酒石酸-十二醇反应产物对棉油脂肪酸皂浮选磷矿性能的影响
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摘要
为了优化棉油脂肪酸皂浮选磷矿的性能,在棉油脂肪酸皂中添加一种合成的表面活性剂,获得一种新型的复配捕收剂,此表面活性剂由酒石酸与正十二醇反应得到。将此复配捕收剂应用于四川清平地区中低品位胶磷矿浮选试验中,研究了酒石酸与正十二醇合成表面活性剂时的合成温度、物料配比、合成时间对合成药剂酯化率和棉油脂肪酸皂的浮选性能的影响,以及捕收剂的浮选性能与酯化率之间的关系。试验结果表明:两者投料配比、合成温度、反应时间对合成药剂酯化率和捕收剂浮选性能有较大影响;确定了正十二醇、酒石酸合成物料质量比为2.5∶1、反应温度160℃、反应时间60min的酯化条件;酒石酸与正十二醇反应的酯化率对捕收剂的浮选性能有一定影响,酯化率在83%～85%时药剂浮选性能较好。正十二醇与酒石酸合成药剂与原料的红外光谱分析证明:正十二醇和酒石酸发生了化学反应,生成了酒石酸十二烷基酯。气相色谱质谱联用仪测试结果显示,正十二醇和酒石酸酯化生成了含量较高的酒石酸与十二醇的酯化产物。
In order to optimize the flotation performance of cotton oleic acid soap,a synthetic surfactant was compounded in cotton oleic acid soap to obtain a new type of composite collector by the reaction of tartaric acid with n-dodecanol.The collector was applied to the flotation test of low grade collophane in Qingping District,Sichuan.Investigation was made into effects of reaction temperature,ratio of synthetic materials,reaction time of todecanol and tartaric acid on the tartaric acid/n-dodecanol esterification rate and the flotation performance of cottonseed fatty acid soap and the relationship between the flotation performance of the collector and the esterification rate.The flotation test results indicated that the ratio of the two materials,the synthesis temperature and the reaction time had a great influence on the flotation performance and the esterification rate.The esterification conditions were determined to be mass ratio of tartaric acid-n-dodecanol 2.5∶1,reaction temperature 160 ℃ and reaction time 60 min.The esterification rate of tartaric acid/n-dodecanol had a certain influence on the flotation performance of the collector,and the flotation performance of the agent was better when the esterification rate was 83% ～85%.Analysis of n-dodecanol and tartaric acid synthetic chemicals and raw materials by infrared spectroscopy showed that dodecanol reacted with tartaric acid to form dodecyl tartrate.The results of gas chromatography mass spectrometry showed that the esterification of n-dodecanol and tartaric acid produced the esterification products with high content of tartaric acid-dodecanol.
In order to optimize the flotation performance of cotton oleic acid soap,a synthetic surfactant was compounded in cotton oleic acid soap to obtain a new type of composite collector by the reaction of tartaric acid with n-dodecanol.The collector was applied to the flotation test of low grade collophane in Qingping District,Sichuan.Investigation was made into effects of reaction temperature,ratio of synthetic materials,reaction time of todecanol and tartaric acid on the tartaric acid/n-dodecanol esterification rate and the flotation performance of cottonseed fatty acid soap and the relationship between the flotation performance of the collector and the esterification rate.The flotation test results indicated that the ratio of the two materials,the synthesis temperature and the reaction time had a great influence on the flotation performance and the esterification rate.The esterification conditions were determined to be mass ratio of tartaric acid-n-dodecanol 2.5∶1,reaction temperature 160 ℃ and reaction time 60 min.The esterification rate of tartaric acid/n-dodecanol had a certain influence on the flotation performance of the collector,and the flotation performance of the agent was better when the esterification rate was 83% ～85%.Analysis of n-dodecanol and tartaric acid synthetic chemicals and raw materials by infrared spectroscopy showed that dodecanol reacted with tartaric acid to form dodecyl tartrate.The results of gas chromatography mass spectrometry showed that the esterification of n-dodecanol and tartaric acid produced the esterification products with high content of tartaric acid-dodecanol.
引文
[1]韦敏,张凌燕,邱杨率,等.我国磷矿资源概况及选矿方法综述[J].选煤技术,2016,(4):88-92.
[2]李成秀,文书明.我国磷矿选矿现状及其进展[J].矿产综合利用,2010,(2):22-25.
[3]史继斌,王明艳,许瑞波.复合增效剂在磷矿浮选中的应用研究[J].化工矿物与加工,2003,32(10):16-17.
[4]Sis H,Chander S.Reagents used in the flotation of phosphate ores:a critical review[J].Minerals Engineering,2003,16(7):577-585.
[5]张央,李冬莲.几种表面活性剂在磷矿低温浮选中的应用[J].化工矿物与加工,2007,(4):8-9.
[6]陈慧,罗惠华.表面活性剂对棉油皂脚浮选性能的影响[J].化工矿物与加工,2008,37(9):1-3.
[7]罗惠华,朱道鹏,汤家焰,等.聚氧乙烯烷基酚醚增效酰胺化改性脂肪酸皂的胶磷矿浮选性能[J].化工矿物与加工,2017,46(1):8-11.
[8]陈慧.复配捕收剂在难选胶磷矿浮选中的性能研究[D].武汉:武汉工程大学,2010.
[9]唐课文,陈国斌,李娟.D-酒石酸正辛酯的合成[J].合成化学,2005,13(1):77-79.
[10]陈国斌,唐课文,陈铁华,等.疏水性L-酒石酸正戊酯的合成[J].精细化工,2004,21(10):12-13.
[11]陈国斌,唐课文,王崇国.D-酒石酸正庚酯的合成[J].合成化学,2006,14(1):82-83.
[12]钟康年,罗惠华,姚杨.捕收剂的亚油酸/油酸比值对磷矿浮选的影响[J].化工矿物与加工,2003,(11):1-3.
[2]李成秀,文书明.我国磷矿选矿现状及其进展[J].矿产综合利用,2010,(2):22-25.
[3]史继斌,王明艳,许瑞波.复合增效剂在磷矿浮选中的应用研究[J].化工矿物与加工,2003,32(10):16-17.
[4]Sis H,Chander S.Reagents used in the flotation of phosphate ores:a critical review[J].Minerals Engineering,2003,16(7):577-585.
[5]张央,李冬莲.几种表面活性剂在磷矿低温浮选中的应用[J].化工矿物与加工,2007,(4):8-9.
[6]陈慧,罗惠华.表面活性剂对棉油皂脚浮选性能的影响[J].化工矿物与加工,2008,37(9):1-3.
[7]罗惠华,朱道鹏,汤家焰,等.聚氧乙烯烷基酚醚增效酰胺化改性脂肪酸皂的胶磷矿浮选性能[J].化工矿物与加工,2017,46(1):8-11.
[8]陈慧.复配捕收剂在难选胶磷矿浮选中的性能研究[D].武汉:武汉工程大学,2010.
[9]唐课文,陈国斌,李娟.D-酒石酸正辛酯的合成[J].合成化学,2005,13(1):77-79.
[10]陈国斌,唐课文,陈铁华,等.疏水性L-酒石酸正戊酯的合成[J].精细化工,2004,21(10):12-13.
[11]陈国斌,唐课文,王崇国.D-酒石酸正庚酯的合成[J].合成化学,2006,14(1):82-83.
[12]钟康年,罗惠华,姚杨.捕收剂的亚油酸/油酸比值对磷矿浮选的影响[J].化工矿物与加工,2003,(11):1-3.