Synthesis of Propylene Carbonate by Urea Alcoholysis—Recent Advances

Organic carbonates are considered the chemicals of the future. In particular, propylene carbonate is widely used as a non-reactive solvent, plasticizer, fuel additive, and reagent, especially in the production of environmentally friendly polymers that are not harmful to human health. This paper reviews recent literature findings regarding the development of propylene carbonate synthetic methods starting from propane-1,2-diol and urea. The ammonia formed during the synthesis is recycled to obtain urea from carbon dioxide

Synthesis of Propylene Carbonate by Urea Alcoholysis—Recent Advances

Organic carbonates are considered the chemicals of the future. In particular, propylene carbonate is widely used as a non-reactive solvent, plasticizer, fuel additive, and reagent, especially in the production of environmentally friendly polymers that are not harmful to human health. This paper reviews recent literature findings regarding the development of propylene carbonate synthetic methods starting from propane-1,2-diol and urea. The ammonia formed during the synthesis is recycled to obtain urea from carbon dioxide

Gravimetric and hydrometric system for monitoring of mining tremors in Upper Silesia

The article presents the characteristics of the gravimetric and hydrometric system for observation of mining tremors in Upper Silesia. Individual system components were installed in the years 2018-2019 as part of the European Platform Observing System -Poland project with the acronym EPOS-PL, financed from the EU program - Intelligent Development. The system records the changes in gravitational acceleration and groundwater level with a frequency of 1 Hz in the mining and post-mining areas. The analysis of the measurement data collected allows evaluating the sensitivity of the system and the possibilities of its use in the mining seismicity studies in Upper Silesia, as well as monitoring rock mass movements under the influence of seismic and geodynamic phenomena in other parts of the world