DE69705287T2 - Verfahren zur Herstellung von Milchsäureestern - Google Patents

Verfahren zur Herstellung von Milchsäureestern

Info

Publication number
DE69705287T2
DE69705287T2 DE1997605287 DE69705287T DE69705287T2 DE 69705287 T2 DE69705287 T2 DE 69705287T2 DE 1997605287 DE1997605287 DE 1997605287 DE 69705287 T DE69705287 T DE 69705287T DE 69705287 T2 DE69705287 T2 DE 69705287T2
Authority
DE
Germany
Prior art keywords
production
lactic acid
acid esters
esters
lactic
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 - Fee Related
Application number
DE1997605287
Other languages
English (en)
Other versions
DE69705287D1 (de
Inventor
Takafumi Abe
Yoshikazu Shima
Kazuto Ikemoto
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 Gas Chemical Co Inc
Original Assignee
Mitsubishi Gas Chemical Co Inc
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 Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc
Publication of DE69705287D1 publication Critical patent/DE69705287D1/de
Application granted granted Critical
Publication of DE69705287T2 publication Critical patent/DE69705287T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/18—Preparation of carboxylic acid esters by conversion of a group containing nitrogen into an ester group
    • C07C67/20—Preparation of carboxylic acid esters by conversion of a group containing nitrogen into an ester group from amides or lactams
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DE1997605287 1996-11-07 1997-10-30 Verfahren zur Herstellung von Milchsäureestern Expired - Fee Related DE69705287T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29520396A JPH10139731A (ja) 1996-11-07 1996-11-07 乳酸エステルの製造方法

Publications (2)

Publication Number Publication Date
DE69705287D1 DE69705287D1 (de) 2001-07-26
DE69705287T2 true DE69705287T2 (de) 2001-10-18

Family

ID=17817542

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1997605287 Expired - Fee Related DE69705287T2 (de) 1996-11-07 1997-10-30 Verfahren zur Herstellung von Milchsäureestern

Country Status (4)

Country Link
EP (1) EP0841319B1 (de)
JP (1) JPH10139731A (de)
DE (1) DE69705287T2 (de)
ES (1) ES2159079T3 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4159925A (en) * 1975-04-30 1979-07-03 Bayer Aktiengesellschaft Process for isolating propylene glycol diesters in the preparation of propylene oxide
US4975157A (en) * 1990-07-12 1990-12-04 Lloyd Berg Separation of lactate esters by extractive distillation
JP3191842B2 (ja) * 1994-02-21 2001-07-23 三菱瓦斯化学株式会社 乳酸エステルの製造法

Also Published As

Publication number Publication date
EP0841319B1 (de) 2001-06-20
DE69705287D1 (de) 2001-07-26
JPH10139731A (ja) 1998-05-26
ES2159079T3 (es) 2001-09-16
EP0841319A1 (de) 1998-05-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee