SBIR Phase I: Gallium and Germanium Recovery from Acidic and Alkaline Ore Leaches with Selective Silica-Polyamine Composites

该小型企业创新研究第一阶段项目将开发用于从酸性和碱性矿石浸出液中分离和浓缩锗和镓的先进材料。该项目的主要目标将是开发将多胺接枝到二氧化硅颗粒上的合成路线，从而产生复合材料，该复合材料为将金属选择性配体固定在基质上提供了一个极好的平台，该基质具有耐酸碱性和耐高温性。这应该允许锗和镓的负载量和可用材料的寿命优于当前技术的上级。 开发更有效的提取这些金属的手段将导致在美国开采锗和镓矿床，由于经济上可行和环境友好的矿石加工方案有限，目前无法开发这些矿床

This Small Business Innovation Research Phase I project will develop advanced materials for the separation and concentration of germanium and gallium from both acidic and basic ore leaches. The primary objective of the project will be to develop synthetic routes for grafting polyamines to silica particles resulting in composite material that provide an excellent platform for immobilizing metal selective ligands on a matrix is resistant to acids and bases and elevated temperatures. This should permit germanium and gallium loadings and usable materials lifetimes that are superior to current technologies. The development of more efficient means of extracting these metals will result in the exploitation of germanium and gallium deposits in the United States that cannot be currently developed due to the limited availability of economically viable and environmentally benign ore processing protocols