Selenium and tellurium concentration by organic materials

有机材料中硒和碲的浓度

• 批准号: NE/L001764/1
• 负责人: John Parnell
• 金额: $ 9.89万
• 依托单位: University of Aberdeen
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2013
• 资助国家: 英国
• 起止时间: 2013 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FL001764%2F1
• 关键词: Selenium; tellurium; concentration; organic; materials

Selenium (Se) and Tellurium (Te) are scarce (semi)metallic elements usually recovered as by-products of the chemical extraction of other metals. The proposal will exploit close relationships between these elements and organic materials to target additional resources, and extract resources in a more sustainable, environmentally sensitive manner.Se/Te are most concentrated in rocks containing organic matter (e.g. coals, carbon-rich shales, sandstones containing oil residues or coaly matter). We also know that microbial (bacterial) activity can concentrate Se/Te. We seek to use that knowledge to predict previously unrecognized concentrations of Se/Te by study of metal sulfide ores which are known to have been formed by microbial sulfate reduction, on the basis that these microbes could have also engendered Se/Te concentration. More significantly, we will try to advance our knowledge of how microbes interact with Se/Te in rocks and soil, to develop a strategy for the microbial concentration of Se/Te on a valuable scale. To achieve this the project combines interdisciplinary expertise on Se/Te from geology, soil science, chemistry and microbiology.The catalyst stage involves data gathering, and pilot sampling from two field sites, one in SW Ireland where some of the most Se-rich soils in the world occur, and in Scotland where a gold mine and its environs have elevated levels of Te, and the Te needs to be exploited to ensure financial viability. We have the support of Scotgold Resources, who own the gold mine, and Stantec, an international company whose portfolio includes management of metal resources.

硒（Se）和碲（Te）是稀有（半）金属元素，通常作为其他金属化学提取的副产品回收。该提案将利用这些元素与有机物质之间的密切关系，以寻找更多的资源，并以更可持续、对环境更敏感的方式开采资源。硒/碲主要集中在含有有机物质的岩石中（如煤、富碳页岩、含有石油残留物或含煤物质的砂岩）。我们还知道，微生物（细菌）活动可以富集Se/Te。我们试图利用这些知识来预测以前未被认识到的硒/碲的浓度，通过研究已知已形成的微生物硫酸盐还原的基础上，这些微生物也可能产生硒/碲浓度的金属硫化物矿石。更重要的是，我们将努力推进我们的知识，微生物如何与硒/碲在岩石和土壤中相互作用，制定一个战略，硒/碲的微生物浓度在一个有价值的规模。为了实现这一目标，该项目结合了地质学、土壤学、化学和微生物学领域的硒/碲跨学科专业知识。催化剂阶段包括数据收集，以及从两个现场进行试点采样，一个在世界上硒含量最高的土壤西南爱尔兰，另一个在苏格兰，一个金矿及其周边地区的碲含量较高，需要开采碲以确保经济可行性。我们得到了拥有金矿的Scotgold Resources和Stantec的支持，Stantec是一家国际公司，其投资组合包括金属资源管理。

项目成果

Selenium and tellurium enrichment in palaeo-oil reservoirs

古油藏中硒和碲的富集

• DOI: 10.1016/j.gexplo.2014.09.006
• 发表时间: 2015
• 期刊: Journal of Geochemical Exploration
• 影响因子: 3.9
• 作者: Parnell J

Selenium and tellurium concentrations of Carboniferous British coals

• DOI: 10.1002/gj.3238
• 发表时间: 2019-05-01
• 期刊: GEOLOGICAL JOURNAL
• 影响因子: 1.8
• 作者: Bullock, Liam A.;Parnell, John;Flores, Erico M. M.
• 通讯作者: Flores, Erico M. M.

Reduction spheroids preserve a uranium isotope record of the ancient deep continental biosphere.

• DOI: 10.1038/s41467-018-06974-9
• 发表时间: 2018-10-29
• 期刊: Nature communications
• 影响因子: 16.6
• 作者: McMahon S;Hood AVS;Parnell J;Bowden S
• 通讯作者: Bowden S

Metalliferous Biosignatures for Deep Subsurface Microbial Activity.

• DOI: 10.1007/s11084-015-9466-x
• 发表时间: 2016-03
• 期刊: Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life
• 作者: Parnell J;Brolly C;Spinks S;Bowden S
• 通讯作者: Bowden S

Tellurium and selenium in Mesoproterozoic red beds

• DOI: 10.1016/j.precamres.2017.12.022
• 发表时间: 2018-02
• 期刊: Precambrian Research
• 影响因子: 3.8
• 作者: J. Parnell;S. Spinks;C. Brolly