IT7820509A0 - Processo in continuo per il recupero del policarbonato da due soluzioni. - Google Patents
Processo in continuo per il recupero del policarbonato da due soluzioni.Info
- Publication number
- IT7820509A0 IT7820509A0 IT7820509A IT2050978A IT7820509A0 IT 7820509 A0 IT7820509 A0 IT 7820509A0 IT 7820509 A IT7820509 A IT 7820509A IT 2050978 A IT2050978 A IT 2050978A IT 7820509 A0 IT7820509 A0 IT 7820509A0
- Authority
- IT
- Italy
- Prior art keywords
- polycarbonate
- recovery
- solutions
- continuous process
- continuous
- Prior art date
Links
- 238000010924 continuous production Methods 0.000 title 1
- 229920000515 polycarbonate Polymers 0.000 title 1
- 239000004417 polycarbonate Substances 0.000 title 1
- 238000011084 recovery Methods 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/14—Powdering or granulating by precipitation from solutions
-
- 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
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
- B01F25/3122—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof the material flowing at a supersonic velocity thereby creating shock waves
-
- 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
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/20—General preparatory processes
- C08G64/205—General preparatory processes characterised by the apparatus used
-
- 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
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/40—Post-polymerisation treatment
- C08G64/403—Recovery of the polymer
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT20509/78A IT1094162B (it) | 1978-02-22 | 1978-02-22 | Processo in continuo per il recupero del policarbonato da sue soluzioni |
JP1795079A JPS54122393A (en) | 1978-02-22 | 1979-02-20 | Continuous recovery of polycarbonic acid ester from solution of same and powder of same obtained by same method |
EP79100514A EP0003996B2 (en) | 1978-02-22 | 1979-02-21 | Continuous process for the recovery of polycarbonate from solutions of it, and polycarbonate powders thus obtained |
DE7979100514T DE2964981D1 (en) | 1978-02-22 | 1979-02-21 | Continuous process for the recovery of polycarbonate from solutions of it, and polycarbonate powders thus obtained |
US06/014,161 US4212967A (en) | 1978-02-22 | 1979-02-22 | Process for continuous recovery of solid polycarbonate from solutions thereof in organic solvents |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT20509/78A IT1094162B (it) | 1978-02-22 | 1978-02-22 | Processo in continuo per il recupero del policarbonato da sue soluzioni |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7820509A0 true IT7820509A0 (it) | 1978-02-22 |
IT1094162B IT1094162B (it) | 1985-07-26 |
Family
ID=11168001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT20509/78A IT1094162B (it) | 1978-02-22 | 1978-02-22 | Processo in continuo per il recupero del policarbonato da sue soluzioni |
Country Status (5)
Country | Link |
---|---|
US (1) | US4212967A (it) |
EP (1) | EP0003996B2 (it) |
JP (1) | JPS54122393A (it) |
DE (1) | DE2964981D1 (it) |
IT (1) | IT1094162B (it) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1127306B (it) * | 1979-12-20 | 1986-05-21 | Montedison Spa | Processo continuo per il recupero di polimeri da loro lattici |
US4423207A (en) * | 1980-12-18 | 1983-12-27 | General Electric Company | Process for recovery of solid thermoplastic resins from solutions thereof in organic solvents |
US4408040A (en) * | 1981-05-12 | 1983-10-04 | General Electric Company | Slurry granulation-steam stripping process for solvent removal |
AU574268B2 (en) * | 1981-08-12 | 1988-06-30 | Dow Chemical Company, The | Process for converting a thermoplastic polymer into spheroidal agglomerated granules |
US4568418A (en) * | 1981-08-12 | 1986-02-04 | The Dow Chemical Company | Process for converting polymer solutions into granules |
DE3429960A1 (de) * | 1984-08-16 | 1986-02-27 | Bayer Ag, 5090 Leverkusen | Verfahren zur isolierung von thermoplastischen polycarbonaten aus seinen loesungen |
DE4224025C2 (de) * | 1992-07-21 | 1996-11-14 | Bayer Ag | Verfahren zur Isolierung von Polycarbonaten aus ihren Lösungen |
BR9206766A (pt) * | 1992-09-18 | 1995-11-07 | Idemitsu Petrochemical Co | Processo para a procução de polímero policarbonato |
EP0616002B1 (en) * | 1992-09-18 | 1998-03-04 | Idemitsu Petrochemical Co., Ltd. | Process for producing polycarbonate powder |
US5760160A (en) * | 1993-09-21 | 1998-06-02 | Teijin Chemicals Ltd. | Aromatic polycarbonate resin granule |
DE69417870T2 (de) * | 1993-09-21 | 2000-01-20 | Teijin Chemicals Ltd., Tokio/Tokyo | Aromatischer polycarbonatharzpartikel und verfahren zur herstellung desselben |
US5615831A (en) * | 1995-06-05 | 1997-04-01 | General Electric Company | Steam precipitation jet |
EP0783011A3 (de) * | 1996-01-05 | 1998-07-08 | Bayer Ag | Verfahren zur Isolierung von teilkristallinem Polycarbonatpulver |
DE19608521A1 (de) * | 1996-03-06 | 1997-09-11 | Bayer Ag | Verfahren zur Herstellung von Polycarbonatagglomerat |
US5977294A (en) * | 1997-05-13 | 1999-11-02 | Prs, Llc | Polymer deformulation by solvent solution filtration |
US20080196841A1 (en) * | 2007-02-16 | 2008-08-21 | Generon Igs, Inc. | Water-based precipitation of polymer solutions |
ATE516316T1 (de) | 2008-02-13 | 2011-07-15 | Bayer Materialscience Ag | Verfahren zur herstellung von polycarbonaten |
DE102008008841A1 (de) | 2008-02-13 | 2009-08-20 | Bayer Materialscience Ag | Verfahren zur Herstellung von Polycarbonaten |
DE102008008842A1 (de) | 2008-02-13 | 2009-08-27 | Bayer Materialscience Ag | Alkylphenol zur Einstellung des Molekulargewichtes und Polycarbonatzusammensetzungen mit verbesserten Eigenschaften |
DE102008011473A1 (de) | 2008-02-27 | 2009-09-03 | Bayer Materialscience Ag | Verfahren zur Herstellung von Polycarbonat |
DE102008012613A1 (de) | 2008-03-05 | 2009-09-10 | Bayer Materialscience Ag | Verfahren zur Herstellung von Polycarbonat nach dem Phasengrenzflächenverfahren |
DE102008023800A1 (de) | 2008-05-15 | 2009-11-19 | Bayer Materialscience Ag | Alkylphenol zur Einstellung des Molekulargewichtes und Copolycarbonat mit verbesserten Eigenschaften |
DE102009059990A1 (de) | 2009-12-22 | 2011-07-07 | Bayer MaterialScience AG, 51373 | Verfahren zur Vorrichtung zur Herstellung von Polycarbonat |
KR102307698B1 (ko) | 2014-01-24 | 2021-10-06 | 코베스트로 도이칠란트 아게 | 상 계면 방법에 따른 폴리카르보네이트의 제조 방법 |
WO2016153922A1 (en) | 2015-03-20 | 2016-09-29 | Sabic Global Technologies B.V. | Improved drying systems |
JP7330975B2 (ja) | 2017-12-18 | 2023-08-22 | コベストロ、ドイチュラント、アクチエンゲゼルシャフト | 塩素化炭化水素に基づく有機溶媒を使用したポリカーボネートの製造方法 |
EP3719052B1 (de) | 2019-04-03 | 2022-03-02 | Covestro Deutschland AG | Verfahren zur herstellung von polycarbonat mit reduziertem phosgenüberschuss |
EP3719051B1 (de) | 2019-04-03 | 2021-11-03 | Covestro Deutschland AG | Verfahren zur herstellung von polycarbonat-zugabezeitpunkt des kettenabbrechers |
WO2022048094A1 (zh) * | 2020-09-02 | 2022-03-10 | 李华玉 | 减小并利用吸热过程传热温差的方法 |
EP3985047A1 (de) | 2020-10-13 | 2022-04-20 | Covestro Deutschland AG | Verfahren zur herstellung eines polycarbonats nach dem phasengrenzflächenverfahren unter lösungsmittelaustausch |
EP4083106B1 (de) | 2021-04-30 | 2024-04-10 | Covestro Deutschland AG | Verfahren zur herstellung von polycarbonat mit verbesserter nachhaltigkeit |
CN114644776B (zh) * | 2022-04-29 | 2023-09-01 | 聊城鲁西聚碳酸酯有限公司 | 一种聚碳酸酯粉料回收利用的***及方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1191956B (de) * | 1962-08-13 | 1965-04-29 | Bayer Ag | Verfahren zum Eindampfen von Loesungen von Kunststoffen in organischen Loesungsmitteln |
US3505273A (en) * | 1967-05-04 | 1970-04-07 | Mobay Chemical Corp | Method for reducing the solvent content of a polycarbonate |
-
1978
- 1978-02-22 IT IT20509/78A patent/IT1094162B/it active
-
1979
- 1979-02-20 JP JP1795079A patent/JPS54122393A/ja active Granted
- 1979-02-21 EP EP79100514A patent/EP0003996B2/en not_active Expired
- 1979-02-21 DE DE7979100514T patent/DE2964981D1/de not_active Expired
- 1979-02-22 US US06/014,161 patent/US4212967A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0003996B1 (en) | 1983-03-09 |
IT1094162B (it) | 1985-07-26 |
US4212967A (en) | 1980-07-15 |
EP0003996B2 (en) | 1988-07-27 |
JPS54122393A (en) | 1979-09-21 |
DE2964981D1 (en) | 1983-04-14 |
JPS631333B2 (it) | 1988-01-12 |
EP0003996A1 (en) | 1979-09-19 |
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