Method and apparatus for manufacturing lignophenol derivative

Details Method and apparatus for manufacturing lignophenol derivative Method and apparatus for manufacturing lignophenol derivative

C - Chemistry, Metallurgy

08

B

C08B 1/00 (2006.01) C07H 1/08 (2006.01) C13K 1/02 (2006.01) C07G 1/00 (2006.01)

Patent

CA 2544323

A process in which a lignophenol derivative is efficiently yielded/recovered from a lignocellulosic substance through a treatment with a phenol derivative and an acid, and sugar recovery from the liquid acid/sugar mixture obtained simultaneously therewith and use of the sugar are facilitated. The process for preparing a lignophenol derivative and a liquid acid/sugar mixture is characterized by subjecting a liquid reaction mixture comprising a lignocellulosic substance, a phenol derivative, and an acid to solid-liquid separation to thereby separate the mixture into a lignophenol derivative as a solid phase and an acid/sugar mixture as a liquid phase and subjecting the lignophenol derivative separated to deacidification/cleaning.

L'invention concerne un procédé dans lequel, d'une part, un dérivé de lignophénol est efficacement produit/récupéré à partir d'une substance lignocellulosique par un traitement utilisant un dérivé de phénol et un acide et, d'autre part, un sucre peut être récupéré simultanément et facilement à partir du mélange acide/sucre liquide obtenu. Ce procédé destiné à la préparation d'un dérivé de lignophénol et d'un mélange acide/sucre liquide consiste : à soumettre un mélange réactionnel liquide comprenant une substance lignocellulosique, un dérivé de phénol et un acide à une séparation solide-liquide pour ainsi diviser le mélange en un dérivé de lignophénol sous forme de phase solide et en un mélange acide/sucre sous forme de phase liquide ; puis à soumettre le dérivé de lignophénol séparé à une désacidification et à un nettoyage.

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