Collaborative resource utilization of hazardous chromium ore processing residue (COPR) and C-bearing dust during limonitic laterite sintering process
Collaborative resource utilization of hazardous chromium ore processing residue (COPR) and C-bearing dust during limonitic laterite sintering process
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褐铁矿红土烧结过程中危险铬矿加工残渣（COPR）和含碳粉尘的协同资源化利用
DOI：
10.1016/j.jclepro.2022.135821
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发表时间：
2022-12
影响因子：
11.1
通讯作者：
Tao Jiang
中科院分区：
文献类型：
--
作者：
Yikang Tu;Yuanbo Zhang;Zijian Su;Tao Jiang
铬盐工业产生大量的铬渣，铬渣中含有剧毒的Cr（Ⅵ），属于危险固体废物。钢铁工业含碳粉尘是一种典型的固体废弃物，表面活性很差。铁矿石烧结工艺具有大规模无害化利用含碳粉尘和碳渣的潜力。本研究提出了褐铁矿烧结过程中COPR与含碳粉尘联合利用的新途径。COPR和含碳粉尘对渗透率的负面影响被含碳粉尘中额外碳的燃料属性所抵消。结果表明，当配加6%的COPR和8%的含碳粉尘时，烧结矿的转鼓指数和成品率与空白试样基本相当。在烧结过程中，有毒的Cr（VI）被还原为Cr（III），并富集在高铝尖晶石相中。所得到的烧结物被鉴定为无毒的，并且在整个清洁利用过程中没有产生二次废物。
Much chromite ore processing residue (COPR), which is defined as hazardous solid waste due to virulent Cr (Ⅵ), is produced from chromium salt industry. C-bearing dust from steel industry is a kind of typically solid waste with poor surface activity. The iron ore sintering process has the potential on large-scale harmless utilization of COPR and C-bearing dust. This study proposes a new approach of co-utilizing COPR and C-bearing dust during limonitic laterite sintering process. The negative influence of COPR and C-bearing dust on permeability was offset by the fuel attribute of extra C from C-bearing dust. The results indicate that, while 6% COPR and 8% C-bearing dust were added, the tumble index and yield of the sinters were basically equal to those of the blank samples. The toxic Cr (Ⅵ) was reduced to Cr (Ⅲ) which was concentrated in high alumina spinel phases during the sintering process. The obtained sinters were identified as nontoxic, and no secondary waste was generated throughout the clean utilization process.
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影响因子：
13.6
作者：
Longlong Zhang;Yue Gao;Q. Yue;Ping Zhang;Yu Wang;B. Gao
通讯作者：
Longlong Zhang;Yue Gao;Q. Yue;Ping Zhang;Yu Wang;B. Gao
影响因子：
13.6
作者：
Yan Sun;Yaguang Du;Jirong Lan;Weixi Zhan;Tian C. Zhang
通讯作者：
Yan Sun;Yaguang Du;Jirong Lan;Weixi Zhan;Tian C. Zhang
DOI：
10.4028/www.scientific.net/amr.746.505
发表时间：
2013-08
期刊：
Advanced Materials Research
影响因子：
--
作者：
E. Tang;Xueming Liang;Ju Li;Qiang Zhou
通讯作者：
E. Tang;Xueming Liang;Ju Li;Qiang Zhou
影响因子：
11.1
作者：
Minxian Zhuang;Hui Wang;Lu Qi;Liqiang Cui;Guixiang Quan;Jinlong Yan
通讯作者：
Minxian Zhuang;Hui Wang;Lu Qi;Liqiang Cui;Guixiang Quan;Jinlong Yan
影响因子：
6.8
作者：
Xue Tang;Y. Huang;Ying Li;Li Wang;X. Pei;Dan Zhou;P. He;S. Hughes
通讯作者：
Xue Tang;Y. Huang;Ying Li;Li Wang;X. Pei;Dan Zhou;P. He;S. Hughes