It is concluded on the basis of calculations performed for different types of close packing of spherical particles that porous permeable ceramic materials with open porosity greater than 42 ± 3% it is can be created, in practice, from monofractional corundum powder. It is shown that the formation method (semidry pressing and slip casting) and the habit of the crystals affect the open porosity of the ceramic. The chemical resistance of the porous ceramic materials obtained to nitric acid and sodium hydroxide is evaluated.The problem of doubling the gross domestic product is closely linked with solving problems of ecology and the conservation of nonrenewable resources. One of the primary paths for solving such problems could be developing new ceramic materials, organizing the production of diverse articles from them, and wide industrial application of these articles as replacements for obsolete conventionally used materials. Porous permeable ceramic is one such promising material [1].Articles made from such ceramic are finding increasing industrial applications including, among many other applications, removing water from hydrometallurgical pulps after flotation, blowing inert gas through metal melts to mix the gas, filtering ferrous and non-ferrous metal melts to remove impurities from them, removing dust and admixtures of harmful gases from hot exhaust stack gases, flotation, aeration, and ozonation of water systems in fine-bubble gas-distribution systems, pneumatic transport and mixing of pulverized materials and highly dispersed powders, removing radioactive impurities from hot stack gases, removing solid impurities from solutions of metal electrolytes, and removing solid impurities from water in water recycling systems [2].The interest in articles made of porous permeable ceramic based on aluminum oxide is dictated by a special combination of properties which are inherent only to this material -high resistance to acid and alkali, high operating temperature, high heat resistance, and high durability. Modern technologies make it possible to obtain porous permeable ceramic materials with prescribed pore size and distribution. Special technological methods make it possible to manufacture large-size and long articles with different configurations [3].The technology of manufacturing articles from porous permeable ceramic materials is based on the use of ceramic filler-powders with a mono-or narrow-fractional composition together with a binder (high-plasticity clays, liquid glass, bentonite, phosphates). For monofractional powders, the open porosity of the articles is almost independent of the grain size. However, the size of the pores formed in an article is mainly determined by the size of the filler particles as well as by the amount of binder introduced, the degree of compac-