FR2355863A1 - Procede et dispositif pour la cristallisation et le sechage en continu de granules de polymere polyester - Google Patents

Procede et dispositif pour la cristallisation et le sechage en continu de granules de polymere polyester

Info

Publication number
FR2355863A1
FR2355863A1 FR7619814A FR7619814A FR2355863A1 FR 2355863 A1 FR2355863 A1 FR 2355863A1 FR 7619814 A FR7619814 A FR 7619814A FR 7619814 A FR7619814 A FR 7619814A FR 2355863 A1 FR2355863 A1 FR 2355863A1
Authority
FR
France
Prior art keywords
granules
appts
crystallising
trays
tower
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.)
Granted
Application number
FR7619814A
Other languages
English (en)
Other versions
FR2355863B1 (fr
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.)
Neu SA
Original Assignee
Neu SA
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 Neu SA filed Critical Neu SA
Priority to FR7619814A priority Critical patent/FR2355863A1/fr
Publication of FR2355863A1 publication Critical patent/FR2355863A1/fr
Application granted granted Critical
Publication of FR2355863B1 publication Critical patent/FR2355863B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/001—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement the material moving down superimposed floors
    • F26B17/002—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement the material moving down superimposed floors with floors which may rotate and turn over as a whole or in part, e.g. around a horizontal axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0036—Crystallisation on to a bed of product crystals; Seeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B01J8/26—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with two or more fluidised beds, e.g. reactor and regeneration installations
    • B01J8/28—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with two or more fluidised beds, e.g. reactor and regeneration installations the one above the other
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/785—Preparation processes characterised by the apparatus used

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

Pour permettre son filage correct, le polymère polyester doit, à l'entrée des filières, être pratiquement exempt d'humidité résiduelle, ce qui nécessite un équilibre thermodynamique assez précis de température et de tension de vapeur d'eau. Par ailleurs, lors de leur monta en température, il se produit une modification de la structure moléculaire des granules leur donnant un comportement visqueux et entraînant une prise en masse, en bloc, au cours du traitement Le présent procédé a, pour but, d'utiliser, en un seul appareil compact, les dispositifs mis au point par la Société des Etablissements NEU et correspondant aux brevets n degrés 74 40676 déposé le 21 novembre 1974 pour un dispositif de cristallisation en continu de granulés polyester par dispersion sur un lit fluidisé et n degrés 75 40433 deposé le 30 décembre 1975 pour un silo de traitement de grains à stockage échelonné à plateaux à lamelles pivotantes permettant d'assurer un temps précis de traitement en alimentation continue et pour chaque grain pris isolément Ce dispositif est destiné à la fabrication du polyester.
FR7619814A 1976-06-22 1976-06-22 Procede et dispositif pour la cristallisation et le sechage en continu de granules de polymere polyester Granted FR2355863A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7619814A FR2355863A1 (fr) 1976-06-22 1976-06-22 Procede et dispositif pour la cristallisation et le sechage en continu de granules de polymere polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7619814A FR2355863A1 (fr) 1976-06-22 1976-06-22 Procede et dispositif pour la cristallisation et le sechage en continu de granules de polymere polyester

Publications (2)

Publication Number Publication Date
FR2355863A1 true FR2355863A1 (fr) 1978-01-20
FR2355863B1 FR2355863B1 (fr) 1980-01-18

Family

ID=9175002

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7619814A Granted FR2355863A1 (fr) 1976-06-22 1976-06-22 Procede et dispositif pour la cristallisation et le sechage en continu de granules de polymere polyester

Country Status (1)

Country Link
FR (1) FR2355863A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989011073A1 (fr) * 1988-05-09 1989-11-16 Bühler AG Chambre a lit fluidise ou bouillonnant, tour de traitement et procede en deux etapes

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR716681A (fr) * 1931-05-06 1931-12-24 Appareil de séchage particulièrement applicable aux matières pulvérulentes ou granuleus es
FR903275A (fr) * 1944-04-07 1945-09-28 Séchoir
FR1327555A (fr) * 1962-07-02 1963-05-17 Onderzoekings Inst Res Procédé pour sécher des granules de téréphtalate de polyéthylène amorphe et pour fabriquer des produits façonnés avec ceux-ci, ainsi que les produits ainsi obtenus
FR2004707A1 (fr) * 1968-03-26 1969-11-28 Snia Viscosa
GB1242023A (en) * 1967-08-23 1971-08-11 Teijin Ltd Process and apparatus for drying polyester particles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR716681A (fr) * 1931-05-06 1931-12-24 Appareil de séchage particulièrement applicable aux matières pulvérulentes ou granuleus es
FR903275A (fr) * 1944-04-07 1945-09-28 Séchoir
FR1327555A (fr) * 1962-07-02 1963-05-17 Onderzoekings Inst Res Procédé pour sécher des granules de téréphtalate de polyéthylène amorphe et pour fabriquer des produits façonnés avec ceux-ci, ainsi que les produits ainsi obtenus
GB1242023A (en) * 1967-08-23 1971-08-11 Teijin Ltd Process and apparatus for drying polyester particles
FR2004707A1 (fr) * 1968-03-26 1969-11-28 Snia Viscosa

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989011073A1 (fr) * 1988-05-09 1989-11-16 Bühler AG Chambre a lit fluidise ou bouillonnant, tour de traitement et procede en deux etapes
EP0451546A2 (fr) * 1988-05-09 1991-10-16 Bühler Ag Tour de traitement d'un matériau pulvérulent ou granuleux, et procédé pour sa mise en oeuvre
EP0451546A3 (en) * 1988-05-09 1992-01-02 Buehler Ag Processing tower for powdery or granular material and process for operating same

Also Published As

Publication number Publication date
FR2355863B1 (fr) 1980-01-18

Similar Documents

Publication Publication Date Title
JP4723498B2 (ja) Ｐｅｔの溶融重合及び固相加工の直接カップリング
US5199184A (en) Fluidized-bed or effervescent bed chamber, treatment tower and process in two stages
EP0162537A3 (fr) Méthode et appareil pour déshumidifier et chauffer l'air sécher utilisé pour le séchage de matières plastiques synthétiques
NO892604L (no) Fremgangsmaate og anordning for fremstilling av mikrosfaerer
FR2355863A1 (fr) Procede et dispositif pour la cristallisation et le sechage en continu de granules de polymere polyester
GB2128132B (en) Molecularly orientating plastics material
US5001846A (en) Solar electric drying apparatus
JPS57152873A (en) Drying system in laver sheet maker
GB2282436A (en) Apparatus for drying tea leaves
CN203454666U (zh) 热风循环的多层网带式干燥机
Djaeni et al. Energy efficient dryer with rice husk fuel for agriculture drying
KR940008614A (ko) 유기재료의 수분함량을 조절하는 방법
JPS6226802B2 (fr)
US4652278A (en) Solids drying
US3164475A (en) Rice process
GB1251093A (fr)
ES431947A1 (es) Procedimiento para la sintesis de poliesteres lineales ter- moplasticos.
CN111322849A (zh) 一种环保纸张生产用快速烘干装置
US1446580A (en) Drying apparatus
Park et al. Hot air drying characteristics of oak mushroom (Lentinus edodes) by microcomputer control system
SU932164A1 (ru) Солнечный воздухонагреватель
JPS56168819A (en) Regenerating method for dehumidifying adsorbent and discrimination device of regenerating time for executing said method
NL9101981A (nl) Werkwijze en inrichting voor het vervaardigen van halffabrikaten voor de bereiding van diervoeders.
JPS54133670A (en) Clothes drier
ATE98972T1 (de) Folien und formkoerper aus polyester und verfahren zu deren herstellung.