大冶诺兰达炉渣选矿的研究与实践

对影响炉渣选矿指标的主要工艺因素作了较详细的分析。并对炉渣处理的一些工艺措施做了改进，提出了用粗颗粒充气式浅槽浮选和炉渣冷却等工艺。结果表明：铜、铁、金、银得到进一步回收，达到了预期效果。     

GL—2型Φ600mm螺旋选别攀枝花钛铁矿生产实践

攀矿选钛厂设计采用传统的螺旋选矿设备ＦＬＸ一１型φ６００ｍｍ螺旋选矿机和φ１２００ｍｍ螺旋溜槽，从选矿（铁）厂磁选尾矿物料中回收原生粒状钛铁矿积累了多年生产实践经验。而广东有色金属研究院研制的ＧＬ一２型φ６００ｍｍ螺旋选矿机具有处理能力大、分选效率高、选别粒级宽、不需冲洗水及占地面积小等特点，有取代选钛厂目前使用的螺旋选矿设备之趋势。     

关于砂金工艺矿物学研究规范化的建议

本文从样品的采集、加工、制备到砂金性状、矿砂物质组成;从分离、鉴定质量要求到选矿产品考察;从矿砂可洗性、可选性评价到矿砂工艺类型确定等项内容的系统化、标准化,阐述了砂金工艺矿物学的研究规范。     

铜冶炼渣尾矿综合利用现状及研究

铜冶炼炉渣含有大量的有价金属元素,经过选矿工艺处理后,大部分铜被回收,选出的渣精矿返回熔炼炉,渣尾矿外售至水泥厂,尾矿中有价金属仍存在较大利用价值,在现有工艺流程后增加磁选工艺,磁选后的铁精粉用作炼钢配料,尾矿外售。主要介绍了熔炼渣及尾矿成分,现有工艺尾矿处理方式,新工艺的应用及实践。     

Processing of an East Mediterranean phosphate ore sample by an integrated attrition scrubbing/classification scheme (part one)

ABSTRACT

In this study, an Egyptian siliceous/calcareous sedimentary phosphorite was subjected to beneficiation by unsophisticated economic means. The mineralogical and chemical examination showed that the ore sample is a typical example for the East Mediterranean phosphorites with 21.80% P₂O₅, 10.93% acid insoluble and 16.61% loss on ignition. The primary crushed sample was classified into three size fractions without any milling and they were separately subjected to an integrated attrition scrubbing study. Screening and classification on the 2.30 mm and 0.071 mm sieves were sequentially introduced with the attrition process. The effect of solid%, attrition speed and time were studied and optimized for each size fraction. Results showed that three products were produced and could be categorized according to their P₂O₅ content into the coarse tailing (+2.30 mm), the attrition concentrate (?2.30 + 0.071 mm) and the phosphate fines (?0.071 mm). The P₂O₅ contents of these products reached 12.24%, 28.72% and 18.77%, with P₂O₅ distribution reached 6.74%, 51.75% and 41.51%, respectively. A global P₂O₅ of 28.72% was obtained with a recovery of about 52%. A tentative flow-sheet for the whole process was postulated.     

Data-based multiple-model prediction of the production rate for hematite ore beneficiation process

The prediction of the production rate of the hematite ore beneficiation process is important to plant-wide optimization. This paper presents a data-based multi-model approach to predict the production rate with multiple operating modes. The inputs of the predictive model are the performance indices of each unit process, and the output is the global production index (the production rate) of the hematite ore beneficiation process. The multiple models are developed by integrating the fuzzy clustering algorithm and machine learning algorithm. A global model, Takagi–Sugeno–Kang fuzzy model, and multiple neural network model were compared using the data obtained from a practical industrial process, and the effectiveness of the proposed algorithm was proven.     

磷矿选矿含锰废水在造气循环水系统中的应用

针对湖北省黄麦岭磷化工有限责任公司磷矿选矿尾水排放锰含量超标的问题,提出将含锰尾水回用于合成氨造气循环水补水的处理方法.采用含锰尾水代替新鲜水补充至含有硫化物、碳酸根以及氢氧根离子的造气循环水系统中;中和沉淀去除锰离子后大部分废水循环利用,少量强制外排至综合废水处理系统处理后达标排放.工程实际运行结果表明：锰离子在合成氨造气循环水处理系统中大部分得以削减,质量浓度由36～41 mg/L下降至3～6 mg/L;强制外排废水再经过合成氨综合废水处理站处理,质量浓度由3～6 mg/L下降至0.5～1.5 mg/L,总去除率达到95％以上,出水水质能够满足达标排放的要求.该工程应用减少了废水中的重金属排放,并对废水进行了综合利用,达到了节约水资源和保护环境的目的,具有节能减排和可持续发展的重要意义.     

黑色岩系钼镍矿的处理工艺研究概况

近年来随着我国经济的高速发展,出现了矿产资源保有储量短缺的局面。合理开发富含多种有价金属的黑色岩系钼镍矿资源,对我国国民经济与国防的建设有着十分重要的战略意义。结合钼镍矿的矿物组成和特性的分析,介绍了当前钼镍矿的处理工艺研究概况。提出了选冶联合处理钼镍矿的工艺,以及现有工艺中存在的一些问题。同时针对钼镍矿的性质特点,提出了下一步的研究方向。对其他低品位多金属矿的综合利用提供了一定的参考。     

攀枝花红格矿区钒钛磁铁矿选铁试验研究

对攀枝花红格矿区钒钛磁铁矿进行了湿式抛尾和选铁磨选工艺流程的对比试验。结果表明,选取湿式抛尾—阶段磨选—弱磁选的工艺作为该矿石选别流程,最终可获得TFe品位58.41%、含钛9.75%的铁精矿。