Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Industrial waste salt slag curing agent and curing method
The invention belongs to the field of hazardous waste treatment, and particularly relates to an industrial waste salt slag curing agent which comprises the following components in percentage by mass:70%-75% of high-iron sulphoaluminate, 15%-20% of quartz powder, 1%-5% of calcium chloride and 1%-5% of lithium chloride. The invention also relates to a method for curing industrial waste salt slag byusing the curing agent. By adopting the scheme, during curing, silicate, aluminum oxide, silicon dioxide and the like generate a novel aluminosilicate cementing material through an alkali excitationreaction in an alkaline environment provided by cement, and the material has an amorphous and semi-crystalline three-dimensional aluminosilicate structure formed by mutual winding and interaction of Si-O-Si chains and Al-O-Si chains; a large number of Na < + > and K < + > ions existing in the industrial waste salt slag can be embedded into network gaps and are mutually balanced with negative charges in a system, so that solidification of the industrial waste salt slag is achieved; in addition, a large number of cavity structures exist in the three-dimensional structure, other components of thesalt slag can be wrapped in the cavity structures, and the curing effect is further enhanced.
本发明属于危险废物处理领域，具体涉及一种工业废盐渣固化剂，按质量百分含量计包括：高铁硫铝酸盐70％～75％，石英粉15％～20％，氯化钙1％～5％，氯化锂1％～5％。本发明还涉及一种利用上述固化剂对工业废盐渣进行固化处理的方法。采用上述方案，固化时，在水泥提供的碱性环境下，硅酸盐、三氧化二铝、二氧化硅等通过碱激发反应生成一种新型的硅铝酸盐胶凝材料，这种材料具有Si‑O‑Si链和Al‑O‑Si链彼此互相缠绕以及交互形成的无定形和半结晶的三维硅铝酸盐结构，能将工业废盐渣中存在的大量Na+、K+等离子镶嵌在网络间隙中，与体系中的负电荷互相平衡，实现工业废盐渣的固化；另外，这种三维结构内部还存在大量的空腔结构，可以将盐渣其他的成分包裹在内部，进一步加强固化效果。
Industrial waste salt slag curing agent and curing method
The invention belongs to the field of hazardous waste treatment, and particularly relates to an industrial waste salt slag curing agent which comprises the following components in percentage by mass:70%-75% of high-iron sulphoaluminate, 15%-20% of quartz powder, 1%-5% of calcium chloride and 1%-5% of lithium chloride. The invention also relates to a method for curing industrial waste salt slag byusing the curing agent. By adopting the scheme, during curing, silicate, aluminum oxide, silicon dioxide and the like generate a novel aluminosilicate cementing material through an alkali excitationreaction in an alkaline environment provided by cement, and the material has an amorphous and semi-crystalline three-dimensional aluminosilicate structure formed by mutual winding and interaction of Si-O-Si chains and Al-O-Si chains; a large number of Na < + > and K < + > ions existing in the industrial waste salt slag can be embedded into network gaps and are mutually balanced with negative charges in a system, so that solidification of the industrial waste salt slag is achieved; in addition, a large number of cavity structures exist in the three-dimensional structure, other components of thesalt slag can be wrapped in the cavity structures, and the curing effect is further enhanced.
本发明属于危险废物处理领域，具体涉及一种工业废盐渣固化剂，按质量百分含量计包括：高铁硫铝酸盐70％～75％，石英粉15％～20％，氯化钙1％～5％，氯化锂1％～5％。本发明还涉及一种利用上述固化剂对工业废盐渣进行固化处理的方法。采用上述方案，固化时，在水泥提供的碱性环境下，硅酸盐、三氧化二铝、二氧化硅等通过碱激发反应生成一种新型的硅铝酸盐胶凝材料，这种材料具有Si‑O‑Si链和Al‑O‑Si链彼此互相缠绕以及交互形成的无定形和半结晶的三维硅铝酸盐结构，能将工业废盐渣中存在的大量Na+、K+等离子镶嵌在网络间隙中，与体系中的负电荷互相平衡，实现工业废盐渣的固化；另外，这种三维结构内部还存在大量的空腔结构，可以将盐渣其他的成分包裹在内部，进一步加强固化效果。
Industrial waste salt slag curing agent and curing method
一种工业废盐渣固化剂及固化方法
WU WEILIN (Autor:in) / CUI LIANGLIANG (Autor:in) / GUO PENGFEI (Autor:in) / ZHENG CHUANYANG (Autor:in) / HU CHANGJIANG (Autor:in) / GAO MINGZHENG (Autor:in)
12.03.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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