| 研究生: |
王漢正 Wang, Han-Cheng |
|---|---|
| 論文名稱: |
以化學沉澱法回收廢脫硝觸媒中鉬及釩之研究 Recovery of Molybdenum and Vanadium from Spent SCR Catalysts by Chemical Precipitation |
| 指導教授: |
申永輝
Shen, Yun-Hwei |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 資源工程學系 Department of Resources Engineering |
| 論文出版年: | 2016 |
| 畢業學年度: | 104 |
| 語文別: | 中文 |
| 論文頁數: | 74 |
| 中文關鍵詞: | 回收 、鉬 、釩 、除磷 、除砷 、廢脫硝觸媒 、沉澱法 |
| 外文關鍵詞: | recovery, molybdenum, vanadium, phosphorous, arsenic, spent SCR catalyst, precipitation |
| 相關次數: | 點閱:104 下載:12 |
| 分享至: |
| 查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報 |
本研究針對主成分為MoO3-V2O5/TiO2之SCR廢脫硝觸媒中有價金屬鉬、釩及二氧化鈦進行回收再利用之探討,首先以「氫氧化鈉鹼焙燒+熱水浸漬」方法使鉬、釩溶於液相(浸漬液)中,剩餘之固渣主要為二氧化鈦,再以化學沉澱法純化分離浸漬液中的雜質(鋁、矽、磷、砷),以利回收鉬、釩金屬,研究成果如下:
1.將SCR/NaOH (g/g) = 30/21之SCR廢觸媒於400℃焙燒60 min後再以S/L (g/mL) = 30/100之條件於60℃恆溫60 min生產浸漬液。
2.以「鹼焙燒+熱水浸漬」程序所得SCR廢觸媒浸漬液,其pH值為14,而鉬、釩溶出率為93.2%及85.2%。
3.SCR廢觸媒浸漬液原液pH為14,先以鹽酸調整浸漬液pH值至10,再加入氯化鎂即可使鋁、矽、磷、砷等雜質去除率達到94%以上。
4.純化後之浸漬液pH值為8~9,加入氫氧化鈣於60℃反應60 min後可得到鉬、釩沉澱,其沉澱率為97.9%、99.4%。
5.質量平衡暨流程圖建立。
The purpose of this study is to recover molybdenum and vanadium from spent SCR catalysts by chemical precipitation. First, using “caustic soda baking with hot water leaching method” to make molybdenum and vanadium dissolved in the liquid phase (leachate), the remaining slag was mainly composed of titanium dioxide. Second, using chemical precipitation to separate the impurities in leachate (aluminum, silicon, phosphorus and arsenic).Research results were as follow:
1.21g of caustic soda was mixed with 30g spent SCR catalysts, baked at 400℃ for 1hr and leached with 100mL water at 70℃ for 1hr to produce leachate with pH around 14.
2.By using “caustic soda baking with hot water leaching method” could obtain the extraction of Mo and V were 93.2% and 85.2% respectively.
3.The leachate was first treated by adding HCl to pH 10 and then treated with MgCl2 could remove the impurities (Al, Si, P, As) above 94%.
4.The pH of leachate after purification was 8~9 and added Ca(OH)2 could obtain the precipitation of Mo and V were 97.9% and 99.4%.
5.Set up mass balance and flow chart.
[1].胡和兵,“氮氧化物的汙染與治理方法”,環境保護科學,第32卷,第4期(2006)。
[2].吳以壯,“以選擇性觸媒還原技術同時去除NO及VOCS之效能測試研究”,國立交通大學環境工程研究所碩士論文(2005)。
[3].鄧熙聖,“氮氧化物減量技術-國內外選擇性觸媒還原法應用狀況及技術發展調查”,行政院環保署(1998)。
[4].張國慶,“廢觸媒資源化技術與福誼公司資源化成果”,環保產業雙月刊,第31期,第8-9頁(2005)。
[5].陳偉聖,“廢觸媒資源化技術”,資源循環鏈結推動技術研討會(2010)。
[6].彭容秋,“重金屬冶金學”,中南大學出版社,第1-15頁(1991)。
[7].李洪桂,“濕法冶金學”,中南大學出版社,第30-55頁(2002)。
[8].朱屯,“萃取與離子交換”,冶金工業出版社,第525-570頁(2005)。
[9].林偉凱、蔡潔娃,“金屬資源再生技術發展概況分析”,財團法人金屬研究發展中心,第10-12頁(2009)。
[10].李中光、劉新校、邱惠敏,“重金屬廢水處理技術之進展”,桃園縣大學校院產業環保技術服務團,第23期,第3章(2014)。
[11].三菱化學株式會社,“DIAION離子交換樹脂&合成吸附劑技術手冊Ι”,日本(2001)。
[12].李化全、郭傳華,“廢棄脫硝催化劑中有價元素鈦釩鎢的綜合利用研究”,無機鹽工業,第46卷,第5期(2014)。
[13].林德海、宋寶華、王中原,“廢棄SCR脫硝催化劑資源回收”,山東化工,第42卷(2013)。
[14].朝陽、春暉,“從廢催化劑中提取釩、鉬、鎳的試驗”,鐵合金,第157期(2001)。
[15].楊亮、趙中傳、何利華、霍廣生、陳愛良,“鉬酸銨溶液鎂鹽沉澱法除砷的熱力學分析”,中南大學學報,第43卷,第5期(2012)。
[16].楊亮、趙中傳、陳愛良、劉旭恒、霍廣生,“鉬酸銨溶液中除去砷的研究”,中南大學學報,第42卷,第8期(2011)。
[17].和曉才,“鎢酸鈉溶液中除矽、磷、砷工藝”,雲南冶金,第34卷,第1期(2005)。
[18].羅琳、藤田豐久、治進藤,“從廢棄的鎢金屬製品中回收鎢和釩”,礦冶,第11卷,第1期(2002)。
[19].段冉、李青剛,“從鉬酸鈉溶液中深度除磷製備高純V2O5的研究”,稀有金屬,第35卷,第4期(2011)。
[20].胡任佑,“以化學沉澱法回收廢脫硝觸媒之有價金屬”,國立成功大學資源工程研究所碩士論文(2015)。
[21].Guibal E,Milot C,Tobin JM,“Metal-anion sorption by chitosan beads:Equilibrium and kinetic studies”,Ind Eng Chem Res,37(4),p.1453-1463(1998).
[22].Tkac P,Paulenova A,“Speciation of molybdenum(Ⅵ) in aqueous and organic phases of selected extraction systems”,Sep Sci Technol,43(9-10),p.2641-2657(2008).
[23].Olazabal MA, Orive MM, Fernandez LA, Madariaga JM. “Selective extraction of vanadium (V) from solutions containing molybdenum (VI) by ammonium salts dissolved in toluene”, Solvent Extr Ion Exch,10(4),p.623-635(1992).
[24].Guzman J,Saucedo I,Navarro R,Revilla J,Guibal E.,“Vanadium interactions with chitosan:Influence of polymer protonation and metal speciation”, Langmuir,18(5),p.1567-1573(2002).
[25]. Li Zeng,Qinggang Li,Liansheng Xiao, “ Extraction of vanadium from the leach solution of stone coal using ion exchange resin ”,Hydrometallurgy, 97(3-4),p.194–197(2009).
[26]. 王四華,“釩的富集及尾液淨化工藝”,湖北工業大學研究碩士學位論文,(2010)。
[27]. 鄭彭年,“離子交換用於石煤提釩的探討”,工程設計與研究,76,第35-38頁(1992)。
[28].陳巧馨,“脫硝廢觸媒中鎢與釩回收技術研究”,國立成功大學資源工程研究所碩士論文(2015)。
[29].Joung Woon Kim,Won Geun Lee,In Sung Hwang,Jin Young Lee,Choon Han, “Recovery of tungsten from spent selective catalytic reduction catalysts by pressure leaching”,Journal of Industrial and Engineering Chemistry,28,p.73-77(2015).
[30].S.N. Meher,B.K. Padhi, “Formation of CaV2O6, CaSiO3 and CaMnO3 Salts During Thermo Chemical Leaching for Extraction of Alumina from Red Mud by Lime Soda Ash Sinter Process”, British Journal of Applied Science & Technology,1(3),p.41-52(2011).
[31].H. Chen,H. Wang,I. Yang, Y. Xiao,M. Zheng,Y. Liu,H. Fu, “High Specific Surface Area Rice Hull Based Porous Carbon Prepared for EDLCs”, International Journal of Electrochemical Science,7,p.4889-4897(2012).
[32]. C.J. Deng,L. Zhou,H.X. Zhu,J. Ding,W.J. Yuan, “Molten Salt Synthesis of Forsterite Heat Insulation Material”,IOP Science,18(2011).
[33].Yiting Huo,Zhidong Chang,Wenjun Li,Shixiang Liu,Bin Dong, “Reuse and Valorization of Vanadium and Tungsten from Waste V2O5-WO3/TiO2 SCR Catalyst”,Waste and Biomass Valorization,6(2),p.159-165(2014).
[34].Zhipeng Zhao,Min Guo,Mei Zhang, “Extraction of Molybdenum and Vanadium from The Spent Diesel Exhaust by Ammonia Leaching Method”,Journal of Hazardous Materials,286,p.402-409(2015).
[35].采炬企業有限公司,網址:http://www.trivision.com.tw/products_5.html。
[36].S.Cho,“Properly apply selective catalytic reduction for NOx removal”, Chem. Eng. Prog.,(90),p.39-45(1994).
[37].Takagi Kawai.“Activities of V2O5 / TiO2 andV2O5 / Al2O3 Catalysts for the reduction of NO and NH3 in the presence of O2” ,Ind Eng Che Prod,21(3),p.424-428(1989).
[38].Motonobu K, Katsunori M.“WO3-TiO2 monolithic catalysts for high temperature SCR of NO by NH3:insuence of preparation method on structural and physic-chemical properties”,activity and durability,Applied CatalysisB: Environmental, 72,p.253-261(2007).
[39].Zhu Chong bing, Jin Baosheng, Zhong Zhaoping, etal.“Poisoning effect of K2O on V2O5-WO3 / TiO2 catalysts”, Journal of Southeast University (Natural Science Edition),38(1),p.101-105(2008).
[40]. 山東鴻創環保有限公司,網址:http://www.sdhongchuang.com
[41].賴正昕,劉國棟,黃自立,“選擇性觸媒還原法排煙脫硝系統(SCR De- NOX)控制實務”,工業污染防治,第57章,第110頁(1996)。
[42].Kyung Ho Park,B.Ramachandra Reddy,D.Mohapatra,Chul-Woo Nam. “Hydrometallurgical processing and recovery of molybdenum trioxide from spent catalyst”, Journal of Mineral Processing,80,p.261-265(2006).