41.
(11) Patent number: 2158192
(46) Date of publication: 27.10.2000
(51) Int. Cl.7: B 27 K 5/00, C 07 C 59/185, 47/56, 47/575, 47/58
(21) Application number: 99124884/04
(22) Application date: 25.11.1999
(71) Applicant:
Institut khimii i khimicheskoj tekhnologii SO RAN
(72) Inventor:
Taraban'ko V.E.,
Kozlov I.A.,
Pervyshina E.P.,
Chernjak M.Ju.,
Kuznetsov B.N.
(73) Proprietor:
Institut khimii i khimicheskoj tekhnologii SO RAN
(98) Mail address:
660036, g.Krasnojarsk, Akademgorodok, IKhKhT SO RAN, patentovedu Zamjatinoj V.V
(54) CHEMICAL WOOD PROCESSING METHOD
(57)
FIELD: wood processing. SUBSTANCE: invention provides technology for production of vanillin, levulinic acid, and 5-hydroxymethylfurfurol from wood. For that, softwood is subjected to catalytic oxidation to yield vanillin and cellulose, followed by acid hydrolysis at 190-240 C of cellulose into levulinic acid and 5- hydroxymethylfurfurol. EFFECT: simplified separation of products and increased their yields. 1 tbl, 6 ex
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