磷矿反浮选几种胺离子捕收剂脱硅性能对比

闫雅雯; 罗惠华; 国亚非; 赵泽阳; 张正虎; 张振翼

doi:10.3969/j.issn.1000-6532.2022.06.021

磷矿反浮选几种胺离子捕收剂脱硅性能对比

1.
武汉工程大学兴发矿业工程学院，湖北　武汉　430074

2.
孝感市天翔矿业科技有限公司，湖北　孝感　432818

基金项目: 湖北省技术创新重大项目（编号：2017ACA187，2018ACA153）

详细信息

作者简介: 闫雅雯（1997-），女，硕士研究生，从事磷矿浮选药剂开发

通讯作者: 罗惠华（1968-），男，教授，博士生导师，研究方向为磷矿选矿理论与药剂，矿产资源综合利用

中图分类号: TD985

收稿日期: 2021-08-31

刊出日期: 2022-12-25

Comparison of Desilication Performance of Several Amine Ion Collectors in Reverse Flotation of Phosphate Rock

1.
Xingfa School of Mining Engineering, Wuhan Institute of Technology, Wuhan, Hubei, China

2.
Xiaogan Tianxiang Mining Technology Co., Ltd., Xiaogan, Hubei, China

More Information

Corresponding author: Luo Huihua, luohh68@sina.cn

Received Date: 31 August 2021

Publish Date: 25 December 2022

摘要

摘要:
为了较好地实现磷矿反浮选脱硅，选取适宜的胺类捕收剂及合理的浮选条件是磷矿反浮选脱硅的关键。通过浮选实验，对比研究脂肪胺类、胺醚类、醚胺类和氧化胺共4类不同胺类捕收剂对石英的捕收效果。实验表明，在相同pH值下不同胺类捕收剂对胶磷矿浮选性能不同，在弱碱性介质中，脂肪胺类药剂对SiO₂的捕收能力的基本排序为：椰油二胺浮选捕收硅酸盐矿物性能优于正辛胺、十二胺、椰油胺，异十三胺，但是异十三胺药剂对磷的损失率较低，椰油二胺次之，十二胺、椰油胺和正辛胺对磷的损失较大。胺醚类药剂对SiO₂的捕收能力强弱为：椰油胺聚氧乙烯醚对硅酸盐矿物的捕收能力强于十二胺聚氧乙烯醚，十二胺聚氧乙烯醚浮选尾矿P₂O₅损失率高于椰油胺聚氧乙烯醚；醚胺类药剂对SiO₂的捕收能力强弱为：异十醚胺较C10醚胺对硅酸盐矿物的捕收能力较弱，对异十醚胺浮选尾矿P₂O₅的损失率高于C10醚脂；实验结果说明，相同类型的胺类药剂的浮选性能基本相似，同时存在一些较小差异，碳链组成相同的脂肪二胺对胶磷矿的捕收能力比脂肪一胺强，浮选性能由强到弱基本排序为：二胺>一胺>醚胺>胺醚>氧化胺。
- 胺类捕收剂 /
- 磷矿 /
- 反浮选 /
- 脱硅
Abstract:
In order to realize the desilication of phosphate rock by reverse flotation, the selection of appropriate amine collectors and reasonable flotation conditions are the key to the desilication of phosphate rock by reverse flotation. Through flotation experiments, the collection effects of four different amine collectors, including fatty amines, amine ethers, ether amines and oxidized amines, on quartz were compared. The experiments show that different amine collectors have different flotation properties for collophanite at the same pH value. In weakly alkaline medium, the basic order of the collection capacity of fatty amine reagents for SiO₂ is as follows: the flotation collection performance of coconut diamine for silicate minerals is better than that of n-octylamine, dodecylamine, coconut diamine and isothirteen amine, but the loss rate of phosphorus by isothirteen amine reagent is lower, followed by coconut diamine, dodecylamine, coconut oil amine and n-octylamine had greater loss of phosphorus. The collection capacity of amine ethers for SiO₂ is as follows: the collection capacity of coconut amine polyoxyethylene ether for silicate minerals is stronger than that of dodecylamine polyoxyethylene ether, and the P₂O₅ loss rate of flotation tailings of dodecylamine polyoxyethylene ether is higher than that of coconut amine polyoxyethylene ether; The collection capacity of ether amine reagents for SiO₂ is as follows: the collection capacity of isodecanetramine for silicate minerals is weaker than that of C10 ether amine, and the loss rate of P₂O₅ of isodecanetramine flotation tailings is higher than that of C10 ether grease; The test results show that the flotation performance of the same type of amine reagent is basically similar, and there are some small differences. The collection capacity of fatty diamine with the same carbon chain composition for collophanite is stronger than fatty monoamine. The basic order of flotation performance from strong to weak is diamine > monoamine > ether amine > amine ether > oxide amine.
- Amine ion collectors /
- Phosphate rock /
- Reverse flotation /
- Desilication

HTML全文

图 1 脂肪胺类捕收剂用量对浮选指标的影响

Figure 1.

下载: 全尺寸图片幻灯片

图 2 胺醚类药剂用量对浮选指标的影响

Figure 2.

下载: 全尺寸图片幻灯片

图 3 异十醚胺、C10醚胺捕收剂用量对浮选指标的影响

Figure 3.

下载: 全尺寸图片幻灯片

表 1 十种胺类药剂中各种碳数的胺占有的比例

Table 1. Proportion of amines with various carbon numbers in ten amines

种类	药剂	分子式	结构式	性质
伯胺	十二胺	C₁₂H₂₇N		溶于乙醇、乙醚、苯、氯仿，微溶于水
	正辛胺	C₈H₁₉N		无色液体，有毒，有腐蚀性。
	椰油胺	C₁₆H₃₅N		不溶于水、易溶于酸、无色液体或白色结晶固体
	异十三胺	C₁₃H₂₉N
叔胺	椰油二胺	N-椰油基-1,3-丙撑二胺
胺醚	椰油胺聚氧乙烯醚
胺醚	十二胺聚氧乙烯醚	C₁₆H₃₅NO₂
醚胺	C10醚胺		R-O-CH₂CH₂CH₂NH₂ (R为脂肪烷基）	无色或淡黄色液体，具有弱刺激性氨味，不易溶于水
醚胺	异十醚胺		R-O-CH₂CH₂CH₂NH₂ (R为脂肪烷基）	无色或淡黄色液体，具有弱刺激性氨味，不易溶于水
氧化胺	椰油酰胺丙基氧化胺		RCONH（CH₂）OR=CH-	易溶于水，无色透明液体

下载: 导出CSV

表 2 原矿化学多元素分析/%

Table 2. Chemical multielement analysis of raw ore

MgO	Al₂O₃	P₂O₅	SiO₂	Na₂O	K₂O	CaO	CO₂	TiO₂	F	Cu	MnO₂	Fe₂O₃	SrO
2.24	3.00	21.36	25.26	0.39	1.44	24.05	8.67	0.23	2.16	0.00	0.04	1.84	0.09

下载: 导出CSV

表 3 胺类药剂反浮选试验结果

Table 3. Results of amine reagent reverse flotation test

捕收剂	产率/%	SiO₂含量/%	脱硅率	P₂O₅含量/%	P₂O₅损失率/%	脱硅P₂O₅损失系数
椰油二胺	13.34	43.18	22.80	14.5	8.53	0.37
十二胺	40.05	41.65	66.04	15.38	27.31	0.41
椰油胺	38.73	40.62	62.28	15.14	26.85	0.43
异十醚胺	44.86	40.34	71.64	14.79	34.97	0.49
C10醚胺	38.69	39.22	60.07	14.52	27.83	0.46
正辛胺	30.18	38.44	45.93	14.9	21.4	0.47
异十三胺	21.48	36.66	31.17	15.53	16.37	0.53
椰油胺聚氧乙烯醚	22.38	32.44	28.74	14.19	13.85	0.48
十二胺聚氧乙烯醚	31.26	31.36	38.81	18.23	24.22	0.62
椰油酰胺丙基氧化胺	38.73	30.32	46.49	17.48	31.99	0.69

下载: 导出CSV

参考文献(9)

[1]	王涛, 付磊, 李宁. 某硅钙质胶磷矿正反浮选试验研究[J]. 矿产综合利用, 2020(2):91-95. doi: 10.3969/j.issn.1000-6532.2020.02.016 WANG T, FU L, LI N. Study on direct-reverse flotation of a silica calcinate phosphate ore[J]. Multipurpose Utilization of Mineral Resources, 2020(2):91-95. doi: 10.3969/j.issn.1000-6532.2020.02.016
[2]	阿布拉莫夫 A A. 矿物浮选中阳离子捕收剂作用机理的理论基础和规律性[J]. 国外金属矿选矿, 2007(8):9-13. Abramoff A A. Theoretical basis and regularity of cationic collector in mineral flotation[J]. Metallic Ore Dressing Abroad, 2007(8):9-13.
[3]	朱一民, 杨雪莹, 乘舟越洋, 等. 不同胺类捕收剂泡沫性能及其机理研究[J]. 金属矿山, 2020(7):99-104. doi: 10.19614/j.cnki.jsks.202007015 ZHU Y M, YANG X Y, CHENG Z Y Y, et al. Properties and mechanism research of different amine collector foam[J]. Metal Mine, 2020(7):99-104. doi: 10.19614/j.cnki.jsks.202007015
[4]	余新文, 喻福涛, 杨晓军, 等. 四川某地石英长石矿高效利用选矿试验研究[J]. 矿产综合利用, 2020(5):87-91. doi: 10.3969/j.issn.1000-6532.2020.05.012 YU X W, YU F T, YANG X J, et al. Experimental study on the efficient utilization of quartz-feldspar ore in Sichuan[J]. Multipurpose Utilization of Mineral Resources, 2020(5):87-91. doi: 10.3969/j.issn.1000-6532.2020.05.012
[5]	吴中贤, 姜效军, 陶东平. 新型胶磷矿反浮选脱硅阳离子捕收剂试验研究[J]. 矿产综合利用, 2020(5):115-119. doi: 10.3969/j.issn.1000-6532.2020.05.017 WU Z X, JIANG X J, TAO D P. Experimental study on a novel cationic collector for reverse flotation of collophane for silica removal[J]. Multipurpose Utilization of Mineral Resources, 2020(5):115-119. doi: 10.3969/j.issn.1000-6532.2020.05.017
[6]	刘鸣. 醚多胺磷矿反浮选钾长石的研究[D]. 武汉: 武汉理工大学, 2018. LIU M. Study on reverse flotation of potassium feldspar from ether polyamine phosphate mine[D]. Wuhan: Wuhan University of Technology, 2018.
[7]	刘文刚, 王鑫阳, 刘文宝, 等. 高降解性月桂酰基丙基氧化胺的合成及浮选性能研究[J]. 金属矿山, 2021(2):65-70. doi: 10.19614/j.cnki.jsks.202102010 LIU W G, WANG X Y, LIU W B, et al. Synthesis and flotation performance of highly degradable lauroyl propyl amine oxide[J]. Metal Mine, 2021(2):65-70. doi: 10.19614/j.cnki.jsks.202102010
[8]	李莉, 孙保兴. 氧化胺的性能、应用及其工艺改进[J]. 表面活性剂工业, 1998(3):15-21. LI L, SUN B X. Performance, application and process improvement of amine oxide[J]. Surfactant Industry, 1998(3):15-21.
[9]	葛英勇. 新型捕收剂烷基多胺醚(GE-609)的合成及浮选性能研究[D]. 武汉: 武汉理工大学, 2010. GE Y Y. Synthesis and flotation performance of a new collector, alkyl polyamine ether (GE-609)[D]. Wuhan: Wuhan University of Technology, 2010