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alumina
high-alumina basalt
high-alumina basalt An
aphyric,
extrusive igneous rock of basaltic composition containing a high proportion of
modal plagioclase, and an alumina content of more than 17 wt.%. Tholeiitic and calc-alkali
basalts (see
THOLEIITE; and
CALCALKALINE) can have alumina contents of more than 17 wt.%, so the term does not refer to a specific basalt type. Rather, the variety of basalt should be specified, e.g. ‘high-alumina basalt of calc-alkali type’.
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Alumina: basic balance between supply and demand.(Inorganics)
Magazine article from: China Chemical Reporter; 2/26/2008; ; 700+ words
; Metallurgical-grade alumina (aluminum oxide) is an irreplaceable...therefore somewhat rigid. The sales of alumina in the international market mainly take...stability in the supply and the price of alumina. 1. Huge change of supply/ demand...
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Alumina import price may fall moderately in H2 as supply expands.
Newspaper article from: China Business News; 7/13/2005; 700+ words
; Alumina import price may fall moderately in H2...predicts in the latest report that the alumina import price will decline in the second...substantial increases in production capacity of alumina both overseas and within China. However...
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Alumina producers to cut production to combat declining prices.
Newspaper article from: China Business News; 5/24/2007; 700+ words
; Alumina producers to cut production to combat declining...May 24. INTERFAX-CHINA - Thirteen Chinese alumina producers have agreed to cut production in an attempt to stop the decline of alumina prices, company sources told Interfax today...
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Alumina profit rides demand swell in ChinaBUSINESS ASIA by Bloomberg
Newspaper article from: International Herald Tribune; 8/4/2006; ; 700+ words
; ...International Herald Tribune 08-04-2006 Alumina, which owns 40 percent of the world's biggest alumina producer, said Thursday that first-half...make aluminum rose on demand from China. Alumina shares gained.Net income rose to 260 million...
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Global Alumina Updates Status of Project.
PR Newswire; 1/31/2008; 700+ words
; TORONTO, Jan. 31 /PRNewswire/ -- Global Alumina Corporation ("Global Alumina" or the "Company") (TSX: GLA.U) announced...January 25th, the Board of Directors of Guinea Alumina Corporation, Ltd. held meetings in Brisbane...
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Reportlinker Adds China Alumina Industry Report, 2009.
PR Newswire; 11/10/2009; 700+ words
; ...is available in its catalogue. China Alumina Industry Report, 2009 http://www.reportlinker.com/p0158889/China-Alumina-Industry-Report-2009.ht ml#utm...utm_campaign=prnewswire Currently, alumina is mainly produced in Asia, Oceania...
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Global Alumina Releases Second Quarter 2007 Results.
PR Newswire; 8/14/2007; 700+ words
; TORONTO, Aug. 14 /PRNewswire-FirstCall/ -- Global Alumina Corporation (TSX: GLA.U) (the "Company" or "Global Alumina"), a company developing an alumina refinery located in the bauxite-rich region of the Republic of...
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Activated alumina for the removal of selenium oxyanions from heap leach detoxification solutions
Magazine article from: Minerals & Metallurgical Processing; 2/1/2004; ; 700+ words
; ...Adsorption onto activated alumina is among these possible...technologies. Activated aluminas. In the thermal...Such activated aluminas contain various...treatment. Such alumina adsorbents have...the form of the alumina (Parks, 1965...1990). In fact, aluminas can be modified...
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Alumina business booms
Newspaper article from: China Daily; 8/18/2003; ; 658 words
; ...plan to pour millions of dollars into the alumina industry to steal lucrative business from...billion yuan (US$722.9 million) alumina plant in Lianyuangang in East China...project will produce 500,000 tons of alumina each year. In June, Chinese billionaire...
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International Alumina Refinery Expert Graham Morrey Joins Global Alumina.
PR Newswire; 10/1/2004; 700+ words
; ...Managing Director Europe To Become Senior Vice President Global Alumina Products Corporation ("Global Alumina") (TSX-V: GPC.U), a company that proposes to produce alumina for sale to the global aluminum industry, announced today the...
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alumina
Book article from: The Columbia Encyclopedia, Sixth Edition
alumina or aluminum oxide, Al 2 O 3 , chemical compound with m...and very slightly soluble in strong acids and alkalies. Alumina occurs in two crystalline forms. Alpha alumina is composed of colorless hexagonal crystals with the properties...
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high-alumina basalt
Book article from: A Dictionary of Earth Sciences
high-alumina basalt An aphyric , extrusive igneous...proportion of modal plagioclase , and an alumina content of more than 17 wt.%. Tholeiitic...THOLEIITE ; and CALCALKALINE ) can have alumina contents of more than 17 wt.%, so the...
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Bauxite Industry
Encyclopedia entry from: International Encyclopedia of the Social Sciences
...chemically refined into 2 tons of the white powder alumina (aluminum oxide), then these 2 tons of alumina are smelted into 1 ton of aluminum ingot...worldwide, about 95 percent is converted to alumina; the remaining 5 percent is used in other...
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Bayer process
Book article from: The Columbia Encyclopedia, Sixth Edition
Bayer process procedure for obtaining alumina from the aluminum ore bauxite. The alumina can then be used for various industrial purposes...mixture, the bauxite slowly dissolves. The alumina released reacts with the sodium hydroxide to...
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Nippon Light Metal Company, Ltd.
Book article from: International Directory of Company Histories
...concentrates on the manufacture and sale of alumina chemical and chloride products; aluminum...chemicals containing aluminum hydrates, alumina, caustic soda, and fluorine. Fabricated...x2014; one at Niigata, the second, with alumina refining capabilities, at Shimizu. These...
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