer Ag Einbauten in eine Vorrichtung zum Lackieren von stückigen Produkten
US7156174B2 (en) 2004-01-30 2007-01-02 Halliburton Energy Services, Inc. Contained micro-particles for use in well bore operations

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1684006A (en) * 1920-10-04 1928-09-11 Bethlehem Steel Corp Treatment of ores
US2411873A (en) * 1944-06-15 1946-12-03 Erie Mining Co Process of molding balls
DE1567440B1 (de) * 1965-04-29 1971-02-25 Degussa Kugelfoermiges kieselsaeuregranulat
DE1567490C3 (de) * 1966-08-05 1973-12-13 Elektroschmelzwerk Kempten Gmbh, 8000 Muenchen Verfahren zur Herstellung von feinverteiltem Sihciumdioxyd
FR1544156A (fr) * 1967-09-20 1968-10-31 Pechiney Saint Gobain Corps agglomérés siliceux
US3645684A (en) * 1970-07-01 1972-02-29 Cities Service Co Fractionation of silica aerosols
ZA722159B (en) * 1971-04-26 1973-11-28 Elkem As Method of treating sio2-dust

Also Published As

Publication number Publication date
AR213201A1 (es) 1978-12-29
BE853610A (fr) 1977-08-01
ZA772005B (en) 1978-11-29
CH631137A5 (de) 1982-07-30
IT1075348B (it) 1985-04-22
NO761434L (no) 1977-10-28
EG12489A (en) 1979-03-31
FI771301A (fr) 1977-10-28
DE2717893C3 (de) 1979-06-21
PT66404B (en) 1978-09-13
JPS5525128B2 (fr) 1980-07-03
SE7704588L (sv) 1977-10-28
DE2717893A1 (de) 1977-11-03
FR2349540A1 (fr) 1977-11-25
BR7702616A (pt) 1978-05-16
AU514157B2 (en) 1981-01-29
IN145511B (fr) 1978-10-28
PL117263B1 (en) 1981-07-31
CA1097033A (fr) 1981-03-10
PT66404A (en) 1977-05-01
US4126423A (en) 1978-11-21
ES458186A1 (es) 1978-06-01
HU177304B (en) 1981-09-28
CS207452B1 (en) 1981-07-31
AU2456477A (en) 1978-11-02
RO72327A (fr) 1981-05-15
JPS52131996A (en) 1977-11-05
PH13500A (en) 1980-05-23
DE2717893B2 (de) 1978-10-26

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse