Investigation of the Depressing Effect of PO43- on Quartz in Oleylamine Flotation System
-
摘要:
为了更加深入地认识胶磷矿胺类捕收剂反浮选脱硅过程中难免离子PO43-的影响,考查了PO43-存在条件下石英纯矿物浮选行为,并结合Zeta电位分析及PO43-的Φ-pH图,分析了PO43-的抑制作用机理。研究结果表明,PO43-对油胺浮选石英具有明显的抑制作用,并且pH为4~5时的抑制作用明显大于pH为8~10;PO43-在pH=4~5时以H2PO4-为主,pH=8~10时以HPO42-为主,抑制作用是由于PO43-在溶液中水解生成的H2PO4-及HPO42-吸附于石英表面荷正电区域,使石英表面亲水。
Abstract:In order to further understand the influence of PO43- ions on the removal of silicon from collophane by reverse flotation of amine collectors, the flotation behavior of pure quartz in the presence of PO43- is examined. Combined with zeta potential analysis and Φ-pH diagram of PO43- ions, the inhibition mechanism of PO43- is analyzed. The results show that PO43- ions have a significant inhibitory effect on the flotation of quartz by oleamine, and the inhibitory effect at pH=4~5 is significantly greater than that at pH=8~10; H2PO4- ions are the primary species at pH=4~5 and HPO42- at pH=8~10. The inhibition effect could be attributed to the adsorption of H2PO4- and HPO42- ions hydrolyzed from PO43- ions on the positive region of the quartz surface, which makes the quartz surface hydrophilic.
-
Key words:
- oleylamine /
- reverse flotation /
- quartz /
- inhibition
-
-
[1] 刘长淼, 卫敏, 吴东印, 等.青海低品位磷灰石型磷矿浮选试验研究[J].矿冶工程, 2014, 34(3):29-32. http://cpfd.cnki.com.cn/Article/CPFDTOTAL-XDKY201407001055.htm
[2] 尧章伟, 方建军, 张琳, 等.我国胶磷矿浮选工艺及药剂研究进展[J].矿产保护与利用, 2017(4):107-112. http://kcbh.cbpt.cnki.net/WKD/WebPublication/paperDigest.aspx?paperID=671d4082-39d2-4c97-931b-015801582560
[3] 中国化学矿业协会.我国磷矿供需形势分析及对策建议[J].化工矿物与加工, 2004, 33(5):1-2. http://www.cqvip.com/QK/92932A/200405/9668420.html
[4] 何东升, 刘星, 彭灿, 等.湖北某胶磷矿双反浮选试验研究[J].化工矿物与加工, 2017, 46(1):1-3. http://www.cnki.com.cn/Article/CJFDTOTAL-HGKJ200802003.htm
[5] 张泽强, 张翼, 李冬莲.胶磷矿浮选技术的改进[J].武汉工程大学学报, 2016, 38(2):168-172. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=whhgxyxb201602012
[6] 葛英勇, 季荣, 袁武谱.远安低品位胶磷矿双反浮选试验研究[J].矿产综合利用, 2008(6):7-10. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=kczhly200806002
[7] 彭兰, 曹学锋, 杜平.胺类捕收剂对铝硅矿物的浮选性能研究[J].广西民族大学学报(自然科学版), 2006, 12(1):68-74. http://www.cqvip.com/QK/91261A/200601/21605046.html
[8] 周波, 徐伟, 陈跃, 等.阳离子捕收剂在磷矿反浮选脱硅中的研究进展[J].矿产保护与利用, 2016(3):62-65. http://kcbh.cbpt.cnki.net/WKD/WebPublication/paperDigest.aspx?paperID=bee0f1a1-5ddf-4178-b9fb-6874dbc15b54
[9] 何东升, 刘星, 代江, 等.两性捕收剂LDS浮选石英及其作用机理[J].矿产保护与利用, 2017(2):47-50. http://kcbh.cbpt.cnki.net/WKD/WebPublication/paperDigest.aspx?paperID=f793e47d-e582-4420-94ab-130bd0065408
[10] 李亮, 陈慧, 李成秀, 等.几种阳离子捕收剂浮选胶磷矿性能比较[J].武汉工程大学学报, 2014, 36(1):42-46. http://www.cqvip.com/QK/90879A/201401/48814380.html
[11] 周坤, 崔伟勇, 唐云, 等. 无机阴离子对石英浮选的影响研究[C]//第七届全国选矿专业学术年会论文集. 银川: 中国金属学会, 2014.
[12] 李显波. 选矿回水中复杂离子对磷矿浮选的影响研究[D]. 贵阳: 贵州大学, 2015.
[13] 罗惠华, 李成秀, 陈慧, 等.胶磷矿反浮选抑制剂PT-4与磷酸抑制性能对比研究[J].化工矿物与加工, 2013, 42(3):1-3. http://cpfd.cnki.com.cn/Article/CPFDTOTAL-HBKJ200708003017.htm
[14] 杨峻杰, 庹必阳, 韩朗, 等.低品位磷矿浮选试验研究[J].矿冶工程, 2016, 36(5):49-52. http://cpfd.cnki.com.cn/Article/CPFDTOTAL-XDKY201407001055.htm
[15] 谢广元.选矿学[M].徐州:中国矿业大学出版社, 2016.
[16] 曼塞.硅酸盐浮选手册[M].北京:中国建筑工业出版社, 1980.
-