CAJ | 학술논문

石煤中除含有大量二氧化硅和碳元素外，还含有钒、钾、钼、铀等多种伴生金属元素。目前对石煤的利用主要集中在制备五氧化二钒，基本流程是焙烧-浸出-除杂和富集-沉钒和脱氨。综合利用就是在此基础上同时利用其中的两种或者更多种元素。现有石煤提钒工艺仍存在大量问题。首先是湿法提钒工艺对环境污染严重，尤其是废水的污染。其次是所研发工艺对石煤原料的适应性差，针对不同地区的石煤需用不同的提钒工艺。同时绝大部分技术路线没有实现对石煤中碳、二氧化硅等元素的综合利用。文章通过对各类技术路线的系统分析，设想了一条能够实现碳、钒、硅和钾综合利用的火法冶炼新工艺。
석매중제함유대량이양화규화탄원소외，환함유범、갑、목、유등다충반생금속원소。목전대석매적이용주요집중재제비오양화이범，기본류정시배소-침출-제잡화부집-침범화탈안。종합이용취시재차기출상동시이용기중적량충혹자경다충원소。현유석매제범공예잉존재대량문제。수선시습법제범공예대배경오염엄중，우기시폐수적오염。기차시소연발공예대석매원료적괄응성차，침대불동지구적석매수용불동적제범공예。동시절대부분기술로선몰유실현대석매중탄、이양화규등원소적종합이용。문장통과대각류기술로선적계통분석，설상료일조능구실현탄、범、규화갑종합이용적화법야련신공예。
China is rich in coal stone, and the total reserves rank first in the world. Coal stone consists of V, K, Mo, U, except SiO2 and C. Now the main use of coal stone is extracting vanadium to produce V2O5, the basic process is roast-extraction-decontaminate-deposition and deamination. Based on this process, comprehensive utilization means to utilize at least two or more elements. The above process exist many problems. Firstly, extract vanadium by hydrometallurgy brings serious destruction of environment, especially pollution of water. Secondly, the raw materials is weak adaptable for the process, technology vary widely with different coal stone. Finally, most processes have not realized to utilize the C and SiO2 in the coal stone. By analyzing all kinds of processes, this paper designs a new process to utilize C, V, Si, K by pyrometallurgy.