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| 泡沫银制备工艺研究 | |
| 引用本文： | 罗远辉,郭琳,蒋汉嬴,杨松青.泡沫银制备工艺研究[J].有色金属(冶炼部分),2002(5):43-45. |
| 作者姓名： | 罗远辉 郭琳 蒋汉嬴 杨松青 |
| 作者单位： | 1. 北京有色金属研究总院,北京,100088 2. 广东教育学院化学系,广州,510303 3. 中南大学,长沙,410083 |
| 摘 要： | 采用化学镀———电沉积———热处理工艺制备了泡沫银 ,其技术指标为 :银含量 >99% ;铁含量 <0 0 1% ;抗拉强度 >1 2 5MPa ;孔隙率 95 %～ 98% ;比表面积 >1 0m2 /g。考察了电沉积和热处理的工艺技术条件对泡沫银性能的影响。把制得的泡沫银用作甲醇氧化制备甲醛的催化剂 ,甲醇转化率为 96%～ 98% ,甲醛产率为 92 %～ 95 %。 |
| 关 键 词： | 泡沫银 电沉积 热处理 催化剂 甲醇 甲醛 |
| 文章编号： | 1007-7545(2002)05-0043-03 |
Preparation Study on Foam Silver |
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| LUO Yuan hui GUO Lin JIANG Han ying,YANG Song qing.Preparation Study on Foam Silver[J].Nonferrous Metals(Extractive Metallurgy),2002(5):43-45. | |
| Authors: | LUO Yuan hui GUO Lin JIANG Han ying YANG Song qing |
| Affiliation: | LUO Yuan hui 1 GUO Lin 2 JIANG Han ying 3,YANG Song qing 3 |
| Abstract: | The preparation of foam silver with chemical plating electroplating heat treatment technology is studied The silver content is over 99%, iron content is below 0 01%, tensile strength is over 1 25MPa, porosity is 95%～98%, surface area is over 1 0m 2/g The influences of electroplating and heat treatment technology conditions on the properties of foam silver have been investigated The foam silver is been used as the catalyst of the formaldehyde preparation with methanol, the transforming proportion of methanol is 96%～98%, and the product proportion of formaldehyde is 92%～95% |
| Keywords: | Foam silver Electroplating Heat treatment Catalyst Methanol Formaldehyde |
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