Chin. J. Process Eng. ›› 2017, Vol. 17 ›› Issue (2): 345-350.DOI: 10.12034/j.issn.1009-606X.216275
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GAO Ming1*, CHEN Shun2, SUN Ying-juan1, CHENG Gen-yin3
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高 明1*, 陈 顺2, 孙英娟1, 程根银3
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Key words: coal gangue, iron oxide red, response surface methodology
摘要: 以煤矸石高效利用为目的,采用响应曲面实验设计优化煤矸石铝铁分离液制备氧化铁红颜料工艺,研究了Na2CO3浓度、反应温度和Fe(II)浓度等因素对氧化铁红颜料纯度的影响;在单因素实验基础上,对实验设计进行优化,分析了产物的物相结构和微观形貌. 结果表明,在Na2CO3浓度107 g/L、反应温度43℃及Fe(II)浓度0.26 mol/L的条件下,所得氧化铁红产品纯度可达96.09%,纯度及其它指标均满足GB/T1863-2008中A级氧化铁红要求. 铁红中间产物为针状a-FeOOH和g-FeOOH,煅烧后针状消失,得到结晶较好的a-Fe2O3.
关键词: 煤矸石, 氧化铁红, 响应曲面设计
CLC Number:
TQ32318
GAO Ming CHEN Shun SUN Ying-juan CHENG Gen-yin. Flame Retardancy and Smoke Suppression of Modified Kaolin to Unsaturated Polyester Resin[J]. Chin. J. Process Eng., 2017, 17(2): 345-350.
高明 陈顺 孙英娟 程根银. 改性高岭土对不饱和聚酯树脂的阻燃抑烟性能[J]. 过程工程学报, 2017, 17(2): 345-350.
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