Sodium lignosulfonate to pulp mill as raw material, to the waste solution by adding concentrated sulfuric acid 50%, stirring 4-6 hours, and then with lime milk, by sedimentation, filtration, beating, acid, sodium carbonate Conversion, concentration, drying products. Is a natural polymer, with a strong dispersion, due to the different molecular weight and functional groups have different degrees of dispersion, is a surface active material, can be adsorbed on the surface of a variety of solid particles can be carried out Metal ion exchange, but also because of its organizational structure of the existence of a variety of active groups, which can produce condensation or hydrogenation with other compounds.
Calcium lignosulfonate commonly known as calcium, is produced by the sulfite method to lignosulfonate as the main component of wood pulp waste, the sugar treatment, concentrated or spray dried from. Is a multi-component polymer polymer anionic surfactant, the appearance of brown powder material, slightly aromatic odor, molecular weight is generally between 800 to 10000, with a strong dispersion, adhesion, chelating The Has a good water solubility. It can be used alone as a water reducing agent, but also with naphthalene-based water-reducing agent, amino-based water-reducing agent compound use.
Magnesium Lignosulfonate is a pale yellow powder, the effective material is magnesium lignosulfonate, is a derivative of phenylpropane, anionic surfactant, with good water solubility. Strong adhesion, enhanced viscosity The stronger the strength, when the concentration of more than 50%, the degree of adhesion significantly improved. Chemical stability, not easy to burn, not easy to explode. Can be compounded, deep processing into different uses of the product.
Alkaline wood commonly known as xylose powder, it is the use of alkaline pulping waste through the latest production process, spray drying made. It is a kind of macromolecule anion active material, which can exchange gold ions with molecular weight of 1000-100000. The alkali lignin has good adhesion, and the viscosity of the aqueous solution increases with the increase of the concentration. When the concentration reaches 35% (by weight) Viscosity increased significantly. As the colloidal molecules in the alkali lignin have charged nuclei and solvated shells, constitute a hydrophilic gene, which has a certain surface activity, mixed with concrete can play a certain water reduction effect.
