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El BRAY, U.S. Geological Society

机译:美国地质学会El BRAY

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The United States relies on imports for nearly all of the bauxite it consumes. Small amounts of bauxite and bauxitic clays are produced in Alabama, Arkansas and Georgia for nonmetallurgical uses.Metallurgical-grade (crude dry) bauxite imports in 2007 totaled 9.84 Mt (10.84 million st), 15 percent less than the quantity imported in 2006. The decline in im-ports likely was because of the temporary closure of Ormet's refinery at Burnside, LA at the end of 2006 that continued throughout 2007. Jamaica (45 percent), Guin-ea (20 percent) and Brazil (14 percent) were the leading suppliers to the United States in 2007.In 2007, 247 kt (272,300 st) of refractory-grade cal-cined bauxite was imported, a 42-percent increase, com-pared with 2006. The increase in imports may be the result of a 25-percent increase in U.S. exports of refrac-tory products made with bauxite, such as bricks and cru-cibles, which were then shipped to global steel producers. China (48 percent), Brazil (37 percent) and Guyana (15 percent) were the sources of refractory-grade calcined bauxite imports to the United States.
机译:美国几乎所有消耗的铝土矿都依赖进口。在阿拉巴马州,阿肯色州和佐治亚州生产少量的铝土矿和铝土矿用于非冶金用途。2007年,冶金级(粗干)铝土矿的进口总量为9.84 Mt(1084万吨),比2006年的进口量少15%。进口量下降的原因可能是由于2006年底在洛杉矶伯恩赛德的Ormet炼油厂暂时关闭,并在整个2007年持续进行。牙买加(45%),Guin-ea(20%)和巴西(14%)是2007年是美国的主要供应商。2007年,进口了247 kt(272,300 st)耐火级煅烧铝土矿,与2006年相比增长了42%。进口量的增加可能是由于美国用铝土矿制成的耐火制品(例如砖和坩埚)的出口量增加了25%,然后运往全球钢铁生产商。中国(48%),巴西(37%)和圭亚那(15%)是从美国进口的耐火级煅烧铝土矿的来源。

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