Title: Process for preparing phenol and toluene from lignin by utilizing straw plants
Application Number: 200310121807 Application Date: 2003.12.18
Publication Number: 1629300 Publication Date: 2005.06.22
Approval Pub. Date: 2006.07.19 Granted Pub. Date: 2006.07.19
International Classifi-cation: C12P7/22,C12P1/00,C08H5/00
Applicant(s) Name: Technical Institute of Physics and Chemistry of CA Address: 100101
Inventor(s) Name: Yang Zhengyu, Wang Chao
Attorney & Agent: li bai
Abstract:
     The invention provides a process for preparing phenol and toluene from lignin by utilizing straw plants which comprises, at room temperature, mixing stalk plants and thin acid solution by the weight ratio of 1:4.5-8.5, elevating temperature to 90-100 deg. C, keeping constant temperature, quickly dissolving hemicellulose in the stalk, abstracting glucose solution, charging undissolved cellulose in the cellulose hydrolysis glucose solution, obtaining water solution containing glucose and xylose, filtering for separation, thus obtaining nondissolved intermediate lignin for preparing hydroxybenzene and toluene.
Time: 5