1results about How to "Achieve lightweight effect" patented technology

The application discloses a method for preparing light thermal insulation material from modified phosphorite tailings. The phosphorite tailings are modified by certain means, then are uniformly mixed with cement, water reducing agent, coagulation accelerator and the like, then part of water is added and stirred to form uniform slurry A; meanwhile, a foaming agent and a collector are dissolved in water, foamed by a cement foaming machine and fully mixed with the slurry A to obtain the light thermal insulation material. The light thermal insulation material prepared from the phosphorite tailings has a bulk density of only 150-200 kg / m 3 , is non-combustible in grade A, has a normal-temperature thermal conductivity of less than or equal to 0.040 W / (m.K) and a water absorption of less than or equal to 25%. The material can provide a new idea for comprehensive utilization of the phosphorite tailings and support and guarantee for green and healthy development of phosphorus chemical industry.