FR2469947A1 - APPARATUS FOR REFINING CRYSTALLINE MATERIALS - Google Patents

APPARATUS FOR REFINING CRYSTALLINE MATERIALS

Info

Publication number
FR2469947A1
FR2469947A1 FR8024732A FR8024732A FR2469947A1 FR 2469947 A1 FR2469947 A1 FR 2469947A1 FR 8024732 A FR8024732 A FR 8024732A FR 8024732 A FR8024732 A FR 8024732A FR 2469947 A1 FR2469947 A1 FR 2469947A1
Authority
FR
France
Prior art keywords
assemblies
cylindrical
crystalline
sub
crystalline materials
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
FR8024732A
Other languages
French (fr)
Inventor
Masaaki Shimada
Seisyo Kumagai
Shinichi Sagawa
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.)
Kureha Corp
Original Assignee
Kureha 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 Kureha Corp filed Critical Kureha Corp
Publication of FR2469947A1 publication Critical patent/FR2469947A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/004—Fractional crystallisation; Fractionating or rectifying columns

Abstract

APPAREIL POUR LE RAFFINAGE DE MATIERES CRISTALLINES. APPAREIL AYANT LA FORME D'UNE TOUR VERTICALE QUI COMPREND, EN SERIE L'UN SUR L'AUTRE DANS LE SENS VERTICAL, AU MOINS TROIS SOUS ENSEMBLES CYLINDRIQUES DONT LA SECTION A UNE FORME COMPOSEE DE DEUX CERCLES DONT LES CENTRES SONT DECALES ENTRE EUX, CES SOUS ENSEMBLES CYLINDRIQUES RENFERMANT CHACUN UN ORGANE ROTATIF D'AGITATION ET DE TRANSPORT, UN SOUS ENSEMBLE CYLINDRIQUE DISPOSE AU SOMMET DE L'APPAREIL ETANT POURVU D'UN ELEMENT CHAUFFANT POUR FONDRE LA MATIERE D'ALIMENTATION CRISTALLINE ET D'UN ORIFICE POUR EVACUER LA MATIERE CRISTALLINE RAFFINEE A SA PARTIE SUPERIEURE, LE SOUS ENSEMBLE CYLINDRIQUE DISPOSE A LA BASE DE L'APPAREIL ETANT POURVU D'UNE OUVERTURE D'ALIMENTATION POUR L'INTRODUCTION DE LA MATIERE CRISTALLINE. LA PURETE DU PRODUIT RAFFINE PEUT ETRE REGLEE PAR VARIATION DU NOMBRE DES SOUS ENSEMBLES INTERMEDIAIRES.APPARATUS FOR REFINING CRYSTALLINE MATERIALS. APPARATUS HAVING THE SHAPE OF A VERTICAL TOWER WHICH INCLUDES, IN SERIES ONE ON ANOTHER IN THE VERTICAL DIRECTION, AT LEAST THREE CYLINDRICAL SUB-ASSEMBLIES WHOSE SECTION HAS A SHAPE COMPOSED OF TWO CIRCLES WHOSE CENTERS ARE OFFSET FROM ONE TO ONE, THESE CYLINDRICAL SUB-ASSEMBLIES EACH CONTAINING A ROTATING AGITATION AND TRANSPORT ORGAN, A CYLINDRICAL SUB-ASSEMBLY PROVIDED AT THE TOP OF THE APPLIANCE BEING PROVIDED WITH A HEATING ELEMENT FOR FOUNDING THE CRYSTALLINE FEEDING MATERIAL AND AN ORIFICE FOR REFINED CRYSTALLINE MATERIAL AT ITS UPPER PART, THE CYLINDRICAL SUBASSEMBLY PROVIDED AT THE BASE OF THE APPARATUS BEING PROVIDED WITH A SUPPLY OPENING FOR THE INTRODUCTION OF THE CRYSTALLINE MATERIAL. THE PURITY OF THE REFINED PRODUCT CAN BE ADJUSTED BY VARIATION IN THE NUMBER OF INTERMEDIATE SUB-ASSEMBLIES.

FR8024732A 1979-11-22 1980-11-21 APPARATUS FOR REFINING CRYSTALLINE MATERIALS Pending FR2469947A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16232679U JPS5680202U (en) 1979-11-22 1979-11-22

Publications (1)

Publication Number Publication Date
FR2469947A1 true FR2469947A1 (en) 1981-05-29

Family

ID=15752402

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8024732A Pending FR2469947A1 (en) 1979-11-22 1980-11-21 APPARATUS FOR REFINING CRYSTALLINE MATERIALS

Country Status (4)

Country Link
JP (1) JPS5680202U (en)
DE (1) DE3043823A1 (en)
FR (1) FR2469947A1 (en)
GB (1) GB2064976A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4453959A (en) * 1982-02-25 1984-06-12 Bishkin D Bruce Crystal washing and purification method
JPS6025504A (en) * 1983-07-21 1985-02-08 Kureha Chem Ind Co Ltd Crystal purifying apparatus
JPS62244402A (en) * 1986-04-15 1987-10-24 Kureha Chem Ind Co Ltd Crystal refining device
JP2857891B2 (en) * 1989-10-04 1999-02-17 繁 齋藤 Crystal refining equipment
JP4565208B2 (en) * 2000-03-31 2010-10-20 株式会社クレハ Method for purifying glycolide
EP2923748A1 (en) * 2014-03-28 2015-09-30 Sulzer Chemtech AG A modular sub-unit for a suspension crystallization system and a suspension crystallization process using said modular sub-unit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2800411A (en) * 1954-03-31 1957-07-23 Phillips Petroleum Co Crystal purification apparatus and process
US2922701A (en) * 1956-09-20 1960-01-26 Phillips Petroleum Co Fractional crystallization apparatus
FR2005399A1 (en) * 1968-04-02 1969-12-12 Kureha Chemical Ind Co Ltd
CH535058A (en) * 1971-08-30 1973-03-31 Inventa Ag Continuous separator column - for mixed materials of different melting points

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2800411A (en) * 1954-03-31 1957-07-23 Phillips Petroleum Co Crystal purification apparatus and process
US2922701A (en) * 1956-09-20 1960-01-26 Phillips Petroleum Co Fractional crystallization apparatus
FR2005399A1 (en) * 1968-04-02 1969-12-12 Kureha Chemical Ind Co Ltd
CH535058A (en) * 1971-08-30 1973-03-31 Inventa Ag Continuous separator column - for mixed materials of different melting points

Also Published As

Publication number Publication date
GB2064976A (en) 1981-06-24
JPS5680202U (en) 1981-06-29
DE3043823A1 (en) 1981-06-11

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