- active alumina
- active alumina Tonerde f
English-German dictionary of Electrical Engineering and Electronics. 2013.
English-German dictionary of Electrical Engineering and Electronics. 2013.
alumina — /euh looh meuh neuh/, n. the natural or synthetic oxide of aluminum, Al2O3, occurring in nature in a pure crystal form as corundum. Also called aluminum oxide. [1780 90; < L alumin , s. of alumen ALUM1 + A4] * * * ▪ chemical compound… … Universalium
Beta-alumina solid electrolyte — (BASE) is a fast ion conductor material used as a membrane in several types of molten salt electrochemical cell. There is no known substitute.β Alumina ( beta prime prime alumina ) is an isomorphic form of aluminium oxide (Al2O3) a hard… … Wikipedia
Silica-alumina — is also known as alumino silicate(s). It is an oxide like combination of aluminium, silicon and oxygen, and it has a major component of kaolin and clays.When amorphous silica alumina is treated with strong acids such as hydrochloric and… … Wikipedia
catalysis — catalytic /kat l it ik/, adj., n. catalytical, adj. catalytically, adv. /keuh tal euh sis/, n., pl. catalyses / seez /. 1. Chem. the causing or accelerating of a chemical change by the addition of a catalyst. 2. an action between two or more… … Universalium
Rio Tinto Group — Rio Tinto Limited plc Type Public company (ASX: RIO, LSE: … Wikipedia
soil — soil1 soilless, adj. /soyl/, n. 1. the portion of the earth s surface consisting of disintegrated rock and humus. 2. a particular kind of earth: sandy soil. 3. the ground as producing vegetation or as cultivated for its crops: fertile soil. 4. a… … Universalium
Business and Industry Review — ▪ 1999 Introduction Overview Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… … Universalium
Australia — /aw strayl yeuh/, n. 1. a continent SE of Asia, between the Indian and the Pacific oceans. 18,438,824; 2,948,366 sq. mi. (7,636,270 sq. km). 2. Commonwealth of, a member of the Commonwealth of Nations, consisting of the federated states and… … Universalium
petroleum refining — Introduction conversion of crude oil into useful products. History Distillation of kerosene and naphtha The refining of crude petroleum owes its origin to the successful drilling of the first oil well in Titusville, Pa., in 1859. Prior to… … Universalium
Aluminium industry in Russia — The Aluminium industry in Russia was arguably founded on 14 May 1932 when the Volkhov smelter in the Leningrad Oblast produced its first batch of aluminium. One year later, the first aluminium was produced by the Dneprovsky smelter in Ukraine.… … Wikipedia
igneous rock — Any of various crystalline or glassy, noncrystalline rocks formed by the cooling and solidification of molten earth material (magma). Igneous rocks comprise one of the three principal classes of rocks, the others being metamorphic and sedimentary … Universalium