FR2292000A1 - Fluidized bed for crystallising granular polyester resin - to inhibit coalescence by surface contact - Google Patents

Fluidized bed for crystallising granular polyester resin - to inhibit coalescence by surface contact

Info

Publication number
FR2292000A1
FR2292000A1 FR7440676A FR7440676A FR2292000A1 FR 2292000 A1 FR2292000 A1 FR 2292000A1 FR 7440676 A FR7440676 A FR 7440676A FR 7440676 A FR7440676 A FR 7440676A FR 2292000 A1 FR2292000 A1 FR 2292000A1
Authority
FR
France
Prior art keywords
crystallising
pellets
granules
polyester resin
fluidized bed
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
FR7440676A
Other languages
French (fr)
Other versions
FR2292000B1 (en
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 FR7440676A priority Critical patent/FR2292000A1/en
Publication of FR2292000A1 publication Critical patent/FR2292000A1/en
Application granted granted Critical
Publication of FR2292000B1 publication Critical patent/FR2292000B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B01J8/40—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 fluidised bed subjected to vibrations or pulsations
    • 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
    • C08G63/88—Post-polymerisation treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (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

Equipment for crystallisation nof polyester materials in granular form by cascading the pellets from a chute at a height of about 400 mm above a vertically vibrating fluidised bed fed with air at 140-160 degrees C. The rectangular bed continuously discharges pellets from one end. The shower of pellets is directed to miss the sidewalls of the bed by 40 mm and the input and output end walls by 200 and 400 mm respectively. The fluidised bed, motion generates forces >=1.5 g (gravity). Suitable for crystallisation of granules of 5 x 5 x 2 mm size at material temps. of 85-95 degrees C. The process/equipment inhibits agglomeration of the granules due to cohesion of a liquid coating which appears on the surface of the crystallising granules.
FR7440676A 1974-11-21 1974-11-21 Fluidized bed for crystallising granular polyester resin - to inhibit coalescence by surface contact Granted FR2292000A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7440676A FR2292000A1 (en) 1974-11-21 1974-11-21 Fluidized bed for crystallising granular polyester resin - to inhibit coalescence by surface contact

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7440676A FR2292000A1 (en) 1974-11-21 1974-11-21 Fluidized bed for crystallising granular polyester resin - to inhibit coalescence by surface contact

Publications (2)

Publication Number Publication Date
FR2292000A1 true FR2292000A1 (en) 1976-06-18
FR2292000B1 FR2292000B1 (en) 1979-07-20

Family

ID=9145958

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7440676A Granted FR2292000A1 (en) 1974-11-21 1974-11-21 Fluidized bed for crystallising granular polyester resin - to inhibit coalescence by surface contact

Country Status (1)

Country Link
FR (1) FR2292000A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
FR2292000B1 (en) 1979-07-20

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