Preparation method of water reducing agent
The sulfite waste liquor is neutralized with an alkaline solution, sugar is removed by biological fermentation, and evaporated and dried to form a powdery water-reducing agent. It uses the waste liquid from the production of chemical fiber pulp cypress made from the factory's sulfite cooking wood (more than 75% of which is white pine) as raw material. First, the alcohol is extracted through the biological fermentation treatment of sugar removal. The stored alcohol waste liquid of about 10% conce