GB1041924A - Polymerization and washing - Google Patents

Polymerization and washing

Info

Publication number
GB1041924A
GB1041924A GB2413664A GB2413664A GB1041924A GB 1041924 A GB1041924 A GB 1041924A GB 2413664 A GB2413664 A GB 2413664A GB 2413664 A GB2413664 A GB 2413664A GB 1041924 A GB1041924 A GB 1041924A
Authority
GB
United Kingdom
Prior art keywords
solvent
polymer
polymerization
reaction zone
polymer solution
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
GB2413664A
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.)
Millennium Petrochemicals Inc
Original Assignee
National Destillers and Chemical Corp
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 National Destillers and Chemical Corp filed Critical National Destillers and Chemical Corp
Publication of GB1041924A publication Critical patent/GB1041924A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C2/00—Treatment of rubber solutions
    • C08C2/02—Purification
    • C08C2/04—Removal of catalyst residues
    • 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
    • B01J19/1862—Stationary reactors having moving elements inside placed in series
    • 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
    • C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
    • 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
    • B01J2219/00074—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
    • B01J2219/00101—Reflux columns
    • 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
    • B01J2219/00184—Controlling or regulating processes controlling the weight of reactants in the reactor vessel

Landscapes

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

Abstract

A continuous polymerization process comprises (1) continuously feeding into a reaction zone (a) an alfin catalyst, (b) at least one unsaturated organic monomer, (c) a solvent for the monomer which is also a solvent for the subsequently formed polymer, and (d) a polymer-molecular weight regulator, all in such proportions and rate as to produce a final polymer solution of from 1 to 30% concentration, (2) exposing the reactants to conditions of temperature and pressure in the reaction zone to effect substantially complete polymerization thereof, (3) continuously removing solvent from the reaction zone, (4) thereafter removing solvent from the solution in a solvent removal zone and (5) recovering the polymer. In an example, molecular-sieve dried hexane and butadiene are fed to a first stirred reactor together with an alfin catalyst comprising sodium isopropoxide, sodium allyl and sodium chloride, and as a molecular weight regulator 1,4-dihydrobenzene. The polymerization mixture then passes through similar second and third reactors. The resultant polymer solution, withdrawn from the third reactor, is continuously formed into a temporary emulsion with water in a centrifugal wash pump, the emulsion allowed to separate in a decanter, the aqueous layer containing soluble impurities run to waste and the purified polymer solution treated with hot water and steam under high shear mixing conditions to remove the solvent and to produce a crumbed-polymer in water slurry which is filtered off and dried. Flow diagrams illustrate the polymerization and washing processes.
GB2413664A 1963-07-12 1964-06-10 Polymerization and washing Expired GB1041924A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29471763A 1963-07-12 1963-07-12

Publications (1)

Publication Number Publication Date
GB1041924A true GB1041924A (en) 1966-09-07

Family

ID=23134625

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2413664A Expired GB1041924A (en) 1963-07-12 1964-06-10 Polymerization and washing

Country Status (12)

Country Link
AT (1) AT266434B (en)
BE (1) BE650218A (en)
CH (1) CH455294A (en)
DE (1) DE1290711B (en)
DK (1) DK109232C (en)
ES (1) ES301412A1 (en)
FI (1) FI44060B (en)
GB (1) GB1041924A (en)
LU (1) LU46508A1 (en)
NL (2) NL6407531A (en)
NO (1) NO117445B (en)
SE (1) SE330971B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113368794A (en) * 2021-08-13 2021-09-10 山东三义集团股份有限公司 Heat stabilizer production system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979509A (en) * 1957-05-06 1961-04-11 Phillips Petroleum Co Treatment of polymers produced by alkali metal catalyzed polymerization
US3067187A (en) * 1960-05-16 1962-12-04 Nat Distiffers And Chemical Co Polymerization of conjugated diolefins with an alfin catalyst and a dihydroaromatic molecular weight regulator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113368794A (en) * 2021-08-13 2021-09-10 山东三义集团股份有限公司 Heat stabilizer production system

Also Published As

Publication number Publication date
LU46508A1 (en) 1964-09-11
NL128911C (en)
ES301412A1 (en) 1962-12-16
CH455294A (en) 1968-06-28
DK109232C (en) 1968-04-01
FI44060B (en) 1971-04-30
SE330971B (en) 1970-12-07
NL6407531A (en) 1965-01-13
NO117445B (en) 1969-08-11
BE650218A (en) 1965-01-07
AT266434B (en) 1968-11-11
DE1290711B (en) 1969-03-13

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