粉煤灰
粉煤灰
분매회
COAL ASH CHINA
2013年
1期
1-4
,共4页
高铝粉煤灰%SiO2%Al2O3%酸法%碱法%干法烧结%快速液固分离
高鋁粉煤灰%SiO2%Al2O3%痠法%堿法%榦法燒結%快速液固分離
고려분매회%SiO2%Al2O3%산법%감법%간법소결%쾌속액고분리
high alumina fly ash%silica%alumina production%acid process%caustic process%dry sintering%rapid liquid and olid separation
提出了一种低温碱法从高铝粉煤灰中提硅、再采用高效干法烧结提铝、弃渣全部利用的创新工艺流程,实现了无废渣排放及全资源化利用的目标,具有高效节能和绿色环保的突出优势.产品成本低,经济可行,目前已完成工程化试验研究,即将产业化.该技术为处理高铝粉煤灰生产氧化铝及其他高附加值产品的主流新技术,推广应用前景广阔.
提齣瞭一種低溫堿法從高鋁粉煤灰中提硅、再採用高效榦法燒結提鋁、棄渣全部利用的創新工藝流程,實現瞭無廢渣排放及全資源化利用的目標,具有高效節能和綠色環保的突齣優勢.產品成本低,經濟可行,目前已完成工程化試驗研究,即將產業化.該技術為處理高鋁粉煤灰生產氧化鋁及其他高附加值產品的主流新技術,推廣應用前景廣闊.
제출료일충저온감법종고려분매회중제규、재채용고효간법소결제려、기사전부이용적창신공예류정,실현료무폐사배방급전자원화이용적목표,구유고효절능화록색배보적돌출우세.산품성본저,경제가행,목전이완성공정화시험연구,즉장산업화.해기술위처리고려분매회생산양화려급기타고부가치산품적주류신기술,추엄응용전경엄활.
A new innovative process is put forward in this paper, in which silica is extracted firstly from high alumina fly ash by alkaline solution at low temperature, then high effective dry sintering process is used for alumina production from the silica-extracted residues, and finally low caustic residue from the sintering will be fully utilized for construction materials. The use of process can realize full resource utilization of fly ash without any solid disposal, having the advantages of energy saving and lower production cost, which is expected to become a key process for alumina production with high alumina fly ash and other high added-value products. Now pilot-plant test has been completed and its industrialization will be realized soon.
