The method of isolate
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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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 S1; (iii) a salt stream， comprising solid sodium and sulfate salts; and (iv) a salt-depleted and lignin-depleted aqueous stream comprising hydrocarbons. 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 S1; (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
