| SiO2气凝胶-金尾矿催化剂的制备及表征 |
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| 引用本文： | 王香婷,李倩. SiO2气凝胶-金尾矿催化剂的制备及表征[J]. 工业催化, 2019, 27(7): 50-53. DOI: 10.3969/j.issn.1008-1143.2019.07.009 |
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| 作者姓名： | 王香婷 李倩 |
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| 作者单位： | 商洛学院化学工程与现代材料学院,陕西省尾矿资源综合利用重点实验室,陕西 商洛 726000;商洛学院化学工程与现代材料学院,陕西省尾矿资源综合利用重点实验室,陕西 商洛 726000 |
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| 基金项目： | 陕西省教育厅专项科研项目(17JK0237) |
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| 摘 要： | 利用浸渍法将金尾矿与SiO_2气凝胶相结合,制备SiO_2气凝胶-金尾矿催化剂。对催化剂的制备工艺进行探索,考察制备条件对催化剂活性金属负载量的影响,确定催化剂的最佳制备工艺条件,采用SEM、XRD、TG、FT-IR等对催化剂进行表征。结果表明:盐酸浓度3 mol·L~(-1),金尾矿与气凝胶质量比1∶1,浸渍温度45℃、浸渍时间2 h、老化时间48 h为最佳制备工艺条件。在此条件下制得的SiO_2气凝胶-金尾矿催化剂活性金属负载量较大,负载均匀且耐热性能较好。
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| 关 键 词： | 催化剂工程 气凝胶 金尾矿 浸渍法 制备工艺 |
Preparation and characterization of SiO2 aerogel-gold tailing catalysts |
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| Wang Xiangting,Li Qian. Preparation and characterization of SiO2 aerogel-gold tailing catalysts[J]. Industrial Catalysis, 2019, 27(7): 50-53. DOI: 10.3969/j.issn.1008-1143.2019.07.009 |
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| Authors: | Wang Xiangting Li Qian |
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| Affiliation: | Shaanxi key Laboratory of Comprehensive Utilization of Tailings Resource,Department of Chemical Engineering and Modern Material,Shangluo University,Shangluo 726000,Shaanxi,China |
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| Abstract: | SiO2 aerogel-gold tailings catalysts were prepared by impregnation method and characterized by SEM,XRD,TG and FT-IR.Effects of preparation conditions on loading of activity metal were studied.The results showed that the optimal preparation conditions were concentration of hydrochloric acid 3 mol·L-1,ratio of gold tailings to aerogel 1:1,dipping temperature 45 ℃,dipping time 2 h,aging time 48 h.Under this condition loading of activity metal in the SiO2 aerogel-gold tailings catalyst was maximum and in uniformity.The catalysts had good heat resistance. |
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| Keywords: | catalyst engineering aerogel gold tailing dipping method preparation process |
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