ZA975579B - A process for the preparation and fractionation of a mixture of dimethyl ether and chloromethane with methanol as extractant. - Google Patents

A process for the preparation and fractionation of a mixture of dimethyl ether and chloromethane with methanol as extractant.

Info

Publication number
ZA975579B
ZA975579B ZA9705579A ZA975579A ZA975579B ZA 975579 B ZA975579 B ZA 975579B ZA 9705579 A ZA9705579 A ZA 9705579A ZA 975579 A ZA975579 A ZA 975579A ZA 975579 B ZA975579 B ZA 975579B
Authority
ZA
South Africa
Prior art keywords
chloromethane
extractant
fractionation
methanol
mixture
Prior art date
Application number
ZA9705579A
Other languages
English (en)
Inventor
Peter Roth
Erhard Leistner
Wolfgang Wendel
Original Assignee
Hoechst Ag
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 Hoechst Ag filed Critical Hoechst Ag
Publication of ZA975579B publication Critical patent/ZA975579B/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/01—Preparation of ethers
    • C07C41/34—Separation; Purification; Stabilisation; Use of additives
    • C07C41/40—Separation; Purification; Stabilisation; Use of additives by change of physical state, e.g. by crystallisation
    • C07C41/42—Separation; Purification; Stabilisation; Use of additives by change of physical state, e.g. by crystallisation by 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
    • B01D3/34—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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/16—Preparation of halogenated hydrocarbons by replacement by halogens of hydroxyl groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/38—Separation; Purification; Stabilisation; Use of additives
    • C07C17/383—Separation; Purification; Stabilisation; Use of additives by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/01—Preparation of ethers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
ZA9705579A 1996-06-25 1997-06-24 A process for the preparation and fractionation of a mixture of dimethyl ether and chloromethane with methanol as extractant. ZA975579B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19625282A DE19625282A1 (de) 1996-06-25 1996-06-25 Verfahren zur Herstellung und Auftrennung eines Gemischs aus Dimethylether und Chlormethan mit Methanol als Extraktionsmittel

Publications (1)

Publication Number Publication Date
ZA975579B true ZA975579B (en) 1997-12-29

Family

ID=7797886

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9705579A ZA975579B (en) 1996-06-25 1997-06-24 A process for the preparation and fractionation of a mixture of dimethyl ether and chloromethane with methanol as extractant.

Country Status (12)

Country Link
US (1) US5763712A (xx)
EP (1) EP0816313B1 (xx)
JP (1) JPH1059877A (xx)
KR (1) KR980001991A (xx)
CN (1) CN1076013C (xx)
AU (1) AU2617997A (xx)
DE (2) DE19625282A1 (xx)
ID (1) ID17142A (xx)
MY (1) MY130982A (xx)
SG (1) SG50853A1 (xx)
TW (1) TW380132B (xx)
ZA (1) ZA975579B (xx)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7393990B2 (en) * 2001-06-26 2008-07-01 Exxonmobil Chemical Patents Inc. Production of light olefins from oxygenate using framework gallium-containing medium pore molecular sieve
DE102007023052A1 (de) * 2007-05-16 2008-11-20 Wacker Chemie Ag Verfahren zur Herstellung von Chlormethan mit recycliertem Chlorwasserstoff
JP5471221B2 (ja) 2009-09-14 2014-04-16 三菱化学エンジニアリング株式会社 Ｎｍｐの蒸留装置
CN103980096B (zh) * 2014-05-06 2016-02-10 南通大学 加盐萃取精馏分离甲基叔丁基醚与二氯甲烷的方法
CN104926595A (zh) * 2015-05-15 2015-09-23 大连理工大学 水吸收脱除氯甲烷中二甲醚杂质的分离工艺
CN109574790A (zh) * 2019-01-16 2019-04-05 杭州东日节能技术有限公司 氯甲烷合成无副产盐酸工艺及其设备
CN109942366A (zh) * 2019-03-10 2019-06-28 河北科技大学 一种利用氯化氢和氯化铵与甲醇反应生产氯甲烷的装置及其方法
CN110204417A (zh) * 2019-06-21 2019-09-06 江苏明珠硅橡胶材料有限公司 一种一氯甲烷提纯的方法
CN111018656A (zh) * 2019-08-05 2020-04-17 北京诺维新材科技有限公司 一种氯甲烷的制备方法
CN110922292B (zh) * 2019-08-07 2022-04-22 北京诺维新材科技有限公司 一种氯甲烷的制备方法
CN112778080B (zh) * 2021-01-12 2023-01-06 江苏扬农化工集团有限公司 一种从含3-氯丙烯和甲醇的溶液中回收含3-氯丙烯的方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421441A (en) * 1944-11-15 1947-06-03 Du Pont Purification of methyl chloride
JPS5231842B2 (xx) * 1973-10-06 1977-08-17
US4220609A (en) * 1976-12-09 1980-09-02 General Electric Company Process for the recovery of alkyl chlorides
DD142183A1 (de) * 1979-02-27 1980-06-11 Berger Karl Heinz Verfahren zur trennung von wasser,methanol und chlormethanen
DE3016220A1 (de) * 1980-04-26 1981-10-29 Hoechst Ag, 6000 Frankfurt Verfahren zur herstellung von methylchlorid
JPS59199648A (ja) * 1983-04-27 1984-11-12 Mitsubishi Chem Ind Ltd ジメチルエ−テルの製造法
US5092966A (en) * 1991-04-01 1992-03-03 Lloyd Berg Separation of methylene chloride from ethyl ether by extractive distillation

Also Published As

Publication number Publication date
TW380132B (en) 2000-01-21
EP0816313B1 (de) 2001-04-18
ID17142A (id) 1997-12-04
CN1169415A (zh) 1998-01-07
MY130982A (en) 2007-07-31
AU2617997A (en) 1998-01-15
DE19625282A1 (de) 1998-01-02
US5763712A (en) 1998-06-09
JPH1059877A (ja) 1998-03-03
SG50853A1 (en) 1998-07-20
CN1076013C (zh) 2001-12-12
KR980001991A (ko) 1998-03-30
DE59703381D1 (de) 2001-05-23
EP0816313A1 (de) 1998-01-07

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