The chemical and mineral composition of gabbroids of the pre-Jurassic basement of the Syunay-Salin area located in the Arctic part of the West Siberian megabasin on Yamal Peninsula is studied. Borehole 45 has drilled a layered gabbrodiorite intrusion, which was previously considered monotonic diorite one. The gabbroids are metamorphosed under conditions of the lower degree of the greenschist facies of metamorphism and also underwent propylitization, which is resulted in the formation of sulfdes including pyrite, chalcopyrite, also pyrrhotite, pentlandite, cubanite, samaniite and galena. According to mineral geothermometers, sulfde dissemination in Syunay-Salin gabbroids formed at temperature of ~200 °С.

The results of studying the mineralogy of metamorphic schists from the Pre-Jurassic base of the Arctic part of the West Siberian plate are presented. The accessory and ore mineralization of schists from the Zapadno-Yarotinsky license area located in the southern part of the Yamal Peninsula is studied. The schists was uncovered by the Zapadno-Yarotinskaya No. 300 well at a depth of 2762 m. Above the section, the metamorphic rocks are overlain by a young Meso-Cenozoic cover. The schists are mainly composed of quartz, plagioclase (albite), carbonates (dolomite and siderite), mica (muscovite) and chlorite (donbassite). The discovered accessory and ore minerals in the metamorphic schists of the Zapadno-Yarotinsky area can be divided into two groups. The first group includes minerals that were formed during the metamorphism of schists, or were preserved as detrital matter. These minerals include zircon, fluorapatite, and rutile as the most stable compounds. The remaining mineralization (pyrite, sphalerite, chalcopyrite, cubanite, galena, cobaltite, barite, xenotime-(Y), goyazite, synchysite-(Nd), native silver and copper) is clearly secondary and was formed as a result of superimposed metasomatic processes. Judging from the described mineralogy, the schists underwent changes as a result of superimposed propyllitization. The temperature range of this process is determined by the formation of cubanite in association with chalcopyrite at a temperature of 200-210 оС.

The mineralogy of slags of the Shuvakish ironworks plant is studied. The plant had been operated during the reign of Peter the Great from 1704 to 1716 years and was located within the present-day northwestern outskirts of Yekaterinburg. The slags are composed of fayalite aggregate with a signifcant content of hercynite and wustite and contain spherules of iron, glass, leucite and ferromerrillite. The chemical composition of rock-forming and ore minerals is determined on a JSM-6390LV (Jeol) SEM equipped with an INCA Energy 450 X-Max 80 EDS (Oxford Instruments) (Institute of Geology and Geochemistry UB RAS, Yekaterinburg). The slags formed as a result of bloomery iron production. Their formation temperature is estimated in a range of 1177 °С on the basis of eutectic crystallization of wustite and fayalite. The Shuvakish plant was supplied with marsh iron ore, which was most likely extracted in the nearest Moleben swamp located to the north from the plant.

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A range of refractory products and equipment produced by the Japanese company Shinagawa Refractories is provided. Specific properties of the products manufactured are indicated. for bottom steel tapping from electric arc steel melting furnace (EASF), slide gate systems, gas blowing plugs, submerged entry nozzles (SENs), mold powders for CCM.The company Shinagawa Refractories, founded in Japan in 1875, has been concerned over 135 years with the supply of refractory products and equipment for all branches of industry where there is a requirement for using refractory materials. Today the range of company products includes refractory items and equipment for metallurgy, refractories for the ceramic and cement industry, and special products for electric power engineering. The key principles of the company over many years remain success for the consumer, introduction and innovation, and environmental protection.Being one of the world leaders in refractory production, the company constantly expands its presence in the market for refractory materials throughout the world. The main production capacity of the company is concentrated in Japan in eight modern refractory plants and several large research centers equipped with the newest electronic and computing technology, and equipment for analysis and simulating refractory operation. In several Japanese plants there is also production of metallurgical equipment. Overseas subdivisions of the company include plants in China, Oceania, and the USA. In plants outside Japan there is production of magnesia blocks, and pressed and unmolded refractory objects. Each enterprise of the company strictly follows the established program of production modernization and optimization, steadily improving quality and reducing production costs, and this is one of the priorities of the company. Supply of finished product is accomplished through engineering and trade companies of Europe, South America and Japan. Today products of the company Shinagawa Refractories are accessible for the CIS market where a complete spectrum of products and materials is offered, including the very latest developments in the field of refractory technology and metallurgical equipment. LINING OF OXYGEN CONVERTERSOne of the forms of refractory product most in demand in steel production is lining of oxygen converters. The company produces a whole spectrum of refractories for all areas of a converter lining, including bottom lances, tap-hole blocks, and brick and large magnesia-carbon blocks, which are now acquiring great popularity and expansion in the metallurgical enterprises of Japan, China, and Europe. Today Shinagawa Refractories supplies of the order of 25% of the Japanese market for magnesia refractories for oxygen converters, which makes it the largest producer of refractory products in the country.