GB701236A - Method of polymerizing monovinyl aromatic compounds - Google Patents

Method of polymerizing monovinyl aromatic compounds

Info

Publication number
GB701236A
GB701236A GB20996/51A GB2099651A GB701236A GB 701236 A GB701236 A GB 701236A GB 20996/51 A GB20996/51 A GB 20996/51A GB 2099651 A GB2099651 A GB 2099651A GB 701236 A GB701236 A GB 701236A
Authority
GB
United Kingdom
Prior art keywords
styrene
polymer
per cent
zone
methyl
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
GB20996/51A
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB701236A publication Critical patent/GB701236A/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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/36—Polymerisation in solid state
    • 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
    • B01J2219/00054—Controlling or regulating the heat exchange system
    • B01J2219/00056—Controlling or regulating the heat exchange system involving measured parameters
    • B01J2219/00058—Temperature measurement
    • B01J2219/00063—Temperature measurement of the reactants
    • 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
    • B01J2219/00081—Tubes
    • 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
    • B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
    • B01J2219/00094—Jackets
    • 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
    • B01J2219/00132—Controlling the temperature using electric heating or cooling elements
    • B01J2219/00135—Electric resistance heaters
    • 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
    • B01J2219/0015—Controlling the temperature by thermal insulation means
    • B01J2219/00153—Vacuum spaces
    • 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
    • B01J2219/00164—Controlling or regulating processes controlling the flow
    • 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
    • B01J2219/00168—Controlling or regulating processes controlling the viscosity
    • 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
    • B01J2219/00189—Controlling or regulating processes controlling the stirring velocity
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

<PICT:0701236/IV (a)/1> In a process for the continuous polymerization of olefinic compounds containing at least 75 per cent. by weight of a monovinyl aromatic compound, the liquid monomers are fed into the top of a tower filled with the reacting mass which is caused to flow downward through a zone at a temperature of 85 DEG to 130 DEG C. until it contains at least 25 per cent. by weight of polymer, while stirring by agitator blades at a speed less than is required to produce turbulence, but so as to cause the mass to flow through the tower as a body wherein the amount of polymer is progressively increased as it passes through successive polymerization zones. The heat plastified mass containing at least 40 per cent. by weight of the polymer is removed at the lower outlet. Styrene, o-, m- and p-methyl styrenes, m- and p-ethyl styrenes, p-isopropyl styrene, o- and p-chlorostyrenes, o- and p-dimethyl styrenes and o-methyl p-isopropyl styrene are examples of the monovinyl aromatic compounds and vinyl chloride, a - methyl styrene, ethyl acrylate and methyl methacrylate may be the copolymerizable compounds. Suitable apparatus comprises a jacketed, sectional polymerization vessel 3a, 3b, 3c having a lower conical section 4 with valved outlet 5. Each section has horizontal banks of tubes 10 at right angles to each other for a heating or cooling fluid and an agitator with blades 14 on a driven shaft 15. In an example styrene is continuously polymerized in bulk at a temperature in the first zone of 85-130 DEG C. until at least 25 per cent. is polymerized, in a middle zone of 135-150 DEG C. and in a lower zone at 180 to 240 DEG C. to give a final product of 97 per cent. polymer, the rate of feed of monomer being adjusted to correspond to the amount of polymer withdrawn. Alternatively, a solution of styrene in an inert aromatic solvent, e.g. ethyl benzene, ethyl toluene, diethyl benzene or isopropyl benzene, may be used at temperatures between 100 and 150 DEG C. A series of towers may be used and the product purified by vacuum distillation.
GB20996/51A 1950-10-27 1951-09-05 Method of polymerizing monovinyl aromatic compounds Expired GB701236A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US701236XA 1950-10-27 1950-10-27

Publications (1)

Publication Number Publication Date
GB701236A true GB701236A (en) 1953-12-23

Family

ID=22093261

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20996/51A Expired GB701236A (en) 1950-10-27 1951-09-05 Method of polymerizing monovinyl aromatic compounds

Country Status (4)

Country Link
BE (1) BE505678A (en)
DE (1) DE912505C (en)
FR (1) FR1049483A (en)
GB (1) GB701236A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1879691A2 (en) * 2005-05-13 2008-01-23 Fina Technology, Inc. Plug flow reactor and polymers prepared therewith
CN108114685A (en) * 2018-02-11 2018-06-05 张旭 A kind of Chemical Manufacture adhesive solid material voltage stabilizing heating furnace
CN110038501A (en) * 2019-05-22 2019-07-23 山东豪迈机械制造有限公司 A kind of heat exchange shell and reactor
CN110038501B (en) * 2019-05-22 2024-06-04 山东豪迈机械制造有限公司 Heat exchange shell and reactor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1879691A2 (en) * 2005-05-13 2008-01-23 Fina Technology, Inc. Plug flow reactor and polymers prepared therewith
EP1879691A4 (en) * 2005-05-13 2010-11-24 Fina Technology Plug flow reactor and polymers prepared therewith
US8066954B2 (en) 2005-05-13 2011-11-29 Fina Technology, Inc. Plug flow reactor and polymers prepared therewith
CN108114685A (en) * 2018-02-11 2018-06-05 张旭 A kind of Chemical Manufacture adhesive solid material voltage stabilizing heating furnace
CN110038501A (en) * 2019-05-22 2019-07-23 山东豪迈机械制造有限公司 A kind of heat exchange shell and reactor
CN110038501B (en) * 2019-05-22 2024-06-04 山东豪迈机械制造有限公司 Heat exchange shell and reactor

Also Published As

Publication number Publication date
DE912505C (en) 1954-05-31
FR1049483A (en) 1953-12-30
BE505678A (en)

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