AU1891088A - Method of producing fine particles - Google Patents

Method of producing fine particles

Info

Publication number
AU1891088A
AU1891088A AU18910/88A AU1891088A AU1891088A AU 1891088 A AU1891088 A AU 1891088A AU 18910/88 A AU18910/88 A AU 18910/88A AU 1891088 A AU1891088 A AU 1891088A AU 1891088 A AU1891088 A AU 1891088A
Authority
AU
Australia
Prior art keywords
particle size
particles
classification device
fine
fraction
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
AU18910/88A
Other versions
AU605886B2 (en
Inventor
Herbert Frank Askew
Stephen Clifford Brown
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.)
Rio Tinto Alcan International Ltd
Original Assignee
Alcan International Ltd Canada
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 Alcan International Ltd Canada filed Critical Alcan International Ltd Canada
Publication of AU1891088A publication Critical patent/AU1891088A/en
Application granted granted Critical
Publication of AU605886B2 publication Critical patent/AU605886B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/36—Adding fluid, other than for crushing or disintegrating by fluid energy the crushing or disintegrating zone being submerged in liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00—Disintegrating plant with or without drying of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
    • B02C23/12—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Crushing And Grinding (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Glanulating (AREA)
  • Cyclones (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

This invention relates to a method of reducing the particle size of solid particles and is applicable to the production of very fine particles of a wide variety of solids, includuing relatively hard solids. The method comprises milling a liquid suspension of solid particles in an agitated media mill (13), pumping the milled suspension through a particle size classification device (16) to separate the slurry into a coarse fraction (17) and a fine fraction (18), the particles of the coarse fraction having a greater median particle size than the particles of the fine fraction, recycling the coarse fraction (17) from the particle size classification device to the input of the mill (13), and recycling the fine fraction (18) by pumping (15) it to the classification device, wherein recycling of both coarse and fine fractions are continued until solid particles of the desired reduced particle size are produced. Preferably a single classification device and a single mill can be used, and particles having a median particle size of 0.3 microns or less and a relatively narrow particle size distribution can be produced, even using a hydrocyclone as the classification device.
AU18910/88A 1987-07-09 1988-07-08 Method of producing fine particles Ceased AU605886B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB878716213A GB8716213D0 (en) 1987-07-09 1987-07-09 Producing fine particles
GB8716213 1987-07-09

Publications (2)

Publication Number Publication Date
AU1891088A true AU1891088A (en) 1989-01-12
AU605886B2 AU605886B2 (en) 1991-01-24

Family

ID=10620393

Family Applications (1)

Application Number Title Priority Date Filing Date
AU18910/88A Ceased AU605886B2 (en) 1987-07-09 1988-07-08 Method of producing fine particles

Country Status (12)

Country Link
EP (1) EP0298777B1 (en)
JP (1) JPH01104354A (en)
AT (1) ATE77974T1 (en)
AU (1) AU605886B2 (en)
BR (1) BR8803484A (en)
CA (1) CA1323015C (en)
DE (1) DE3872610T2 (en)
GB (1) GB8716213D0 (en)
IE (1) IE61937B1 (en)
IN (1) IN171515B (en)
NO (1) NO174282C (en)
ZA (1) ZA884970B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU604595B2 (en) * 1988-01-28 1990-12-20 Kubota Ltd. Method and apparatus for pulverizing particulate material

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5171631A (en) * 1990-07-19 1992-12-15 Aluminum Company Of America Spacer/extender for titanium dioxide in pigment systems for coatings
CN100512967C (en) * 2003-06-17 2009-07-15 王旭宁 Crushing and grinding unit, and soybean milk maker, and preparing method
JP4703126B2 (en) * 2004-03-29 2011-06-15 太平洋セメント株式会社 Hydrogen storage material manufacturing apparatus and hydrogen storage material manufacturing method
JP5058037B2 (en) * 2008-03-17 2012-10-24 Ｊｆｅスチール株式会社 Method for producing carbon monoxide adsorbent
SG170634A1 (en) * 2009-10-20 2011-05-30 Musse Singapore Pte Ltd An apparatus and method for size reduction
TR201904225A2 (en) 2019-03-21 2019-07-22 Kaleseramik Canakkale Kalebodur Seramik Sanayi Anonim Sirketi A MILLING SYSTEM AND METHOD AND A RELATED CERAMIC PRODUCTION METHOD

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL103261C (en) * 1954-12-17
CH505651A (en) * 1968-03-21 1971-04-15 Escher Wyss Ag Device for grinding and sifting a granular material, in particular cement
US3887142A (en) * 1973-06-21 1975-06-03 Richard E Mcelvain Ore grinding circuit
DE3334235A1 (en) * 1982-11-04 1984-05-10 Heinz 4630 Bochum Jäger Process and apparatus for the energy-saving production of a fine material, especially cement
GB8617387D0 (en) * 1986-07-16 1986-08-20 Alcan Int Ltd Alumina hydrates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU604595B2 (en) * 1988-01-28 1990-12-20 Kubota Ltd. Method and apparatus for pulverizing particulate material

Also Published As

Publication number Publication date
DE3872610T2 (en) 1993-02-18
JPH01104354A (en) 1989-04-21
GB8716213D0 (en) 1987-08-12
NO174282C (en) 1994-04-13
IE882089L (en) 1989-01-09
DE3872610D1 (en) 1992-08-13
EP0298777A2 (en) 1989-01-11
EP0298777A3 (en) 1990-02-07
AU605886B2 (en) 1991-01-24
CA1323015C (en) 1993-10-12
NO883051D0 (en) 1988-07-08
IE61937B1 (en) 1994-11-30
NO174282B (en) 1994-01-03
BR8803484A (en) 1989-01-31
NO883051L (en) 1989-01-10
IN171515B (en) 1992-10-31
EP0298777B1 (en) 1992-07-08
ZA884970B (en) 1989-03-29
ATE77974T1 (en) 1992-07-15

Similar Documents

Publication Publication Date Title
IN188944B (en)
IN169936B (en)
JPH0711268A (en) Production of deashed high-concentration coal-water slurry
AU1891088A (en) Method of producing fine particles
US4165840A (en) Method for brightening natural calcitic ores
SE8604241D0 (en) RETURN MATERIALS PROCESSING
JP2693039B2 (en) Zirconium silicate grinding medium and fine grinding method
DE3477939D1 (en) Process and installation for preparing coated metallic articles and for obtaining spherical metallic particles
FI880113A (en) Method for forming finely divided calcium sulfate
RU1799627C (en) Method for ore magnetic concentration
GB2068056A (en) A method of transporting coal as a coal/water slurry through a pipeline
JPS59154149A (en) Grinding method of solid particles
WO1989006680A1 (en) A novel and improved method of producing solid-liquid mixtures with a high concentration of solids
JPS6451493A (en) Production of coal-water slurry
KR20000025393A (en) Ceramic raw material and abrasive classification using hydro-cyclone