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CN1236835C - 共沸蒸馏方法 - Google Patents

共沸蒸馏方法 Download PDF

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Publication number
CN1236835C
CN1236835C CN 01822882 CN01822882A CN1236835C CN 1236835 C CN1236835 C CN 1236835C CN 01822882 CN01822882 CN 01822882 CN 01822882 A CN01822882 A CN 01822882A CN 1236835 C CN1236835 C CN 1236835C
Authority
CN
China
Prior art keywords
boiling point
carboxylic acid
azeotropic distillation
concentration
entrainer
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.)
Expired - Lifetime
Application number
CN 01822882
Other languages
English (en)
Chinese (zh)
Other versions
CN1492774A (zh
Inventor
沼田元干
矶贝隆行
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.)
Mitsubishi Chemical Corp
Original Assignee
Mitsubishi Chemical 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
Application filed by Mitsubishi Chemical Corp filed Critical Mitsubishi Chemical Corp
Publication of CN1492774A publication Critical patent/CN1492774A/zh
Application granted granted Critical
Publication of CN1236835C publication Critical patent/CN1236835C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B01D3/36—Azeotropic distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
    • C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
    • C07C51/46—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation by azeotropic distillation

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
CN 01822882 2001-02-27 2001-12-25 共沸蒸馏方法 Expired - Lifetime CN1236835C (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP51554/01 2001-02-27
JP2001051554 2001-02-27
JP51554/2001 2001-02-27

Publications (2)

Publication Number Publication Date
CN1492774A CN1492774A (zh) 2004-04-28
CN1236835C true CN1236835C (zh) 2006-01-18

Family

ID=18912317

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 01822882 Expired - Lifetime CN1236835C (zh) 2001-02-27 2001-12-25 共沸蒸馏方法

Country Status (2)

Country Link
CN (1) CN1236835C (fr)
WO (1) WO2002068083A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103848733B (zh) * 2012-12-04 2015-12-23 新鼎系统股份有限公司 芳香羧酸的回收脱水共沸蒸馏工艺
CN104645896B (zh) * 2015-01-09 2016-05-04 烟台大学 一种偶相催化反应-非均相共沸精馏系统及方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53116314A (en) * 1977-03-19 1978-10-11 Mitsui Petrochem Ind Ltd Separation of acetic acid and water
NL188282C (nl) * 1977-04-04 1992-05-18 Montedison Spa Werkwijze voor de synthese van tereftaalzuur door oxyderen van p-xyleen in azijnzuuroplossing.
KR100384435B1 (ko) * 1994-08-23 2003-08-19 이.아이,듀우판드네모아앤드캄파니 방향족산제조시의공비증류에의한아세트산의탈수방법
CN1134402C (zh) * 1997-04-09 2004-01-14 纳幕尔杜邦公司 水分离方法

Also Published As

Publication number Publication date
CN1492774A (zh) 2004-04-28
WO2002068083A1 (fr) 2002-09-06

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C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: Tokyo, Japan

Patentee after: MITSUBISHI CHEMICAL Corp.

Address before: Tokyo, Japan

Patentee before: MITSUBISHI RAYON Co.,Ltd.

CP01 Change in the name or title of a patent holder
TR01 Transfer of patent right

Effective date of registration: 20171102

Address after: Tokyo, Japan

Patentee after: MITSUBISHI RAYON Co.,Ltd.

Address before: Tokyo, Japan

Patentee before: MITSUBISHI CHEMICAL Corp.

TR01 Transfer of patent right
CX01 Expiry of patent term

Granted publication date: 20060118

CX01 Expiry of patent term