JPH02117904A - Extraction - Google Patents

Extraction

Info

Publication number
JPH02117904A
JPH02117904A JP63268157A JP26815788A JPH02117904A JP H02117904 A JPH02117904 A JP H02117904A JP 63268157 A JP63268157 A JP 63268157A JP 26815788 A JP26815788 A JP 26815788A JP H02117904 A JPH02117904 A JP H02117904A
Authority
JP
Japan
Prior art keywords
granules
powder
extractor
line
impurities
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
JP63268157A
Other languages
Japanese (ja)
Inventor
Koji Hirano
Hisashi Miyagawa
Naoki Mizutani
Osamu Shintani
Kazuoki Urabe
Kageune Yoshida
Original Assignee
Asahi Denka Kogyo Kk
Toyo Eng Corp
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 Asahi Denka Kogyo Kk, Toyo Eng Corp filed Critical Asahi Denka Kogyo Kk
Priority to JP63268157A priority Critical patent/JPH02117904A/en
Priority claimed from FR9001224A external-priority patent/FR2641198B1/en
Publication of JPH02117904A publication Critical patent/JPH02117904A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00Post-polymerisation treatments
    • C08F6/001Removal of residual monomers by physical means
    • C08F6/005Removal of residual monomers by physical means from solid polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D11/00Solvent extraction
    • B01D11/02Solvent extraction of solids
    • B01D11/0215Solid material in other stationary receptacles
    • B01D11/0219Fixed bed of solid material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D11/00Solvent extraction
    • B01D11/02Solvent extraction of solids
    • B01D11/0288Applications, solvents
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/54Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids

Abstract

PURPOSE: To suppress adhesion and solidification of powder or granules in an extractor, to effectively extract impurities and to obtain powder or granules purified in high purity by packing powder or granules into the interior of an extractor in a specific void, extracting and removing impurities contained in the powder or granules with an extractant.
CONSTITUTION: Powder or granules (e.g., powdery polystyrene) are packed from an inlet 12 onto a support plate 14 of an extractor 7 of fixed layer type, etc., in 0.7-0.95 void, an extractant (e.g., carbon dioxide) is fed through a line 1 above an extractor 12 to a pressurizing device 2, pressurized, sent through a line 3 to a heat exchanger 4, adjusted to extraction temperature, then fed from a line 6 to the extractor 7, dispersed by a distributor 8 and impurities contained in the powder or granules packed in the interior of the extractor 7 are extracted and removed to give purified powder or granules having extremely high extraction degree of impurities.
COPYRIGHT: (C)1990,JPO&Japio
JP63268157A 1988-10-26 1988-10-26 Extraction Pending JPH02117904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63268157A JPH02117904A (en) 1988-10-26 1988-10-26 Extraction

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP63268157A JPH02117904A (en) 1988-10-26 1988-10-26 Extraction
CA002001202A CA2001202A1 (en) 1988-10-26 1989-10-23 Method for extraction of impurities from powder material
DE3935405A DE3935405A1 (en) 1988-10-26 1989-10-24 Extn. of impurities from powdered or particulate material - using an extractant in an extractor filled with material in which the vol. fraction of pores or cavities is 0.36-0.95
FR8913992A FR2638098B1 (en) 1988-10-26 1989-10-25 PROCESS FOR THE EXTRACTION OF IMPURITIES CONTAINED IN A POWDERED MATERIAL
DD89333935A DD286297A5 (en) 1988-10-26 1989-10-26 Method for extracting contamination from powdered or particular material
FR9001224A FR2641198B1 (en) 1988-10-26 1990-02-02 PROCESS FOR THE EXTRACTION OF IMPURITIES CONTAINED IN A POWDERED MATERIAL II

Publications (1)

Publication Number Publication Date
JPH02117904A true JPH02117904A (en) 1990-05-02

Family

ID=17454694

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63268157A Pending JPH02117904A (en) 1988-10-26 1988-10-26 Extraction

Country Status (5)

Country Link
JP (1) JPH02117904A (en)
CA (1) CA2001202A1 (en)
DD (1) DD286297A5 (en)
DE (1) DE3935405A1 (en)
FR (1) FR2638098B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07502802A (en) * 1992-10-23 1995-03-23
JP2002263402A (en) * 2001-03-12 2002-09-17 Dia Instr:Kk Extraction method and extraction device
JP2005007232A (en) * 2003-06-17 2005-01-13 Mitsubishi Kakoki Kaisha Ltd Supercritical extraction method for powder component

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU667337B2 (en) * 1991-12-18 1996-03-21 Schering Corporation Method for removing residual additives from elastomeric articles
DE4201046A1 (en) * 1992-01-17 1993-07-22 Bayer Ag Method for cleaning polymer solutions
FR2699544B1 (en) * 1992-12-17 1995-02-03 Valois Process for removing low molecular weight pollutants from elastomeric seals and plastics.
GB2314336A (en) * 1996-06-18 1997-12-24 Bespak Plc Method of cleaning or purifying elastomers and elastomeric articles which are intended for medical or pharmaceutical use
FR2811951B1 (en) * 2000-07-20 2002-10-11 Distillerie Andre Dye and / or essence extraction device
CN110139895A (en) * 2017-01-02 2019-08-16 Sabic环球技术有限责任公司 The method for recycling polyolefin

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5698209A (en) * 1979-12-26 1981-08-07 Monsanto Co Purification of olefinnmaleic acid copolymer
JPS60210605A (en) * 1984-04-05 1985-10-23 Nippon Petrochem Co Ltd Deodorization of odoriferous resin
JPS63205309A (en) * 1987-02-19 1988-08-24 Rhone Poulenc Sante Purification of styrene/vinyl pyridne copolymer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1795396C3 (en) * 1968-09-26 1982-05-19 Basf Ag, 6700 Ludwigshafen, De
DE3323940A1 (en) * 1983-07-02 1985-01-10 Hoechst Ag Process for the purification of polymers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5698209A (en) * 1979-12-26 1981-08-07 Monsanto Co Purification of olefinnmaleic acid copolymer
JPS60210605A (en) * 1984-04-05 1985-10-23 Nippon Petrochem Co Ltd Deodorization of odoriferous resin
JPS63205309A (en) * 1987-02-19 1988-08-24 Rhone Poulenc Sante Purification of styrene/vinyl pyridne copolymer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07502802A (en) * 1992-10-23 1995-03-23
JP2002263402A (en) * 2001-03-12 2002-09-17 Dia Instr:Kk Extraction method and extraction device
JP2005007232A (en) * 2003-06-17 2005-01-13 Mitsubishi Kakoki Kaisha Ltd Supercritical extraction method for powder component
JP4632226B2 (en) * 2003-06-17 2011-02-23 三菱化工機株式会社 Supercritical extraction method of powder components

Also Published As

Publication number Publication date
DE3935405A1 (en) 1990-05-03
FR2638098B1 (en) 1994-07-08
FR2638098A1 (en) 1990-04-27
DD286297A5 (en) 1991-01-24
CA2001202A1 (en) 1990-04-26

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