GB994512A - Process and apparatus for the classification of fine powders and particularly ultra-microscopic powders - Google Patents

Process and apparatus for the classification of fine powders and particularly ultra-microscopic powders

Info

Publication number
GB994512A
GB994512A GB35195/61A GB3519561A GB994512A GB 994512 A GB994512 A GB 994512A GB 35195/61 A GB35195/61 A GB 35195/61A GB 3519561 A GB3519561 A GB 3519561A GB 994512 A GB994512 A GB 994512A
Authority
GB
United Kingdom
Prior art keywords
particles
trajectory
size
powders
largest
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.)
Expired
Application number
GB35195/61A
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.)
CHARLES YVES JOSEPH BOUTEILLE
Original Assignee
CHARLES YVES JOSEPH BOUTEILLE
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 CHARLES YVES JOSEPH BOUTEILLE filed Critical CHARLES YVES JOSEPH BOUTEILLE
Publication of GB994512A publication Critical patent/GB994512A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C7/00—Separating solids from solids by electrostatic effect

Landscapes

  • Electrostatic Separation (AREA)

Abstract

994,512. Electrostatic separators; grinding mills. C. Y. J. BOUTEILLE. Sept. 29, 1961 [May 16, 1961], No. 35195/61. Headings B2A and B2J. Particles 7 of micron size or less, as required in the manufacture of paint, are electrically charged and allowed to fall under gravity through an electrostatic field in an evacuated enclosure 3 so as to be sorted according to their size. The particles 7 are electrified at the outlet nozzle of a reservoir or by contact, as shown, with one of two electrodes 4, 5 producing the electrostatic field and then fall on to a heap 9 for collection, the smallest particles falling along the trajectory 10 and the largest along the trajectory 11. In another embodiment, the electrode 5 is cylindrical thereby causing the trajectory 10 to take the form of a curve. The apparatus may be combined with a grinding mill housed in the same evacuated enclosure and the largest particles recycled for further reduction in size. The process may be applied to sorting of electrically conductive metallic powders and to poor conductors such as silicon carbide, metal sulphides and ferrites.
GB35195/61A 1961-05-16 1961-09-29 Process and apparatus for the classification of fine powders and particularly ultra-microscopic powders Expired GB994512A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR861950A FR1293471A (en) 1961-05-16 1961-05-16 Improvements made to the manufacture and classification of fine powders and in particular ultra-microscopic

Publications (1)

Publication Number Publication Date
GB994512A true GB994512A (en) 1965-06-10

Family

ID=8755284

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35195/61A Expired GB994512A (en) 1961-05-16 1961-09-29 Process and apparatus for the classification of fine powders and particularly ultra-microscopic powders

Country Status (3)

Country Link
US (1) US3275139A (en)
FR (1) FR1293471A (en)
GB (1) GB994512A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4326951A (en) * 1980-03-17 1982-04-27 Broz Frank J Electrostatic mineral concentrator
CN112452797A (en) * 2020-11-06 2021-03-09 漆晓杰 Tin ball size screening device and method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1297159A (en) * 1918-02-07 1919-03-11 Research Corp Electric separator.
US1557921A (en) * 1921-04-18 1925-10-20 Buel Hillhouse Process of and apparatus for drying materials
US2224505A (en) * 1938-06-06 1940-12-10 American Foundry Equip Co Electric abrasive projector
US2398792A (en) * 1943-10-22 1946-04-23 Ritter Products Corp Electrostatic sizing of materials
US2425520A (en) * 1944-06-17 1947-08-12 Bbc Brown Boveri & Cie Electric abrasive projector
US2628785A (en) * 1948-07-16 1953-02-17 George A Fink Method and means for comminuting solid particles
US2601421A (en) * 1948-07-19 1952-06-24 Thaning Otto Method of shelling nuts
US2805769A (en) * 1957-06-20 1957-09-10 Int Minerals & Chem Corp Beneficiation of nonmetallic minerals
US3031079A (en) * 1959-06-24 1962-04-24 Quaker Oats Co Electrostatic separation

Also Published As

Publication number Publication date
FR1293471A (en) 1962-05-11
US3275139A (en) 1966-09-27

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