龙游黄铁矿灵山东部锌硫矿石选矿研究

提出抑制锌硫首先脱除石墨，铜铅混选及分离，锌硫化先浮选方案，获得了铅、锌、硫三种精矿产品，选矿指标较为理想。合理的利用了井下酸性水，降低了选矿成本和对环境的污染。     

充填浮选柱捕集区气含率的试验研究

通过冷模试验方法考察了充填浮选柱捕集区的气含率，经试验数据回归分析，气含率εｇ＝０．０９６Ｊｇ０．９１（Ｈｃ／Ｄ）－０．１８。并结合漂移通量的理论，确定充填浮选柱的捕集区为近似均匀鼓泡流。     

复合捕收剂协同作用机理研究

采用苯乙烯膦酸与脂肪醇组成的复合捕收剂浮选金红石矿取得了较好效果，通过改进的Ｈａｌｌｉｍｏｎｄ管浮选试验、吸附量测定试验、捕收剂溶液表面张力和金红石表面接触角的测量以及Ｘ射线光电子能谱测试（ＸＰＳ），详细研究了复合捕收剂的协同作用机理。试验结果表明：苯乙烯膦酸在金红石表面发生了化学吸附，脂肪醇与苯乙烯膦酸相互联结，其疏水基指向水相，从而增强了金红石表面的疏水性，提高浮选结果。     

Effect of particle size on the surface oxidation and flotation behavior of galena particles in lime system

ABSTRACT

In this research, the effect of particle size on the surface oxidation and flotation behavior of galena in the lime system was studied. Coarse (?0.074 + 0.038 mm), intermediate (?0.038 + 0.025 mm) and fine (?0.025 mm) galena particles were used in the experiment. The dissolution tests, flotation tests, and sorption tests were accomplished. Through further analysis by XPS, the effect of particle size and lime was observed. The decrease of mineral particle sizes increased the adsorption ratio of collector and the dissolution of galena, while the hydrophilic product OH^?/Ca(OH)⁺ produced by dissolution occupied the dominant position, which led to the minerals hydrophilic.     

局部颜色特征与工艺参数融合的铜浮选入矿类型识别

针对铜浮选过程中矿源变化频繁而造成的浮选工况难以识别、生产过程不稳定等问题,在分析铜浮选流程特点的基础上,提出了一种局部颜色特征与关键工艺参数融合的铜浮选入矿类型识别方法.首先采用多元图像处理方法提取泡沫图像局部颜色特征,然后采用混合滤波、时间配准算法将其与关键工艺参数进行数据融合,最后用融合后的混合特征进行模糊聚类,得到隶属度矩阵和聚类中心.工业数据仿真结果验证了本文所提方法的有效性.     

昆阳磷矿低品位沉积型磷块岩选矿工艺的研究

本文介绍了用反浮选和双反浮选方法从贫矿和低品位矿选出合格的磷精矿的实验结果。本实验的P_2O_5回收率为78％～84％,P_2O_5％由17.35％～20.5％提高到29.6％～30.5％,符合湿法磷酸工业要求。     

稠油污水的有机组成及可生化性研究

采用物化-厌氧-好氧法处理稠油污水,对物化生化处理各阶段出水的有机组分进行定性分析,并对稠油污水的可生化性进行了进一步研究。研究结果表明:不同处理工序出水的有机成分差异较大,经过气浮、厌氧处理后,稠油污水可生化性逐步提高,有利后续好氧生物处理。     

Assessment of Bitumen Re c overy from the Athabasca Oil Sands Using a Laboratory Denver Flotation Cell

A methodology was developed in this study to evaluate the effect of operating parameters on the processability of oil sands using small‐scale laboratory experimental devices. By subtracting bitumen recovered to the froth by entrainment with water, the concept of “true flotation recovery” is proposed to describe bitumen recovery resulting from bitumenbubble attachment. The experimental results indicated that “true flotation recovery” is a more sensitive and meaningful marker than overall bitumen recovery to evaluate the processability of oil sands using small‐scale laboratory test units.     

含油废水处理技术的研究进展

根据油类物质在水中的存在形式及特征,介绍了含油废水的各种处理方法,如气浮、絮凝、吸附等,同时指出各种方法的优势和存在的问题,并介绍了最新的发展状况,提出对含油废水处理的一些建议和展望.     

Hydrogen and Oxygen Bubble Attachment to a Bitumen Drop

Air bubble – bitumen attachment is a critical step in the flotation of bitumen from mined oil sand. In this study, single bubble – bitumen drop attachment was observed directly using a novel experimental technique. Induction time is determined and used as an indication of bubble‐bitumen attachment potency for both hydrogen and oxygen bubbles. The attachment tests were conducted in deaerated municipal water (City of Edmonton tap water) at temperatures ranging from 22–50°C. Induction times measured for hydrogen bubble attachment were shorter than those for oxygen bubbles. Coalescence tests were also conducted in the absence of bitumen, and showed that hydrogen bubbles coalesced more rapidly than oxygen bubbles in both deaerated municipal water and clear (solids‐free) process water.