BR8803484A - PROCESS FOR THE PRODUCTION OF SOLID PARTICLES OF MEDIUM SIZE OF REDUCED PARTICLE - Google Patents
PROCESS FOR THE PRODUCTION OF SOLID PARTICLES OF MEDIUM SIZE OF REDUCED PARTICLEInfo
- Publication number
- BR8803484A BR8803484A BR8803484A BR8803484A BR8803484A BR 8803484 A BR8803484 A BR 8803484A BR 8803484 A BR8803484 A BR 8803484A BR 8803484 A BR8803484 A BR 8803484A BR 8803484 A BR8803484 A BR 8803484A
- Authority
- BR
- Brazil
- Prior art keywords
- particle size
- particles
- classification device
- solid particles
- fine
- Prior art date
Links
- 239000002245 particle Substances 0.000 title abstract 15
- 239000007787 solid Substances 0.000 title abstract 6
- 238000000034 method Methods 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 238000004064 recycling Methods 0.000 abstract 3
- 238000005086 pumping Methods 0.000 abstract 2
- 239000010419 fine particle Substances 0.000 abstract 1
- 239000006194 liquid suspension Substances 0.000 abstract 1
- 238000003801 milling Methods 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
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)
- Glanulating (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (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.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB878716213A GB8716213D0 (en) | 1987-07-09 | 1987-07-09 | Producing fine particles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR8803484A true BR8803484A (en) | 1989-01-31 |
Family
ID=10620393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR8803484A BR8803484A (en) | 1987-07-09 | 1988-07-11 | PROCESS FOR THE PRODUCTION OF SOLID PARTICLES OF MEDIUM SIZE OF REDUCED PARTICLE |
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) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2579984B2 (en) * | 1988-01-28 | 1997-02-12 | 株式会社クボタ | Method for producing granular material and apparatus for producing the same |
| US5171631A (en) * | 1990-07-19 | 1992-12-15 | Aluminum Company Of America | Spacer/extender for titanium dioxide in pigment systems for coatings |
| PL1645334T3 (en) * | 2003-06-17 | 2009-01-30 | Xuning Wang | A crushing-grinding device, a soybean milk maker including said device and a method for making soybean milk |
| 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)
| 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 |
-
1987
- 1987-07-09 GB GB878716213A patent/GB8716213D0/en active Pending
-
1988
- 1988-07-07 NO NO883051A patent/NO174282C/en unknown
- 1988-07-07 CA CA000571405A patent/CA1323015C/en not_active Expired - Fee Related
- 1988-07-08 JP JP63169137A patent/JPH01104354A/en active Pending
- 1988-07-08 DE DE8888306282T patent/DE3872610T2/en not_active Expired - Fee Related
- 1988-07-08 IE IE208988A patent/IE61937B1/en not_active IP Right Cessation
- 1988-07-08 EP EP88306282A patent/EP0298777B1/en not_active Expired - Lifetime
- 1988-07-08 AT AT88306282T patent/ATE77974T1/en active
- 1988-07-08 AU AU18910/88A patent/AU605886B2/en not_active Ceased
- 1988-07-11 BR BR8803484A patent/BR8803484A/en not_active IP Right Cessation
- 1988-07-11 IN IN485/MAS/88A patent/IN171515B/en unknown
- 1988-07-11 ZA ZA884970A patent/ZA884970B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01104354A (en) | 1989-04-21 |
| ZA884970B (en) | 1989-03-29 |
| NO883051D0 (en) | 1988-07-08 |
| AU1891088A (en) | 1989-01-12 |
| DE3872610D1 (en) | 1992-08-13 |
| NO883051L (en) | 1989-01-10 |
| CA1323015C (en) | 1993-10-12 |
| GB8716213D0 (en) | 1987-08-12 |
| IN171515B (en) | 1992-10-31 |
| IE61937B1 (en) | 1994-11-30 |
| EP0298777A2 (en) | 1989-01-11 |
| NO174282C (en) | 1994-04-13 |
| DE3872610T2 (en) | 1993-02-18 |
| IE882089L (en) | 1989-01-09 |
| EP0298777A3 (en) | 1990-02-07 |
| ATE77974T1 (en) | 1992-07-15 |
| AU605886B2 (en) | 1991-01-24 |
| EP0298777B1 (en) | 1992-07-08 |
| NO174282B (en) | 1994-01-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B21A | Patent or certificate of addition expired [chapter 21.1 patent gazette] |
Free format text: PATENTE EXTINTA EM 11/07/2003 |