Lignosulphonates

     Sodium Lignosulphonates is a by-product from production of sulphite wood pulp.  

 

     Lignosulfonates can be used for various applications:

 

     The largest use for lignosulfonates is as plasticizers in concrete prodction, where they allow concrete to be made with less water while maintaining the ability of the concrete to flow. Lignosulfonates are also used during the production of cement, where they act as grinding aids in the cement mill and as a rawmix slurry deflocculant.
 
 
     Lignosulfonates are also used for themanufacturing of plasterboard to decrease the amount of water required to make the stucco flow and form the layer between two sheets of paper. The reduction in water content allows lower kiln temperatures to dry the plasterboard, saving energy.
 
 
     The ability of lignosulfonates to reduce the viscosity of mineral slurries is used to advantage in oil drilling mud, where it replaced tannic acids from quebracho.
 
     Lignosulfonates are used to disperse pesticides, dyes, carbon black, and other insoluble solids and liquids into water. They are used in tanning leather. They are also used to suppress dust on unpaved roads.