| 脱硝催化剂专用钛钨粉中钨盐前驱体的选择研究
脱硝催化剂专用钛钨粉中钨盐前驱体的选择研究 |
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| 引用本文： | 徐 鸿,廖 欣,秦剑锋,吴 涛,李易英,邱 赟.脱硝催化剂专用钛钨粉中钨盐前驱体的选择研究
脱硝催化剂专用钛钨粉中钨盐前驱体的选择研究[J].无机盐工业,2014,46(5):73. |
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| 作者姓名： | 徐 鸿 廖 欣 秦剑锋 吴 涛 李易英 邱 赟 |
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| 作者单位： | 重庆普源化工工业有限公司，重庆 401221 |
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| 摘 要： | 以工业偏钛酸为原料，分别选取三氧化钨（WO3）、钨酸铵（ATT）、偏钨酸铵（AMT）、仲钨酸铵（APT）等4种钨盐前驱体，采用浸渍法制备了SCR脱硝催化剂载体材料钛钨粉。采用XRD、SEM（EDS）、BET等检测手段对样品进行表征，并对由钛钨粉制成的催化剂进行活性测试。实验结果表明：由偏钨酸铵（AMT）制备的钛钨粉晶粒度小，晶格畸变较小，性能比较稳定；颗粒聚集程度最低，形貌较为均一，钨的分布最均匀；比表面积最大，而比表面积在一定范围内越大对催化剂的活性越有益；且由其制备的催化剂脱硝活性最高，接近进口产品。因此，比较而言，AMT是制备钛钨粉较为理想的钨盐前驱体。
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| 关 键 词： | 钛钨粉 脱硝催化剂 钨盐前驱体 |
Selection research on tungsten salt precursor of titanium tungsten powder used for denitration catalyst |
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| XU Hong,LIAO Xin,QIN Jian-Feng,WU Tao,LI Yi-Ying,QIU Bin.Selection research on tungsten salt precursor of titanium tungsten powder used for denitration catalyst[J].Inorganic Chemicals Industry,2014,46(5):73. |
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| Authors: | XU Hong LIAO Xin QIN Jian-Feng WU Tao LI Yi-Ying QIU Bin |
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| Affiliation: | Chongqing Puyuan Chemical Industry Co.，Ltd，Chongqing 401221，China |
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| Abstract: | Titanium tungsten powder （WO3/TiO2） as carrier for denitration（de-NOx） catalyst was prepared by impregnation
method with metatitanic acid as raw material through selecting four kinds of tungsten salt precursors，such as WO3，ATT， AMT，and APT. XRD，SEM（EDS），and BET measurements were used in the characterization and the activity of the sample was tested.Results indicated that the WO3/TiO2 prepared by AMT had small grain size，small lattice distortion，stable performance，the lowest particle conglomeration，relatively uniform morphology，uniform distribution of tungsten salt，and the largest specific surface area（the greater specific surface area in a range is useful for the activity of the catalyst）.And catalyst prepared by it had the highest denitration activity，close to the imported products.Therefore，in comparison，AMT was the ideal tungsten salt precursor for preparing WO3/TiO2 powder. |
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| Keywords: | titanium tungsten powder denitration catalyst tungsten salt precursor |
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