ES367710A1 - Improvements in the construction of devices for the policondensation of a prepolimero. (Machine-translation by Google Translate, not legally binding) - Google Patents

Improvements in the construction of devices for the policondensation of a prepolimero. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES367710A1
ES367710A1 ES367710A ES367710A ES367710A1 ES 367710 A1 ES367710 A1 ES 367710A1 ES 367710 A ES367710 A ES 367710A ES 367710 A ES367710 A ES 367710A ES 367710 A1 ES367710 A1 ES 367710A1
Authority
ES
Spain
Prior art keywords
plates
stirring system
stirring
series
reaction mixture
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.)
Expired
Application number
ES367710A
Other languages
Spanish (es)
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.)
Rhodiaceta SA
Original Assignee
Rhodiaceta 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 Rhodiaceta SA filed Critical Rhodiaceta SA
Publication of ES367710A1 publication Critical patent/ES367710A1/en
Expired 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B01J19/20—Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
    • B01F27/0724—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis directly mounted on the rotating axis
    • 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
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/18—Details relating to the spatial orientation of the reactor
    • B01J2219/182—Details relating to the spatial orientation of the reactor horizontal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

Apparatus suitable for continuously carrying out reactions in which the viscosity of the reaction mixture changes as the reaction proceeds and in which the reaction mixture and product are in the liquid phase, e.g. polycondensation, comprises a hollow shell reactor 1 with degassing orifices 4 through with the reaction mixture is continually passed from inlet 2 to outlet 3. The reactor has a substantially horizontal axis 6 about which a stirring system 7 rotates, the stirring system consisting of at least one series A, B, C or D of flat circular sector stirring plates 8 normal to the axis spaced from one another both linearly along and angularly around the axis, the plates being arranged in sets of one or more plates in each plane normal to the axisthe linear spacing and angular spacing of the plates being inter-related and related to the average viscosity and average density of the reaction medium at a designated point. The stirring system preferably comprises several stirring series A, B, C and D in each of which the distance between plates increases and the angular spacing remains constant, this latter increasing from one series to the next. The stirring system has a coefficient of obstruction which vanes from one end of the stirring system to the other, being 0.1-0.5 at the feed end and 0.01-0.1 at the outlet end. A speed of rotation of between 1 and 10 rev./minute is generally used and scraper strips 9 may be fitted to the circumference of the plates.
ES367710A 1968-05-27 1969-05-27 Improvements in the construction of devices for the policondensation of a prepolimero. (Machine-translation by Google Translate, not legally binding) Expired ES367710A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR153065 1968-05-27

Publications (1)

Publication Number Publication Date
ES367710A1 true ES367710A1 (en) 1971-04-16

Family

ID=8650629

Family Applications (1)

Application Number Title Priority Date Filing Date
ES367710A Expired ES367710A1 (en) 1968-05-27 1969-05-27 Improvements in the construction of devices for the policondensation of a prepolimero. (Machine-translation by Google Translate, not legally binding)

Country Status (10)

Country Link
JP (1) JPS4925436B1 (en)
AT (1) AT300372B (en)
BE (1) BE733657A (en)
CH (1) CH518998A (en)
DE (1) DE1926987A1 (en)
ES (1) ES367710A1 (en)
FR (1) FR1578999A (en)
GB (1) GB1267077A (en)
LU (1) LU58718A1 (en)
NL (1) NL6907626A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807703A (en) * 1972-10-12 1974-04-30 Usm Corp Mixer-emulsators
NL1017260C2 (en) * 2001-02-01 2002-08-02 Dsm Nv Continuous production of thermoplastic polyesters, includes a polycondensation step in which the partial pressure of the volatile reaction products is higher at the start of polycondensation than at the end
CN101220140B (en) * 2007-12-24 2010-08-25 中昊晨光化工研究院 Reaction device for interesterification and polycondensation reaction
WO2011062600A1 (en) * 2009-11-19 2011-05-26 E. I. Du Pont De Nemours And Company Polycondensation with a kneader reactor

Also Published As

Publication number Publication date
NL6907626A (en) 1969-12-01
AT300372B (en) 1972-07-25
DE1926987A1 (en) 1969-12-04
LU58718A1 (en) 1970-01-14
JPS4925436B1 (en) 1974-06-29
GB1267077A (en) 1972-03-15
FR1578999A (en) 1969-08-22
CH518998A (en) 1972-02-15
BE733657A (en) 1969-11-27

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