Research progress on coal gasification coarse slag recycle and reuse technology
The characteristics of coal gasification crude slag(CGCS)were introduced,focusing on the research and development status of CGCS recycle and reuse technology.At present,CGCS was mainly applied to two aspects:construction materials and functional materials.In terms of construction materials,CGCS could be used as raw materials for the preparation of lightweight aggregates,cementitious materials,wall materials,baking-free bricks,geopolymers,etc.In terms of functional materials,CGCS could be used to synthesize porous materials and modified composite materials,and after acid leaching and other treatments,it could be used to extract precious metals.Finally,the future development trend of CGCS resource utilization was pointed out.
coal gasification crude slagrecycle and reusebuilding materialfunctional material