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Patent Searching and Data


Title:
CRYSTALLIZATION OF HIGH PURITY CAROTENE
Document Type and Number:
Japanese Patent JP2001139543
Kind Code:
A
Abstract:

To provide a process for the production of carotene crystal having high purity.

Carotene crystal having high purity can be produced by dispersing a carotene-containing material in a solvent compatible with hexane, filtering the dispersion, washing the filter cake and removing the solvent. The solvent is composed of one or more materials selected from hexane, acetone, ethanol, isopropyl alcohol, dichloroethane, trichloroethylene and trichlorotrifluoroethane and the dispersion is carried out at room temperature to 60°C.


Inventors:
TANAKA YOSHIRO
ICHITANI TAKESHI
Application Number:
JP35782899A
Publication Date:
May 22, 2001
Filing Date:
November 12, 1999
Export Citation:
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Assignee:
LION CORP
International Classes:
C07C403/24; C09B61/00; C09B67/54; (IPC1-7): C07C403/24; C09B61/00; C09B67/54