MX2023014792A - PROCESS FOR OBTAINING TEREPHTHALIC ACID AND RECOVERING SODIUM HYDROXIDE FROM A SOLUTION OF SODIUM TEREPHTHALATE PRODUCED FROM REUSED POLYETHYLENEREPHTHALATE (PET). - Google Patents

PROCESS FOR OBTAINING TEREPHTHALIC ACID AND RECOVERING SODIUM HYDROXIDE FROM A SOLUTION OF SODIUM TEREPHTHALATE PRODUCED FROM REUSED POLYETHYLENEREPHTHALATE (PET).

Info

Publication number
MX2023014792A
MX2023014792A MX2023014792A MX2023014792A MX2023014792A MX 2023014792 A MX2023014792 A MX 2023014792A MX 2023014792 A MX2023014792 A MX 2023014792A MX 2023014792 A MX2023014792 A MX 2023014792A MX 2023014792 A MX2023014792 A MX 2023014792A
Authority
MX
Mexico
Prior art keywords
pet
terephthalic acid
sodium hydroxide
recovering
reused
Prior art date
Application number
MX2023014792A
Other languages
Spanish (es)
Inventor
Infante Arturo Guadalupe Fregoso
Cornejo Jorge Guillermo Ibañez
Vásquez Medrano Rubén César
Arévalo Jorge Alberto Benítez
González Diego Millán
Original Assignee
Univ Iberoamericana A C
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 Univ Iberoamericana A C filed Critical Univ Iberoamericana A C
Publication of MX2023014792A publication Critical patent/MX2023014792A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/14—Alkali metal compounds
    • C25B1/16—Hydroxides
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
    • C25B15/083—Separating products
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B3/00—Electrolytic production of organic compounds
    • C25B3/01—Products
    • C25B3/07—Oxygen containing compounds
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B3/00—Electrolytic production of organic compounds
    • C25B3/20—Processes
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
    • C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • C25B11/042—Electrodes formed of a single material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The present invention relates to a process for obtaining terephthalic acid and recovering sodium hydroxide from a sodium terephthalate solution produced from reused PET, the process comprising the following steps: i) placing a sodium terephthalate solution obtained from an anode-side PET hydrolysis process in an electrolytic cell; ii) placing an alcoholic medium on the cathode side of the electrolytic cell; iii) applying an electric current flowing through the anode side and the cathode side of the electrolytic cell; and iv) recovering terephthalic acid and sodium hydroxide. The method has been devised so as not to generate the by-products generated in the PET recycling process, in order to have a "green" process. Moreover, the method described does not require large amounts of water or energy.
MX2023014792A 2021-06-09 2021-06-09 PROCESS FOR OBTAINING TEREPHTHALIC ACID AND RECOVERING SODIUM HYDROXIDE FROM A SOLUTION OF SODIUM TEREPHTHALATE PRODUCED FROM REUSED POLYETHYLENEREPHTHALATE (PET). MX2023014792A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2021/055081 WO2022259026A1 (en) 2021-06-09 2021-06-09 Process for obtaining terephthalic acid and recovering sodium hydroxide from a sodium terephthalate solution produced from reused polyethylene terephthalate (pet)

Publications (1)

Publication Number Publication Date
MX2023014792A true MX2023014792A (en) 2024-01-11

Family

ID=84424788

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2023014792A MX2023014792A (en) 2021-06-09 2021-06-09 PROCESS FOR OBTAINING TEREPHTHALIC ACID AND RECOVERING SODIUM HYDROXIDE FROM A SOLUTION OF SODIUM TEREPHTHALATE PRODUCED FROM REUSED POLYETHYLENEREPHTHALATE (PET).

Country Status (6)

Country Link
US (1) US20240271292A1 (en)
EP (1) EP4353876A4 (en)
CN (1) CN117858981A (en)
CA (1) CA3221682A1 (en)
MX (1) MX2023014792A (en)
WO (1) WO2022259026A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119776853B (en) * 2025-03-13 2025-07-25 源天生物科技(天津)有限公司 A process, system and application for electrolytic recovery of PTA from PET degradation liquid
CN119819680B (en) * 2025-03-13 2025-07-11 源天生物科技(天津)有限公司 Continuous production system, process and application for efficiently recycling refined PTA from waste PET

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4092230A (en) * 1977-03-10 1978-05-30 Suntech, Inc. Electrochemical process for the manufacture of terephthalic acid
US4093528A (en) * 1977-03-10 1978-06-06 Suntech, Inc. Terephthalic acid process
US5290404A (en) * 1990-10-31 1994-03-01 Reilly Industries, Inc. Electro-synthesis of alcohols and carboxylic acids from corresponding metal salts
US5780704A (en) * 1992-06-04 1998-07-14 Mitsui Chemicals, Inc. Process for treating plastic product
FR2697839B1 (en) * 1992-11-09 1995-01-13 Inst Francais Du Petrole Improved process for recovering alkali metal terephthalate and alkylene glycol from polyalkylene terephthalates.
FR2767131B1 (en) * 1997-08-06 1999-10-22 Tredi PROCESS FOR THE RECOVERY OF TEREPHTHALIC ACID AND, IF APPROPRIATE, SODA FROM A SODIUM POLYTEREPHTHALATE SOLUTION
JPH11302208A (en) 1998-04-22 1999-11-02 Akira Oku Recovery of terephthalic acid and ethylene glycol from polyethylene terephthalate
JP2004250544A (en) 2003-02-19 2004-09-09 Kansai Tlo Kk Method for recovering terephthalic acid from poly(terephthalic acid ester)
JP5314246B2 (en) * 2003-12-11 2013-10-16 アメリカン パシフィック コーポレイション Electrolytic method for producing alkali alcoholates using solid membranes of ion-conducting ceramics
CZ301118B6 (en) * 2006-09-08 2009-11-11 Ústav chemických procesu Akademie ved CR Chemical recycling process of waste polyethyleneterephthalate

Also Published As

Publication number Publication date
CA3221682A1 (en) 2022-12-15
US20240271292A1 (en) 2024-08-15
WO2022259026A1 (en) 2022-12-15
EP4353876A1 (en) 2024-04-17
CN117858981A (en) 2024-04-09
EP4353876A4 (en) 2025-04-09

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