黄药在硫化矿浮选过程中分布的影响因素研究
|
摘要
对五种不同的黄药在硫化矿浮选过程中分布的影响因素进行了分析研究。以硫含量差别较大的两种铁矿石为试样,研究了不同种类黄药在矿石浮选过程中,充气、搅拌、黄药浓度及种类对其分布的影响。结果表明,黄药在矿石表面的分布率随充气时间和搅拌时间的延长而升高;在充气和不充气条件下,黄药与矿石作用后,其在矿石表面的分布率最高可达95%以上,最低为20.2%,在仅搅拌条件下,含硫低和高的矿石表面的黄药分布率最高分别为49.85%和69.76%;黄药的碳链长度越长,其吸附在矿石表面的比例越高,直链结构的黄药比支链结构的黄药更易吸附在矿石表面上;黄药的浓度越高,其吸附在矿石表面的比例越高。该研究可以给黄药废水的降解及其去除提供理论基础。
The factors affecting the distribution of five kinds of xanthate in the flotation process of sulfide ore were analyzed.Using two kinds of iron ore with different sulfur content as samples,the effects of aeration,stirring,xanthate concentration and species on the distribution of different kinds of xanthate in the ore flotation process were studied.The results show that the distribution rate of xanthate on the surface of ore increases with the aeration time and stirring time.Under aerated or non-aerated conditions,after the action of xanthate and ore,the distribution rate of xanthate on the surface of ore is up to 95% or at least20.2%.Under the condition of only stirring,the distribution rate of xanthate on the surface of ore with low and high sulfur content is 49.85% and 69.76% respectively.The longer the carbon chain length of xanthate,the higher the proportion of its adsorption on the ore surface,the linear structure of xanthate is more easily adsorbed on the surface of ore than the branched xanthate.The higher the concentration of xanthate,the higher the proportion of its adsorbed on the surface of ore.This study can provide a theoretical basis for the degradation and removal of xanthate-contained wastewater.
The factors affecting the distribution of five kinds of xanthate in the flotation process of sulfide ore were analyzed.Using two kinds of iron ore with different sulfur content as samples,the effects of aeration,stirring,xanthate concentration and species on the distribution of different kinds of xanthate in the ore flotation process were studied.The results show that the distribution rate of xanthate on the surface of ore increases with the aeration time and stirring time.Under aerated or non-aerated conditions,after the action of xanthate and ore,the distribution rate of xanthate on the surface of ore is up to 95% or at least20.2%.Under the condition of only stirring,the distribution rate of xanthate on the surface of ore with low and high sulfur content is 49.85% and 69.76% respectively.The longer the carbon chain length of xanthate,the higher the proportion of its adsorption on the ore surface,the linear structure of xanthate is more easily adsorbed on the surface of ore than the branched xanthate.The higher the concentration of xanthate,the higher the proportion of its adsorbed on the surface of ore.This study can provide a theoretical basis for the degradation and removal of xanthate-contained wastewater.
引文
[1]PEARSE M J.An overview of the use of chemical reagents in mineral processing[J].Minerals Engineering,2005,18(2):139-149.
[2]袁珊珊.混凝沉淀法处理多金属矿选矿废水研究[D].长沙:中南大学,2013.
[3]李洪帅,刘殿文,宋凯伟,等.选矿废水对浮选的影响[J].矿冶,2012,21(2):94-96.
[4]王淀佐,薛玉兰,潘焕基,等.浮选药剂分布平衡流程图的研究与应用(1)---水口山选矿厂浮选捕收剂平衡测试与药剂制度评价[J].有色金属,1995(4):32-37.
[5]薛玉兰,余雪花,潘焕基,等.黄药在矿浆中的赋存状态和测试方法研究[J].中南矿冶学院学报,1994(5):586-591.
[6]李文艳,罗延谷.紫外分光光度法测定废水中的乙基黄原酸钾[J].光谱实验室,2011,28(4):1812-1815.
[7]贺心然,曹雷,展卫红,等.紫外分光光度法测定水中丁基黄原酸[J].环境污染与防治,2007(7):552-554.
[8]HAO F,DAVEY K J,BRUCKARD W J,et al.Online analysis for xanthate in laboratory flotation pulps with a UV monitor[J].International Journal of Mineral Processing,2008,89(1):71-75.
[9]CORDEIRO T G,HIDALGO P,GUTZ I G R,et al.Flow injection analysis of ethyl xanthate by gas diffusion and UV detection as CS2for process monitoring of sulfide ore flotation[J].Talanta,2010,82(2):790-795.
[10]徐承焱,孙体昌,邹安华,等.乙黄药自然降解的影响试验[J].现代矿业,2016,32(2):44-49.
[11]鄢功军,徐承焱,孙体昌,等.黄药与硫化矿作用对其降解规律的影响研究[J].有色金属(选矿部分),2017(2):86-90.
[2]袁珊珊.混凝沉淀法处理多金属矿选矿废水研究[D].长沙:中南大学,2013.
[3]李洪帅,刘殿文,宋凯伟,等.选矿废水对浮选的影响[J].矿冶,2012,21(2):94-96.
[4]王淀佐,薛玉兰,潘焕基,等.浮选药剂分布平衡流程图的研究与应用(1)---水口山选矿厂浮选捕收剂平衡测试与药剂制度评价[J].有色金属,1995(4):32-37.
[5]薛玉兰,余雪花,潘焕基,等.黄药在矿浆中的赋存状态和测试方法研究[J].中南矿冶学院学报,1994(5):586-591.
[6]李文艳,罗延谷.紫外分光光度法测定废水中的乙基黄原酸钾[J].光谱实验室,2011,28(4):1812-1815.
[7]贺心然,曹雷,展卫红,等.紫外分光光度法测定水中丁基黄原酸[J].环境污染与防治,2007(7):552-554.
[8]HAO F,DAVEY K J,BRUCKARD W J,et al.Online analysis for xanthate in laboratory flotation pulps with a UV monitor[J].International Journal of Mineral Processing,2008,89(1):71-75.
[9]CORDEIRO T G,HIDALGO P,GUTZ I G R,et al.Flow injection analysis of ethyl xanthate by gas diffusion and UV detection as CS2for process monitoring of sulfide ore flotation[J].Talanta,2010,82(2):790-795.
[10]徐承焱,孙体昌,邹安华,等.乙黄药自然降解的影响试验[J].现代矿业,2016,32(2):44-49.
[11]鄢功军,徐承焱,孙体昌,等.黄药与硫化矿作用对其降解规律的影响研究[J].有色金属(选矿部分),2017(2):86-90.