This method will produce depolymerized lignins substantially free from sodium compounds. Black liquor supplied from a pulping process is utilized for providing a mixture of depolymerized lignins dispersed and dissolved in absolution containing sodium hydroxide. The mixture is then separated to form depolymerized lignins and a solution containing sodium hydroxide. Following separation, the depolymerized lignins are then extracted with water to produce an extractate containing water soluble sodium compounds. The extracted depolymerized lignins, containing sodium compounds, are then reacted with an acid to form sodium salts. The solution containing sodium salts is then separated from the extracted depolymerized lignins to produce substantially sodium free depolymerized lignins. The separated solution containing sodium hydroxide is combined with the extractate and the combination, subsequent to removal of water, is made available to reuse for recycle to depolymerize, disperse and dissolve additional lignins. As a result a mixture containing depolymerized lignins is created.

_ este método producir despolimerizar lignins substancial libre sodio componer. _ negro licor supplied uno pulping proceso ser utilizar para providing uno mezcla despolimerizar lignins dispersar y disolver en absolución containing sodio hidróxido. _ mezcla ser entonces separar forma despolimerizar lignins y uno solución containing sodio hidróxido. _ following separación, despolimerizar lignins ser entonces extracted con agua producir uno extractate containing soluble en agua sodio componer. _ extracted despolimerizar lignins, containing sodio componer, ser entonces reaccionar con uno ácido forma sodio sal. _ solución containing sodio sal ser entonces separar extracted despolimerizar lignins producir substancial sodio libre despolimerizar lignins. _ separar solución containing sodio hidróxido ser combined con extractate y combinación, subsecuente retiro agua, ser hacer disponible reutilizar para reciclar despolimerizar, dispersar y disolver adicional lignins. _ consecuentemente uno mezcla containing despolimerizar lignins ser crear. _

 
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