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Industrial Materials Objects
Diatomites of Karelia
There are 13 known deposits and 115 manifestations of diatomites in Karelia. Diatomites of Karelia consist of siliceous open-work shells of microscopic (~10-30 micron) alga-diatomia and lie on bottoms of small lakes. Due to the fine disperse composition, high content of opal silica (up to 95%), low specific weight (0,2–0,8 gram/cubic centimeter) and large specific surface (>40 square meters/gram of sediment) diatomites possess excellent fire-resistant, adsorptive, heat insulation and abrasive features, they are acid-resistant and inert materials, which allows using them as adsorbents, filters, chemical carriers, fillers, thin abrasives in industry and agriculture. Reserves are estimated at 5 million cubic meters, forecast resources are 250–300 million cubic meters.
Garnet ore
Garnet ore found in the northern part of Karelia can be used for production of abrasive cloth (wood processing), abrasive grain (polishing of television tubes), filter grain (filtration and bactericidal processing of drinking water). At the experimental abrasive plant in St. Petersburg on the basis of Karelian garnet product an abrasive cloth was made, which was successfully tested at the furniture factory «Ladoga».
Plans for the nearest future are first to complete exploration of the deposit with organization of test extraction. The volume of the extracted ore mass may be considered at the level of 2,000-2,500 tons per year, which will ensure production of garnet concentrate at the level of 300 tons per year. Enrichment can be performed on the module set. Standard sets are made domestically and abroad.
At the second stage – putting enrichment factory in Louhsky district into operation; increasing capacity up to 50 thousand tons of ore per year.
Incidentally, there are no mined garnet deposits on the territory of Russia.
Quartz in Karelia
In recent decades there is great demand in the world for the strategic raw material – super pure quartz: for using in fiber-optical communication lines. The conducted research demonstrated that Karelia is a promising region of Russia for production of exceptionally pure quartz.
Kianite of Loukhi district
Kianite is a perspective raw material for production of refractory. During comparative tests at the all-Russian Institute of Aviation Materials (VIAM, Moscow)
it was established that ceramic forms of Karelian kainite for casting turbine buckets of aircraft and rocket engines after roasting at the temperature 1060° possess sufficient strength exceeding the strength of similar materials by three times, where
Ukrainian kainite-sillimanite was used.
Hizovaara deposit of kainite ore belongs to the industrial base of high aluminous rocks of Russia. This deposit is the one which is best prepared for development. At present, there are no mined kianite deposits on the territory of Russia.
Anorthosite of Karelia
Anorthosite of Karelia is a new unconventional kind of feldspar raw material for Russia. The feldspar concentrate after the enrichment process and classification by size can become a multi-purpose raw material. It is used in white ware, glass production, building ceramics such as flux and other spheres.
Preliminary estimates of forecast resources show sufficient amounts for organization of extraction with annual productivity up to 100 thousand tons and more.
Low-iron mica-muscovite
Low-iron mica-muscovite of Northern Karelia is a new type of pure industrial minerals. The ore of this type, thanks to the low content of iron impurity and high technological properties of muscovite, is a unique raw material for production of pearl pigments. There are no analogies to it in Russia.
Small-size muscovite is used in electronics, production of paint-and-lacquer materials, wallpaper, cosmetics, rubber products as well as for special technology of producing polymer and pigments.
Contact information: Ministry of Natural Resources and Ecology of the 185035, +7 (814-2) 79-67-01, Fax +7 (814-2) 79-67-42, e-mail: ecopetr@karelia.ru The Institute of Geology, the Further information: http://www.krc.karelia.ru |
