IT1143747B - Porcedimento per la separazione di monomero cloruro di vinile da sospensioni di polimeri pvc in particelle in acqua - Google Patents
Porcedimento per la separazione di monomero cloruro di vinile da sospensioni di polimeri pvc in particelle in acquaInfo
- Publication number
- IT1143747B IT1143747B IT2614477A IT2614477A IT1143747B IT 1143747 B IT1143747 B IT 1143747B IT 2614477 A IT2614477 A IT 2614477A IT 2614477 A IT2614477 A IT 2614477A IT 1143747 B IT1143747 B IT 1143747B
- Authority
- IT
- Italy
- Prior art keywords
- suspensions
- separation
- port
- vinyl chloride
- chloride monomer
- Prior art date
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)
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 |
---|---|
IT1143747B true IT1143747B (it) | 1986-10-22 |
Family
ID=25642135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2614477A IT1143747B (it) | 1976-07-27 | 1977-07-26 | Porcedimento per la separazione di monomero cloruro di vinile da sospensioni di polimeri pvc in particelle in acqua |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS5334888A (it) |
DE (1) | DE2733679A1 (it) |
ES (1) | ES461073A1 (it) |
FR (1) | FR2359848B1 (it) |
GB (1) | GB1580225A (it) |
IT (1) | IT1143747B (it) |
NL (1) | NL7708168A (it) |
NZ (1) | NZ184661A (it) |
SE (1) | SE438861B (it) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5246813U (it) * | 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 |
WO2005003187A1 (en) * | 2003-07-03 | 2005-01-13 | 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)
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 |
BE608707A (fr) * | 1960-10-01 | 1962-03-29 | Basf Ag | Procédé et dispositif pour la polymérisation continue de composés polymérisables à liaisons éthyléniques |
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 |
-
1977
- 1977-07-18 NZ NZ18466177A patent/NZ184661A/xx unknown
- 1977-07-22 NL NL7708168A patent/NL7708168A/xx unknown
- 1977-07-26 DE DE19772733679 patent/DE2733679A1/de not_active Withdrawn
- 1977-07-26 GB GB3129777A patent/GB1580225A/en not_active Expired
- 1977-07-26 SE SE7708564A patent/SE438861B/xx not_active IP Right Cessation
- 1977-07-26 FR FR7722981A patent/FR2359848B1/fr not_active Expired
- 1977-07-26 IT IT2614477A patent/IT1143747B/it active
- 1977-07-27 ES ES461073A patent/ES461073A1/es not_active Expired
- 1977-07-27 JP JP8938377A patent/JPS5334888A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2733679A1 (de) | 1978-02-02 |
GB1580225A (en) | 1980-11-26 |
FR2359848B1 (fr) | 1982-08-06 |
NL7708168A (nl) | 1978-01-31 |
ES461073A1 (es) | 1978-12-01 |
SE7708564L (sv) | 1978-01-28 |
NZ184661A (en) | 1979-08-31 |
JPS5334888A (en) | 1978-03-31 |
FR2359848A1 (it) | 1978-02-24 |
SE438861B (sv) | 1985-05-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19950729 |