Methods for separating and refining lignin from black liquor and compositions thereof
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 methods and processes for the separation and refining of lignin from spent cooking liquor， called black liquor， present in industrial chemical plants， and compositions thereof. A process is provided for separating black liquor into at least two， three， or four streams selected from: (i) a gaseous stream comprising volatile sulfur compounds; (ii) a lignin-comprising stream produced by extracting lignin into a limited solubility solvent S 1; (iii) a salt stream， comprising solid sodium and sulfate salts; and (iv) a salt-depleted and lignin-depleted aqueous stream comprising hydrocarbons.
提供机构：
国家林业和草原科学数据中心
创建时间：
2023-02-12
