摘要
针对中国冶金资源综合利用现状,为了进一步拓展钢铁渣利用途径,提高其附加值,同时为了给中国农业发展开辟新的肥源,促进中国钢铁工业和农业的可持续发展,试验根据高炉渣的现场生产实际情况,研究了原料成分配比、加热温度、保温时间和冷却方式对合成的缓释型硅钾肥试样微观成分组成的影响。利用合成试样分别在水中和2%柠檬酸中进行钾元素溶出特性分析。研究结果表明,试验条件下合成的缓释型硅钾肥中钾主要以K2MgSi3O8的形式存在,成分配比、加热温度、保温时间和冷却方式对合成试样中成分影响不大,且合成的硅钾肥试样具有良好的缓释性。
Aiming at comprehensive utilization situation of domestic metallurgical resources,in order to further expand routes of blast furnace slag and steel slag utilization and increase its additional value,and the slag can be made to new fertilizer for agriculture,which can promote the sustainable development of steel industry and agriculture.According to actual production situation of blast furnace slag,the test studied the effects of the raw material composition proportion,heating temperature,holding time and cooling pattern on microstructure of the synthesized slowrelease type silicon potash samples.And synthetic samples were used in water and 2%citric acid respectively to carry out dissolution character of potassium element.The obtained conclusions that under the experimental conditions,potassium in synthetic slow-released silicon potash mainly exists in the form of K2MgSi3O8,the composition proportion,heating temperature,holding time and cooling pattern have less effects on the synthetic sample components,and synthesized silicon potash samples have good slow-release performance.
出处
《中国冶金》
CAS
2016年第5期15-19,共5页
China Metallurgy
关键词
综合利用
高炉渣
改质
溶出率
comprehensive utilization
blast furnace slag silicon
modify
dissolution rate
