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Take alkalined pulping as an example,lignin usually is extracted by acid to raduce pH to 5.5 of the black liquid.After filering use acid again to reduce pH to 2.

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A procedure for isolating the high molecular-weight fraction of a commercial lignosulfonate sample by size exclusion chromatography is described together with the desalting process for that fraction. Conductance of aqueous…

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Sodium lignosulfonate (Na-LS) was used to modified montmorillonite to form lignosulfonate-montmorillonite (LS-MMT). The as-prepared samples were characterized by various equipment to analyze the surface morphology and structure of the pure…

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Also called wood lignin,An aromatic polymer compound found in plant fibers. It has the function of strengthening cell wall and binding fibers in plant tissues. Its composition and properties are…

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About Calcium lignosulfonate Properties,need to make clear what is calcium lignosulfonate firstly.Calcium lignosulfonate (referred wood calcium) is a multi-component polymer anionic surfactant, the appearance of brown powdery substance, slight aroma,…

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Lignin is a poylmer present in the structure of many polar groups, more particularly hydroxyl groups, lignin with strong intermolecular and intermolecular hydrogen bond energy, and therefore the original lignin…

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Lignosulphonate, or lignosulfonate, or sulfonated lignin, (CAS No. 8061-51-6) are water-soluble anionic polyelectrolyte polymers: they are byproducts from the production of wood pulp using sulfite pulping. Most delignification in sulfite…

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Sodium lignosulphonate is a kind of anion surface-active agent made of sulphite whose main raw material is the northeast white pine, following the process of concentration, sugar-exclusion,displacement ,etc. It is used…

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