Month: February 2021

In order to use lignosulfonates (a by-product of pulp and paper processes) as an effective dispersant of coal water slurry five purified sodium lignosulfonate (SL) samples with different molecular weights…

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The three purified Sodium lignosufonate fractions with different molecularweights were obtained using ultrafiltration. With theincrease in molecular weight, the content of phenolichydroxyl group, sulfonic acid group, and carboxyl groupdecreases, the…

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The content of catechol of Sodium lignosulfonate with different molecularweights is different based on the different content of hydrophilic functional groups, which would affect the reductionof SL on dyestuff caused…

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Both the adsorption of SL on the fiber surface and thedark brown color of SL would cause fiber staining, whichtends to distort the authentic color of dye on the fabric.The…

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Although lignosulfonate has been widely used as dye dispersant, it has some disadvantages. On the one hand, thecolorless catecholic structure in lignin is easy to oxidize toquinonoid structure in lignin…

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Lignin is the largest reservoir of aromatic compounds on earth and has great potential to be used in many industrial applications. Alternative methods to produce lignosulfonates from spent sulfite pulping…

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