Huizhou top metals Ltd, Stand in March 1993, with a total investment of 120 million Yuan, covers an area of 30000 square meters, and has built more than current domestic advanced production lines, is a research and development, production of non-ferrous metals, alloys, sputtering target materials and functional materials of the national key high-tech enterprise. There are four general categories of our products: all kinds of commercial purity of metals and alloys; Variety of high purity metals and alloys; Sputtering of metals and alloys; Some rare earth functional materials. Products main has: metal SC, yttrium, La, CE, PR, ND, SM, europium, gadolinium, terbium, dysprosium, holmium, erbium-doped, thulium, ytterbium, lutetium, titanium, zirconium, hafnium, vanadium, NB, tantalum, chrome, MO, tungsten, manganese, iron, cobalt, nickel, copper, silver, gold, zinc, aluminum, indium, Tin and hafnium-iron, titanium-aluminum, yttrium-zirconium, nickel-titanium, titanium-zirconium , Aluminum-silicon, aluminum-copper, tungsten-copper, aluminum-boron, aluminum-manganese, aluminum-magnesium, aluminum-zirconium, aluminum-SC, aluminum-ND, La-nickel, nickel-chrome, CE-aluminum, magnesium-gadolinium, magnesium-SC, magnesium-boron, zirconium-vanadium, gadolinium-titanium, CE-zirconium-yttrium, gadolinium-iron-cobalt, gadolinium-titanium-zirconium, terbium-iron-cobalt, terbium-dysprosium-iron, aluminum-yttrium-nickel-cobalt, aluminum-magnesium-Silicon-Mo, aluminum-SC-nickel-rolling-zirconium, alloy and above metal and alloy of target material, function material. Sincerely welcome customers at home and abroad a lot of contact, technical and trade cooperation. Business consultation '18933289429-Mr
Rare earth metal rare earth metals (rare earth metals), also known as rare earth elements are periodic table III b SC, y, Lanthanide 17 elements called r or RE said. Rare earth metals are found starting at the end of 18th century. Rare earth metals between the luster of silver and iron. The chemical activity of rare earth metals is very strong. Rare earth metals define rare earth metals (rare earth metals), also known as rare earth elements are periodic table III b SC, y, Lanthanide 17 elements called r or RE said. Re metal name and chemical symbol they of name and chemical symbol is SC (Sc), yttrium (Y), La (La), CE (Ce), PR (Pr), ND (Nd), promethium (Pm), SM (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium-doped (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu). Their atomic number is 21 (Sc), 39 (Y), 57 (La) to 71 (Lu). Domestic reserves currently proven rare earth reserves, China, accounted for about 43% of the total world reserves of 210 million tons, the CIS amounted to 40 million tons, 43% 19.5% of the rare earth metal reserves, ranked second, United States 27 million tons, accounting for 12.86% of the world, ranking third. followed by Brazil, Australia, Viet Nam, Canada and India and other countries have a considerable amount. Currently control 98% of the world market share in China. Main imports from China in three countries: Japan, Korea, United States. Among them, Japan and Korea is no rare earth resources, while the United States has banned mining of rare earth resources. If China has maintained such export, after 20 years, China could be the rare small or rare earth free. Origin of rare earth metal rare earth is a historical name. Rare earth metals are found starting at the end of 18th century. Rare earth metals it is often called soil not water soluble solid oxide, alumina, for example clay. Rare earths are generally separated oxides, rare, hence the name rare earths. Property of rare-earth metals are similar, so in the coexisting minerals, but whose chemistry with other rare earth elements vary greatly, scandium is not included in the rare earth minerals. Rarest promethium was originally obtained from the reactor fission product of uranium, radioactive half-life of 147Pm for 2.7 years. promethium does not exist in nature in the past, until 1965, Finland a phosphate plant in dealing with apatite found traces of promethium. Development of rare earth metals in 1787 Sweden people Arrhenius (C.A. Arrhenius) at Ytterby near Stockholm (Ytterby) small town found an unusual black rare earth metal ore in 1794, Finland plus multiple forest (J.Gadolin) is detached from a new material. Three years Hou (1797), Sweden people Eckerberg (A.G.Ekeberg) confirmed has this a found, and to found names to new of material named for yttria (yttrium soil). later to Memorial Gadolin, said this ore for gadolinite (added more forest mine, that Silicon beryllium yttrium mine). 1803 Germany chemist Martin Heinrich Klaproth (M.H.Klaproth), Sweden chemist Bell mining Liius (J.J.Berzelius) and xixingeer (W. Hisinger) from a mineral (CE-silicon)-CE has found a new substance in soil (ceria). 1839 Sweden people musangdeer (C.G. Mosander) found lanthanum. In 1843, musangdeer erbium and terbium were found. In 1878, Switzerland who discovered ytterbium j.c.g.marignac. 1879 French Boisbaudran discovered samarium, Sweden who Cliff (P.T.Cleve) found holmium and Thulium Sweden people Nihlsson (L.F. Nilson) discovered scandium. 1880 Switzerland people found GD j.c.g.marignac. 1885 Austria people of Wales Bach (a. von Wels-bach) found that praseodymium and neodymium. 1886 Boisbaudran discovered dysprosium. In 1901 the French Demarquay (E.A.Demarcay) europium discovered. In 1907 the Frenchman Urbain (G.Urbain) discovered lutetium. 1947 American Mariinsky (J.A.Marinsky) gained from uranium fission, such as promethium. Separate yttrium from the 1794 more forest soils to 1947 promethium, which lasted more than 150 years. Rare earth industry began in the rare earth industry in the 1880 of the 19th century. From monazite (thorium and rare earth minerals) in the extraction of thorium Lantern gauze cover, it is useless to rare earth and rare earth metals byproduct. By the early 20th century, rare earth in Flint, carbon arc rods, glass coloring and polishing powder are applied one after another. While electric lights replaced gas lamps, and in the processing of monazite, thorium and rare earths main translocation. During the second world war, demand for thorium as nuclear technology and mass production, again becomes a by-product of the process of processing of monazite rare earths, but purity is not high, not widely. In the 50, due to ion exchange and solvent extraction techniques used successfully in the separation and purification of rare earth, improve purity rare earth products and lower prices. 60, used as a petroleum cracking catalyst and preparation of rare earth phosphors; 70 's rare earth cobalt permanent magnet, and rare earth in steel-making, which promoted the rapid development of rare earth industry. China in the late 50 got all rare earth metals except promethium, early 60 's industrial production. 1972 produced promethium. 0.0153% rare earth metal rare earth on the Earth, crustal abundance of CE (0.0046%). second is y; ND; la (table 1). Huizhou, the company's supply of rare earth metals metal, quality assurance, welcomed the talks.
Huizhou, the company's supply of rare earth metals metal, quality assurance, welcomed the talks.