CA2186512A1 - Compositions comprising fused particulates and methods of making them - Google Patents

Compositions comprising fused particulates and methods of making them

Info

Publication number
CA2186512A1
CA2186512A1 CA002186512A CA2186512A CA2186512A1 CA 2186512 A1 CA2186512 A1 CA 2186512A1 CA 002186512 A CA002186512 A CA 002186512A CA 2186512 A CA2186512 A CA 2186512A CA 2186512 A1 CA2186512 A1 CA 2186512A1
Authority
CA
Canada
Prior art keywords
particles
generally ellipsoidal
compositions
feldspar
feed
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.)
Granted
Application number
CA002186512A
Other languages
French (fr)
Other versions
CA2186512C (en
Inventor
Richard B. Castle
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.)
3M Co
Original Assignee
Richard B. Castle
Minnesota Mining And Manufacturing Company
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 Richard B. Castle, Minnesota Mining And Manufacturing Company filed Critical Richard B. Castle
Publication of CA2186512A1 publication Critical patent/CA2186512A1/en
Application granted granted Critical
Publication of CA2186512C publication Critical patent/CA2186512C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/10—Forming beads
    • C03B19/108—Forming porous, sintered or foamed beads
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/10—Forming beads
    • C03B19/1005—Forming solid beads
    • C03B19/102—Forming solid beads by blowing a gas onto a stream of molten glass or onto particulate materials, e.g. pulverising
    • C03B19/1025—Bead furnaces or burners
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C12/00—Powdered glass; Bead compositions
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

Abstract

The disclosure describes a method for producing bulk, particulate material that includes solid, generally ellipsoidal particles by dispersing irregularly shaped feed particles including about 60 to 100 % by weight of at least one silicate-containing material selected from among wollastonite, alkali feldspar, plagioclase feldspar and nepheline. While maintaining the feed particles in dispersion, they are heated sufficiently to bring about at least partial fusion within at least the surfaces of the particles. This produces a bulk particulate product of which about 15 to 100 % by volume is generally ellipsoidal particles. Also described are compositions of matter including solid particles, at least a portion of which are substantially glassy and generally ellipsoidal. At least a portion of these particles have been respectively formed from feed particles composed substantially of at least one silicate selected from among wollastonite, alkali feldspar, plagioclase feldspar and nepheline. The bulk particulate compositions contain about 15 to 100 % by volume of the substantially glassy, generally ellipsoidal particles that are products of at least partial fusion of such feed particles.
CA002186512A 1994-04-25 1995-04-24 Compositions comprising fused particulates and methods of making them Expired - Fee Related CA2186512C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US23193794A 1994-04-25 1994-04-25
US08/231937 1994-04-25
PCT/US1995/004985 WO1995029134A1 (en) 1994-04-25 1995-04-24 Compositions comprising fused particulates and methods of making them

Publications (2)

Publication Number Publication Date
CA2186512A1 true CA2186512A1 (en) 1995-11-02
CA2186512C CA2186512C (en) 2007-01-16

Family

ID=22871234

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002186512A Expired - Fee Related CA2186512C (en) 1994-04-25 1995-04-24 Compositions comprising fused particulates and methods of making them

Country Status (10)

Country Link
US (3) US5559170A (en)
EP (1) EP0757664B1 (en)
JP (1) JPH09512781A (en)
KR (1) KR970702827A (en)
AU (1) AU701603B2 (en)
CA (1) CA2186512C (en)
DE (1) DE69501734T2 (en)
FI (1) FI964254A (en)
NO (1) NO964503D0 (en)
WO (1) WO1995029134A1 (en)

Cited By (1)

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CN107262268A (en) * 2017-08-09 2017-10-20 四川南江新兴矿业有限公司 Nepheline ore-sorting system and method

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Cited By (1)

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CN107262268A (en) * 2017-08-09 2017-10-20 四川南江新兴矿业有限公司 Nepheline ore-sorting system and method

Also Published As

Publication number Publication date
NO964503L (en) 1996-10-23
JPH09512781A (en) 1997-12-22
US5883029A (en) 1999-03-16
EP0757664B1 (en) 1998-03-04
US5641717A (en) 1997-06-24
FI964254A0 (en) 1996-10-22
DE69501734D1 (en) 1998-04-09
EP0757664A1 (en) 1997-02-12
US5559170A (en) 1996-09-24
NO964503D0 (en) 1996-10-23
AU701603B2 (en) 1999-02-04
KR970702827A (en) 1997-06-10
DE69501734T2 (en) 1998-10-15
AU2361995A (en) 1995-11-16
CA2186512C (en) 2007-01-16
FI964254A (en) 1996-10-22
WO1995029134A1 (en) 1995-11-02

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