CONTINUOUS PROCESS FOR PRODUCTION OF CELLULOSE PULP FROM GRASS-LIKE FEEDSTOCK
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
下载链接：
https://www.forestdata.cn/dataDetail.html?id=2dd3fa87-fbdf-47b2-b100-26b4311b02da
下载链接
链接失效反馈官方服务：
资源简介：
The invention discloses an improved continuous process for production of cellulose from glass-like feedstock， which is based on: (i) cooking of comminuted grass-like feedstock in white liquor which contains 0.5-2.0% w/w NaOH and 0.5-25.0% w/w NaCl at 95-100 °C; (ii) bleaching process of the brown cellulose in the white liquor of the same composition with oxygen (O 2) and chlorine (Cl2) at 70-100 °C， yielding bleached cellulose pulp; where， (iii) lignin and other side-products are separated by continuous electrolysis， where the white liquor is regenerated， together with O2 and Cl2 for the bleaching purpose， closing the cycle of the process. The use of milling of the cooked cellulose pulp， as well as separation of the black liquor from the cooking and bleaching steps， enable effective treatment of grass-like feedstock and brown cellulose. The process provides processing of different grass-like feedstock such as stems and leaves of sorghum or maize.
提供机构：
国家林业和草原科学数据中心
创建时间：
2023-02-12
