ES461073A1 - Procedimiento para la separacion de cloruro de vinilo mono- mero de un polimero de poli(cloruro de vinilo). - Google Patents

Procedimiento para la separacion de cloruro de vinilo mono- mero de un polimero de poli(cloruro de vinilo).

Info

Publication number
ES461073A1
ES461073A1 ES461073A ES461073A ES461073A1 ES 461073 A1 ES461073 A1 ES 461073A1 ES 461073 A ES461073 A ES 461073A ES 461073 A ES461073 A ES 461073A ES 461073 A1 ES461073 A1 ES 461073A1
Authority
ES
Spain
Prior art keywords
column
slurry
vinyl chloride
particles
water vapor
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
ES461073A
Other languages
English (en)
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.)
Orica Ltd
Original Assignee
ICI Australia Ltd
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 ICI Australia Ltd filed Critical ICI Australia Ltd
Publication of ES461073A1 publication Critical patent/ES461073A1/es
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
    • B01D3/38—Steam distillation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/16—Fractionating columns in which vapour bubbles through liquid
    • B01D3/22—Fractionating columns in which vapour bubbles through liquid with horizontal sieve plates or grids; Construction of sieve plates or grids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/16—Fractionating columns in which vapour bubbles through liquid
    • B01D3/22—Fractionating columns in which vapour bubbles through liquid with horizontal sieve plates or grids; Construction of sieve plates or grids
    • B01D3/225—Dual-flow sieve trays
    • 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
    • C08F6/00—Post-polymerisation treatments
    • C08F6/001—Removal of residual monomers by physical means
    • C08F6/003—Removal of residual monomers by physical means from polymer solutions, suspensions, dispersions or emulsions without recovery of the polymer therefrom

Landscapes

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

Abstract

Procedimiento para la separación de cloruro de vinilo monómero de un polímero de poli (cloruro de vinilo), caracterizado porque comprende las etapas de: (a) pasar una lechada de partículas de dicho polímero de poli (cloruro de vinilo ) en agua a través de una columna sustancialmente vertical dotada de una serie de placas perforadas horizontales, pero sin tubos descendentes para líquidos, siendo alimentada la lechada a la columna en o cerca de la cabeza de la misma y siendo alimentado un flujo de vapor de agua a la columna en o cerca del pié de la misma, a una velocidad suficiente para permitir que la lechada lagrimee a través de las perforaciones contra el flujo de vapor de agua sin inundar la columna, efectuándose esta etapa bajo las siguientes condiciones: temperatura de la lecha en la columna : 90 a 150ºC. Tiempo de residencia medio de las partículas en la columna :1 a 20 minutos, recorrido semi-intercuartílico del tiempo de residencia de las partículas en la columna :inferior a 5 minutos (b) extraer la lechada separada de la columna en o cerca del pié de la misma y (c) retirar el vapor de agua y el cloruro de vinilo monómero de la columna en o cerca de la cabeza de la misma.
ES461073A 1976-07-27 1977-07-27 Procedimiento para la separacion de cloruro de vinilo mono- mero de un polimero de poli(cloruro de vinilo). Expired ES461073A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPC678276 1976-07-27
AUPC707576 1976-08-19

Publications (1)

Publication Number Publication Date
ES461073A1 true ES461073A1 (es) 1978-12-01

Family

ID=25642135

Family Applications (1)

Application Number Title Priority Date Filing Date
ES461073A Expired ES461073A1 (es) 1976-07-27 1977-07-27 Procedimiento para la separacion de cloruro de vinilo mono- mero de un polimero de poli(cloruro de vinilo).

Country Status (9)

Country Link
JP (1) JPS5334888A (es)
DE (1) DE2733679A1 (es)
ES (1) ES461073A1 (es)
FR (1) FR2359848B1 (es)
GB (1) GB1580225A (es)
IT (1) IT1143747B (es)
NL (1) NL7708168A (es)
NZ (1) NZ184661A (es)
SE (1) SE438861B (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5246813U (es) * 1976-09-21 1977-04-02
US4228273A (en) * 1978-09-05 1980-10-14 Tenneco Chemicals, Inc. Process for the removal of vinyl chloride from aqueous dispersions of vinyl chloride resins
DE2927787A1 (de) * 1979-07-10 1981-01-22 Huels Chemische Werke Ag Kolonne mit schraegloch-boeden
JPS5622305A (en) * 1979-08-01 1981-03-02 Chisso Corp Monomer removal from vinyl chloride resin slurry by steaming and apparatus therefor
JPS63317306A (ja) * 1987-06-19 1988-12-26 Chisso Corp 残留塩化ビニルモノマ−の少ない低重合度塩化ビニル重合体粉末及びその製造方法
EP1641836A1 (en) * 2003-07-03 2006-04-05 Vinnolit GmbH & Co. KG Plate column for the separation of monomeric vinyl chloride (vcm) from polyvinyl chloride (pvc) in the suspension process

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2713478A (en) * 1952-10-03 1955-07-19 Edw G Ragatz Co Apparatus for counter-current contacting of liquids and vapors
GB802148A (en) * 1954-07-15 1958-10-01 Dunlop Rubber Co Process and apparatus for distillation
GB994789A (en) * 1960-10-01 1965-06-10 Basf Ag Process and apparatus for the continuous polymerisation of ethylenically unsaturatedpolymerisable compounds
US3926927A (en) * 1974-11-25 1975-12-16 Monsanto Co Stripping monomers from a slurry of copolymerized acrylonitrile
DE2521780C2 (de) * 1975-05-16 1982-10-21 Hoechst Ag, 6000 Frankfurt Verfahren zur kontinuierlichen Entfernung von Monomeren aus einer wäßrigen Dispersion eines Polymeren
JPS5813563B2 (ja) * 1976-04-03 1983-03-14 信越化学工業株式会社 塩化ビニルの水性分散液から未反応モノマ−を除去する方法およびその装置

Also Published As

Publication number Publication date
DE2733679A1 (de) 1978-02-02
JPS5334888A (en) 1978-03-31
FR2359848A1 (es) 1978-02-24
SE7708564L (sv) 1978-01-28
SE438861B (sv) 1985-05-13
IT1143747B (it) 1986-10-22
NZ184661A (en) 1979-08-31
FR2359848B1 (fr) 1982-08-06
NL7708168A (nl) 1978-01-31
GB1580225A (en) 1980-11-26

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