SG10201807235TA - Method for separating dimethyl carbonate from methanol - Google Patents

Method for separating dimethyl carbonate from methanol

Info

Publication number
SG10201807235TA
SG10201807235TA SG10201807235TA SG10201807235TA SG10201807235TA SG 10201807235T A SG10201807235T A SG 10201807235TA SG 10201807235T A SG10201807235T A SG 10201807235TA SG 10201807235T A SG10201807235T A SG 10201807235TA SG 10201807235T A SG10201807235T A SG 10201807235TA
Authority
SG
Singapore
Prior art keywords
methanol
dimethyl carbonate
separating dimethyl
separating
extractive distillation
Prior art date
Application number
SG10201807235TA
Inventor
Yang Weimin
Li Jun
He Wenjun
Ge Junwei
Wang Jiahua
Fei Taikang
Original Assignee
Shanghai Research Institute Of Petrochemical Technology Sinopec
China Petroleum & Chem Corp
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
Priority claimed from CN201710749452.3A external-priority patent/CN109422622B/en
Priority claimed from CN201710749458.0A external-priority patent/CN109422649B/en
Priority claimed from CN201710749211.9A external-priority patent/CN109422648B/en
Priority claimed from CN201710749443.4A external-priority patent/CN109422647B/en
Application filed by Shanghai Research Institute Of Petrochemical Technology Sinopec, China Petroleum & Chem Corp filed Critical Shanghai Research Institute Of Petrochemical Technology Sinopec
Publication of SG10201807235TA publication Critical patent/SG10201807235TA/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
    • C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
    • C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
    • C07C29/84—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation by extractive distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/04—Purification; Separation; Use of additives by distillation
    • C07C7/05—Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds
    • C07C7/08—Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds by extractive distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C68/00—Preparation of esters of carbonic or haloformic acids
    • C07C68/08—Purification; Separation; Stabilisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
    • B01D3/40—Extractive distillation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/42—Regulation; Control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/42—Regulation; Control
    • B01D3/4211—Regulation; Control of columns
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
    • C07C31/02—Monohydroxylic acyclic alcohols
    • C07C31/04—Methanol
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/96—Esters of carbonic or haloformic acids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2202/00—Details concerning evaporation, distillation or condensation
    • B01D2202/20—Use of an ionic liquid in the separation process

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

METHOD FOR SEPARATING DIMETHYL CARBONATE FROM METHANOL 5 A method for separating dimethyl carbonate from methanol is disclosed. The method includes subjecting a raw material containing dimethyl carbonate and methanol to extractive distillation, wherein an extractant comprising a compound having a general formula of CH 3O(CH 2CH 2O) nCH 3, n being an integer of 2-8, is used 10 in the extractive distillation. The method has the advantages of good separation effect, high product purity, and environmental friendly. (Fig. 3)
SG10201807235TA 2017-08-28 2018-08-24 Method for separating dimethyl carbonate from methanol SG10201807235TA (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CN201710749452.3A CN109422622B (en) 2017-08-28 2017-08-28 Method for separating dimethyl carbonate and methanol mixture by extractive distillation
CN201710749458.0A CN109422649B (en) 2017-08-28 2017-08-28 Method for purifying dimethyl carbonate
CN201710749211.9A CN109422648B (en) 2017-08-28 2017-08-28 Continuous extractive distillation separation method of dimethyl carbonate and methanol azeotrope
CN201710749187 2017-08-28
CN201710749443.4A CN109422647B (en) 2017-08-28 2017-08-28 Process for separating dimethyl carbonate and methanol azeotrope

Publications (1)

Publication Number Publication Date
SG10201807235TA true SG10201807235TA (en) 2019-03-28

Family

ID=65321956

Family Applications (1)

Application Number Title Priority Date Filing Date
SG10201807235TA SG10201807235TA (en) 2017-08-28 2018-08-24 Method for separating dimethyl carbonate from methanol

Country Status (9)

Country Link
US (1) US10815185B2 (en)
JP (1) JP7038628B2 (en)
KR (1) KR102611842B1 (en)
BE (1) BE1025983B1 (en)
BR (1) BR102018068459B1 (en)
DE (1) DE102018214336A1 (en)
ES (1) ES2702429B2 (en)
NL (1) NL2021501B1 (en)
SG (1) SG10201807235TA (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6315868B1 (en) * 1999-04-26 2001-11-13 General Electric Company Method of separating dimethyl carbonate and methanol
CN1274382C (en) * 2001-03-20 2006-09-13 巴斯福股份公司 Ionic liquids as selective additives for separation of close-boiling or azeotropic mixtures
DE10336555A1 (en) * 2003-08-05 2005-02-24 Basf Ag Removal of ionic fluid from non-volatile sump fraction arising from extraction-rectification process involves discharging sump fraction to evaporator stage or to stripper
DE10336556A1 (en) * 2003-08-05 2005-03-10 Basf Ag Distillative process for the separation of dense or azeotropic mixtures using ionic liquids
US7074951B2 (en) * 2004-03-12 2006-07-11 Ryu J Yong Process for making dialkyl carbonates
CN101084179B (en) * 2004-04-08 2012-07-04 催化蒸馏技术公司 Process for making dialkyl carbonates
CN103159586B (en) * 2013-03-26 2015-04-22 沈阳化工大学 Continuous extractive distillation separation method of dimethyl carbonate-methanol azeotropic mixture
CN104761422A (en) 2014-01-07 2015-07-08 中国科学院兰州化学物理研究所 Method for separating two-component azeotrope or close-boiling-point mixture
CN104014366B (en) * 2014-06-05 2016-04-20 重庆大学 For the Catalysts and its preparation method of one-step synthesis method dimethyl carbonate and the one-step method for synthesizing of dimethyl carbonate
CN105037162A (en) 2015-06-11 2015-11-11 济南大学 Method for continuous extraction distillation separation of dimethyl carbonate-methanol azeotropic mixture
CN108067012B (en) * 2018-01-17 2020-10-20 中国科学院过程工程研究所 Extracting agent for separating methanol and dimethyl carbonate azeotrope by extractive distillation, application and treatment method thereof

Also Published As

Publication number Publication date
BR102018068459A2 (en) 2019-03-26
DE102018214336A1 (en) 2019-02-28
NL2021501B1 (en) 2019-06-13
JP2019038803A (en) 2019-03-14
BE1025983A1 (en) 2019-08-29
KR20190024728A (en) 2019-03-08
BR102018068459B1 (en) 2022-12-13
ES2702429B2 (en) 2019-08-06
US20190062259A1 (en) 2019-02-28
KR102611842B1 (en) 2023-12-07
ES2702429A1 (en) 2019-02-28
BE1025983B1 (en) 2019-09-04
NL2021501A (en) 2019-03-07
US10815185B2 (en) 2020-10-27
JP7038628B2 (en) 2022-03-18

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