FR2380067A1 - Continuously operating mixing and polymerisation reactor - has one or more conveying screws with counter-directional pitches generating localised counterflows (BE 10.8.78) - Google Patents

Continuously operating mixing and polymerisation reactor - has one or more conveying screws with counter-directional pitches generating localised counterflows (BE 10.8.78)

Info

Publication number
FR2380067A1
FR2380067A1 FR7803873A FR7803873A FR2380067A1 FR 2380067 A1 FR2380067 A1 FR 2380067A1 FR 7803873 A FR7803873 A FR 7803873A FR 7803873 A FR7803873 A FR 7803873A FR 2380067 A1 FR2380067 A1 FR 2380067A1
Authority
FR
France
Prior art keywords
counter
counterflows
polymerisation reactor
continuously operating
conveying screws
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.)
Withdrawn
Application number
FR7803873A
Other languages
French (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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of FR2380067A1 publication Critical patent/FR2380067A1/en
Withdrawn legal-status Critical Current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
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/114—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Polymerisation Methods In General (AREA)
  • Silicon Polymers (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

Mixing and polymerisation reactor with continuous operation, comprises a cylindrical container with inlets and outlets for the continuously passing reactants, and >=1 rotary shafts arranged along the longitudinal axis of the reactor. Conveying elements are mounted along sections of the shaft(s); adjacent sections having elements of opposite screw pitch causing the charge to flow in sectionally localised "cells" of currents and counter-currents. High mixing efficiency. Suitable for working-up of viscous substances, better than so-called "filmtruders" and "cascade reactors" which allow close control of desired dwell time and have narrow dwell time spectrum but are less adapted for viscous reactants.
FR7803873A 1977-02-10 1978-02-10 Continuously operating mixing and polymerisation reactor - has one or more conveying screws with counter-directional pitches generating localised counterflows (BE 10.8.78) Withdrawn FR2380067A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2705556A DE2705556C3 (en) 1977-02-10 1977-02-10 Polymerization reactor

Publications (1)

Publication Number Publication Date
FR2380067A1 true FR2380067A1 (en) 1978-09-08

Family

ID=6000816

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7803873A Withdrawn FR2380067A1 (en) 1977-02-10 1978-02-10 Continuously operating mixing and polymerisation reactor - has one or more conveying screws with counter-directional pitches generating localised counterflows (BE 10.8.78)

Country Status (8)

Country Link
JP (2) JPS5399246A (en)
BE (1) BE863829A (en)
BR (1) BR7800777A (en)
DE (1) DE2705556C3 (en)
ES (1) ES466822A1 (en)
FR (1) FR2380067A1 (en)
IT (1) IT7847949A0 (en)
NL (1) NL7801451A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2566423A1 (en) * 1984-06-26 1985-12-27 3 C Winemaking tank
FR2604725A1 (en) * 1986-10-02 1988-04-08 3 C Wine fermenter with two pairs of rotating screws - of different diameters and senses extending from opposite end walls of horizontal vessel
EP0398788A1 (en) * 1989-05-19 1990-11-22 Elf Atochem S.A. Process for the large scale polycondensation of n-dichlorophosphoryl- or n-dichlorothiophosphoryl-P-trichlorophosphazenes
WO2000053304A1 (en) * 1999-03-11 2000-09-14 Cobra Therapeutics Limited A vessel for mixing a cell lysate
DE10023698A1 (en) * 2000-05-16 2001-11-22 Lipp Mischtechnik Gmbh Vertical mixer
EP1398072A1 (en) * 1999-03-11 2004-03-17 Cobra Biologics Limited A vessel for mixing a cell lysate

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2928805C2 (en) * 1979-07-17 1982-03-11 Degussa Ag, 6000 Frankfurt Device for the evaporation of aluminum trichloride
JPS57101A (en) * 1980-06-04 1982-01-05 Mitsui Petrochem Ind Ltd Method and apparatus for polymerization
CN1113923C (en) * 1996-09-12 2003-07-09 化学工业部晨光化工研究院(成都) Raw-silastic continuously polymerizing apparatus and technology thereof
DE10310091A1 (en) * 2003-03-06 2004-09-16 Abb Lummus Global Gmbh Segmented stirred reactor

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2566423A1 (en) * 1984-06-26 1985-12-27 3 C Winemaking tank
FR2604725A1 (en) * 1986-10-02 1988-04-08 3 C Wine fermenter with two pairs of rotating screws - of different diameters and senses extending from opposite end walls of horizontal vessel
EP0398788A1 (en) * 1989-05-19 1990-11-22 Elf Atochem S.A. Process for the large scale polycondensation of n-dichlorophosphoryl- or n-dichlorothiophosphoryl-P-trichlorophosphazenes
FR2647100A1 (en) * 1989-05-19 1990-11-23 Atochem METHOD FOR MASS POLYCONDENSATION OF N-DICHLOROPHOSPHORYL- OR N-DICHLOROTHIOPHOSPHORYL-P-TRICHLOROPHOSPHAZENE
WO2000053304A1 (en) * 1999-03-11 2000-09-14 Cobra Therapeutics Limited A vessel for mixing a cell lysate
EP1398072A1 (en) * 1999-03-11 2004-03-17 Cobra Biologics Limited A vessel for mixing a cell lysate
DE10023698A1 (en) * 2000-05-16 2001-11-22 Lipp Mischtechnik Gmbh Vertical mixer
US6786631B2 (en) 2000-05-16 2004-09-07 Lipp Mischtechnik Gmbh Mixing and reducing machine with an upward conveying mixing blade

Also Published As

Publication number Publication date
ES466822A1 (en) 1978-10-01
DE2705556A1 (en) 1978-08-17
BE863829A (en) 1978-08-10
JPS5399246A (en) 1978-08-30
DE2705556B2 (en) 1979-11-22
JPS5399290A (en) 1978-08-30
BR7800777A (en) 1978-11-28
IT7847949A0 (en) 1978-02-07
DE2705556C3 (en) 1980-07-31
NL7801451A (en) 1978-08-14

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Legal Events

Date Code Title Description
ST Notification of lapse