DD141832A1 - Verfahren und vorrichtung zur herstellung von l-ascorbinsaeure - Google Patents

Verfahren und vorrichtung zur herstellung von l-ascorbinsaeure Download PDF

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Publication number
DD141832A1
DD141832A1 DD20877378A DD20877378A DD141832A1 DD 141832 A1 DD141832 A1 DD 141832A1 DD 20877378 A DD20877378 A DD 20877378A DD 20877378 A DD20877378 A DD 20877378A DD 141832 A1 DD141832 A1 DD 141832A1
Authority
DD
German Democratic Republic
Prior art keywords
acid
derivatives
butanol
pressure
removal
Prior art date
Application number
DD20877378A
Other languages
German (de)
English (en)
Inventor
Joachim Schmidt
Wolfgang Bamberg
Hartmut Grunert
Jutta Deicke
Wolfgang Schlenzka
Erhard Schorm
Heinz Stopsack
Original Assignee
Joachim Schmidt
Wolfgang Bamberg
Hartmut Grunert
Jutta Deicke
Wolfgang Schlenzka
Erhard Schorm
Heinz Stopsack
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 Joachim Schmidt, Wolfgang Bamberg, Hartmut Grunert, Jutta Deicke, Wolfgang Schlenzka, Erhard Schorm, Heinz Stopsack filed Critical Joachim Schmidt
Priority to DD20877378A priority Critical patent/DD141832A1/de
Priority to SU797770821A priority patent/SU1310398A1/ru
Priority to DE19792939052 priority patent/DE2939052A1/de
Priority to GB7936848A priority patent/GB2034315A/en
Priority to FR7926878A priority patent/FR2440366A1/fr
Priority to HUJE000896 priority patent/HU182734B/hu
Publication of DD141832A1 publication Critical patent/DD141832A1/de

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D307/56—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D307/62—Three oxygen atoms, e.g. ascorbic acid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Furan Compounds (AREA)
DD20877378A 1978-10-31 1978-10-31 Verfahren und vorrichtung zur herstellung von l-ascorbinsaeure DD141832A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DD20877378A DD141832A1 (de) 1978-10-31 1978-10-31 Verfahren und vorrichtung zur herstellung von l-ascorbinsaeure
SU797770821A SU1310398A1 (ru) 1978-10-31 1979-09-26 Способ получени @ -аскорбиновой кислоты
DE19792939052 DE2939052A1 (de) 1978-10-31 1979-09-27 Verfahren und vorrichtung zur herstellung von l-ascorbinsaeure
GB7936848A GB2034315A (en) 1978-10-31 1979-10-24 Production of L-ascorbic Acid
FR7926878A FR2440366A1 (fr) 1978-10-31 1979-10-30 Procede et dispositif pour la preparation de l'acide l-ascorbique
HUJE000896 HU182734B (en) 1978-10-31 1979-10-31 Process and apparatus for producing l-ascorbinic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD20877378A DD141832A1 (de) 1978-10-31 1978-10-31 Verfahren und vorrichtung zur herstellung von l-ascorbinsaeure

Publications (1)

Publication Number Publication Date
DD141832A1 true DD141832A1 (de) 1980-05-21

Family

ID=5515085

Family Applications (1)

Application Number Title Priority Date Filing Date
DD20877378A DD141832A1 (de) 1978-10-31 1978-10-31 Verfahren und vorrichtung zur herstellung von l-ascorbinsaeure

Country Status (6)

Country Link
DD (1) DD141832A1 (fr)
DE (1) DE2939052A1 (fr)
FR (1) FR2440366A1 (fr)
GB (1) GB2034315A (fr)
HU (1) HU182734B (fr)
SU (1) SU1310398A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4845246A (en) * 1987-06-15 1989-07-04 Takeda Chemical Industries, Ltd. Ascorbic acid ester
ES2075148T3 (es) * 1989-05-19 1995-10-01 Hayashibara Biochem Lab Acido alfa-glicosil-l-ascorbico, y su preparacion y usos.
JPH08176133A (ja) * 1994-12-26 1996-07-09 Takeda Chem Ind Ltd Ｌ−アスコルビン酸の精製法
DE19734086C1 (de) * 1997-08-07 1998-08-13 Merck Patent Gmbh Verfahren zur Herstellung von L-Ascorbinsäure
DE19904821C1 (de) * 1999-02-05 2000-07-06 Merck Patent Gmbh Verfahren zur Herstellung von L-Ascobinsäure
DE10022518A1 (de) * 2000-05-10 2001-11-15 Basf Ag Verfahren zur Herstellung von L-Ascorbinsäure durch Lactonisierung von 2-Keto-L-gulonsäure oder 2-Keto-L-gulonsäureestern
US6610863B2 (en) * 2000-12-22 2003-08-26 Eastman Chemical Company Continuous process for producing L-ascorbic acid
WO2002051827A1 (fr) 2000-12-22 2002-07-04 Eastman Chemical Company Procede de preparation d'un acide ascorbique en presence d'un sulfite
DE10115325A1 (de) * 2001-03-28 2002-10-17 Bosch Gmbh Robert Kraftstoff-Einspritzvorrichtung, insbesondere Injektor, für Brennkraftmaschinen
US6740762B2 (en) 2001-08-24 2004-05-25 Eastman Chemical Company Process for ascorbic acids using alkaline earth silicate catalysts
US6716997B1 (en) 2001-10-09 2004-04-06 Eastman Chemical Company Systems and methods for generation of ascorbic acid with reduced color
CN110372649A (zh) * 2019-08-08 2019-10-25 安徽丰原发酵技术工程研究有限公司 一种以古龙酸为原料的一步酸法制备维生素c的方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462251A (en) * 1945-05-16 1949-02-22 Merck & Co Inc Process for preparing ascorbic acids

Also Published As

Publication number Publication date
SU1310398A1 (ru) 1987-05-15
HU182734B (en) 1984-03-28
DE2939052A1 (de) 1980-05-14
GB2034315A (en) 1980-06-04
FR2440366A1 (fr) 1980-05-30

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