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WO2001085666A3 - Improved refining processes - Google Patents

Improved refining processes Download PDF

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Publication number
WO2001085666A3
WO2001085666A3 PCT/US2001/014984 US0114984W WO0185666A3 WO 2001085666 A3 WO2001085666 A3 WO 2001085666A3 US 0114984 W US0114984 W US 0114984W WO 0185666 A3 WO0185666 A3 WO 0185666A3
Authority
WO
WIPO (PCT)
Prior art keywords
meth
alkyl
acrylate
distillation column
splitter distillation
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.)
Ceased
Application number
PCT/US2001/014984
Other languages
French (fr)
Other versions
WO2001085666A2 (en
Inventor
Chris Nicholas Boudreaux
Alex Chiahuei Kuo
Steven R Luce
Timothy Jobe Mann
Fungau Ho
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.)
Union Carbide Chemicals and Plastics Technology LLC
Original Assignee
Union Carbide Chemicals and Plastics Technology LLC
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 Union Carbide Chemicals and Plastics Technology LLC filed Critical Union Carbide Chemicals and Plastics Technology LLC
Priority to AU2001261321A priority Critical patent/AU2001261321A1/en
Publication of WO2001085666A2 publication Critical patent/WO2001085666A2/en
Publication of WO2001085666A3 publication Critical patent/WO2001085666A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
    • C07C67/54—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Crude C1-C8 alkyl (meth)acrylate streams, for example, from the reaction of butanol and (meth)acrylic acid, are refined using a splitter distillation column to yield a C1-C8 alkyl (meth)acrylate- and heavies-containing bottoms fraction and an overhead fraction containing C1-C8 alkyl acetate, C1-C8 alcohol and C1-C8 alkyl (meth)acrylate. A stream comprising a water miscible organic solvent is introduced into the splitter distillation column in an amount sufficient to prevent the formation of water layers in the splitter distillation column and thereby reduce fouling in the splitter distillation column. The bottoms fraction is then subjected to separation, for example, by distillation, to separate heavies from the bottoms fractions and to recover C1-C8 alkyl (meth)acrylate.
PCT/US2001/014984 2000-05-09 2001-05-09 Improved refining processes Ceased WO2001085666A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001261321A AU2001261321A1 (en) 2000-05-09 2001-05-09 Improved refining processes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US20294800P 2000-05-09 2000-05-09
US60/202948 2000-05-09

Publications (2)

Publication Number Publication Date
WO2001085666A2 WO2001085666A2 (en) 2001-11-15
WO2001085666A3 true WO2001085666A3 (en) 2002-08-29

Family

ID=22751856

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/014984 Ceased WO2001085666A2 (en) 2000-05-09 2001-05-09 Improved refining processes

Country Status (2)

Country Link
AU (1) AU2001261321A1 (en)
WO (1) WO2001085666A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023094252A1 (en) 2021-11-25 2023-06-01 Basf Se Process for the production of c6-c12-alkyl (meth)acrylic esters

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998012168A1 (en) * 1996-09-18 1998-03-26 Basf Aktiengesellschaft Method for preventing, removing or reducing deposits in apparatus parts during the esterification of acrylic or methacrylic acids
WO1998052904A1 (en) * 1997-05-20 1998-11-26 Union Carbide Chemicals & Plastics Technology Corporation Processes for refining butylacrylate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998012168A1 (en) * 1996-09-18 1998-03-26 Basf Aktiengesellschaft Method for preventing, removing or reducing deposits in apparatus parts during the esterification of acrylic or methacrylic acids
WO1998052904A1 (en) * 1997-05-20 1998-11-26 Union Carbide Chemicals & Plastics Technology Corporation Processes for refining butylacrylate

Also Published As

Publication number Publication date
WO2001085666A2 (en) 2001-11-15
AU2001261321A1 (en) 2001-11-20

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