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     Lignosulfonate treatment

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  Building materials production

Due to its astringent, sticking and surface active properties lignosulfonates are used for producing plates: wood chips, wood-fiber and mineral-cotton. As in this production rather deficit, expensive, toxic, phenolformaldehyde, carbamide-phenolformaldehyde loams are used, mixture of modified lignosulfonate (20-30%) and loam lets to get combined binder.

Thus toxication of plates, machined with additives on the base of lignosulfonates, reduces up to 50%. If we use 40 kg/m³ of lignosulfonate while producing of mineral-cotton plates, we can succeed in fall-off of flow volume of toxic phenolic alcohols and therefore significal reducing of noxious emissions to the atmosphere. In addition wares are more firm and water-proof.

   
 
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