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Recovering carboxylic acids from waste solutions in pulp production by adding an extraction agent to the waste solution
Recovering carboxylic acids from waste solutions in pulp production by adding an extraction agent to the waste solution
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机译:通过在废液中添加萃取剂,从纸浆生产中的废液中回收羧酸
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摘要
Recovering and isolating carboxylic acids from waste solutions in pulp production, comprises adding an extraction agent (I) to the waste solution. The waste solution comprises a mixture of carboxylic acid, lignin, water and carboxylic acid esters, furfural and dissolved sugars. (I) is ether, optionally saturated carbohydrates, alcohols, alkylester, arylester, alkylamine, arylamine, cyclic alkylketones, unsaturated alkylketones, methylisobutylketone, methylbutylketone, methylpropylketone, alkyl monocarboxylic acids, aromatics and aldehydes.
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