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1. WO2007034673 - PROCESS FOR PRODUCING 5-AMINOLEVULINIC ACID HYDROCHLORIDE

Publication Number WO/2007/034673
Publication Date 29.03.2007
International Application No. PCT/JP2006/317570
International Filing Date 05.09.2006
IPC
C07C 227/40 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
227Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
38Separation; Purification; Stabilisation; Use of additives
40Separation; Purification
C07C 227/42 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
227Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
38Separation; Purification; Stabilisation; Use of additives
40Separation; Purification
42Crystallisation
C07C 229/22 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
229Compounds containing amino and carboxyl groups bound to the same carbon skeleton
02having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton
04the carbon skeleton being acyclic and saturated
22the carbon skeleton being further substituted by oxygen atoms
CPC
C07C 227/40
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
227Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
38Separation; Purification; Stabilisation; Use of additives
40Separation; Purification
C07C 227/42
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
227Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
38Separation; Purification; Stabilisation; Use of additives
40Separation; Purification
42Crystallisation
Applicants
  • コスモ石油株式会社 COSMO OIL CO., LTD. [JP]/[JP] (AllExceptUS)
  • 岡田 秀樹 OKADA, Hideki (UsOnly)
  • 田中 徹 TANAKA, Tohru (UsOnly)
  • 野邑 武史 NOMURA, Takeshi (UsOnly)
Inventors
  • 岡田 秀樹 OKADA, Hideki
  • 田中 徹 TANAKA, Tohru
  • 野邑 武史 NOMURA, Takeshi
Agents
  • 小栗 昌平 OGURI, Shohei
Priority Data
2005-27339821.09.2005JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) PROCESS FOR PRODUCING 5-AMINOLEVULINIC ACID HYDROCHLORIDE
(FR) PROCÉDÉ DE PRODUCTION DU CHLORHYDRATE DE L'ACIDE 5-AMINOLÉVULINIQUE
(JA) 5-アミノレブリン酸塩酸塩の製造方法
Abstract
(EN)
A process for producing 5-aminolevulinic acid hydrochloride crystals which comprises: adsorbing the 5-aminolevulinic acid contained in a crude 5-aminolevulinic acid solution onto a cation-exchange resin; subsequently desorbing the acid with an aqueous solution containing ammonium ions while utilizing a change in the electrical conductivity or pH of the solution resulting from the desorption as an index to recovery to thereby obtain an aqueous solution of high-purity 5-aminolevulinic acid; adding chloride ions to the aqueous solution; and mixing an organic solvent therewith.
(FR)
La présente invention concerne un procédé de production de cristaux du chlorhydrate de l’acides 5-aminolévulinique comprenant : l’adsorption de l'acide 5-aminolévulinique contenu dans une solution d’acide 5-aminolévulinique brut sur une résine d’échange cationique ; la désorption ultérieure de l'acide avec une solution aqueuse contenant des ions ammonium tout en utilisant une modification de la conductivité électrique ou du pH de la solution résultant de la désorption comme indice de récupération de façon à obtenir de ce fait une solution aqueuse de l'acide 5-aminolévulinique de grande pureté ; l’addition d’ions chlorure dans la solution aqueuse ; et le mélange d’un solvant organique à celle-ci.
(JA)
 5-アミノレブリン酸粗溶液に含まれる5-アミノレブリン酸を陽イオン交換樹脂に吸着させた後にアンモニウムイオンを含む水溶液で脱着させるに際し、脱着液の電気伝導度又はpHの変化を回収の指標にすることにより、高純度の5-アミノレブリン酸水溶液を得、該水溶液に塩化物イオンを添加し、有機溶媒を混合することによる5-アミノレブリン酸塩酸塩結晶の製造方法。
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