采用加碱焙烧-水浸法从废催化剂氨浸渣中提取钒、钼,通过净化、萃取、铵盐沉钒、加酸沉钼和煅烧,可回收得到较纯的V2O5和MoO3产品.试验结果表明:在焙烧温度750℃,碳酸钠用量15%,焙烧时间45 min,水浸温度80℃,时间15 min,液固比2:1条件下,钒、钼的浸取率可分别达90.13%和91.38%.浸出液经净化除杂后,采用20%(原子分数)三烷基胺(N235)萃取钒钼,在优化条件下,钒、钼的一级萃取率可分别达到99.22%和99.80%;用10%(质量分数)氨水进行反萃,反萃水相中钒、钼浓度分别达到22.81和118.63 g·L-1.反萃水相先用铵盐沉淀法沉钒,再用酸沉法沉钼,钒钼分离效果较好,制取的V2O5和MoO3产品纯度分别达98.06%和99.08%.整个回收工艺中,钒和钼的总回收率分别为87.28%和89.43%.
参考文献
| [1] | Moskalyk R R;Alfantazi A M .Proceeding of vanadium:a review[J].Minerals Engineering,2003,16(09):793. |
| [2] | 段炼,田庆华,郭学益.我国钒资源的生产及应用研究进展[J].湖南有色金属,2006(06):17-20. |
| [3] | 许洁瑜,杨刘晓,王俊龙.中国钼资源利用与可持续发展战略研究[J].中国钼业,2005(04):3-9. |
| [4] | Dufresne P .Hydroprocessing catalysts regeneration and recycling[J].Applied Catalysis A:General,2007,322:67. |
| [5] | 于三三,付念新,高峰,隋智通.一步法合成碳氮化钒的动力学研究[J].稀有金属,2008(01):84-87. |
| [6] | 刘兴利.原生、再生有色金属利用程度的比较研究[J].再生资源循环经济,2008(01):27-32. |
| [7] | M. Marafi;A. Stanislaus .Options and processes for spent catalyst handling and utilization[J].Journal of hazardous materials,2003(2):123-132. |
| [8] | 刘安华,李辽沙,余亮.含钒固废提钒技术及展望[J].金属矿山,2003(10):61-64. |
| [9] | Kar B B .Carbothermic reduction of hydro-refining spent catalyst to extract molybdenum[J].International Journal of Mineral Processing,2005,76(03):143. |
| [10] | 刘焕群.国外废催化剂回收利用[J].中国资源综合利用,2000(12):35. |
| [11] | Chen Y;Feng Q;Shao Y;Zhang G F Ou L M Lu Y P .Investigation on the extraction of molybdenum and vanadium from ammonia leaching residue of spent catalyst[J].International Journal of Mineral Processing,2006,79(01):42. |
| [12] | Y. Chen;Q. Feng;G. Zhang .Study on the recycling of valuable metals in spent Al_2O_3-based catalyst[J].Minerals & Metallurgical Processing,2007(1):30-34. |
| [13] | B.B. Kar;B.V.R. Murthy;V.N. Misra .Extraction of molybdenum from spent catalyst by salt-roasting[J].International Journal of Mineral Processing,2005(3):143-147. |
| [14] | Yoo J S .Metal recovery and rejuvenation of metal-loaded spent catalysts[J].Catalysis Today,1998,44(01):27. |
| [15] | 陈兴龙,肖连生,徐劼,汪劲松.从废石油催化剂中回收钒和钼的试验研究[J].矿冶工程,2004(03):47-49. |
| [16] | 刘公召,隋智通.从HDS废催化剂中提取钒和钼的研究[J].矿产综合利用,2002(02):39-41. |
| [17] | 胡建锋,朱云,胡汉.从废催化剂中综合提取钒和钼[J].稀有金属,2006(05):711-714. |
| [18] | 许碧琼.从废钒触媒中回收钒氧化物[J].化工进展,2002(03):200-202. |
| [19] | Park K H;Mohapatra D;Nam C W .Two stage lenching of activatod spent HDS catalyst and solvent extraction of aluminium using organo-phosphinic extractant,Cyanex 272[J].Journal of Hazardous Materials,2007,148(02):287. |
| [20] | L. J. LOZANO;D. JUAN .LEACHING OF VANADIUM FROM SPENT SULPHURIC ACID CATALYSTS[J].Minerals Engineering,2001(5):543-546. |
| [21] | Lai Y D;Liu J C .Leaching behaviors of Ni ond V from spent catalyst[J].Journal of Hazardous Materials,1997,53(02):213. |
| [22] | 肖瑜.从废钒催化剂中回收钒的实验研究[J].桂林工学院学报,2003(01):93-94. |
| [23] | 陈云 .碱性体系中铝钒钼的溶液化学性质及分离技术研究[D].中南大学,2006. |
| [24] | Enbo W;Jingyang N;Lin X .Study on thermal property of heteropolyacids with keggin structure[J].化学学报,1995,53(08):757. |
| [25] | I.Stratful;M.D.Scrimshaw;J.N.Lester .Comnditions influencing the precipitation of Magnesium Ammonium Phosphate[J].Water research: A journal of the international water association,2001(17):4191-4199. |
| [26] | Battistoni P;Fava G;Pavan P;Musacco A Cecchi F .Phosphate removal in anaerobic liquors by struvite crystallization without addition of chemicals:preliminary results[J].Water Research,1997,31(11):2925. |
| [27] | Kelmers A D .A portion of the system NH3-V2O5-H2O at 30 ℃[J].Journal of Inorganic and Nuclear Chemistry,1961,17(02):168. |
| [28] | 施友富,王海北.废催化剂中钼和钒的分离[J].中国钼业,2004(02):39-41. |
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