WO2022083396A1 - 醋酸乙烯酯的生产方法 - Google Patents

醋酸乙烯酯的生产方法 Download PDF

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Publication number
WO2022083396A1
WO2022083396A1 PCT/CN2021/119874 CN2021119874W WO2022083396A1 WO 2022083396 A1 WO2022083396 A1 WO 2022083396A1 CN 2021119874 W CN2021119874 W CN 2021119874W WO 2022083396 A1 WO2022083396 A1 WO 2022083396A1
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WO
WIPO (PCT)
Prior art keywords
tower
ethyl acetate
acetic acid
vinyl acetate
extractive 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/CN2021/119874
Other languages
English (en)
French (fr)
Chinese (zh)
Inventor
张敏华
耿中峰
董贺
龚浩
余英哲
钱胜华
董秀芹
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.)
Tianjin University
Original Assignee
Tianjin University
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 Tianjin University filed Critical Tianjin University
Priority to JP2022576527A priority Critical patent/JP7486847B2/ja
Priority to EP21881815.1A priority patent/EP4144716B1/en
Priority to US18/023,300 priority patent/US11939286B2/en
Publication of WO2022083396A1 publication Critical patent/WO2022083396A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/04—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds
    • C07C67/05—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds with oxidation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/04—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds
    • C07C67/05—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds with oxidation
    • C07C67/055—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds with oxidation in the presence of platinum group metals or their 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
    • 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
    • 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
    • C07C67/58—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/02—Esters of acyclic saturated monocarboxylic acids having the carboxyl group bound to an acyclic carbon atom or to hydrogen
    • C07C69/12—Acetic acid esters
    • C07C69/14—Acetic acid esters of monohydroxylic compounds
    • C07C69/145—Acetic acid esters of monohydroxylic compounds of unsaturated alcohols
    • C07C69/15—Vinyl acetate
    • 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
    • Y02P20/10—Process efficiency

Definitions

  • One of the raw materials used in the method of the present invention is ethylene, and the ethylene can be converted from petroleum resources, coal resources or biomass resources.
  • the first cooler of the second gas separation tower (112) adopts a plate heat exchanger or a double-shell-side shell-and-tube heat exchanger, such as a double-shell-side fixed shell-and-tube heat exchanger.
  • a double-shell-pass shell-and-tube heat exchanger enables full countercurrent operation of the hot and cold media, saving cooling water.
  • Any double shell-side shell-and-tube heat exchanger or double-shell fixed shell-and-tube heat exchanger known in the art can be used as long as it achieves the desired cooling effect.
  • the vapor is drawn from the top of the acetic acid tower (201), and the main components of the vapor are vinyl acetate and water. After the vapor is condensed by the condenser, it is sent to the phase separation tank of the acetic acid tower (201) for stratification. A part of the upper organic phase is refluxed, a part is produced and sent to the crude VAC tower (202), and the lower water phase is sent to the water phase receiving tank (207).
  • a portion of the organic phase of the acetic acid column separator tank is sent to the crude VAC column (202).
  • the crude VAC column (202) is a rectifying column for separating water and low-boiling impurities dissolved in vinyl acetate. What is taken out from the bottom of the crude VAC column (202) is vinyl acetate free of low boilers, and sent to the refined VAC column (203).

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
PCT/CN2021/119874 2020-10-20 2021-09-23 醋酸乙烯酯的生产方法 Ceased WO2022083396A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2022576527A JP7486847B2 (ja) 2020-10-20 2021-09-23 エチレンアセタートの製造方法
EP21881815.1A EP4144716B1 (en) 2020-10-20 2021-09-23 Method for producing vinyl acetate
US18/023,300 US11939286B2 (en) 2020-10-20 2021-09-23 Method for producing vinyl acetate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011127390.0 2020-10-20
CN202011127390.0A CN112209830B (zh) 2020-10-20 2020-10-20 醋酸乙烯酯的生产方法

Publications (1)

Publication Number Publication Date
WO2022083396A1 true WO2022083396A1 (zh) 2022-04-28

Family

ID=74056090

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/119874 Ceased WO2022083396A1 (zh) 2020-10-20 2021-09-23 醋酸乙烯酯的生产方法

Country Status (5)

Country Link
US (1) US11939286B2 (https=)
EP (1) EP4144716B1 (https=)
JP (1) JP7486847B2 (https=)
CN (1) CN112209830B (https=)
WO (1) WO2022083396A1 (https=)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116651016A (zh) * 2023-06-13 2023-08-29 山东中盛药化设备有限公司 一种用于聚醚醚酮的分离提纯系统及工艺
CN116924877A (zh) * 2023-07-26 2023-10-24 天津大学 醋酸乙烯合成过程循环气精制工艺及装置
EP4371972A1 (en) * 2022-11-16 2024-05-22 Tianjin University Preparation method of vinyl acetate by ethylene process and device thereof

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112299989B (zh) * 2020-10-20 2021-08-31 天津大学 醋酸乙烯生产工艺及装置
CN112209830B (zh) * 2020-10-20 2021-08-27 天津大学 醋酸乙烯酯的生产方法
CN113861026B (zh) * 2021-10-29 2022-09-06 天津大学 一种乙炔法合成的醋酸乙烯及醋酸的精制方法
CN117959746A (zh) * 2022-10-25 2024-05-03 中国石油化工股份有限公司 一种醋酸乙烯制备过程中脱除醋酸乙酯的系统及方法
CN119751195B (zh) * 2025-03-10 2025-07-01 华东理工大学 一种含密封油的乙烯气体中的乙烯的回收方法和回收装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1305367A (https=) * 1970-07-01 1973-01-31
US4897161A (en) * 1989-03-20 1990-01-30 Lloyd Berg Separation of vinyl acetate from ethyl acetate by extractive distillation
CN102936198A (zh) * 2012-10-12 2013-02-20 天津大学 生产醋酸乙烯的方法
CN112209830A (zh) * 2020-10-20 2021-01-12 天津大学 醋酸乙烯酯的生产方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905875A (en) * 1968-05-10 1975-09-16 Bayer Ag Process for the purification of crude liquid vinyl acetate
US3616271A (en) * 1968-10-25 1971-10-26 Du Pont Separation of chloroform and/or ethyl acetate from vinyl acetate by extractive distillation
DE19825254C1 (de) * 1998-06-05 1999-11-11 Celanese Gmbh Verfahren zur Aufarbeitung von rohem, flüssigem Vinylacetat
BRPI0504946A (pt) * 2004-11-04 2006-06-27 Celanese Chem Europe Gmbh processo para a preparação de acetato de vinila
DE102006038689B4 (de) * 2006-08-17 2015-01-22 Celanese Chemicals Europe Gmbh Verfahren zur Aufarbeitung von Vinylacetat
CN104718182B (zh) * 2012-08-30 2016-08-31 国际人造丝公司 具有用于预脱水塔的侧线式反应器的乙酸乙烯酯制造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1305367A (https=) * 1970-07-01 1973-01-31
US4897161A (en) * 1989-03-20 1990-01-30 Lloyd Berg Separation of vinyl acetate from ethyl acetate by extractive distillation
CN102936198A (zh) * 2012-10-12 2013-02-20 天津大学 生产醋酸乙烯的方法
CN112209830A (zh) * 2020-10-20 2021-01-12 天津大学 醋酸乙烯酯的生产方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Ethylene Derivatives Engineering", July 1995, CHEMICAL INDUSTRY PRESS
See also references of EP4144716A4

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4371972A1 (en) * 2022-11-16 2024-05-22 Tianjin University Preparation method of vinyl acetate by ethylene process and device thereof
CN116651016A (zh) * 2023-06-13 2023-08-29 山东中盛药化设备有限公司 一种用于聚醚醚酮的分离提纯系统及工艺
CN116924877A (zh) * 2023-07-26 2023-10-24 天津大学 醋酸乙烯合成过程循环气精制工艺及装置

Also Published As

Publication number Publication date
US11939286B2 (en) 2024-03-26
JP7486847B2 (ja) 2024-05-20
JP2023531171A (ja) 2023-07-21
US20230312452A1 (en) 2023-10-05
EP4144716C0 (en) 2025-05-14
CN112209830A (zh) 2021-01-12
EP4144716A1 (en) 2023-03-08
CN112209830B (zh) 2021-08-27
EP4144716B1 (en) 2025-05-14
EP4144716A4 (en) 2024-06-19

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