在实验室条件下研究了Na2CO3对硼铁矿含碳球团还原熔分行为、脱硫率以及熔分富硼渣性能的影响.Na2CO3在一定程度上可以提高硼铁矿含碳球团的还原速率.随着Na2CO3配比的增加,含碳球团的熔分效果逐渐变差,主要原因在于Na2CO3会显著提高富硼渣的熔点,导致球团难以熔分.当球团中Na2CO3的质量分数从0增加至6％时,珠铁中的硫含量(质量分数)逐渐从0.27％降低至0.084％.与此同时,缓冷富硼渣的萃取率从86.46％降低至59.52％.实验结果表明,Na2CO3的加入会对硼铁矿含碳球团的熔分效果和富硼渣中硼的提取产生不利影响.
参考文献
| [1] | 刘然;薛向欣;姜涛;张淑会;黄大威.硼铁矿综合利用概况与展望[J].矿产综合利用,2006(2):33-37. |
| [2] | l.Sulan.Pyrometallurgical Separation of Boron from Iron in Ludwigite Ore[J].ISIJ International,199810(10):1077-1079. |
| [3] | Guang WANG;Jingsong WANG;Yingui DING.New Separation Method of Boron and Iron from Ludwigite Based on Carbon Bearing Pellet Reduction and Melting Technology[J].ISIJ International,20121(1):45-51. |
| [4] | Guang Wang;Yin-gui Ding;Jing-song Wang;Xue-feng She;Qing-guo Xue.Effect of carbon species on the reduction and melting behavior of boron-bearing iron concentrate/carbon composite pellets[J].矿物冶金与材料学报,2013(06):522-528. |
| [5] | 李艳军;高太;韩跃新.硼铁矿工艺矿物学研究[J].有色矿冶,2006(6):14-16. |
| [6] | Hongming WANG;Tingwang ZHANG;Hua ZHU.Effect of B_2O_3 on Melting Temperature, Viscosity and Desulfurization Capacity of CaO-based Refining Flux[J].ISIJ International,20115(5):702-706. |
| [7] | Jian YANG;Tomoyuki MORI;Mamoru KUWABARA.Mechanism of Carbothermic Reduction of Hematite in Hematite-Carbon Composite Pellets[J].ISIJ International,200710(10):1394-1400. |
| [8] | Amitava BASUMALLICK.Influence of CaO and Na_2CO_3 as Additive on the Reduction of Hematite-Lignite Mixed Pellets[J].ISIJ International,19959(9):1050-1053. |
| [9] | Shinichi INABA;Yoshio KIMURA.Behavior of Sulfur in the Carbon-bearing Iron Oxide Pellet during Heating[J].ISIJ International,200412(12):2112-2114. |
| [10] | 段东平;万天骥;郭占成.硫在含碳球团内的转化行为[J].钢铁研究学报,2005(5):16-21. |
| [11] | JONG-WAN KIM;HAE-GEON LEE.Thermal and Carbothermic Decomposition of Na_2CO_3 and Li_2CO_3[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,20011(1):17-24. |
| [12] | Takashi MATSUI;Natsuo ISHIWATA;Yoshiaki HARA.Influence of Gangue Composition on Melting Behavior of Coal-Reduced Iron Mixture[J].ISIJ International,200412(12):2105-2111. |
| [13] | K. Satoh;T. Noguchi;M. Hino.Reduction and Carburization of Iron Oxide by Carbonaceous Materials[J].Steel Research International,201010(10):834-840. |
| [14] | Hyun-Soo KIM;Jang Gyu KIM;Yasushi SASAKI.The Role of Molten Slag in Iron Melting Process for the Direct Contact Carburization: Wetting and Separation[J].ISIJ International,20108(8):1099-1106. |
| [15] | Hyun-Soo KIM;Youn-Bae KANG;Jang Gyu KIM.The Role of Iron Oxide Bearing Molten Slag in Iron Melting Process for the Direct Contact Carburization[J].ISIJ International,20111(1):166-168. |
| [16] | 李杰;樊占国.富硼渣钠化法制备硼砂过程中的影响因素[J].东北大学学报（自然科学版）,2009(12):1755-1758. |
| [17] | PEIXIN ZHANG;ZHITONG SUI.Effect of Factors on the Extraction of Boron from Slags[J].Metallurgical and Materials Transactions, B. Process metallurgy and materials processing science,19952(2):345-351. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%