EXTRACTION METHOD FOR ACIDIC EXTRACT

PROBLEM TO BE SOLVED: To provide an extraction method for acidic extract for obtaining a drainage, i.e. an acidic extract which is discharged from timbers and wooden products during wet heat treatment of timbers or wooden products. SOLUTION: When timbers and wooden products are put into an autoclave...

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Bibliographische Detailangaben
Hauptverfasser:	SHIRATO MASAMI, HONDA SUMIO, YOSHIDA YASUNORI, KUBO NATSUKI, TANABE SHINKICHI, SAKAMOTO YOSHIAKI, TOCHIGI TAKASHI, HANADA TATSUO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW ORSIMILAR MATERIALS DISINFECTION, STERILISATION, OR DEODORISATION OF AIR HUMAN NECESSITIES HYGIENE MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL NAILING OR STAPLING MACHINES IN GENERAL PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FORIMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILARMATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITHPERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR THEIR RELEVANT APPARATUS TRANSPORTING WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an extraction method for acidic extract for obtaining a drainage, i.e. an acidic extract which is discharged from timbers and wooden products during wet heat treatment of timbers or wooden products. SOLUTION: When timbers and wooden products are put into an autoclave 4 comprising an excess water drain valve 7b which discharges excess water caused due to dew condensation of steam and a mixed liquid drain valve 7a which discharges a mixed liquid of both extract discharged from timbers and wooden products and excess water to conduct a high-temperature and high-pressure steam treatment, the mixed liquid of the extract and excess liquid is discharged to the outside of the autoclave 4 through the mixed liquid drain valve 7a while not having it get in touch with the inside of the autoclave 4. COPYRIGHT: (C)2004,JPO