Technology Transfer Network
University of Huelva posted this:Procedure for obtaining a renewable resource of metals from acid minewater, and the respective systemsIs known in the state of the art the recovery of metals from the acid aqueous solution that contain them, generally by liquid-liquid extractions. For metals recovery at industrial scale is necessary that these metals can be recovered simultaneously by means of a single extraction step. There are several extraction reagent for this purpose, all these reagent are very expensive and the industrial process for the metal recovery (particularly for rare earth and yttrium) are very complex and finally expensive. The present procedure allows to recovery selectively metals (particularly rare earths and yttrium) by the neutralization of acid mine waters. The objective is to revalue the metal content dissolved in this waters.
Research & Technology Organization
UNIVERSIDAD DE ALICANTE posted this:Laboratory device to measure gas diffusion coefficients at real conditions.The Applied Petrology Group of the University of Alicante has developed an automatic device and a method to determine gas diffusion coefficients of single gases from a gas mixture under atmospheric conditions. The device works in a wide range of relative humidity and temperature and can be employed to test any permeable or porous material. The procedure allows to calculate the gas diffusion coefficients for samples with different size and nature (soils, rocks, concretes, synthetic materials, etc.). It is a non-destructive test that can be used to calculate the gas diffusion coefficients of more than one gas at the same time. It is looking for companies that are interested in this technology for its commercial exploitation.
Universidad de Cádiz posted this:An improved fast and high throughput method for the sequential measurement of nitrate and nitrite in water samplesWe have developed an improved fast and sequential protocol that permits the determination of low concentrations of nitrite and nitrate in aquatic samples using small volumes. It is ideal to analyse large sets of samples with different characteristics, since it is enough a small amount of water the volume and cost of reagents and consumables are reduced.
UATEC - Unidade de Transferência de Tecnologia posted this:Tungsten carbide based composite material, the appropriate method of production and applicationThe preferential production method of the composite material involves the sputtering for the modification of the particle surface by coating them with a nanocrystalline layer of iron-rich metallic binder with variable thickness. The rest of the processing follows the traditional powder metallurgy routes with pressing and sintering in a vacuum furnace. After processing, the composite contains tungsten carbide phase, eta-phase and iron rich binder.