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GB1523311A - Process for the continuous polymerisation of lactams - Google Patents

Process for the continuous polymerisation of lactams

Info

Publication number
GB1523311A
GB1523311A GB41204/75A GB4120475A GB1523311A GB 1523311 A GB1523311 A GB 1523311A GB 41204/75 A GB41204/75 A GB 41204/75A GB 4120475 A GB4120475 A GB 4120475A GB 1523311 A GB1523311 A GB 1523311A
Authority
GB
United Kingdom
Prior art keywords
lactams
continuous polymerisation
reactor
polymerisation
continuous
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
GB41204/75A
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 GB1523311A publication Critical patent/GB1523311A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
    • C08G69/14—Lactams
    • C08G69/16—Preparatory processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4316—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod
    • B01F25/43161—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod composed of consecutive sections of flat pieces of material
    • 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
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/2415—Tubular reactors
    • 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
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/2455—Stationary reactors without moving elements inside provoking a loop type movement of the reactants
    • B01J19/246—Stationary reactors without moving elements inside provoking a loop type movement of the reactants internally, i.e. the mixture circulating inside the vessel such that the upward stream is separated physically from the downward stream(s)
    • 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
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B01J2219/00076—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements inside the reactor
    • B01J2219/00085—Plates; Jackets; Cylinders
    • 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
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00159—Controlling the temperature controlling multiple zones along the direction of flow, e.g. pre-heating and after-cooling
    • 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
    • B01J2219/185—Details relating to the spatial orientation of the reactor vertical
    • 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
    • B01J2219/19—Details relating to the geometry of the reactor
    • B01J2219/194—Details relating to the geometry of the reactor round
    • B01J2219/1941—Details relating to the geometry of the reactor round circular or disk-shaped
    • B01J2219/1943—Details relating to the geometry of the reactor round circular or disk-shaped cylindrical

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyamides (AREA)
  • Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The continuous polymerisation of caprolactams using a reactor in which the first 60% of the reactor volume is fitted, at least partly, with static mixing elements. This gives a well-mixed melt at the same time as increased throughput performance.
GB41204/75A 1974-10-09 1975-10-08 Process for the continuous polymerisation of lactams Expired GB1523311A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2448100A DE2448100C3 (en) 1974-10-09 1974-10-09 Process for continuous caprolactam polymerization

Publications (1)

Publication Number Publication Date
GB1523311A true GB1523311A (en) 1978-08-31

Family

ID=5927884

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41204/75A Expired GB1523311A (en) 1974-10-09 1975-10-08 Process for the continuous polymerisation of lactams

Country Status (13)

Country Link
JP (1) JPS5833245B2 (en)
BE (1) BE834311A (en)
CA (1) CA1064645A (en)
CH (1) CH625813A5 (en)
DE (1) DE2448100C3 (en)
DK (1) DK453775A (en)
ES (1) ES441583A1 (en)
FR (1) FR2287464A1 (en)
GB (1) GB1523311A (en)
IE (1) IE42018B1 (en)
IT (1) IT1043188B (en)
LU (1) LU73537A1 (en)
NL (1) NL7511814A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2522106C3 (en) * 1975-05-17 1982-04-15 Bayer Ag, 5090 Leverkusen Device for the continuous mixing of flowable substances and method for producing a mixing insert
DE2808854C2 (en) * 1977-05-31 1986-05-28 Gebrüder Sulzer AG, 8401 Winterthur Flow channel provided with internals for a medium involved in an indirect exchange, in particular heat exchange
JPS60141245U (en) * 1984-02-29 1985-09-19 京セラ株式会社 thermal printing equipment
JPS6120757A (en) * 1984-07-09 1986-01-29 Canon Inc Thermal recording apparatus
ES2671738T3 (en) * 2013-02-08 2018-06-08 Uhde Inventa-Fischer Gmbh Reactor with vertical condensation tube and process for the polymerization of polyamides in such a reactor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD49346A (en) *
NL125715C (en) * 1963-11-01
US3470912A (en) * 1966-11-30 1969-10-07 Du Pont Flow inverter

Also Published As

Publication number Publication date
DE2448100C3 (en) 1985-06-20
NL7511814A (en) 1976-04-13
JPS5164598A (en) 1976-06-04
DE2448100B2 (en) 1980-10-09
BE834311A (en) 1976-04-08
FR2287464A1 (en) 1976-05-07
FR2287464B1 (en) 1980-02-22
DE2448100A1 (en) 1976-07-22
DK453775A (en) 1976-04-10
IE42018B1 (en) 1980-05-21
CA1064645A (en) 1979-10-16
IT1043188B (en) 1980-02-20
JPS5833245B2 (en) 1983-07-19
IE42018L (en) 1976-04-09
LU73537A1 (en) 1976-08-19
ES441583A1 (en) 1977-04-01
CH625813A5 (en) 1981-10-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee