BR0005323A - Processo para preparar sais de metal alcalino de ácido l-ascórbico - Google Patents

Processo para preparar sais de metal alcalino de ácido l-ascórbico

Info

Publication number
BR0005323A
BR0005323A BR0005323-6A BR0005323A BR0005323A BR 0005323 A BR0005323 A BR 0005323A BR 0005323 A BR0005323 A BR 0005323A BR 0005323 A BR0005323 A BR 0005323A
Authority
BR
Brazil
Prior art keywords
alkali metal
metal salts
acid
ascorbic acid
preparing alkali
Prior art date
Application number
BR0005323-6A
Other languages
English (en)
Inventor
Wolfram Burst
Gerd Kaibel
Andreas B Ttcher
Veronique Kessler
Thomas Kuntze
Original Assignee
Basf 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 Basf Ag filed Critical Basf Ag
Publication of BR0005323A publication Critical patent/BR0005323A/pt

Links

Classifications

    • 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
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/141—Fractional distillation or use of a fractionation or rectification column where at least one distillation column contains at least one dividing wall
    • 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
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
    • B01D3/322—Reboiler specifications
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Furan Compounds (AREA)

Abstract

"PROCESSO PARA PREPARAR SAIS DE METAL ALCALINO DE áCIDO-ASCóRBICO" Um processo para preparar sais de metal alcalino do ácido L-ascórbico que compreende as seguintes etapas: a) esterificar o ácido 2-ceto-L-gulónico ou o ácido diacetona-2-ceto-L-gulónico com um álcool C~ 1~-C~ 10~ na presença de um catalisador ácido, b) rearranjar o éster de alquila C~ 1~-C~ 10~ do ácido 2-ceto-L-gulónico na presença de um alcóxido C~ 1~-C~ 10~ de metal alcalino, que compreende realizar cada uma das etapas de processo a) e b) continuamente.
BR0005323-6A 1999-11-12 2000-11-09 Processo para preparar sais de metal alcalino de ácido l-ascórbico BR0005323A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19954511A DE19954511A1 (de) 1999-11-12 1999-11-12 Verfahren zur Herstellung von Alkalisalzen der L-Ascorbinsäure

Publications (1)

Publication Number Publication Date
BR0005323A true BR0005323A (pt) 2001-07-03

Family

ID=7928841

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0005323-6A BR0005323A (pt) 1999-11-12 2000-11-09 Processo para preparar sais de metal alcalino de ácido l-ascórbico

Country Status (6)

Country Link
US (1) US6274744B1 (pt)
EP (1) EP1099697A1 (pt)
JP (1) JP2001151765A (pt)
CN (1) CN1247563C (pt)
BR (1) BR0005323A (pt)
DE (1) DE19954511A1 (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE322499T1 (de) * 2002-11-11 2006-04-15 Verfahren zur herstellung von 2-keto-l-gulonsäure-c-4 c-10 /sb -alkylestern
KR101191122B1 (ko) * 2009-01-20 2012-10-15 주식회사 엘지화학 고순도 노르말 부탄올 생산용 분리벽형 증류탑, 및 노르말 부탄올 증류방법
BR112012013158A2 (pt) * 2009-12-02 2016-03-01 Univ Michigan State método de produção de um éster alquílico de um ácido carboxílico e método para o isolamento de succinato de dietila
CN101774988B (zh) * 2010-01-19 2012-07-04 江苏工业学院 固相双功能催化剂催化合成维生素c的方法
RU2702095C1 (ru) * 2018-12-25 2019-10-04 Акционерное общество "Радиевый институт имени В.Г. Хлопина" Способ получения монофазных солей актинидов и устройство для их получения

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2185383A (en) 1937-04-28 1940-01-02 Charles Pflzer & Company Preparation of levo-ascorbic acid
CH490368A (fr) * 1968-02-01 1970-05-15 Politechnika Slaska Im Wincent Procédé de production de vitamine C
JPS58177986A (ja) 1982-04-09 1983-10-18 Shionogi & Co Ltd Ｌ−アスコルビン酸の製造方法
DE3314395A1 (de) 1983-04-21 1984-10-25 Basf Ag, 6700 Ludwigshafen Verfahren zur durchfuehrung von chemischen reaktionen und gleichzeitiger destillativer zerlegung eines produktgemisches in mehrere fraktionen mittels einer destillationskolonne
ATE40356T1 (de) * 1983-08-05 1989-02-15 Hoffmann La Roche Verfahren zur herstellung von kohlenhydraten.
CN86105960A (zh) 1985-08-09 1987-05-13 鲁布里佐尔公司 在基本无水条件下从2-酮-l-古洛糖酸制备l-抗坏血酸
ATE138904T1 (de) 1989-01-17 1996-06-15 Davy Process Techn Ltd Kontinuierliches verfahren zur herstellung von carbonsäureestern
FR2648136B1 (fr) * 1989-06-12 1994-06-17 Rhone Poulenc Sante Procede de preparation de l'acide ascorbique
EP0671405A1 (de) * 1994-01-18 1995-09-13 F. Hoffmann-La Roche Ag Herstellung von 2-Keto-L-gulonsäureestern
JP3135187B2 (ja) 1994-05-19 2001-02-13 日本カーボン株式会社 イオン注入部材用の炭素材料およびその製造方法
DE19547073C1 (de) 1995-12-16 1996-11-14 Merck Patent Gmbh Verfahren zur Herstellung von Ascorbinsäure
DE19734086C1 (de) 1997-08-07 1998-08-13 Merck Patent Gmbh Verfahren zur Herstellung von L-Ascorbinsäure

Also Published As

Publication number Publication date
DE19954511A1 (de) 2001-05-17
JP2001151765A (ja) 2001-06-05
US6274744B1 (en) 2001-08-14
EP1099697A1 (de) 2001-05-16
CN1296006A (zh) 2001-05-23
CN1247563C (zh) 2006-03-29

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE A 7A E 8A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 NA RPI2003 DE 26/05/2009.