CA2896290C - Methode de production d'oxalate de dimethyl - Google Patents

Methode de production d'oxalate de dimethyl Download PDF

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Publication number
CA2896290C
CA2896290C CA2896290A CA2896290A CA2896290C CA 2896290 C CA2896290 C CA 2896290C CA 2896290 A CA2896290 A CA 2896290A CA 2896290 A CA2896290 A CA 2896290A CA 2896290 C CA2896290 C CA 2896290C
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CA
Canada
Prior art keywords
dimethyl oxalate
column
dimethyl
separation column
methanol
Prior art date
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Active
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CA2896290A
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English (en)
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CA2896290A1 (fr
Inventor
Weisheng Yang
Laibin He
De Shi
Song Hu
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China Petroleum and Chemical Corp
Sinopec Shanghai Research Institute of Petrochemical Technology
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China Petroleum and Chemical Corp
Sinopec Shanghai Research Institute of Petrochemical Technology
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Publication of CA2896290A1 publication Critical patent/CA2896290A1/fr
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/36—Preparation of carboxylic acid esters by reaction with carbon monoxide or formates
    • 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
    • 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
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Il est décrit une méthode de production doxalate de diméthyle, comprenant les étapes suivantes consistant à : étape a) placer, dans un réacteur de couplage, une substance réactionnelle contenant du monoxyde de carbone et du nitrite de méthyle, qui réagit en présence dun catalyseur métallique du groupe du platine, pour obtenir un flux en phase gazeuse contenant de loxalate de diméthyle; et étape b) envoyer le flux en phase gazeuse contenant de loxalate de diméthyle dans une colonne de chromatographie doxalate de diméthyle, et permettre un contact à contre-courant du flux de phase gazeuse contenant de loxalate de diméthyle avec un flux contenant du méthanol qui entre dans la colonne de chromatographie depuis sa partie supérieure, de façon à obtenir du méthanol brut depuis la partie supérieure de la colonne et un produit doxalate de diméthyle à partir de la partie inférieure de la colonne, dans laquelle le flux en phase gazeuse contenant de loxalate de diméthyle nest pas refroidi avant dêtre alimenté dans la colonne de chromatographie doxalate de diméthyle. Il est également décrit une méthode servant à produire de loxalate de diméthyle et du carbonate de diméthyle comme sous-produits. Ces méthodes se caractérisent par la simplicité des étapes du procédé, une faible consommation énergétique, un rendement élevé en oxalate de diméthyle, etc.
CA2896290A 2014-07-03 2015-07-03 Methode de production d'oxalate de dimethyl Active CA2896290C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410314462.0A CN105330542A (zh) 2014-07-03 2014-07-03 草酸二甲酯的生产方法
CN201410314462.0 2014-07-03

Publications (2)

Publication Number Publication Date
CA2896290A1 CA2896290A1 (fr) 2016-01-03
CA2896290C true CA2896290C (fr) 2022-08-16

Family

ID=55027883

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2896290A Active CA2896290C (fr) 2014-07-03 2015-07-03 Methode de production d'oxalate de dimethyl

Country Status (5)

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CN (1) CN105330542A (fr)
AU (1) AU2015203732B2 (fr)
BR (1) BR102015016125B8 (fr)
CA (1) CA2896290C (fr)
RU (1) RU2692099C2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107954830A (zh) * 2016-10-17 2018-04-24 上海浦景化工技术股份有限公司 一种降低草酸二甲酯加氢制乙二醇中产物分离能耗的方法
CN106693431A (zh) * 2017-03-17 2017-05-24 河南中托力合化学有限公司 新型庚烷精密分馏装置
CN107362563A (zh) * 2017-08-22 2017-11-21 南通泰利达化工有限公司 一种硝化棉的乙醇蒸馏工艺及装置
CN109096049A (zh) * 2018-07-03 2018-12-28 沈阳化工大学 一种酯化反应消除二甲酯中草酸并得到聚酯级乙二醇的方法
CN111454151B (zh) * 2020-04-26 2023-04-14 宁波中科远东催化工程技术有限公司 一种草酸二甲酯汽化的方法
CN112174821B (zh) * 2020-09-04 2023-08-18 中盐安徽红四方股份有限公司 草酸二甲酯的精馏方法
CN116265432A (zh) * 2021-12-16 2023-06-20 中国石油化工股份有限公司 一种低浓度草酸二甲酯的富集分离方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1078033B (it) * 1977-04-07 1985-05-08 Snam Progetti Processo per la preparazione di esteri dell'acido ossalico
US5534648A (en) * 1993-11-30 1996-07-09 Ube Industries, Ltd. Process for continuously producing dimethyl carbonate
CN102911046A (zh) * 2011-08-02 2013-02-06 中国石油化工股份有限公司 Co偶联合成草酸二甲酯的过程中草酸二甲酯的提纯方法
CN202968431U (zh) * 2012-11-01 2013-06-05 安徽淮化股份有限公司 一种乙二醇工业生产分离中间产物草酸二甲酯和甲醇的复合塔器
CN103483150B (zh) * 2013-08-31 2016-02-17 安徽淮化股份有限公司 一种以煤为原料生产合成乙二醇的方法和装置

Also Published As

Publication number Publication date
CA2896290A1 (fr) 2016-01-03
AU2015203732B2 (en) 2019-04-04
BR102015016125B8 (pt) 2021-05-18
BR102015016125A2 (pt) 2018-06-12
CN105330542A (zh) 2016-02-17
RU2015126664A (ru) 2017-01-12
RU2692099C2 (ru) 2019-06-21
RU2015126664A3 (fr) 2019-01-31
BR102015016125B1 (pt) 2020-12-08
AU2015203732A1 (en) 2016-01-21

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