technical_center_booklet
- 1. Umwelt- und Ingenieurtechnik GmbH Dresden Zum Windkanal 21, 01109 Dresden, Germany PO Box 80 01 40, 01101 Dresden, Germany Tel.: +49 (0) 351 88646-00 Fax: +49 (0) 351 8865774 E-mail: info@uit-gmbh.de Internet: www.uit-gmbh.de Mineral Resources Technical Center for Hydrometallurgy and NORM Separation VERSION DATE – 01/09/15 Our Services Hydrometallurgical Process Development Geological and mineralogical sample characterization Ore grade determination and distribution Minerals processing tests and engineering Chemical engineering Advanced computer simulations to optimize leaching kinetics (3D reactive transport model for percolate/saturated conditions by in-house software KiLea and TRN) Optimization of recovery grades Testing and development of hydrometallurgical processes within integrated flow sheets according to your requirements Analysis and separation of NORM, as well as integration of NORM removal within the flow sheet Integral solutions by considering the whole process chain from ore sampling, processing, disposal and final remediation of the mine site by simulating and engineering the entire process from mining to a marketable metal concentrate Testing and evaluation of the most efficient and economic extraction method (tank/heap/in-situ leaching) for a specific ore body under the local conditions (geomorphology, infrastructure, climate, legal issues, etc.) Technical changes in the sense of technical improvements are reserved.
- 2. Percolate column leach test facility Ideal leaching kinetics We know that reliable and convincing test results are very important to our clients and therefore we are providing all services from onsite visits, sampling to optimized leaching kinetics and a wholly integrated hydrometallurgical process. In combination with our professional environmental monitoring staff, we offer plausible and smart-technology solutions, from holistic conceptual design to cost-saving implementation. In cooperation with our local agents we can also provide a full EPCM solution and offer the required services for a smooth operation in the long run. Contact us, we will listen to your needs and work out a solution to fit your technical requirements, your budget and your timeline. www.uit-gmbh.de Processing of Technology Metals Specialized in-house flow sheet for the processing of minerals containing technology metals associated with NORM (Naturally Occurring Radioactive Material). Tank/Heap/In-situ Leaching Studies Industrial (hydro)-metallurgical processing options are investigated at lab-scale and are simulated by chemical processing models for up-scaling. Tank, heap and in-situ leaching is tested by batch experiments (beaker, bottle-roll, autoclave) and column leach test facilities (percolate/saturated). Reproducible sample preparation is ensured by crushing, grinding, sieving, homogenization and mechanical beneficiation (gravimetric, magnetic) with most modern lab instruments in order to facilitate a reliable sample analysis. The geochemistry is determined by XRF (most elements) and a basic ore characterization is realized by ore microscopy of polished sections or grain samples. If necessary, additional analyses such as ICP-MS/AES, SEM or MLA are carried out by our affiliate laboratories. Generally, the facilities of the technical center provide contamination-free and reliable sample preparation optimized and certified for NORM samples. Comminution and Analytics Comminution Physical beneficiation (anaerobic – N 2 ) Leaching Chemical processing (separation/refining) - Stone saw, crusher - Ball mill - Screens - Auxiliaries - Batch - Column Leach Facilities - IX, IEX, (SX), (RIP) - Precipitation - Crystallization - Separators, filters etc. In-house analytics External labs (chemical/ mineralogical) Supplementary if required: - Lab facilities within Spezialtechnik group - Local affiliated labs of universities and research institutions - XRF - Titration - -spectro- scopy Lab equipment Measuring tools - Basic (e.g. glove boxes, test cabinets, extraction hoods) - Furnace (max. 3 000 °C) - Scales - Basic chemical parameters DISPOSAL - - dose rate monitor - Contamination monitor (/ß) - Ore analyzer (-spectroscopy) Radiation/ Radionuclide Monitors MINERALSAMPLES Radioactive waste handling Non- radioactive waste handling Marketable metal Jaw crusher Zeiss ore microscope Microscope image of uranium ore Sample powderSieve (4 mm – 25 µm)Ball mill Niton FXL analyzer Batch leach tests are performed in dependence on physical (temperature, pressure) and chemical parameters (pH, ORP, EC, specific ion concentrations). The bottle-roll facility simulates ambient conditions and the autoclave works up to 250°C and 20 MPa. The column leach test facility (saturated flow) is designed according to international standards, operating a 3-channel system either in horizontal or vertical flow. Operational parameters in accordance to realistic ISL wellfield conditions (aquifer temperature, pore volume exchange rate) monitored by real-time data logging/control. Anaerobic column preparation (N2) 3-channel high-precision peristaltic feed pump 3-channel temperature control 3 parallel columns (horizontal or vertical) In-line measurement of pH, ORP, EC, (I), p Injection leachant reservoirs Leachate collectors for sampling Percolate column leach tests are performed under ambient physical conditions in order to simulate heap leaching. Performance depends on chemical parameters, unsaturated flow conditions and additional parameters (e.g. particle size distribution, homogeneity, porosity). Test results enable up-scaling of an ideal reactive transport model to real-world scenarios. IX resin test Bottle-roll facility Autoclave Radiometer