A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-calcium active lime
The invention belongs to the field of materials, and particularly relates to high-calcium active lime. A preparation method comprises the steps of pretreatment, activation, impurity removal and the like. According to the method, low-grade limestone with the total content of SiO2 and Fe2O3 being greater than 3% is utilized; the calcium content of the active lime produced by the process disclosed bythe invention reaches 97.3%, the carbon content is lower than 0.5%, the sulfur content is lower than 0.02%, the SiO2 content is lower than 1.0%, and the Fe2O3 content is lower than 1.0%, the producedactive lime has few impurities and can reach the standards of various fields, and the application range is expanded.
本发明属于材料领域，具体涉及一种高钙活性石灰；通过预处理、活化、除杂等步骤，对SiO、FeO总含量＞3％的低品级石灰石进行利用，经过本发明的工艺生产出的活性石灰含钙量达到97.3％，碳含量低于0.5％，硫含量低于0.02％，SiO含量低于1.0％，FeO含量低于1.0％，使生产出的活性石灰杂质少、可达到各领域的标准，扩大了应用范围。
High-calcium active lime
The invention belongs to the field of materials, and particularly relates to high-calcium active lime. A preparation method comprises the steps of pretreatment, activation, impurity removal and the like. According to the method, low-grade limestone with the total content of SiO2 and Fe2O3 being greater than 3% is utilized; the calcium content of the active lime produced by the process disclosed bythe invention reaches 97.3%, the carbon content is lower than 0.5%, the sulfur content is lower than 0.02%, the SiO2 content is lower than 1.0%, and the Fe2O3 content is lower than 1.0%, the producedactive lime has few impurities and can reach the standards of various fields, and the application range is expanded.
本发明属于材料领域，具体涉及一种高钙活性石灰；通过预处理、活化、除杂等步骤，对SiO、FeO总含量＞3％的低品级石灰石进行利用，经过本发明的工艺生产出的活性石灰含钙量达到97.3％，碳含量低于0.5％，硫含量低于0.02％，SiO含量低于1.0％，FeO含量低于1.0％，使生产出的活性石灰杂质少、可达到各领域的标准，扩大了应用范围。
High-calcium active lime
一种高钙活性石灰
ZHANG LONG (author) / LIANG YUANPENG (author) / ZHONG HONGLI (author) / WU YIDE (author) / YUAN TUZHONG (author) / ZHANG WENDONG (author) / HU PINBIN (author) / GU HUA (author) / XIN JIAN (author) / WANG YONG (author)
2020-04-10
Patent
Electronic Resource
Chinese
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