PROCESS FOR THE SIMULTANEOUS EXTRACTION OF LIGNIN AND SILICA FROM BIOMASS AND ELASTOMER REINFORCED WITH A MIXTURE OF LIGNIN AND SILICA
收藏国家林业和草原科学数据中心2023-02-12 更新2024-03-07 收录
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资源简介：
The invention relates to a process for the simultaneous extraction of lignin and silica from lignocellulosic plant material， characterized in that it comprises the steps of: a) fractionating the lignocellulosic plant material in the presence of an acid solution， so as to obtain a solid fraction comprising cellulose， residual lignin and silica; b) extracting simultaneously lignin and silica from the solid fraction obtained in step a) with a basic solution， at a pH between 10 and 13 and at a temperature between 70°C and 90°C， so as to obtain a liquid phase comprising lignin and silica， and a solid phase; c) separating the liquid phase and of the solid phase obtained in step b)， d) coprecipitating a mixture of lignin and silica comprised in the liquid phase， at a pH between 5 and 6.
提供机构：
国家林业和草原科学数据中心
创建时间：
2023-02-12
