生物冶金技术在R公司应用的可行性研究

发布时间：2018-07-13 07:45

【摘要】：近年来,随着人民对黄金需求量的日益增长,黄金工业迅速发展,我国易处理的金矿资源日益减少,难选冶金矿资源的利用越来越受到关注。外加上人们对环境保护忧患意识的逐渐增强,尾矿污染问题愈发受到大家的重视,所以研究、开发含砷、硫难以处理金矿的环保选冶新工艺是当务之急,而生物氧化提金技术出现正好解决了这个问题。生物氧化提金具有金回收率高,工艺操作简单,不污染环境等优点,此方法已成为国内外开发难处理低品位金矿石的主要方法。我国自2000年开始投入使用生物氧化提金技术并迅速发展,目前这门高新技术已经进入了工程化应用的快速发展时期。但与此同时,很多中小型黄金生产企业在选择是否使用生物氧化提金技术时,遇到了许多实际应用上的问题,使其处于两难的境地。本文以黄金的供需关系为引导,阐述了中国高品位黄金资源的紧缺和对难处理、低品位金矿资源利用的迫切性。采用理论和案例结合的研究方法对黄金生产企业使用生物氧化提金技术的原因、应用现状和前景进行了分析研究。首先,本文通过国内外文献资料的对生物冶金这门技术的有了一个较为清楚的说明,继而讲述国内外生物冶金技术在各种难选冶矿石资源上应用实践的成功,见证了生物冶金技术在难选冶矿石资源利用上的重大贡献。然后根据生物冶金技术国内外研究现状和发展趋势的分析,充分说明该技术在未来的发展是具有相当大潜力的。同时,点明生物冶金技术在中国黄金生产企业应用和发展的必要性和重要性。最后,讲述该技术在我国工业生产应用和推广上所遇到的难题,经过分析提出相应的解决办法。总结出黄金生产企业想要在国内继续寻求发展必须改变以往传统的生产方式,采用新的工艺。在R公司这个案例部分,首先运用比较分析法,对焙烧氧化、加压氧化、生物氧化这三种方式在处理难选冶金矿资源时的优缺点进行归纳总结,得出生物氧化提金技术的优势以及对其公司应用的可适用性。然后以R公司在进行生物氧化提金项目时所遇到的实际问题进行分析,提出在政策、气候及选择、安全和环保上相应的对策和措施。最后,根据此项目带来的经济和社会效应充说明了其可行性和示范性,肯定了生物冶金技术在黄金生产企业应用发展的广阔前期。为其他正陷入难选冶金矿资源利用问题的企业提供了一定可借鉴的参考意义和实践经验。
[Abstract]:In recent years, with the increasing demand for gold by the people, the gold industry is developing rapidly, and the easily treated gold resources in China are decreasing day by day, and the utilization of refractory gold resources has been paid more and more attention. In addition, with the increasing awareness of environmental protection concerns among people, the problem of tailings pollution has attracted more and more attention. Therefore, it is imperative to study and develop new technologies for environmental separation and smelting of gold deposits that are difficult to deal with arsenic and sulfur. And biological oxidation gold extraction technology appears to solve this problem. Biological oxidation extraction of gold has the advantages of high gold recovery, simple operation and no pollution to the environment. This method has become the main method for the development of low-grade gold ores at home and abroad. Since 2000, biological oxidation gold extraction technology has been used in China and developed rapidly. At present, this new technology has entered the period of rapid development of engineering application. But at the same time, many small and medium-sized gold production enterprises choose whether to use biological oxidation gold extraction technology, encountered a lot of practical problems, making them in a dilemma. Guided by the relationship between supply and demand of gold, this paper expounds the shortage of high-grade gold resources in China and the urgency of utilization of refractory and low-grade gold resources. In this paper, the reasons, application status and prospect of biological oxidation technology for gold extraction in gold production enterprises are analyzed by means of theory and case study. First of all, through the domestic and foreign literature data, this paper has a relatively clear explanation of the biological metallurgy technology, and then describes the successful application of the biological metallurgy technology in various refractory ore resources at home and abroad. It has witnessed the great contribution of biological metallurgy technology in the utilization of refractory ore resources. Then, according to the analysis of the present situation and development trend of biological metallurgical technology at home and abroad, it fully shows that this technology has great potential in the future development. At the same time, it points out the necessity and importance of the application and development of bio-metallurgical technology in gold production enterprises in China. Finally, the problems encountered in the application and popularization of the technology in China's industrial production are described, and the corresponding solutions are put forward. It is concluded that gold production enterprises must change their traditional production methods and adopt new techniques to continue their development in China. In the case of R Company, the advantages and disadvantages of roasting oxidation, pressurized oxidation and biological oxidation in the treatment of refractory gold ore resources are summarized by comparative analysis. The advantages of biological oxidation technology for gold extraction and its applicability to the company are obtained. Then, based on the analysis of the practical problems encountered by R Company in the process of biological oxidation gold extraction project, the corresponding countermeasures and measures in policy, climate and selection, safety and environmental protection are put forward. Finally, according to the economic and social effects brought by this project, the feasibility and demonstration of this project are illustrated, and the broad Prophase of the application of bio-metallurgical technology in gold production enterprises is confirmed. It provides some reference and practical experience for other enterprises which are caught in the problem of utilization of gold ore resources.
【学位授予单位】：西南财经大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：F426.1;F273.1

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