A new procedure for the destructuring of vegetable matter at atmospheric pressure by a catalyst/solvent system of formic acid/acetic acid.Applied to the pulping of triticale straw

Autor: Michel Delmas, Yves Le Bigot, Gerard Avignon, Hoang Quoc Lam
Rok vydání: 2001
Předmět:
Zdroj: Industrial Crops and Products. 14:139-144
ISSN: 0926-6690
DOI: 10.1016/s0926-6690(01)00077-2
Popis: The selective separation of cellulose, hemicelluloses and lignin of triticale straw is achieved, at atmospheric pressure, using a mixture of formic acid/acetic acid/water. The chemical and mechanical characteristics of the obtained pulp are good. The majority of the silica derivatives are retained in the pulp because of the acidic cooking conditions. The cooking agents are easily recyclable without combustion of the cooking liquor. The lignin and sugars are also isolated. This method of cooking the vegetable matter provides paper pulp which is very well suited to a TCF bleaching sequence. Use of this sequence produces bleached pulps of very satisfactory chemical and optical characteristics.
Databáze: OpenAIRE