Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method for xonotlite type heat-preserving material
The invention provides a preparation method for a xonotlite type heat-preserving material. According to the invention, the xonotlite type heat-preserving material is prepared by utilizing sub-molten salt dealuminized red mud and sub-molten salt dealuminized fly ash as calcareous and siliceous raw materials through a dynamic hydrothermal reaction. The method in the invention solves problems of high cost and high resource consumption due to synthesis of xonotlite from native silicon sources and calcium sources; a novel solution way is provided for emission problems of large quantities of two solid wastes of fly ash and Bayer process red mud; meanwhile, the sub-molten salt dealuminized red mud and fly ash, after drying and crushing, do not need high energy consumption processes like activation and high-temperature treatment, and can directly undergo a thermal reaction; thus, heat-preserving material cost is greatly reduced, and economic benefits are improved; meanwhile, pollutions of two solid wastes to the environment are indirectly solved.
Preparation method for xonotlite type heat-preserving material
The invention provides a preparation method for a xonotlite type heat-preserving material. According to the invention, the xonotlite type heat-preserving material is prepared by utilizing sub-molten salt dealuminized red mud and sub-molten salt dealuminized fly ash as calcareous and siliceous raw materials through a dynamic hydrothermal reaction. The method in the invention solves problems of high cost and high resource consumption due to synthesis of xonotlite from native silicon sources and calcium sources; a novel solution way is provided for emission problems of large quantities of two solid wastes of fly ash and Bayer process red mud; meanwhile, the sub-molten salt dealuminized red mud and fly ash, after drying and crushing, do not need high energy consumption processes like activation and high-temperature treatment, and can directly undergo a thermal reaction; thus, heat-preserving material cost is greatly reduced, and economic benefits are improved; meanwhile, pollutions of two solid wastes to the environment are indirectly solved.
Preparation method for xonotlite type heat-preserving material
MA SHUHUA (Autor:in) / GUO XIYAO (Autor:in) / ZHENG SHILI (Autor:in) / ZHANG YI (Autor:in)
25.11.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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