Title:
【発明の名称】高品質木酢液原料の製造方法
Document Type and Number:
Japanese Patent JP3002170
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a process for eliminating substances harmful to organisms from crude pyroligneous acid and for producing a high-quality pyroligneous acid material which contains useful components and can be used as a compounding ingredient for cosmetics, medicines, and food. SOLUTION: Substances harmful to organisms, i.e., formaldehyde, methanol, and a skin-irritating strongly acidic substance, are eliminated from crude pyroligneous acid by sufficiently mixing the crude pyroligneous acid with an active carbon powder under an acidic condition of a pH of 2.5 or lower, washing the carbon powder with pure water, efficiently eluting the effective components with an ethyl alcohol/ethyl acetate mixture, and evaporating the solvent layer to dryness; and the production of a high-quality pyroligneous acid material which contains useful components contained in the crude pyroligneous acid and can be used as a compounding ingredient for cosmetics, medicines, and food is made possible.
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Inventors:
Tomio Miyakawa
Application Number:
JP7568798A
Publication Date:
January 24, 2000
Filing Date:
March 24, 1998
Export Citation:
Assignee:
Development Construction Co., Ltd.
International Classes:
A23L3/3472; A01N65/00; A61K8/96; A61K8/97; A61K31/00; A61K36/00; A61P31/00; A61P31/04; A61Q11/00; C10C5/00; (IPC1-7): C10C5/00
Domestic Patent References:
| JP5212116A | ||||
| JP11158472A |
Attorney, Agent or Firm:
Tadashi Wakabayashi (4 others)