Introduction: Spectral reflectance properties from. 0.45 to 4.3 μm have been investigated for a number of. mineral samples. Eight mineral samples were placed. in one of the environmental simulation chambers in the. University of Winnipeg’s spectroscopy lab [1,2]. The. eight samples and two standards spent 38 days in the. chamber. Of the eight samples (three silicates, two. carbonates and three sulfates), only the sulfate data are. presented here, with specific focus on their hydration. features and the changes seen in those features over. time. Spectra for two of the three samples, gypsum. and hexahydrite, are presented below. The spectra for. jarosite is not included as we saw no systematic measurable. difference in its spectra over the 38 days.
- D&P Instruments, Inc
- Alteration of hydration absorption features in reflectance ...
Volumetric Analysis & Three-Dimensional Visualization of Industrial Mineral Deposits
AbstractBase and precious metal deposits are typically characterized by a single parameter such as the total weight of mineable gold. Industrial mineral deposits, on the other hand, are characterized by their end-use. For example, the volumetric evaluation of a limestone deposit depends upon who’s buying the product. The concrete industry has a suite of evaluation parameters such as silica content and abrasion coefficients. Conversely, pharmaceutical-grade limestone buyers are more focused on the calcium/magn...
Permeation testing of PET bottles in the production of mineral water - Case Study
S.Pellegrino mineral water is recognized globally as one of the leading mineral waters on the market. Flowing from a thermal springs in the heart of the Orobic Alps, its properties were known and appreciated since the thirteenth century. In the late nineteenth century it reached peak popularity. In response to the growing demand for entire cases of water from the springs in 1899 the modern S.Pellegrino Company was founded, producing 35,345 bottles of which 5,562 were exported around the world.The taste of S.Pellegr...
Case study - VA Erzberg Gmbh – Austria - Mineral sorting/processing of ore
CustomerThe Styrian Erzberg mine is the largest open-pit mine in Central Europe.The company VA Erzberg GmbH extracts annually 7 million tons of material to produce 2 million tons of iron ore.The ratio between ore with an iron content of more than 30% and the preparation concentrate is 1:1, i.e. approx. 1 million tons reach the ore deposit directly from the mining level via a big crusher and a secondary crushing and screening plant. The remaining ore must be concentrated by means of a heavy liquid plant or a...
Top 10 Compliance Storylines from 2016
For the compliance sector, 2016 was a critical year. It was a year in which regional government bodies around the globe took on greater responsibility as gatekeepers of environmental and human rights standards in the corporate sector. It was also the year of the investor, where corporate decision makers became more concerned with transparency and accountability in supply chains. Finally, 2016 was most certainly a year in which consumer awareness and subsequent purchasing choices signaled a growing unwillingness...
Toxicological and Environmental Safety Data - Case Study
IntroductionAGRAGEL is a cross-linked copolymer of acrylic acid and acrylamide partially neutralized as potassium/ ammonium salt. The polymer is in its dry form a granulate and forms a gel-like material upon addition of water or aqueous solutions. Due to the cross-linking it is insoluble in water. Uptake of water is facilitated mainly by the negative carboxylic groups of the polymer and their hydration with water molecules. Complete solubilization is hindered because of the cross-linking of different polymer...