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1. WO2005077872 - CYCLITOL SEPARATION METHOD

Publication Number WO/2005/077872
Publication Date 25.08.2005
International Application No. PCT/US2005/004166
International Filing Date 09.02.2005
IPC
C07C 29/76 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74Separation; Purification; Stabilisation; Use of additives
76by physical treatment
C07C 29/86 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74Separation; Purification; Stabilisation; Use of additives
76by physical treatment
86by liquid-liquid treatment
C07C 41/36 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
41Preparation of ethers; Preparation of compounds having groups, groups or groups
01Preparation of ethers
34Separation; Purification; Stabilisation; Use of additives
36by solid-liquid treatment; by chemisorption
C07C 41/38 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
41Preparation of ethers; Preparation of compounds having groups, groups or groups
01Preparation of ethers
34Separation; Purification; Stabilisation; Use of additives
38by liquid-liquid treatment
CPC
C07B 2200/07
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
BGENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
2200Indexing scheme relating to specific properties of organic compounds
07Optical isomers
C07C 2601/14
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
2601Systems containing only non-condensed rings
12with a six-membered ring
14The ring being saturated
C07C 29/76
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74Separation; Purification; Use of additives, e.g. for stabilisation
76by physical treatment
C07C 29/86
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74Separation; Purification; Use of additives, e.g. for stabilisation
76by physical treatment
86by liquid-liquid treatment
C07C 41/36
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
41Preparation of ethers; Preparation of compounds having groups, groups or groups
01Preparation of ethers
34Separation; Purification; Stabilisation; Use of additives
36by solid-liquid treatment; by chemisorption
Applicants
  • CARGILL, INCORPORATED [US]/[US] (AllExceptUS)
  • PURTLE, Ian [US]/[US] (UsOnly)
  • MARTINSON, Wade [US]/[US] (UsOnly)
  • EYAL, Aharon [IL]/[IL] (UsOnly)
  • VITNER, Asher [IL]/[IL] (UsOnly)
Inventors
  • PURTLE, Ian
  • MARTINSON, Wade
  • EYAL, Aharon
  • VITNER, Asher
Agents
  • CHALETSKY, Lawrence
Priority Data
60/543,03909.02.2004US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CYCLITOL SEPARATION METHOD
(FR) PROCEDE DE SEPARATION DE CYCLITOL
Abstract
(EN)
A method for the production of a cyclitol of increased purity is disclosed. The method includes extracting the cyclitol from a plant material with an extractant to form a cyclitol extract and forming a cyclitol source from the cyclitol extract and having a cyclitol purity P1. The method also includes (step b) contacting the cyclitol source with an extractant medium to form at least one solvent-rich stream with an increased cyclitol purity P2 and at least one solvent-poor stream with a reduced cyclitol purity P3 so that P2 is greater than each of P1 and P3. The method also includes subjecting the solvent-rich stream resulting from step (b) to an enrichment operation to form a cyclitol-enriched stream having a purity P4 and a cyclitol-depleted stream with a purity P5 so that P4 is greater than each of P2 and P5. A method for the production of a protein of increased purity and a cyclitol of increased purity is also disclosed. A method for increasing the purity of a cyclitol is also disclosed.
(FR)
L'invention concerne un procédé permettant de produire un cyclitol présentant une pureté accrue. Ce procédé consiste à extraire le cyclitol d'une matière végétale à l'aide d'un solvant d'extraction afin de former un extrait de cyclitol et à former, à partir de cet extrait de cyclitol, un précurseur de cyclitol présentant un degré de pureté P1, puis (étape b) à mettre en contact ce précurseur de cyclitol avec un solvant d'extraction afin de former au moins un flux riche en solvant contenant un cyclitol de pureté accrue P2, et au moins un flux pauvre en solvant contenant un cyclitol de pureté réduite P3, de telle manière que la pureté P2 est plus élevée que les puretés P1 et P3, et à soumettre le flux riche en solvant obtenu à l'étape (b) à une opération d'enrichissement afin de former un flux enrichi en cyclitol présentant une pureté P4, et un flux appauvri en cyclitol présentant une pureté P5, de telle manière que la pureté P4 est plus élevée que les puretés P2 et P5. L'invention concerne également un procédé permettant de produire une protéine présentant une pureté accrue et un cyclitol présentant une pureté accrue, ainsi qu'un procédé permettant d'accroître la pureté d'un cyclitol.
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