JPS551890A - Precise classification - Google Patents

Precise classification

Info

Publication number
JPS551890A
JPS551890A JP5359879A JP5359879A JPS551890A JP S551890 A JPS551890 A JP S551890A JP 5359879 A JP5359879 A JP 5359879A JP 5359879 A JP5359879 A JP 5359879A JP S551890 A JPS551890 A JP S551890A
Authority
JP
Japan
Prior art keywords
bath
added
particles
solvent
amount
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.)
Pending
Application number
JP5359879A
Other languages
Japanese (ja)
Inventor
Shirou Kido
Tadanori Sugimoto
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.)
Tosoh Corp
Original Assignee
Toyo Soda Manufacturing Co 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 Toyo Soda Manufacturing Co Ltd filed Critical Toyo Soda Manufacturing Co Ltd
Priority to JP5359879A priority Critical patent/JPS551890A/en
Publication of JPS551890A publication Critical patent/JPS551890A/en
Pending legal-status Critical Current

Links

Landscapes

  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

PURPOSE: For precise grain classification unaffected by grain size distribution is conducted in a multiple step classifier in such a manner that a part of nonsediment-including solution in the equipment upstream is moved to the equipment downstream, and the same amount of solvent is added to the first equipment.
CONSTITUTION: In classifying liquid chromatography filler particles, each sedimentation bath 12, 15, 18, 21 is added with solvent in amount of about one third of its content. The first sedimentation bath 12 is added with particles in amount of about one half of its content and agitated with the stirrer 13 for dispersion. After agitation is stopped, the particles are naturally sedimentated. Then, about 3/5 to 1/10 of solvent containing nonsediment gel in the bath 12 is moved to the second sedimentation bath 15, and the same amount of solvent is added to the first bath. The stirrer 16 is energized to disperse the particles in the second bath 15. The sequence of operation is continued to the fourth bath 21, providing highly precise particle classifying.
COPYRIGHT: (C)1980,JPO&Japio
JP5359879A 1979-05-01 1979-05-01 Precise classification Pending JPS551890A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5359879A JPS551890A (en) 1979-05-01 1979-05-01 Precise classification

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5359879A JPS551890A (en) 1979-05-01 1979-05-01 Precise classification

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP13215875A Division JPS5256447A (en) 1975-11-05 1975-11-05 Precision classifying method and its device

Publications (1)

Publication Number Publication Date
JPS551890A true JPS551890A (en) 1980-01-09

Family

ID=12947308

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5359879A Pending JPS551890A (en) 1979-05-01 1979-05-01 Precise classification

Country Status (1)

Country Link
JP (1) JPS551890A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999003558A1 (en) * 1997-07-04 1999-01-28 Nycomed Imaging A/S Process for the selection of particles of a preselected size from a particulate pharmaceutical product
JP2010227751A (en) * 2009-03-26 2010-10-14 Fuji Xerox Co Ltd Classification method and classifier

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999003558A1 (en) * 1997-07-04 1999-01-28 Nycomed Imaging A/S Process for the selection of particles of a preselected size from a particulate pharmaceutical product
US6202855B1 (en) 1997-07-04 2001-03-20 Nycomed Imaging As Process for the selection of particles of a preselected size from a particulate pharmaceutical product
JP2002508707A (en) * 1997-07-04 2002-03-19 ニユコメド・イメージング・アクシエセルカペト How to select particles of pre-selected size from granular drug products
JP2010227751A (en) * 2009-03-26 2010-10-14 Fuji Xerox Co Ltd Classification method and classifier
US8365922B2 (en) 2009-03-26 2013-02-05 Fuji Xerox Co., Ltd. Classifying method and classifying device

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