Processing of waste material of radix physochlainae for preparation of fine chemicals after extraction

3rd International Conference on Advanced Materials Research and Applications

He, A.^1 ; Yohannes, A.^1 ; Feng, X.T.^1 ; Yao, S.^1

School of Chemical Engineering, Sichuan University, Chengdu

610065, China^1

关键词: 10 minutes;    Chinese traditional medicine;    Degradation process;    Degree of hydrolysis;    Fine Chemicals;    Large amounts;    Resin materials;    Waste residues;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/170/1/012034/pdf
DOI  :  10.1088/1757-899X/170/1/012034

来源: IOP

【 摘 要 】

Waste residues of Chinese traditional medicine radix physochlainae (Huashanshen) contain a large amount of hemicelluloses after extraction. After the removal of the cellulose and lignin, main components of the solution are different degree of hydrolysis products of hemicelluloses. In the degradation process, hemicelluloses firstly become pentose, and then pentose loses 3 molecules of water and turns into furfural. This study explored a series of conditions of the method; finally the yield of furfural can reach 8.5% (calculated with the weight of raw residues) under the condition of pH of 0.2-0.3, temperature of 104-106°C, hydrolysis duration for 10 minutes. Furfural can be further processed to be resin materials.