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在从矿石中提取钨和钼的生产过程中形成大量的工业废料。这种细度为900～1000cm~2/g、容重为1400～1450kg/m~3、颗粒不大于0.05mm的疏松状材料内含SiO_2约62％、氧化钙与氧化镁超过10％、三价的氧化物约13％。在俄罗斯塔尔内乌斯克的钨钼联合企业就利用了该废料以及石灰、石膏胶结剂与火山灰、浮石砂制作了硅酸盐砖和多孔混凝土。 在硅酸盐砖制作混合料的成分中,以钨钼提取后的废料为主,以及CaO 9％、浮石砂在混合料SiO_2成分
In the production of tungsten and molybdenum from ore, a large amount of industrial waste is formed. The porous material with a fineness of 900-1000 cm-2/g, a bulk density of 1,400-1,450 kg/m 3, and a particle size of not more than 0.05 mm contains about 62% of SiO 2 , more than 10% of calcium oxide and magnesium oxide, and trivalent The oxide is about 13%. The Tungsten-Molybdenum complex in Tarneusk, Russia, used this waste as well as lime, gypsum binders, and pozzolan and pumice sands to make silicate bricks and porous concrete. In the composition of the mixture of silicate bricks, tungsten-molybdenum-based waste is mainly extracted, and CaO 9%, pumice sand in the mixture SiO 2