Sodium lignosulfonate from alkaline paper-making black liquor through concentration, filtration and spray drying, which belongs to
construction raw materials. It can be used as water reducer in concrete, the water reducing rate is 8-9%. And it also can be used
as retarder, early strength agent, air entraining agent, Road dedusting,Mineral binder,pumping aid agent and so on. If you want to
used in cement, also can be cement grinding agent.