A B S T R A C TIn the production of alumina by the Bayer process\nfrom bauxite containing gibbsite and boehmite and having an\niron content below 5% (calculated as Fe2O3) the extraction\nof boehmite in the digestion stage (which is carried out at\n225-270掳C) is improved by ...
The Bayer process used for the extraction of alumina from bauxite ores is well documented (Technology Roadmap for Bauxite Residue Treatment and Utilisation, February 2000, The Aluminum Association see http://www.aluminum.org; Ed. Fathi Habashi,Hand Book of Extractive Metallurgy, Vol. II, Publ:...
This volume contains a collection of papers from five symposia, relating to a variety of topics, held at the TMS 2010 Annual Meeting in Seattle, Washington... E Williams 被引量: 0发表: 2016年 加载更多研究点推荐 Magnetic Separation Tailings Alumina Bauxite Residue ...
Alkaline roasting process was used to extract alumina from red mud and bauxite ores. The extraction efficiency of the alkali roasting process was around 98... V Tathavadkar,MP Antony,A Jha 被引量: 8发表: 2002年 Recovery of Al2O3, Fe2O3 and TiO2 from Bauxite Processing Waste (Red Mud...
process for the production of phosphatduengemitteln while extraction of alumina from aluminiumphosphaten or bauxiten phosphatic 来自 掌桥科研 喜欢 0 阅读量: 2 申请(专利)号: DEM0022905A 申请日期: 1954-04-29 公开/公告号: DE000001044119A
(OH) 3 wascalcinedtoα-Al 2 O 3 .Theoptimalconditionsofthewholetechnology weredeterminedbyexperiments.Thequalityofα-Al 2 O 3 productisuptothetechnicalindicatorofYS/T274-1998standard. Keywords:flyash;ammoniumhydrogensulfate;alumina;extraction 1Introduction Flyashisafineashseparatedfromthefluegasof coal...
It is reported that more than 90% of alumina is produced via the Bayer process. Thus, the Bayer bauxite residue accounts for a considerable percentage of the by-products of alumina extraction. For each ton of alumina produced, 1.0–1.5 tonnes of Bayer red mud is produced from different ...
Wang YX, Zhang TA, Lyu GZ, Guo FF, Zhang WG, Zhang YH (2018) Recovery of alkali and alumina from bauxite residue (red mud) and complete reuse of the treated residue. J Clean Prod 188:456–465 ArticleCASGoogle Scholar Wang YX, Zhang TA, Zhang TH, Lv GZ, Zhang WG (2019d) Transfor...
Method for extraction of gallium from aluminate-alkaline solutions in the production of alumina from aluminum-containing ores The proposed method makes it possible to extract gallium at a comparatively low cost from solutions in the processing, for example, of nephelines containing it in amounts whic...
1) extraction of oil 开采石油 2) mining 开采 1. Bauxiteminingand alumina production in Russia(Part A); 俄罗斯的铝土矿开采和氧化铝生产(上) 2. Mechanism and protection on subsidence and cover rock caving ofmining; 开采引起的覆岩冒落及地表沉陷的机理与防护 ...