HRP20240813T1 - Postupak i uređaj za reciklažu otpada koji sadrži polikondenzat - Google Patents
Postupak i uređaj za reciklažu otpada koji sadrži polikondenzat Download PDFInfo
- Publication number
- HRP20240813T1 HRP20240813T1 HRP20240813TT HRP20240813T HRP20240813T1 HR P20240813 T1 HRP20240813 T1 HR P20240813T1 HR P20240813T T HRP20240813T T HR P20240813TT HR P20240813 T HRP20240813 T HR P20240813T HR P20240813 T1 HRP20240813 T1 HR P20240813T1
- Authority
- HR
- Croatia
- Prior art keywords
- depolymerization
- base
- acid
- phase
- liquid separation
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims 11
- 239000002699 waste material Substances 0.000 title claims 6
- 238000004064 recycling Methods 0.000 title 1
- 239000002253 acid Substances 0.000 claims 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims 6
- 239000007788 liquid Substances 0.000 claims 6
- 238000000926 separation method Methods 0.000 claims 6
- 239000007787 solid Substances 0.000 claims 6
- 238000005406 washing Methods 0.000 claims 4
- -1 polyethylene terephthalate Polymers 0.000 claims 3
- 238000012545 processing Methods 0.000 claims 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims 2
- 229920001283 Polyalkylene terephthalate Polymers 0.000 claims 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 238000004090 dissolution Methods 0.000 claims 2
- 238000004821 distillation Methods 0.000 claims 2
- 239000012065 filter cake Substances 0.000 claims 2
- 238000001556 precipitation Methods 0.000 claims 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- 229920002292 Nylon 6 Polymers 0.000 claims 1
- 239000004952 Polyamide Substances 0.000 claims 1
- 238000009835 boiling Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000002425 crystallisation Methods 0.000 claims 1
- 230000008025 crystallization Effects 0.000 claims 1
- 238000000354 decomposition reaction Methods 0.000 claims 1
- 239000002274 desiccant Substances 0.000 claims 1
- 239000011261 inert gas Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 229920002647 polyamide Polymers 0.000 claims 1
- 229920001707 polybutylene terephthalate Polymers 0.000 claims 1
- 229920000139 polyethylene terephthalate Polymers 0.000 claims 1
- 239000005020 polyethylene terephthalate Substances 0.000 claims 1
- 229920000098 polyolefin Polymers 0.000 claims 1
- 239000000047 product Substances 0.000 claims 1
- 239000011541 reaction mixture Substances 0.000 claims 1
- 238000001953 recrystallisation Methods 0.000 claims 1
- 238000012958 reprocessing Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 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
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/16—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with inorganic material
-
- 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
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Claims (10)
1. Postupak za kontinuiranu, polukontinuiranu ili serijsku obradu otpada koji sadrži polikondenzate, naročito polietilen tereftalat, poliamid 6, poliamid 6.6, polibutilen tereftalat ili polipropilen tereftalat, koji imaju sadržaj poliolefina manji od 50% (tež./tež.), koji obuhvaća
- prvu fazu obrade otpada pranjem i usitnjavanjem do veličine čestica od <3 mm, odnosno <14 mm,
- fazu kontinuirane bazne depolimerizacije pomoću temperiranog ekstrudera, u kojoj se, pored otpada iz prve faze, kao još jedan edukt dodaje i alkohol koji nastaje kao produkt depolimerizacije, naročito monoetilen glikol, kao i NaOH i eventualno voda, ali ne i druge reaktivne komponente,
- fazu obrade efluenta iz faze bazne depolimerizacije sa jednim ili više koraka odabranih iz grupe koju čine pranje, odvajanje čvrsto/tekuće, taloženje, rastvaranje, koji se koriste jednom ili više puta, i
- fazu kisele depolimerizacije, pomoću reakcijske posude koja radi kontinuirano ili polukontinuirano ili serijski, u koju se pored otpada iz prve faze dodaje kiselina,
- fazu obrade efluenta iz faze kisele depolimerizacije sa jednim ili više koraka odabranih iz grupe koju čine ispiranje, odvajanje čvrsto/tekuće, taloženje, rastvaranje, rekristalizacija, destilacija, koji se koriste jednom ili više puta, i
- korak prijenosa između dvije depolimerizacije ili između faze obrade i depolimerizacije.
2. Postupak prema patentnom zahtjevu 1, u kojem se, u koraku bazne depolimerizacije, MEG dodaje sa takvim masenim protokom da odnos masenog protoka otpada prema MEG iznosi najmanje 3, naročito oko 3.3, i/ili se NaOH dodaje sa takvim masenim protokom da stehiometrijski odnos prema polialkilen tereftalatu, po strukturnoj jedinici koja se ponavlja, iznosi najmanje 2, naročito oko 2.4.
3. Postupak prema patentnom zahtjevu 1 ili 2, u kojem se korak bazne depolimerizacije sprovodi pri temperaturi ispod točke raspadanja polialkilen tereftalata i/ili ispod točke ključanja monoetilen glikola, naročito pri 160°C.
4. Postupak prema jednom od prethodnih patentnih zahtjeva, u kojem se reakcijska mješavina tokom bazne depolimerizacije gnječi i/ili miješa i/ili transportira i/ili povratno transportira.
5. Postupak prema jednom od prethodnih patentnih zahtjeva, u kojem se jedan ili više koraka provode pod inertnim plinom.
6. Postupak prema jednom od prethodnih patentnih zahtjeva, u kojem se putem koraka prijenosa između bazne i kisele depolimerizacije filterski kolač dobiven odvajanjem čvrsto/tekuće koje je provedeno na efluentu bazne depolimerizacije, prevodi kao edukt u kiselu depolimerizaciju.
7. Postupak prema jednom od prethodnih patentnih zahtjeva, u kojem se putem koraka prijenosa između kisele i bazne depolimerizacije filterski kolač dobiven odvajanjem čvrsto/tekuće koje je provedeno na efluentu kisele depolimerizacije, prevodi kao edukt u baznu depolimerizaciju.
8. Uređaj za sprovođenje postupka za ponovnu obradu prema jednom od patentnih zahtjeva 1 do 7, koji sadrži prvi reaktorski kontejner za baznu depolimerizaciju, sa sredstvima za obradu efluenta reaktora koja slijede tokom odvijanja procesa, drugi reaktorski kontejner za kiselu depolimerizaciju, sa sredstvima za obradu efluenta reaktora koja slijede tokom odvijanja procesa, kao i sredstvo za prijenos efluenta reaktora u drugi reaktorski kontejner.
9. Uređaj prema patentnom zahtjevu 8, naznačen time što sredstva za obradu obuhvaćaju sredstva za destilaciju, sredstva za razdvajanje čvrsto/tekuće, sredstva za ispiranje, sredstva za kristalizaciju i sredstva za temperaturu.
10. Uređaj prema jednom od patentnih zahtjeva 8 do 9, naznačen time što sredstva za prijenos obuhvaćaju sredstva za ispiranje, sredstva za sušenje i sredstva za razdvajanje čvrsto/tekuće.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020106457.8A DE102020106457A1 (de) | 2020-03-10 | 2020-03-10 | Verfahren und Vorrichtung zur Wiederaufarbeitung Polykondensat-haltiger Abfälle |
| EP21707179.4A EP4118137B1 (de) | 2020-03-10 | 2021-02-16 | Verfahren und vorrichtung zur wiederaufarbeitung polykondensat-haltiger abfälle |
| PCT/EP2021/053719 WO2021180432A1 (de) | 2020-03-10 | 2021-02-16 | Verfahren und vorrichtung zur wiederaufarbeitung polykondensat-haltiger abfälle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| HRP20240813T1 true HRP20240813T1 (hr) | 2024-10-25 |
Family
ID=74673182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HRP20240813TT HRP20240813T1 (hr) | 2020-03-10 | 2021-02-16 | Postupak i uređaj za reciklažu otpada koji sadrži polikondenzat |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP4118137B1 (hr) |
| DE (1) | DE102020106457A1 (hr) |
| HR (1) | HRP20240813T1 (hr) |
| HU (1) | HUE067359T2 (hr) |
| PL (1) | PL4118137T3 (hr) |
| RS (1) | RS65781B1 (hr) |
| WO (1) | WO2021180432A1 (hr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2612843A (en) * | 2021-11-16 | 2023-05-17 | Technological Univ Of The Shannon | Polyester depolymerisation |
| EP4389809A1 (en) | 2022-12-23 | 2024-06-26 | Sipchem InnoVent SA | Apparatus and method for depolymerizing polycondensation polymers |
| WO2024156568A1 (en) * | 2023-01-23 | 2024-08-02 | Evonik Operations Gmbh | Process for depolymerization of polyalkylene terephthalates in an extruder |
| CN116536681A (zh) * | 2023-07-03 | 2023-08-04 | 北京化工大学 | 一种废弃pbt塑料电化学氧化制琥珀酸耦合绿色制氢工艺 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2697839B1 (fr) * | 1992-11-09 | 1995-01-13 | Inst Francais Du Petrole | Procédé amélioré de récupération de téréphtalate de métal alcalin et d'alkylène glycol à partir de polytéréphtalates d'alkylènes. |
| EP1134211B1 (en) * | 2000-02-29 | 2002-12-18 | Massimo Broccatelli | Method of recovering chemical species by depolymerization of poly(ethylene terephthalate) and related use |
| CZ2000969A3 (cs) | 2000-03-17 | 2001-08-15 | Milan Ing. Šírek | Způsob chemické recyklace odpadního polyethylentereftalátu |
| ITMI20111411A1 (it) * | 2011-07-27 | 2013-01-28 | Maurizio Crippa | Metodo ed apparato per il riciclaggio mediante depolimerizzazione di materiali polimerici |
-
2020
- 2020-03-10 DE DE102020106457.8A patent/DE102020106457A1/de active Pending
-
2021
- 2021-02-16 PL PL21707179.4T patent/PL4118137T3/pl unknown
- 2021-02-16 WO PCT/EP2021/053719 patent/WO2021180432A1/de active Application Filing
- 2021-02-16 RS RS20240678A patent/RS65781B1/sr unknown
- 2021-02-16 HR HRP20240813TT patent/HRP20240813T1/hr unknown
- 2021-02-16 EP EP21707179.4A patent/EP4118137B1/de active Active
- 2021-02-16 HU HUE21707179A patent/HUE067359T2/hu unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RS65781B1 (sr) | 2024-08-30 |
| WO2021180432A1 (de) | 2021-09-16 |
| DE102020106457A1 (de) | 2021-09-16 |
| PL4118137T3 (pl) | 2024-09-30 |
| EP4118137A1 (de) | 2023-01-18 |
| HUE067359T2 (hu) | 2024-10-28 |
| EP4118137B1 (de) | 2024-04-17 |
| EP4118137C0 (de) | 2024-04-17 |
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