Lime in the Pulp and Paper Industry

Lime is an important ingredient in the manufacture of pulp and paper. It is used in the treatment of liquid wastes as a coagulant in color removal, a filtration conditioner and as a neutralizing agent. It is also used in the recovery of valuable by-products from pulp and paper mill wastes. 

Pulp and paper

Both lime and value-added lime-based products are available from Graymont for use in sulfite-pulping and kraft pulping processes. Graymont can supply quicklime as make up lime and chemical grade calcium carbonate for paper making applications. 

Le saviez-vous ?

There are three distinct types of limestone, defined by their magnesium carbonate (MgCO3) concentrations. These types are Dolomitic (35 to 46% MgCO3), Magnesian (5 to 35% MgCO3) and High calcium (less than 5% MgCO3).