| 锰浸出渣制备白炭黑的工艺研究 |
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| 引用本文： | 农桂银,王晶,杜冬云,邓永光,韦慷,朱汉明,张道洪.锰浸出渣制备白炭黑的工艺研究[J].湖南有色金属,2012(1):43-45. |
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| 作者姓名： | 农桂银 王晶 杜冬云 邓永光 韦慷 朱汉明 张道洪 |
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| 作者单位： | [1]中信大锰矿业有限责任公司,广西 南宁 530028 [2]催化材料科学国家民委-教育部重点实验室,中南民族大学,湖北 武汉 430074 |
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| 摘 要： | 以工业锰浸出渣、氢氧化钠、硫酸为主要原料通过沉淀法制备白炭黑,研究了锰渣与氢氧化钠的配比、氢氧化钠浓度、反应时间、反应温度等因素对白炭黑回收率的影响。获得了制备白炭黑的最佳工艺条件为:反应温度为140℃、氢氧化钠/锰渣的质量比为0.8∶1、反应时间为8 h,白炭黑的回收率达到44%。通过红外光谱、TEM等技术表征了白炭黑的结构,粒径为50nm左右,经测试二氧化硅的含量达到90.5%,达到国家标准。
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| 关 键 词： | 锰浸出渣 白炭黑 沉淀法 制备 |
Technology Research on Preparation of Silica White by Manganese Slag |
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| NONG Gui-ying,WANG Jing,DU Dong-yun,DENG Yong-guang,WEI Kang,ZHU Han-ming,ZHANG Dao-hong.Technology Research on Preparation of Silica White by Manganese Slag[J].Hunan Nonferrous Metals,2012(1):43-45. |
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| Authors: | NONG Gui-ying WANG Jing DU Dong-yun DENG Yong-guang WEI Kang ZHU Han-ming ZHANG Dao-hong |
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| Affiliation: | 1.CITIC Dameng Mining Industries Limited,Nanning 530028,China;2.Key Laboratory ofCatalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education,South-central University for Nationalities,Wuhan 430074,China) |
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| Abstract: | Silica white was prepared by the main materials manganese slag,sodium hydroxide and sulfuric acid in this paper by precipitation method.All the reaction conditions for effecting yield of silica white were discussed in detail,including mass ratio of sodium hydroxide and manganese slag,sodium hydroxide concentration,reaction time and reaction temperature.The optimum reaction conditions with yield of 44% obtained were followed:reaction temperature 140 ℃,mass ratio of sodium hydroxide to manganese slag 0.8∶1,reaction time 8 hours.Chemical structure of silica white was also characterized by FT-IR and its diameter size was about 50nm from TEM technology,and the content of silicon dioxide was 90.5% which reached that of GB. |
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| Keywords: | manganese slag silica white precipitation preparation |
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