BIOPROCESSING OF NATURAL PHOSPHATE ORE WITH STAPHYLOCOCCUS AUREUS BACTERIA

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-01-01 DOI:10.17794/rgn.2022.5.5

S. S. Abdallah, K. Selim, M. A. Hassan, Atef El-amir, M. Farghaly, Samah M. Elsayed

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引用次数: 1

Abstract

Phosphate ores are in high demand around the world because they are the primary raw materials used in the manufacturing of phosphatic fertilizers and other chemicals. Since the grade of the ore is gradually declining, it is becoming economically viable to mine and beneficiate numerous lower-grade deposits, and a significant number of precious minerals are discarded due to the inadequacy of new technological advances. Thus, biological processes are becoming more appealing in mineral processing due to their lower operating costs and potential applications to beneficiate low-grade complex ores through the interaction of bacteria and mineral surfaces, resulting in surface modification and mineral separation via bio-flotation. Staphylococcus aureus was supplied by the mineral bioprocessing lab, CMRDI. Bacterial adhesion measurements revealed a higher affinity for apatite than quartz. A binary mixture containing 12.5% P2O5 and 42.5% SiO2 yielded a concentrate containing 20.15% P2O5 and 33.5% SiO2. Using the bio-flotation process with Staphylococcus aureus and the optimal conditions on natural phosphate ore, a concentrate with 30.25% P2O5 was obtained from a feed containing 21.89% P2O5.

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利用金黄色葡萄球菌对天然磷矿进行生物处理

磷矿在世界范围内需求量很大，因为它们是制造磷肥和其他化学品的主要原料。由于矿石的品位逐渐下降，开采和选矿许多低品位矿床在经济上是可行的，而且由于新技术进步不足，大量珍贵矿物被丢弃。因此，生物工艺在矿物加工中变得越来越有吸引力，因为它们具有较低的操作成本和潜在的应用，通过细菌和矿物表面的相互作用来选矿低品位的复杂矿石，从而通过生物浮选进行表面改性和矿物分离。金黄色葡萄球菌由CMRDI矿物生物处理实验室提供。细菌黏附测量结果显示其对磷灰石的亲和力高于石英。采用含12.5% P2O5和42.5% SiO2的二元混合物，可获得含20.15% P2O5和33.5% SiO2的精矿。采用金黄色葡萄球菌生物浮选工艺和天然磷矿的最佳浮选条件，以含P2O5 21.89%的饲料为原料，获得了含P2O5 30.25%的精矿。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.