GB2382073A - Kaolin products and their production - Google Patents

Kaolin products and their production

Info

Publication number
GB2382073A
GB2382073A GB0302204A GB0302204A GB2382073A GB 2382073 A GB2382073 A GB 2382073A GB 0302204 A GB0302204 A GB 0302204A GB 0302204 A GB0302204 A GB 0302204A GB 2382073 A GB2382073 A GB 2382073A
Authority
GB
United Kingdom
Prior art keywords
kaolin
suspension
particle size
weight
aqueous
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
GB0302204A
Other versions
GB2382073B (en
GB0302204D0 (en
Inventor
Philip Kenneth Johns
David Leslie Light
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.)
Imerys Minerals Ltd
Original Assignee
Imerys Minerals Ltd
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 Imerys Minerals Ltd filed Critical Imerys Minerals Ltd
Publication of GB0302204D0 publication Critical patent/GB0302204D0/en
Publication of GB2382073A publication Critical patent/GB2382073A/en
Application granted granted Critical
Publication of GB2382073B publication Critical patent/GB2382073B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/40—Compounds of aluminium
    • C09C1/42—Clays
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • 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
    • C01P2004/61—Micrometer sized, i.e. from 1-100 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
    • C01P2004/62—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
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]

Abstract

A method of producing a kaolin particulate material suitable for use as improved SC filler includes the steps of: (a) preparing an aqueous feed suspension of kaolin; (b) treating the kaolin of the feed suspension by attrition grinding in a grinding vessel using grinding media granules; (c) delivering an aqueous suspension of the kaolin ground in step (b) to a particle size classifier and separating the kaolin of the suspension into a coarse fraction and a fine fraction; (d) returning an aqueous suspension of the coarse fraction produced in step (c) to the grinding vessel to be further attrition ground; and (e) extracting an aqueous suspension of the fine fraction produced in step (c) as a product suspension; wherein the kaolin of the feed suspension in step (a) is such that not more than 30 % by weight has a particle size less than 2 žm and not more than 30 % by weight has a particle size greater than 10 žm and wherein the kaolin of the product suspension produced in step (e) is such that not more than 10 % by weight has a particle size greater than 10 žm and not more than 10 % by weight has a particle size less than 0.25 žm.
GB0302204A 2000-08-17 2001-08-17 Kaolin products and their production Expired - Fee Related GB2382073B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0020180.6A GB0020180D0 (en) 2000-08-17 2000-08-17 Kaolin products and their production
PCT/GB2001/003717 WO2002016511A1 (en) 2000-08-17 2001-08-17 Kaolin products and their production

Publications (3)

Publication Number Publication Date
GB0302204D0 GB0302204D0 (en) 2003-03-05
GB2382073A true GB2382073A (en) 2003-05-21
GB2382073B GB2382073B (en) 2005-03-30

Family

ID=9897728

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0020180.6A Ceased GB0020180D0 (en) 2000-08-17 2000-08-17 Kaolin products and their production
GB0302204A Expired - Fee Related GB2382073B (en) 2000-08-17 2001-08-17 Kaolin products and their production

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0020180.6A Ceased GB0020180D0 (en) 2000-08-17 2000-08-17 Kaolin products and their production

Country Status (5)

Country Link
US (2) US7442281B2 (en)
AU (1) AU2001284163A1 (en)
BR (1) BR0113226A (en)
GB (2) GB0020180D0 (en)
WO (1) WO2002016511A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1490428A1 (en) * 2002-03-28 2004-12-29 Imerys Minerals Limited Flame retardant polymer compositions comprising a particulate clay mineral
AU2003207551A1 (en) * 2002-05-03 2003-11-17 David O. Cummings Paper coating pigments
GB0219256D0 (en) * 2002-08-16 2002-09-25 Imerys Rio Capim Caulim S A Kaolin pigment products
US8114915B2 (en) * 2008-12-05 2012-02-14 Exxonmobil Research And Engineering Company Method and system for handling slurries of varying liquid rates and solids content
US8119014B2 (en) * 2008-12-23 2012-02-21 Exxonmobil Research And Engineering Company Systems and methods to remove liquid product and fines from a slurry reactor
GB201218125D0 (en) * 2012-10-10 2012-11-21 Imerys Minerals Ltd Method for grinding a particulate inorganic material
US8967383B1 (en) 2012-10-19 2015-03-03 KaMin, LLC Processes for producing high-brightness kaolin in high yields, and kaolin materials produced therefrom
EP3483221B1 (en) 2014-09-01 2020-07-01 Imertech Sas Talc particulate and uses thereof

Citations (4)

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AU2001284163A1 (en) 2002-03-04
BR0113226A (en) 2003-07-08
US20040250973A1 (en) 2004-12-16
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US7442281B2 (en) 2008-10-28
US20090065163A1 (en) 2009-03-12
GB0302204D0 (en) 2003-03-05

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