Lignocellulosic composites are biodegradable, have low cost, neutrality to CO2 emission, easily processed, available and pause no health risks, therefore these materials been the subject of an increase interest. In addition, there is a continuous demand obtained from renewable resources waste recycling. that sense, in this study polyurethane (PU) residues were mixed with cork pine (up 70 wt/wt)...

Purpose. Research on the process intensification of gold-bearing product hydrometallurgical processing based mechanochemical milling initial sulphide material. Methods. Mechanochemical activating (oxidation) concentrate under conditions superfine milling, sulphite-thiosulphate leaching milled after liquid phase separation. The float sample with a particle size -0.074 mm, Au content is 15.5 g/t ...

Link for citation: Korovkin M.V., Ananyeva L.G., Zherlitsyn A.A., Kondratiev S.S., Savinova O.V., Kurskaya V.S. Assessment of crystallinity degree quartz raw materials. Bulletin the Tomsk Polytechnic University. Geo Аssets Engineering, 2023, vol. 334, no. 8, рр. 59-67. In Rus. The relevance research is determined by need to assess transformation materials in its natural occurrence, as well as, ...

Products of the refractory industry are key for production heavy goods such as steel and iron, cement, aluminum glass. Corresponding industries dependent on thermal processes to manufacture their products, which in turn would not be possible if there were no materials, bricks or mixes. For primary raw materials semi-finished products corundum, bauxite zircon used. Industrial recycling reduce de...