Category Archives: Year 2015 Issue 12

Jerzy ŚWIĄDROWSKI*, Piotr MOCEK, Eugeniusz JĘDRYSIK, Krzysztof STAŃCZYK, Joanna KRZEMIEŃ, Piotr KRAWCZYK, Jarosław CHEĆKO – Central Mining Institute (GIG), Katowice, Poland Please cite as: CHEMIK 2015, 69, 12, 815–826 Gasification is a group of multidirectional thermal and chemical transitions occurring at increased temperature between coal organic substance and gasifying agent, i.e. usually air, oxygen, steam or mixtures thereof. Depending on the process conditions, gasifying agent and coal properties, gas product is obtained with main components: hydrogen, carbon...

Monika Osińska-Broniarz*, Rafał Mańczak, Agnieszka Sierczyńska, Maciej Kopczyk – Institute of Non-Ferrous Metals, Division in Poznań, Central Laboratory of Batteries and Cells, Poznań, Poland Please cite as: CHEMIK 2015, 69, 12, 852–861 Several years ago chemical power sources supplied power exclusively with application of liquid electrolytes that have high ionic conductivity, thus allowing quick ion migration between opposite side electrodes, which enables obtaining large amount of electricity that can be given or stored in chemical power source...

Andrzej Mianowski* – Department of Inorganic, Analytical Chemistry and Electrochemistry,Faculty of Chemistry, Silesian University of Technology, Gliwice, Poland Please cite as: CHEMIK 2015, 69, 12, 805–814 When we try to approach the problem briefly: “coal for chemistry” we immediately recall known relation – both hard coal and brown coal are mainly power carriers, and to much smaller extents feedstock to be used in chemistry. Such an approach makes it difficult to place coking industry in one branch...

Adrian Krzysztof ANTOSIK*, Paulina BEDNARCZYK, Zbigniew CZECH - Institute of Organic ChemicalTechnology, West Pomeranian University of Technology in Szczecin, Poland Please cite as: CHEMIK 2015, 69, 12, 862–867 Pressure-sensitive adhesive (PSA) is a class of adhesive material that adheres to a substrate under light pressure and can be removed cleanly, on demand, without leaving residues on the substrate. They can be defined as a viscoelastic material, which in a solvent free state remains permanently tacky at room...

Tomasz Radko – Institute for Chemical Processing of Coal, Zabrze, Poland; Tomasz Siudyga* – Faculty of Chemistry, Silesian University of Technology, Gliwice, Poland Please cite as: CHEMIK 2015, 69, 12, 840–851 Coals were basic raw materials providing the initial development of energy and chemical technologies. Coal, gradually replaced by crude oil and natural gas, practically lost its position as a chemical feedstock. In energy production coals are regarded as a inefficient fuel and responsible for degradation of...