Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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 (Autor:in) / LIANG YUANPENG (Autor:in) / ZHONG HONGLI (Autor:in) / WU YIDE (Autor:in) / YUAN TUZHONG (Autor:in) / ZHANG WENDONG (Autor:in) / HU PINBIN (Autor:in) / GU HUA (Autor:in) / XIN JIAN (Autor:in) / WANG YONG (Autor:in)
10.04.2020
Patent
Elektronische Ressource
Chinesisch
Vertical kilns for high-calcium lime
Engineering Index Backfile | 1942
Lime kiln calcining process for active calcium oxide production
Europäisches Patentamt | 2020
|Reactivity of burnt clays in high calcium lime
British Library Conference Proceedings | 1996
|Europäisches Patentamt | 2023
|